Nuveen Quality Municipal Income Fund

 

 

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number 811-09297

Nuveen Quality Municipal Income Fund

(Exact name of registrant as specified in charter)

Nuveen Investments

    333 West Wacker Drive, Chicago, Illinois 60606    

(Address of principal executive offices) (Zip code)

Gifford R. Zimmerman

Vice President and Secretary

    333 West Wacker Drive, Chicago, Illinois 60606    

(Name and address of agent for service)

Registrant’s telephone number, including area code:    312-917-7700    

Date of fiscal year end:      October 31      

Date of reporting period:  July 31, 2017

Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

 

 

 

 

 


Item 1. Schedule of Investments

 

 




NAD
Nuveen Quality Municipal Income Fund
Portfolio of Investments July 31, 2017 (Unaudited)
Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    LONG-TERM INVESTMENTS – 150.7% (98.4% of Total Investments)        
    MUNICIPAL BONDS – 150.7% (98.4% of Total Investments)        
    Alabama – 0.7% (0.4% of Total Investments)        
    Alabama State Port Authority, Docks Facilities Revenue Bonds, Refunding Series 2017A:        
$ 5,000   5.000%, 10/01/33  –  AGM Insured (Alternative Minimum Tax)   10/27 at 100.00 A- $5,759,200
5,455   5.000%, 10/01/34  –  AGM Insured (Alternative Minimum Tax)   10/27 at 100.00 A- 6,262,886
5,550   5.000%, 10/01/35  –  AGM Insured (Alternative Minimum Tax)   10/27 at 100.00 A- 6,356,470
1,000   Jefferson County, Alabama, Limited Obligation School Warrants, Education Tax Revenue Bonds, Series 2004A, 5.250%, 1/01/23 (Pre-refunded 8/15/17)  –  AGM Insured   8/17 at 100.00 A2 (4) 1,001,750
1,000   Lower Alabama Gas District, Alabama, Gas Project Revenue Bonds, Series 2016A, 5.000%, 9/01/46   No Opt. Call A3 1,257,400
18,005   Total Alabama       20,637,706
    Alaska – 0.8% (0.5% of Total Investments)        
    Alaska Industrial Development and Export Authority, Power Revenue Bonds, Snettisham Hydroelectric Project, Refunding Series 2015:        
1,580   5.000%, 1/01/24 (Alternative Minimum Tax)   No Opt. Call Baa2 1,818,359
3,400   5.000%, 1/01/25 (Alternative Minimum Tax)   No Opt. Call Baa2 3,931,012
1,000   5.000%, 1/01/28 (Alternative Minimum Tax)   7/25 at 100.00 Baa2 1,128,330
1,075   5.000%, 1/01/29 (Alternative Minimum Tax)   7/25 at 100.00 Baa2 1,201,775
300   5.000%, 1/01/31 (Alternative Minimum Tax)   7/25 at 100.00 Baa2 330,981
    Northern Tobacco Securitization Corporation, Alaska, Tobacco Settlement Asset-Backed Bonds, Series 2006A:        
940   4.625%, 6/01/23   10/17 at 100.00 Ba2 943,421
14,500   5.000%, 6/01/32   10/17 at 100.00 B3 14,035,710
1,500   5.000%, 6/01/46   10/17 at 100.00 B3 1,435,050
24,295   Total Alaska       24,824,638
    Arizona – 3.2% (2.1% of Total Investments)        
980   Apache County Industrial Development Authority, Arizona, Pollution Control Revenue Bonds, Tucson Electric Power Company, Series 20102A, 4.500%, 3/01/30   3/22 at 100.00 A- 1,057,214
2,500   Arizona Health Facilities Authority, Revenue Bonds, Scottsdale Lincoln Hospitals Project, Refunding Series 2014A, 5.000%, 12/01/39   12/24 at 100.00 A2 2,811,075
    Arizona Sports and Tourism Authority, Tax Revenue Bonds, Multipurpose Stadium Facility Project, Refunding Senior Series 2012A:        
1,490   5.000%, 7/01/30   7/22 at 100.00 A 1,622,416
2,500   5.000%, 7/01/32   7/22 at 100.00 A 2,713,225
2,335   5.000%, 7/01/36   7/22 at 100.00 A 2,521,987
11,795   Maricopa County Industrial Development Authority, Arizona, Revenue Bonds, Banner Health, Refunding Series 2016A, 4.000%, 1/01/36   1/27 at 100.00 AA- 12,497,628
11,740   Phoenix Civic Improvement Corporation, Arizona, Airport Revenue Bonds, Junior Lien Series 2010A, 5.000%, 7/01/40   7/20 at 100.00 A+ 12,885,237


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Arizona (continued)        
    Phoenix Civic Improvement Corporation, Arizona, Airport Revenue Bonds, Senior Lien Series 2008A:        
$ 4,650   5.000%, 7/01/33   7/18 at 100.00 AA- $4,808,379
8,200   5.000%, 7/01/38   7/18 at 100.00 AA- 8,479,292
7,000   Phoenix Civic Improvement Corporation, Arizona, Revenue Bonds, Civic Plaza Expansion Project, Series 2005B, 5.500%, 7/01/39  –  FGIC Insured   No Opt. Call AA 9,264,710
5,000   Phoenix, Arizona, Civic Improvement Corporation, Senior Lien Airport Revenue Bonds, Tender Option Bond Trust 2016-XF0388, 8.391%, 7/01/38 (IF) (5)   7/18 at 100.00 Aa3 5,340,600
1,000   Pima County Industrial Development Authority, Arizona, Revenue Bonds, Tucson Electric Power Company, Series 2010A, 5.250%, 10/01/40   10/20 at 100.00 A- 1,072,300
1,000   Pinal County Electrical District 4, Arizona, Electric System Revenue Bonds, Refunding Series 2015, 4.000%, 12/01/38  –  AGM Insured   12/25 at 100.00 AA 1,045,030
    Salt Verde Financial Corporation, Arizona, Senior Gas Revenue Bonds, Citigroup Energy Inc. Prepay Contract Obligations, Series 2007:        
500   5.500%, 12/01/29   No Opt. Call BBB+ 614,685
24,765   5.000%, 12/01/37   No Opt. Call BBB+ 29,892,841
1,100   Student and Academic Services LLC, Arizona, Lease Revenue Bonds, Northern Arizona University Project, Series 2014, 5.000%, 6/01/34  –  BAM Insured   6/24 at 100.00 A2 1,247,686
802   Watson Road Community Facilities District, Arizona, Special Assessment Revenue Bonds, Series 2005, 6.000%, 7/01/30   10/17 at 100.00 N/R 780,555
87,357   Total Arizona       98,654,860
    Arkansas – 0.1% (0.0% of Total Investments)        
2,055   Arkansas State University, Student Fee Revenue Bonds, Jonesboro Campus, Series 2013, 4.875%, 12/01/43   12/23 at 100.00 A1 2,242,827
    California – 17.2% (11.2% of Total Investments)        
1,500   ABAG Finance Authority for Non-Profit Corporations, California, Cal-Mortgage Insured Revenue Bonds, Channing House, Series 2010, 6.000%, 5/15/30   5/20 at 100.00 AA- 1,707,315
    Alameda Corridor Transportation Authority, California, Revenue Bonds, Refunding Subordinate Lien Series 2004A:        
185   0.000%, 10/01/20  –  AMBAC Insured   No Opt. Call Baa2 175,014
9,015   0.000%, 10/01/20  –  AMBAC Insured (ETM)   No Opt. Call Aaa 8,681,896
1,535   Alameda Corridor Transportation Authority, California, Revenue Bonds, Senior Lien Series 1999A, 0.000%, 10/01/37  –  NPFG Insured   No Opt. Call A3 704,412
13,000   Anaheim Public Financing Authority, California, Lease Revenue Bonds, Public Improvement Project, Refunding Series 2007A-1, 4.375%, 3/01/37  –  FGIC Insured   9/17 at 100.00 A 13,024,180
    Anaheim Public Financing Authority, California, Lease Revenue Bonds, Public Improvement Project, Series 1997C:        
2,945   0.000%, 9/01/27   No Opt. Call A2 2,155,298
7,150   0.000%, 9/01/28  –  AGM Insured   No Opt. Call A2 4,981,762
2,455   0.000%, 9/01/32  –  AGM Insured   No Opt. Call A2 1,379,145
200   0.000%, 9/01/35  –  AGM Insured   No Opt. Call A2 97,376
    Bay Area Toll Authority, California, Revenue Bonds, San Francisco Bay Area Toll Bridge, Series 2013S-4:        
10,000   5.000%, 4/01/38   4/23 at 100.00 A1 11,463,700
3,500   5.250%, 4/01/53   4/23 at 100.00 A1 4,018,455


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
$ 1,055   Brisbane School District, San Mateo County, California, General Obligation Bonds, Election 2003 Series 2005, 0.000%, 7/01/35  –  AGM Insured   No Opt. Call A2 $545,076
    Byron Unified School District, Contra Costa County, California, General Obligation Bonds, Series 2007B:        
60   0.000%, 8/01/32  –  SYNCORA GTY Insured (ETM)   No Opt. Call Aa3 (4) 40,545
1,640   0.000%, 8/01/32  –  SYNCORA GTY Insured   No Opt. Call A+ 957,481
    Calexico Unified School District, Imperial County, California, General Obligation Bonds, Series 2005B:        
3,685   0.000%, 8/01/31  –  FGIC Insured   No Opt. Call A3 2,311,232
4,505   0.000%, 8/01/33  –  FGIC Insured   No Opt. Call A3 2,529,513
2,820   California County Tobacco Securitization Agency, Tobacco Settlement Asset-Backed Bonds, Sonoma County Tobacco Securitization Corporation, Series 2005, 5.000%, 6/01/26   10/17 at 100.00 B- 2,799,752
    California Health Facilities Financing Authority, California, Revenue Bonds, Sutter Health, Refunding Series 2016B:        
7,000   5.000%, 11/15/46   11/26 at 100.00 AA- 8,090,460
25,520   5.000%, 11/15/46 (UB) (5)   11/26 at 100.00 Aa3 29,495,506
5,950   California Health Facilities Financing Authority, Revenue Bonds, Providence Health & Services, Series 2009B, 5.500%, 10/01/39   10/19 at 100.00 AA- 6,452,715
710   California Health Facilities Financing Authority, Revenue Bonds, Saint Joseph Health System, Series 2013A, 5.000%, 7/01/37   7/23 at 100.00 AA- 807,043
    California Health Facilities Financing Authority, Revenue Bonds, Stanford Hospitals and Clinics, Tender Option Bond Trust 2016-XG0049:        
790   8.642%, 8/15/51 (IF) (5)   8/22 at 100.00 AA- 976,527
825   8.648%, 8/15/51 (IF) (5)   8/22 at 100.00 AA- 1,019,964
2,140   8.648%, 8/15/51 (IF) (5)   8/22 at 100.00 AA- 2,645,725
9,545   California Health Facilities Financing Authority, Revenue Bonds, Sutter Health, Tender Option Bond Trust 2015-XF0078, 12.186%, 11/15/48 (Pre-refunded 5/15/18)  –  Insured (IF)   5/18 at 100.00 Aa3 (4) 12,303,696
3,250   California Municipal Finance Authority, Revenue Bonds, Community Medical Centers, Series 2017A, 5.000%, 2/01/42   2/27 at 100.00 Baa1 3,669,153
4,000   California Pollution Control Financing Authority, Solid Waste Disposal Revenue Bonds, Waste Management Inc., Series 2015A-1, 3.375%, 7/01/25 (Alternative Minimum Tax)   No Opt. Call A- 4,221,920
810   California State Public Works Board, Lease Revenue Bonds, Various Capital Projects, Series 2009-I, 6.375%, 11/01/34 (Pre-refunded 11/01/19)   11/19 at 100.00 A+ (4) 908,642
    California State Public Works Board, Lease Revenue Bonds, Various Capital Projects, Series 2010A-1:        
1,530   5.750%, 3/01/30 (Pre-refunded 3/01/20)   3/20 at 100.00 A+ (4) 1,716,201
1,000   6.000%, 3/01/35 (Pre-refunded 3/01/20)   3/20 at 100.00 A+ (4) 1,128,060
815   California State Public Works Board, Lease Revenue Bonds, Various Capital Projects, Series 2013I, 5.000%, 11/01/38   11/23 at 100.00 A+ 928,391
55   California State, General Obligation Bonds, Refunding Series 2007, 4.500%, 8/01/30   10/17 at 100.00 AA- 55,130
65   California State, General Obligation Bonds, Series 1997, 5.000%, 10/01/18  –  AMBAC Insured   10/17 at 100.00 AA- 65,208


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
    California State, General Obligation Bonds, Various Purpose Series 2010:        
$ 2,100   5.250%, 3/01/30   3/20 at 100.00 AA- $2,322,201
3,000   5.500%, 3/01/40   3/20 at 100.00 AA- 3,320,010
4,250   5.250%, 11/01/40   11/20 at 100.00 AA- 4,785,075
500   California Statewide Communities Development Authority, California, Revenue Bonds, Loma Linda University Medical Center, Series 2014A, 5.250%, 12/01/44   12/24 at 100.00 BB 544,995
    California Statewide Communities Development Authority, California, Revenue Bonds, Loma Linda University Medical Center, Series 2016A:        
6,000   5.000%, 12/01/46   6/26 at 100.00 BB 6,484,200
3,070   5.250%, 12/01/56   6/26 at 100.00 BB 3,350,659
    California Statewide Communities Development Authority, Revenue Bonds, American Baptist Homes of the West, Series 2010:        
900   6.000%, 10/01/29   10/19 at 100.00 BBB+ 973,890
1,030   6.250%, 10/01/39   10/19 at 100.00 BBB+ 1,119,816
2,250   California Statewide Communities Development Authority, Revenue Bonds, Cottage Health System Obligated Group, Series 2010, 5.250%, 11/01/30   11/20 at 100.00 A+ 2,473,560
1,050   California Statewide Communities Development Authority, School Facility Revenue Bonds, Aspire Public Schools, Series 2010, 6.000%, 7/01/40 (Pre-refunded 1/01/19)   1/19 at 100.00 N/R (4) 1,125,747
    California Statewide Community Development Authority, Revenue Bonds, Daughters of Charity Health System, Series 2005A:        
2,640   5.750%, 7/01/30 (6)   10/17 at 100.00 CCC 2,635,090
7,230   5.500%, 7/01/39 (6)   10/17 at 100.00 CCC 6,867,994
6,025   California Statewide Community Development Authority, Revenue Bonds, Methodist Hospital Project, Series 2009, 6.750%, 2/01/38 (Pre-refunded 8/01/19)   8/19 at 100.00 N/R (4) 6,718,236
6,550   California Statewide Community Development Authority, Revenue Bonds, St. Joseph Health System, Series 2007A, 5.750%, 7/01/47 (Pre-refunded 7/01/18)  –  FGIC Insured   7/18 at 100.00 AA- (4) 6,849,531
4,890   Clovis Unified School District, Fresno County, California, General Obligation Bonds, Series 2006B, 0.000%, 8/01/26  –  NPFG Insured   No Opt. Call A3 3,908,186
1,000   Coachella Valley Unified School District, Riverside County, California, General Obligation Bonds, Series 2005A, 0.000%, 8/01/30  –  FGIC Insured   No Opt. Call A 660,240
5,045   Culver City Redevelopment Agency, California, Tax Allocation Revenue Bonds, Redevelopment Project, Capital Appreciation Series 2011A, 0.000%, 11/01/27   11/21 at 61.42 BBB+ 2,730,657
1,260   Davis Redevelopment Agency, California, Tax Allocation Bonds, Davis Redevelopment Project, Subordinate Series 2011A, 7.000%, 12/01/36   12/21 at 100.00 A+ 1,532,929
4,000   East Bay Municipal Utility District, Alameda and Contra Costa Counties, California, Water System Revenue Bonds, Series 2014C, 5.000%, 6/01/44   6/24 at 100.00 Aa1 4,614,920
3,010   El Camino Community College District, California, General Obligation Bonds, Election of 2002 Series 2012C, 0.000%, 8/01/25   8/22 at 100.00 AA 2,536,377
3,500   Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Refunding Senior Lien Series 2015A, 0.000%, 1/15/34  –  AGM Insured   No Opt. Call BBB- 1,848,770
    Foothill/Eastern Transportation Corridor Agency, California, Toll Road Revenue Bonds, Refunding Series 2013A:        
1,480   5.750%, 1/15/46   1/24 at 100.00 BBB- 1,704,753
6,480   6.000%, 1/15/49   1/24 at 100.00 BBB- 7,480,318
1,500   Gavilan Joint Community College District, Santa Clara and San Benito Counties, California, General Obligation Bonds, Election of 2004 Series 2011D, 5.750%, 8/01/35   8/21 at 100.00 AA- 1,728,780


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
$ 9,930   Golden State Tobacco Securitization Corporation, California, Enhanced Tobacco Settlement Asset-Backed Revenue Bonds, Refunding Series 2015A, 5.000%, 6/01/45   6/25 at 100.00 A+ $11,385,241
    Golden State Tobacco Securitization Corporation, California, Enhanced Tobacco Settlement Asset-Backed Revenue Bonds, Series 2005A:        
3,455   0.000%, 6/01/24  –  AMBAC Insured   No Opt. Call A+ 2,997,765
3,500   0.000%, 6/01/26  –  AGM Insured   No Opt. Call A1 2,847,390
    Golden State Tobacco Securitization Corporation, California, Tobacco Settlement Asset-Backed Bonds, Series 2007A-1:        
25,335   5.000%, 6/01/33   10/17 at 100.00 B3 25,335,000
8,110   5.125%, 6/01/47   10/17 at 100.00 B- 8,010,490
2,825   5.750%, 6/01/47   10/17 at 100.00 B3 2,825,000
2,500   Huntington Beach Union High School District, Orange County, California, General Obligation Bonds, Series 2007, 0.000%, 8/01/32  –  FGIC Insured   No Opt. Call AA- 1,498,825
9,740   Huntington Park Redevelopment Agency, California, Single Family Residential Mortgage Revenue Refunding Bonds, Series 1986A, 8.000%, 12/01/19 (ETM)   No Opt. Call AA+ (4) 11,328,107
5,000   Kern Community College District, California, General Obligation Bonds, Safety, Repair & Improvement, Election 2002 Series 2006, 0.000%, 11/01/24  –  AGM Insured   No Opt. Call AA 4,316,750
1,045   Lake Tahoe Unified School District, El Dorado County, California, General Obligation Bonds, Series 2001B, 0.000%, 8/01/31  –  NPFG Insured   No Opt. Call A- 645,570
90   Los Angeles Department of Airports, California, Revenue Bonds, Los Angeles International Airport, Subordinate Lien Series 2016A, 5.000%, 5/15/42 (Alternative Minimum Tax)   5/26 at 100.00 A1 103,138
    Los Angeles Department of Airports, California, Revenue Bonds, Los Angeles International Airport, Subordinate Lien Series 2016B:        
2,000   5.000%, 5/15/41 (Alternative Minimum Tax)   5/26 at 100.00 A1 2,293,620
20,015   5.000%, 5/15/46 (Alternative Minimum Tax)   5/26 at 100.00 A1 22,870,540
2,665   Los Angeles Department of Water and Power, California, Power System Revenue Bonds, Series 2014B, 5.000%, 7/01/43   1/24 at 100.00 AA- 3,063,631
15,000   Los Angeles Department of Water and Power, California, Waterworks Revenue Bonds, Series 2011A, 5.000%, 7/01/41   1/21 at 100.00 Aa2 16,758,000
2,000   Los Rios Community College District, Sacramento County, California, General Obligation Bonds, Series 2009D, 5.375%, 8/01/34 (Pre-refunded 8/01/19)   8/19 at 100.00 AA- (4) 2,178,680
250   Lynwood Redevelopment Agency, California, Project A Revenue Bonds, Subordinate Lien Series 2011A, 7.000%, 9/01/31   9/21 at 100.00 A- 299,860
500   Madera County, California, Certificates of Participation, Children's Hospital Central California, Series 2010, 5.375%, 3/15/36   3/20 at 100.00 A1 540,220
6,215   Martinez Unified School District, Contra Costa County, California, General Obligation Bonds, Series 2011, 5.875%, 8/01/31   8/24 at 100.00 AA 7,762,038
5,955   Mount San Antonio Community College District, Los Angeles County, California, General Obligation Bonds, Election of 2008, Series 2013A, 0.000%, 8/01/43 (7)   8/35 at 100.00 AA 4,858,446
2,700   M-S-R Energy Authority, California, Gas Revenue Bonds, Citigroup Prepay Contracts, Series 2009A, 7.000%, 11/01/34   No Opt. Call BBB+ 3,867,453
2,200   M-S-R Energy Authority, California, Gas Revenue Bonds, Citigroup Prepay Contracts, Series 2009C, 6.500%, 11/01/39   No Opt. Call BBB+ 3,145,230
580   Natomas Union School District, Sacramento County, California, General Obligation Refunding Bonds, Series 1999, 5.950%, 9/01/21  –  NPFG Insured   No Opt. Call A3 625,205


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
$ 15,770   Ontario Redevelopment Financing Authority, San Bernardino County, California, Revenue Bonds, Redevelopment Project 1, Refunding Series 1995, 7.400%, 8/01/25  –  NPFG Insured   No Opt. Call A3 $18,978,406
3,615   Palomar Pomerado Health Care District, California, Certificates of Participation, Series 2009, 6.750%, 11/01/39 (Pre-refunded 11/01/19)   11/19 at 100.00 Ba1 (4) 4,085,348
1,410   Palomar Pomerado Health Care District, California, Certificates of Participation, Series 2010, 5.250%, 11/01/21   11/20 at 100.00 Ba1 1,491,456
1,365   Palomar Pomerado Health, California, General Obligation Bonds, Capital Appreciation, Election of 2004, Series 2007A, 0.000%, 8/01/21  –  NPFG Insured   No Opt. Call A 1,274,787
2,000   Pasadena, California, Certificates of Participation, Refunding Series 2008C, 5.000%, 2/01/33 (Pre-refunded 2/01/18)   2/18 at 100.00 AA (4) 2,042,200
13,145   Perris, California, GNMA Mortgage-Backed Securities Program Single Family Mortgage Revenue Bonds, Series 1988B, 8.200%, 9/01/23 (Alternative Minimum Tax) (ETM)   No Opt. Call AA+ (4) 17,906,513
2,500   Petaluma, Sonoma County, California, Wastewater Revenue Bonds, Refunding Series 2011, 5.500%, 5/01/32 (Pre-refunded 5/01/21)   5/21 at 100.00 A1 (4) 2,906,500
6,000   Placentia-Yorba Linda Unified School District, Orange County, California, Certificates of Participation, Series 2006, 0.000%, 10/01/34  –  FGIC Insured (ETM)   No Opt. Call A2 (4) 3,799,020
9,900   Pomona, California, GNMA/FNMA Collateralized Securities Program Single Family Mortgage Revenue Bonds, Series 1990A, 7.600%, 5/01/23 (ETM)   No Opt. Call AA+ (4) 11,800,899
2,000   Poway Unified School District, San Diego County, California, General Obligation Bonds, School Facilities Improvement District 2007-1, Series 2011A, 0.000%, 8/01/41   No Opt. Call AA- 792,240
5,000   Rialto Unified School District, San Bernardino County, California, General Obligation Bonds, Series 2011A, 0.000%, 8/01/41  –  AGM Insured (7)   8/36 at 100.00 A1 4,733,700
5,000   Riverside County Asset Leasing Corporation, California, Leasehold Revenue Bonds, Riverside County Hospital Project, Series 1997, 0.000%, 6/01/25  –  NPFG Insured   No Opt. Call A 4,129,100
4,615   Riverside County Redevelopment Agency, California, Tax Allocation Bonds, Jurupa Valley Project Area, Series 2011B, 0.000%, 10/01/38   No Opt. Call A 2,024,924
330   Riverside County Transportation Commission, California, Toll Revenue Senior Lien Bonds, Series 2013A, 5.750%, 6/01/48   6/23 at 100.00 BBB- 373,930
9,900   San Francisco Airports Commission, California, Revenue Bonds, San Francisco International Airport, Second Series 2016B, 5.000%, 5/01/46 (Alternative Minimum Tax)   5/26 at 100.00 A+ 11,254,221
660   San Francisco Redevelopment Finance Authority, California, Tax Allocation Revenue Bonds, Mission Bay North Redevelopment Project, Series 2009C, 6.500%, 8/01/39 (Pre-refunded 8/01/19)   8/19 at 100.00 A- (4) 733,234
2,000   San Francisco, California, Community Facilities District 6, Mission Bay South Public Improvements, Special Tax Refunding Bonds, Series 2013C, 0.000%, 8/01/43   8/22 at 29.31 N/R 488,760
7,660   San Joaquin Hills Transportation Corridor Agency, Orange County, California, Senior Lien Toll Road Revenue Bonds, Series 1993, 0.000%, 1/01/24 (ETM)   No Opt. Call AA+ (4) 6,871,556
2,000   San Joaquin Hills Transportation Corridor Agency, Orange County, California, Toll Road Revenue Bonds, Refunding Junior Lien Series 2014B, 5.250%, 1/15/44   1/25 at 100.00 BBB- 2,183,460
    San Joaquin Hills Transportation Corridor Agency, Orange County, California, Toll Road Revenue Bonds, Refunding Senior Lien Series 2014A:        
15,350   5.000%, 1/15/44   1/25 at 100.00 BBB 16,996,748
25,840   5.000%, 1/15/50   1/25 at 100.00 BBB 28,372,578
    San Jose, California, Airport Revenue Bonds, Refunding Series 2017A:        
5,000   5.000%, 3/01/41 (Alternative Minimum Tax)   3/27 at 100.00 A- 5,766,600
5,000   5.000%, 3/01/47 (Alternative Minimum Tax)   3/27 at 100.00 A- 5,735,400


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    California (continued)        
$ 6,660   San Ysidro School District, San Diego County, California, General Obligation Bonds, Refunding Series 2015, 0.000%, 8/01/43   No Opt. Call A1 $1,962,835
880   Santee Community Development Commission, California, Santee Redevelopment Project Tax Allocation Bonds, Series 2011A, 7.000%, 8/01/31 (Pre-refunded 2/01/21)   2/21 at 100.00 A (4) 1,059,291
2,460   Santee School District, San Diego County, California, General Obligation Bonds, Capital Appreciation, Election 2006, Series 2008D, 0.000%, 8/01/33  –  AGC Insured   No Opt. Call AA 1,398,731
5,000   Solano Community College District, Solano and Yolo Counties, California, General Obligation Bonds, Election 2012 Series 2013A, 5.000%, 8/01/43   8/23 at 100.00 Aa3 5,760,150
1,145   Southern Kern Unified School District, Kern County, California, General Obligation Bonds, Series 2006C, 0.000%, 11/01/30  –  AGM Insured   No Opt. Call A2 735,033
1,175   Southern Kern Unified School District, Kern County, California, General Obligation Bonds, Series 2010B, 0.000%, 11/01/35  –  AGM Insured   No Opt. Call A1 599,661
    Union City Community Redevelopment Agency, California, Tax Allocation Revenue Bonds, Redevelopment Project, Subordinate Lien Series 2011:        
1,000   6.375%, 12/01/23   12/21 at 100.00 A+ 1,221,330
1,000   6.500%, 12/01/24   12/21 at 100.00 A+ 1,226,600
1,000   6.625%, 12/01/25   12/21 at 100.00 A+ 1,231,640
1,325   6.750%, 12/01/26   12/21 at 100.00 A+ 1,638,588
75   Ventura County Area Housing Authority, California, Multifamily Revenue Bonds, Mira Vista Senior Apartments Project, Series 2006A, 5.000%, 12/01/22  –  AMBAC Insured (Alternative Minimum Tax)   10/17 at 100.00 N/R 75,084
2,410   Victor Elementary School District, San Bernardino County, California, General Obligation Bonds, Series 2002A, 0.000%, 8/01/26  –  FGIC Insured   No Opt. Call A+ 1,938,146
2,000   West Contra Costa Unified School District, Contra Costa County, California, General Obligation Bonds, Election 2010 Series 2011A, 5.000%, 8/01/41   8/21 at 100.00 A+ 2,251,500
3,750   Wiseburn School District, Los Angeles County, California, General Obligation Bonds, Series 2011B, 0.000%, 8/01/36  –  AGM Insured (7)   8/31 at 100.00 Aa3 3,184,463
4,000   Yuba Community College District, California, General Obligation Bonds, Election 2006 Series 2011C, 5.250%, 8/01/47   8/21 at 100.00 Aa2 4,541,480
519,565   Total California       533,495,738
    Colorado – 8.1% (5.3% of Total Investments)        
1,125   Antelope Heights Metropolitan District, Colorado, Limited Tax General Obligation Bonds, Series 2007, 5.000%, 12/01/37  –  RAAI Insured   12/17 at 100.00 A3 1,126,316
3,000   Anthem West Metropolitan District, Colorado, General Obligation Bonds, Refunding Series 2015, 5.000%, 12/01/35  –  BAM Insured   12/25 at 100.00 A3 3,365,310
4,195   Boulder Larimer & Weld Counties School District RE-1J Saint Vrain Valley, Colorado, General Obligation Bonds, Series 2016C, 4.000%, 12/15/34   12/26 at 100.00 AA 4,569,404
1,000   Brighton Crossing Metropolitan District 4, Colorado, General Obligation Bonds, Limited Tax Convertible to Unlimited Tax, Refunding Series 2013, 7.000%, 12/01/23   7/18 at 100.00 N/R 1,005,000
1,775   Centerra Metropolitan District 1, Loveland, Colorado, Special Revenue Bonds, Refunding & Improvement Series 2017, 5.000%, 12/01/29   12/22 at 103.00 N/R 1,919,254
2,945   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Community Leadership Academy, Inc. Second Campus Project, Series 2013, 7.350%, 8/01/43   8/23 at 100.00 BB 3,416,966
1,715   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Flagstaff Academy Project, Refunding Series 2016, 3.625%, 8/01/46   8/26 at 100.00 A 1,652,300


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Colorado (continued)        
$ 500   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Liberty Common Charter School, Series 2014A, 5.000%, 1/15/44   1/24 at 100.00 A $540,740
1,000   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Peak-to-Peak Charter School, Refunding Series 2014, 5.000%, 8/15/30   8/24 at 100.00 A 1,112,230
3,915   Colorado Educational and Cultural Facilities Authority, Charter School Revenue Bonds, Weld County School District 6 - Frontier Academy, Refunding & Improvement Series 2016, 3.250%, 6/01/46   6/26 at 100.00 A 3,545,346
1,250   Colorado Educational and Cultural Facilities Authority, Revenue Bonds, University Corporation for Atmospheric Research Project, Refunding Series 2012A, 4.500%, 9/01/22   No Opt. Call A+ 1,429,012
545   Colorado Educational and Cultural Facilities Authority, Revenue Bonds, University Corporation for Atmospheric Research Project, Refunding Series 2017, 3.625%, 9/01/31   9/27 at 100.00 A2 562,091
    Colorado Educational and Cultural Facilities Authority, Revenue Bonds, University of Denver, Series 2017A:        
1,200   4.000%, 3/01/36   3/27 at 100.00 A1 1,283,268
1,600   4.000%, 3/01/37   3/27 at 100.00 A1 1,708,304
1,465   Colorado Health Facilities Authority, Colorado, Revenue Bonds, American Baptist Homes Project, Series 2009A, 7.750%, 8/01/39   8/19 at 100.00 N/R 1,533,401
6,910   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Catholic Health Initiatives, Series 2009A, 5.500%, 7/01/34   7/19 at 100.00 BBB+ 7,183,360
2,300   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Catholic Health Initiatives, Series 2011A, 5.000%, 2/01/41   2/21 at 100.00 BBB+ 2,373,669
    Colorado Health Facilities Authority, Colorado, Revenue Bonds, Catholic Health Initiatives, Series 2013A:        
3,020   5.250%, 1/01/40   1/23 at 100.00 BBB+ 3,205,126
4,890   5.250%, 1/01/45   1/23 at 100.00 BBB+ 5,172,691
4,600   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Christian Living Neighborhoods Project, Refunding Series 2016, 5.000%, 1/01/37   1/24 at 102.00 N/R 4,845,134
220   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Evangelical Lutheran Good Samaritan Society Project, Series 2013, 5.625%, 6/01/43   6/23 at 100.00 BBB 236,883
    Colorado Health Facilities Authority, Colorado, Revenue Bonds, Evangelical Lutheran Good Samaritan Society Project, Series 2013A:        
2,670   5.000%, 6/01/28   6/25 at 100.00 BBB 2,985,033
2,395   5.000%, 6/01/40   6/25 at 100.00 BBB 2,564,542
665   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Frasier Meadows Project, Refunding & Improvement Series 2017A, 5.250%, 5/15/47   5/27 at 100.00 BB+ 704,794
2,240   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Poudre Valley Health System, Series 2005B, 5.250%, 3/01/36  –  AGM Insured   9/18 at 102.00 Aa3 2,354,957
1,150   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Poudre Valley Health System, Series 2005C, 5.250%, 3/01/40  –  AGM Insured   9/18 at 102.00 Aa3 1,207,995
9,000   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Sisters of Charity of Leavenworth Health Services Corporation, Series 2010A, 5.000%, 1/01/40   1/20 at 100.00 AA- 9,624,960
625   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Total Long-Term Care National Obligated Group Project, Series 2010A, 6.000%, 11/15/30 (Pre-refunded 11/15/20)   11/20 at 100.00 N/R (4) 723,150
735   Colorado Health Facilities Authority, Colorado, Revenue Bonds, Valley View Hospital Association, Series 2008, 5.500%, 5/15/28   5/18 at 100.00 A- 756,036


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Colorado (continued)        
$ 1,545   Colorado Health Facilities Authority, Revenue Bonds, Evangelical Lutheran Good Samaritan Society, Series 2005, 5.000%, 6/01/29   10/17 at 100.00 BBB $1,548,399
1,075   Colorado High Performance Transportation Enterprise, C-470 Express Lanes Revenue Bonds, Senior Lien Series 2017, 5.000%, 12/31/47   12/24 at 100.00 BBB 1,189,488
1,000   Colorado Housing and Finance Authority, Solid Waste Disposal Revenue Bonds, Waste Management Inc. Project, Series 2004, 5.700%, 7/01/18 (Alternative Minimum Tax)   No Opt. Call A- 1,041,270
2,000   Colorado Mesa University, Colorado, Enterprise Revenue Bonds, Series 2012B, 4.250%, 5/15/37   5/21 at 100.00 Aa2 2,093,580
3,000   Commerce City, Colorado, Sales and Use Tax Revenue Bonds, Series 2014, 5.000%, 8/01/44  –  AGM Insured   8/24 at 100.00 A2 3,363,240
7,250   Commerce City, Colorado, Sales and Use Tax Revenue Bonds, Series 2016, 5.000%, 8/01/46  –  AGM Insured   8/26 at 100.00 A2 8,266,595
2,000   Denver City and County, Colorado, Airport System Revenue Bonds, Series 2012B, 5.000%, 11/15/32   11/22 at 100.00 A+ 2,283,740
1,000   Denver City and County, Colorado, Airport System Revenue Bonds, Subordinate Lien Series 2013A, 5.250%, 11/15/43 (Alternative Minimum Tax)   11/23 at 100.00 A 1,110,180
4,515   Denver City and County, Colorado, Airport System Revenue Bonds, Subordinate Lien Series 2013B, 5.000%, 11/15/43   11/23 at 100.00 A 5,049,395
1,820   Denver City and County, Colorado, Dedicated Tax Revenue Bonds, Refunding & Improvement Series 2016A, 4.000%, 8/01/46   8/26 at 100.00 AA- 1,914,877
    Denver Convention Center Hotel Authority, Colorado, Revenue Bonds, Convention Center Hotel, Refunding Senior Lien Series 2016:        
2,955   5.000%, 12/01/28   12/26 at 100.00 BBB- 3,469,672
2,000   5.000%, 12/01/29   12/26 at 100.00 BBB- 2,332,440
2,635   5.000%, 12/01/35   12/26 at 100.00 BBB- 2,997,866
1,605   5.000%, 12/01/40   12/26 at 100.00 BBB- 1,810,889
    E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Capital Appreciation Series 2010A:        
385   0.000%, 9/01/35   No Opt. Call BBB+ 187,195
150   0.000%, 9/01/37   No Opt. Call BBB+ 66,158
75   0.000%, 9/01/38   No Opt. Call BBB+ 31,442
20   0.000%, 9/01/39   No Opt. Call BBB+ 8,011
110   0.000%, 9/01/41   No Opt. Call BBB+ 40,083
    E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 1997B:        
1,420   0.000%, 9/01/23  –  NPFG Insured   No Opt. Call BBB+ 1,237,303
18,380   0.000%, 9/01/25  –  NPFG Insured   No Opt. Call BBB+ 14,817,221
    E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2000B:        
1,045   0.000%, 9/01/29  –  NPFG Insured   No Opt. Call BBB+ 707,277
2,175   0.000%, 9/01/30  –  NPFG Insured   No Opt. Call BBB+ 1,402,244
25,050   0.000%, 9/01/31  –  NPFG Insured   No Opt. Call BBB+ 15,366,922
23,305   0.000%, 9/01/32  –  NPFG Insured   No Opt. Call BBB+ 13,605,925
100   0.000%, 9/01/33  –  NPFG Insured   No Opt. Call BBB+ 55,892
12,500   E-470 Public Highway Authority, Colorado, Senior Revenue Bonds, Series 2006A, 0.000%, 9/01/38  –  NPFG Insured   9/26 at 54.77 BBB+ 4,794,875


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Colorado (continued)        
    E-470 Public Highway Authority, Colorado, Toll Revenue Bonds, Series 2004A:        
$ 385   0.000%, 9/01/28  –  NPFG Insured   No Opt. Call BBB+ $272,376
60,000   0.000%, 3/01/36  –  NPFG Insured   No Opt. Call BBB+ 29,972,400
    E-470 Public Highway Authority, Colorado, Toll Revenue Bonds, Series 2004B:        
345   0.000%, 9/01/28  –  NPFG Insured   9/20 at 63.98 BBB+ 208,076
13,000   0.000%, 9/01/34  –  NPFG Insured   9/20 at 45.40 BBB+ 5,339,100
14,500   0.000%, 3/01/36  –  NPFG Insured   9/20 at 41.72 BBB+ 5,414,445
500   Eagle County Air Terminal Corporation, Colorado, Airport Terminal Project Revenue Bonds, Refunding Series 2011A, 5.500%, 5/01/22 (Alternative Minimum Tax)   5/21 at 100.00 Baa2 534,140
5,000   Ebert Metropolitan District, Colorado, Limited Tax General Obligation Bonds, Series 2007, 5.350%, 12/01/37 (Pre-refunded 12/01/17)  –  RAAI Insured   12/17 at 100.00 A3 (4) 5,074,800
1,860   Metropolitan State University of Denver, Colorado, Institutional Enterprise Revenue Bonds, Aerospace and Engineering Sciences Building Project, Series 2016, 4.000%, 12/01/40   12/25 at 100.00 Aa2 1,949,280
    Park 70 Metropolitan District, City of Aurora, Colorado, General Obligation Refunding and Improvement Bonds, Series 2016:        
1,565   5.000%, 12/01/36   12/26 at 100.00 Baa3 1,707,681
2,100   5.000%, 12/01/46   12/26 at 100.00 Baa3 2,268,924
3,000   Park Creek Metropolitan District, Colorado, Senior Limited Property Tax Supported Revenue Bonds, Refunding Series 2009, 6.250%, 12/01/30 (Pre-refunded 12/01/19)  –  AGC Insured   12/19 at 100.00 AA (4) 3,359,580
6,705   Park Creek Metropolitan District, Colorado, Senior Limited Property Tax Supported Revenue Bonds, Refunding Series 2015A, 5.000%, 12/01/45   12/25 at 100.00 BBB 7,302,281
5,715   Park Creek Metropolitan District, Colorado, Senior Limited Property Tax Supported Revenue Refunding Bonds, Series 2011, 6.125%, 12/01/41 (Pre-refunded 12/01/20)  –  AGM Insured   12/20 at 100.00 A2 (4) 6,657,746
700   Public Authority for Colorado Energy, Natural Gas Purchase Revenue Bonds, Colorado Springs Utilities, Series 2008, 6.500%, 11/15/38   No Opt. Call BBB+ 996,079
    Regional Transportation District, Colorado, Denver Transit Partners Eagle P3 Project Private Activity Bonds, Series 2010:        
2,500   6.500%, 1/15/30   7/20 at 100.00 Baa3 2,800,225
3,115   6.000%, 1/15/34   7/20 at 100.00 Baa3 3,442,760
2,615   6.000%, 1/15/41   7/20 at 100.00 Baa3 2,883,194
1,000   Sierra Ridge Metropolitan District 2, Douglas County, Colorado, General Obligation Bonds, Limited Tax Series 2016A, 5.500%, 12/01/46   12/21 at 103.00 N/R 1,022,610
    Traditions Metropolitan District 2, Colorado, Limited Tax General Obligation Bonds, Refunding Series 2016:        
1,050   5.000%, 12/01/32  –  BAM Insured   12/26 at 100.00 Baa2 1,203,689
1,000   4.125%, 12/01/37  –  BAM Insured   12/26 at 100.00 Baa2 1,053,030
2,000   Vista Ridge Metropolitan District, In the Town of Erie, Weld County, Colorado, General Obligation Refunding Bonds, Series 2016A, 4.000%, 12/01/36  –  BAM Insured   12/26 at 100.00 Baa1 2,068,480


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Colorado (continued)        
$ 1,775   Waterview I Metropolitan District, El Paso County, Colorado, Limited Tax General Obligation Bonds, Series 2016, 5.000%, 12/01/41   12/26 at 100.00 A- $ 2,013,329
318,195   Total Colorado       251,043,676
    Connecticut – 0.4% (0.3% of Total Investments)        
3,430   Connecticut Health and Educational Facilities Authority, Revenue Bonds, Sacred Heart University, Series 2012H, 5.000%, 7/01/24  –  AGM Insured   7/22 at 100.00 A2 3,888,042
    Connecticut Municipal Electric Energy Cooperative, Power Supply System Revenue Bonds, Tender Option Bond Trust 2016-XG0059:        
1,295   14.688%, 1/01/32 (IF) (5)   1/23 at 100.00 A+ 1,941,037
190   14.561%, 1/01/38 (IF) (5)   1/23 at 100.00 A+ 285,492
2,500   Harbor Point Infrastructure Improvement District, Connecticut, Special Obligation Revenue Bonds, Harbor Point Project, Series 2010A, 7.875%, 4/01/39   4/20 at 100.00 N/R 2,782,050
3,565   Hartford County Metropolitan District, Connecticut, Clean Water Project Revenue Bonds, Series 2013A, 4.000%, 4/01/39   4/22 at 100.00 AA 3,685,247
4,479   Mashantucket Western Pequot Tribe, Connecticut, Special Revenue Bonds, Subordinate Series 2013A, 0.240%, 7/01/31 , PIK, (8)   No Opt. Call N/R 172,018
15,459   Total Connecticut       12,753,886
    Delaware – 0.3% (0.2% of Total Investments)        
7,255   Delaware Transportation Authority, Revenue Bonds, US 301 Project, Series 2015, 5.000%, 6/01/55   6/25 at 100.00 A1 8,118,490
    District of Columbia – 2.5% (1.6% of Total Investments)        
1,380   District of Columbia Housing Finance Agency, GNMA Collateralized Single Family Mortgage Revenue Bonds, Series 1988E-4, 6.375%, 6/01/26 (Alternative Minimum Tax)   12/17 at 100.00 AA+ 1,383,602
5,140   District of Columbia Tobacco Settlement Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2001, 6.500%, 5/15/33   No Opt. Call BBB 5,766,617
21,000   District of Columbia Tobacco Settlement Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2006A, 0.000%, 6/15/46   10/17 at 17.13 N/R 2,983,050
23,745   District of Columbia Water and Sewer Authority, Public Utility Revenue Bonds, Series 1998, 5.500%, 10/01/23  –  AGM Insured (UB)   No Opt. Call AA 27,701,155
    District of Columbia, General Obligation Bonds, Series 1998B:        
5,000   6.000%, 6/01/19  –  NPFG Insured   No Opt. Call AA 5,452,950
9,505   6.000%, 6/01/20  –  NPFG Insured   No Opt. Call AA 10,795,779
2,185   Metropolitan Washington D.C. Airports Authority, Airport System Revenue Bonds, District of Columbia, Refunding Series 2017, 5.000%, 10/01/47 (Alternative Minimum Tax)   10/27 at 100.00 AA- 2,519,829
2,740   Metropolitan Washington D.C. Airports Authority, District of Columbia, Airport System Revenue Bonds, Refunding Series 2017, 5.000%, 10/01/42 (Alternative Minimum Tax)   10/27 at 100.00 AA- 3,177,934
16,400   Washington Convention Center Authority, District of Columbia, Dedicated Tax Revenue Bonds, Senior Lien Refunding Series 2007A, 4.500%, 10/01/30  –  AMBAC Insured   10/17 at 100.00 AA+ 16,440,344
87,095   Total District of Columbia       76,221,260
    Florida – 8.6% (5.6% of Total Investments)        
1,480   Atlantic Beach, Florida, Healthcare Facilities Revenue Refunding Bonds, Fleet Landing Project, Series 2013A, 5.000%, 11/15/37   11/23 at 100.00 BBB 1,600,798


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Florida (continued)        
    Bay County, Florida, Educational Facilities Revenue Refunding Bonds, Bay Haven Charter Academy, Inc. Project, Series 2013A:        
$ 450   5.000%, 9/01/45   9/23 at 100.00 BBB- $458,959
875   5.000%, 9/01/48   9/23 at 100.00 BBB- 891,494
1,000   Brevard County Health Facilities Authority, Florida, Health Facilities Revenue Bonds, Health First, Inc. Project, Series 2009B, 7.000%, 4/01/39 (Pre-refunded 4/01/19)   4/19 at 100.00 A (4) 1,099,880
7,500   Broward County, Florida, Airport System Revenue Bonds, Series 2015A, 5.000%, 10/01/45 (Alternative Minimum Tax)   10/25 at 100.00 A+ 8,368,950
4,315   Cape Coral, Florida, Water and Sewer Revenue Bonds, Refunding Series 2011, 5.000%, 10/01/41  –  AGM Insured   10/21 at 100.00 A 4,850,621
100   Florida Development Finance Corporation, Educational Facilities Revenue Bonds, Renaissance Charter School, Inc. Projects, Series 2012A, 6.125%, 6/15/43   6/22 at 100.00 N/R 107,394
4,165   Florida Higher Educational Facilities Financing Authority, Revenue Bonds, Nova Southeastern University Project, Refunding Series 2012A, 5.000%, 4/01/32   4/22 at 100.00 Baa1 4,488,371
1,150   Florida Higher Educational Facilities Financing Authority, Revenue Bonds, Nova Southeastern University, Refunding Series 2011, 6.375%, 4/01/31   4/21 at 100.00 Baa1 1,319,855
2,000   Florida Ports Financing Commission, Revenue Bonds, State Transportation Trust Fund-Intermodal Program, Refunding Series 2011B, 5.375%, 10/01/29 (Alternative Minimum Tax)   10/21 at 100.00 Aa3 2,303,980
3,175   Florida State Turnpike Authority, Turnpike Revenue Bonds, Department of Transportation, Series 2010B, 5.000%, 7/01/40   7/20 at 101.00 AA 3,514,122
2,500   Greater Orlando Aviation Authority, Florida, Airport Facilities Revenue Bonds, Refunding Series 2009C, 5.000%, 10/01/34 (Pre-refunded 10/01/19)   10/19 at 100.00 AA- (4) 2,716,025
3,890   Greater Orlando Aviation Authority, Florida, Orlando Airport Facilities Revenue Bonds, Series 2016A, 5.000%, 10/01/40 (Alternative Minimum Tax)   10/26 at 100.00 AA- 4,457,279
6,020   Hillsborough County Aviation Authority, Florida, Revenue Bonds, Tampa International Airport, Senior Lien Series 2015A, 5.000%, 10/01/44 (Alternative Minimum Tax)   10/24 at 100.00 A+ 6,678,287
10,305   Hillsborough County Aviation Authority, Florida, Revenue Bonds, Tampa International Airport, Series 2015A, 5.000%, 10/01/44   10/24 at 100.00 A- 11,417,940
2,290   Hillsborough County Aviation Authority, Florida, Revenue Bonds, Tampa International Airport, Subordinate Lien Series 2015B, 5.000%, 10/01/40   10/24 at 100.00 A+ 2,593,539
8,000   JEA, Florida, Water and Sewer System Revenue Bonds, Series 2010D, 5.000%, 10/01/39   4/20 at 100.00 Aa2 8,718,640
5,075   Lakeland, Florida, Hospital System Revenue Bonds, Lakeland Regional Health, Series 2015, 5.000%, 11/15/35   11/24 at 100.00 A2 5,720,692
2,605   Marion County Hospital District, Florida, Revenue Bonds, Munroe Regional Medical Center, Refunding and Improvement Series 2007, 5.000%, 10/01/34 (Pre-refunded 10/01/17)   10/17 at 100.00 BBB+ (4) 2,623,261
1,500   Martin County Industrial Development Authority, Florida, Industrial Development Revenue Refunding Bonds, Indiantown Cogeneration LP, Series 2013, 3.950%, 12/15/21 (Alternative Minimum Tax)   6/20 at 100.00 BB+ 1,544,280
9,820   Miami Beach Redevelopment Agency, Florida, Tax Increment Revenue Bonds, City Center/Historic Convention Village, Series 2015A, 5.000%, 2/01/44  –  AGM Insured   2/24 at 100.00 A1 11,080,201
2,000   Miami Health Facilities Authority, Florida, Health Facilities Revenue Bonds, Miami Jewish Health System Inc. Project, Series 2017, 5.125%, 7/01/46   7/27 at 100.00 BBB 2,153,760
2,930   Miami-Dade County Educational Facilities Authority, Florida, Revenue Bonds, University of Miami, Series 2012A, 5.000%, 4/01/42   4/23 at 100.00 A- 3,216,349


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Florida (continued)        
$ 8,070   Miami-Dade County Educational Facilities Authority, Florida, Revenue Bonds, University of Miami, Series 2015A, 5.000%, 4/01/45   4/25 at 100.00 A- $9,059,059
1,500   Miami-Dade County Health Facility Authority, Florida, Hospital Revenue Bonds, Nicklaus Children's Hospital, Refunding Series 2017, 5.000%, 8/01/42   8/27 at 100.00 A+ 1,707,480
13,000   Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport Hub, Series 2007B, 4.500%, 10/01/31 (Pre-refunded 10/01/17)  –  NPFG Insured   10/17 at 100.00 A (4) 13,080,210
1,000   Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Refunding Series 2012A, 5.000%, 10/01/29 (Alternative Minimum Tax)   10/22 at 100.00 A 1,128,320
1,000   Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Refunding Series 2014B, 5.000%, 10/01/37   10/24 at 100.00 A 1,136,010
4,000   Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Series 2009B, 5.500%, 10/01/36 (Pre-refunded 10/01/19)   10/19 at 100.00 A (4) 4,385,680
    Miami-Dade County, Florida, Aviation Revenue Bonds, Miami International Airport, Series 2010B:        
4,000   5.000%, 10/01/28   10/20 at 100.00 A 4,453,640
7,890   5.000%, 10/01/41   10/20 at 100.00 A 8,553,154
5,000   Miami-Dade County, Florida, Aviation Revenue Bonds, Refunding Series 2014A, 5.000%, 10/01/35 (Alternative Minimum Tax)   10/24 at 100.00 A 5,635,200
3,410   Miami-Dade County, Florida, Aviation Revenue Bonds, Refunding Series 2015A, 5.000%, 10/01/38 (Alternative Minimum Tax)   10/25 at 100.00 A 3,870,214
2,865   Miami-Dade County, Florida, Special Obligation Bonds, Refunding Subordinate Series 2012B, 5.000%, 10/01/37   10/22 at 100.00 A2 3,246,446
    Miami-Dade County, Florida, Transit System Sales Surtax Revenue Bonds, Refunding Series 2012:        
2,050   5.000%, 7/01/42  –  AGM Insured   7/22 at 100.00 A1 2,322,219
3,000   5.000%, 7/01/42   7/22 at 100.00 A1 3,398,370
1,000   Miami-Dade County, Florida, Water and Sewer System Revenue Bonds, Series 2010, 5.000%, 10/01/39  –  AGM Insured   10/20 at 100.00 A+ 1,102,840
12,370   Miami-Dade County, Florida, Water and Sewer System Revenue Bonds, Series 2013A, 5.000%, 10/01/42   10/22 at 100.00 A+ 13,856,627
4,000   North Sumter County Utility Dependent District, Florida, Utility Revenue Bonds, Series 2010, 5.375%, 10/01/40   10/20 at 100.00 A2 4,395,000
2,200   Okeechobee County, Florida, Solid Waste Disposal Revenue Bonds, Waste Management Inc., Series 2004A, 1.550%, 7/01/39 (Mandatory Put 7/01/21)   No Opt. Call A- 2,190,848
1,665   Orange County Health Facilities Authority, Florida, Hospital Revenue Bonds, Orlando Health, Inc., Series 2009, 5.125%, 10/01/26   10/19 at 100.00 A 1,804,427
115   Palm Beach County Health Facilities Authority, Florida, Revenue Bonds, Sinai Residences of Boca Raton Project, Series 2014A, 7.250%, 6/01/34   6/22 at 102.00 N/R 135,735
1,300   Palm Beach County Health Facilities Authority, Florida, Revenue Bonds, The Waterford Project, Series 2007, 5.875%, 11/15/37 (Pre-refunded 11/15/17)   11/17 at 100.00 A (4) 1,318,902
4,635   Port Saint Lucie, Florida, Public Service Tax Revenue Bonds, Recovery Zone Facility Bond Series 2014B, 5.000%, 9/01/43   9/24 at 100.00 AA- 5,224,062
    South Miami Health Facilities Authority, Florida, Hospital Revenue, Baptist Health System Obligation Group, Refunding Series 2007:        
22,000   5.000%, 8/15/37   8/17 at 100.00 AA- 22,044,660
11,000   5.000%, 8/15/42   8/17 at 100.00 AA- 11,020,790
20,175   5.000%, 8/15/42 (UB) (5)   10/17 at 100.00 Aa3 20,213,131


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Florida (continued)        
$ 705   Southeast Overtown/Park West Community Redevelopment Agency, Florida, Tax Increment Revenue Bonds, Series 2014A-1, 5.000%, 3/01/30   3/24 at 100.00 BBB+ $770,008
1,500   Sumter County Industrial Development Authority, Florida, Hospital Revenue Bonds, Central Florida Health Alliance Projects, Series 2014A, 5.250%, 7/01/44   1/24 at 100.00 A- 1,652,370
700   Tampa, Florida, Cigarette Tax Allocation Bonds, H. Lee Moffitt Cancer Center Project, Refunding & Capital Improvement Series 2012A, 5.000%, 9/01/29   9/22 at 100.00 A+ 790,468
14,610   Tampa-Hillsborough County Expressway Authority, Florida, Revenue Bonds, Refunding Series 2012B, 5.000%, 7/01/42   7/22 at 100.00 A 16,495,274
65   Tolomato Community Development District, Florida, Special Assessment Bonds, Convertible, Capital Appreciation, Series 2012A-2, 6.610%, 5/01/39   10/17 at 100.00 N/R 65,001
195   Tolomato Community Development District, Florida, Special Assessment Bonds, Convertible, Capital Appreciation, Series 2012A-3, 0.000%, 5/01/40 (7)   5/19 at 100.00 N/R 116,977
85   Tolomato Community Development District, Florida, Special Assessment Bonds, Convertible, Capital Appreciation, Series 2012A-4, 0.000%, 5/01/40 (7)   5/22 at 100.00 N/R 37,778
120   Tolomato Community Development District, Florida, Special Assessment Bonds, Hope Note, Series 2007-3, 6.650%, 5/01/40 (8)   5/18 at 100.00 N/R 1
10   Tolomato Community Development District, Florida, Special Assessment Bonds, Non Performing Parcel Series 2007-1. RMKT, 6.650%, 5/01/40   5/18 at 100.00 N/R 10,055
195   Tolomato Community Development District, Florida, Special Assessment Bonds, Refunding Series 2012A-1, 6.650%, 5/01/40   5/18 at 100.00 N/R 195,049
290   Tolomato Community Development District, Florida, Special Assessment Bonds, Refunding Series 2015-1, 0.000%, 5/01/40 (8)   5/18 at 100.00 N/R 179,501
180   Tolomato Community Development District, Florida, Special Assessment Bonds, Refunding Series 2015-2, 0.000%, 5/01/40 (8)   5/18 at 100.00 N/R 93,726
195   Tolomato Community Development District, Florida, Special Assessment Bonds, Refunding Series 2015-3, 6.610%, 5/01/40 (8)   5/18 at 100.00 N/R 2
1,060   Tolomato Community Development District, Florida, Special Assessment Bonds, Series 2006, 5.400%, 5/01/37   10/17 at 100.00 N/R 1,060,042
6,510   Volusia County Educational Facilities Authority, Florida, Revenue Bonds, Stetson University Inc. Project, Series 2015, 5.000%, 6/01/45   6/25 at 100.00 A- 7,289,638
246,810   Total Florida       265,963,591
    Georgia – 1.7% (1.1% of Total Investments)        
1,820   Atlanta Development Authority, Georgia, Revenue Bonds, New Downtown Atlanta Stadium Project, Senior Lien Series 2015A-1, 5.250%, 7/01/40   7/25 at 100.00 A+ 2,124,067
835   Atlanta, Georgia, Tax Allocation Bonds, Beltline Project Series 2008A. Remarketed, 7.500%, 1/01/31 (Pre-refunded 1/01/19)   1/19 at 100.00 A2 (4) 905,165
    Atlanta, Georgia, Water and Wastewater Revenue Bonds, Refunding Series 2009B:        
525   5.250%, 11/01/34  –  AGM Insured   11/19 at 100.00 A+ 573,935
985   5.250%, 11/01/34 (Pre-refunded 11/01/19)  –  AGM Insured   11/19 at 100.00 Aa2 (4) 1,078,624
    Atlanta, Georgia, Water and Wastewater Revenue Bonds, Refunding Series 2015:        
3,065   5.000%, 11/01/31   5/25 at 100.00 A+ 3,633,741
5,000   5.000%, 11/01/32   5/25 at 100.00 A+ 5,900,600
2,000   Dalton Development Authority, Georgia, Revenue Certificates, Hamilton Health Care System Inc., Series 1996, 5.500%, 8/15/26  –  NPFG Insured   No Opt. Call A3 2,336,660
2,000   Fulton County Development Authority, Georgia, Hospital Revenue Bonds, Wellstar Health System, Inc. Project, Series 2017A, 5.000%, 4/01/42 (WI/DD, Settling 8/03/17)   4/27 at 100.00 A 2,268,600


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Georgia (continued)        
    Gainesville and Hall County Hospital Authority, Georgia, Revenue Anticipation Certificates, Northeast Georgia Health Services Inc., Series 2010A:        
$ 590   5.000%, 2/15/30   2/20 at 100.00 A $632,746
1,910   5.000%, 2/15/30 (Pre-refunded 2/15/20)   2/20 at 100.00 N/R (4) 2,099,529
    Gainesville and Hall County Hospital Authority, Georgia, Revenue Anticipation Certificates, Northeast Georgia Health Services Inc., Series 2010B:        
710   5.250%, 2/15/37   2/20 at 100.00 AA- 761,361
2,290   5.250%, 2/15/37 (Pre-refunded 2/15/20)   2/20 at 100.00 N/R (4) 2,531,549
10,260   Georgia Municipal Electric Authority, Plant Vogtle Units 3 & 4 Project J Bonds, Series 2015A, 5.000%, 7/01/60   7/25 at 100.00 A2 11,288,155
1,000   Main Street Natural Gas Inc., Georgia, Gas Project Revenue Bonds, Series 2006B, 5.000%, 3/15/20   No Opt. Call BBB+ 1,075,180
3,035   Medical Center Hospital Authority, Georgia, Revenue Anticipation Certificates, Columbus Regional Healthcare System, Inc. Project, Series 2008, 6.500%, 8/01/38 (Pre-refunded 8/01/18)  –  AGC Insured   8/18 at 100.00 AA (4) 3,201,895
1,200   Metropolitan Atlanta Rapid Transit Authority, Georgia, Sales Tax Revenue Bonds, Refunding Series 1992P, 6.250%, 7/01/20  –  AMBAC Insured   No Opt. Call Aa1 1,312,320
3,265   Metropolitan Atlanta Rapid Transit Authority, Georgia, Sales Tax Revenue Bonds, Third Indenture, Series 2015B, 5.000%, 7/01/41   7/26 at 100.00 AA- 3,810,027
5,000   Private Colleges and Universities Authority, Georgia, Revenue Bonds, Emory University, Refunding Series 2016A, 5.000%, 10/01/46   10/26 at 100.00 AA 5,833,100
1,220   Private Colleges and Universities Authority, Georgia, Revenue Bonds, Mercer University, Series 2012A, 5.250%, 10/01/27   10/21 at 100.00 Baa2 1,346,331
1,425   Valdosta and Lowndes County Hospital Authority, Georgia, Revenue Certificates, South Georgia Medical Center Project, Series 2011B, 5.000%, 10/01/41   10/21 at 100.00 AA- 1,553,293
48,135   Total Georgia       54,266,878
    Guam – 0.1% (0.1% of Total Investments)        
765   Government of Guam, Business Privilege Tax Bonds, Series 2011A, 5.000%, 1/01/31   1/22 at 100.00 A 810,755
1,770   Guam Government Waterworks Authority, Water and Wastewater System Revenue Bonds, Series 2010, 5.625%, 7/01/40   7/20 at 100.00 BBB- 1,888,307
1,220   Guam Government Waterworks Authority, Water and Wastewater System Revenue Bonds, Series 2013, 5.500%, 7/01/43   7/23 at 100.00 BBB- 1,364,899
3,755   Total Guam       4,063,961
    Hawaii – 1.4% (0.9% of Total Investments)        
13,000   Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Hawaii Pacific Health Obligated Group, Series 2013A, 5.500%, 7/01/43   7/23 at 100.00 A1 14,787,370
6,000   Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Hawaiian Electric Company, Inc. and Subsidiary Projects, Refunding Series 2017B, 4.000%, 3/01/37 (Alternative Minimum Tax)   3/27 at 100.00 Baa2 6,124,020
4,470   Hawaii Department of Budget and Finance, Special Purpose Revenue Bonds, Hawaiian Electric Company, Inc. and Subsidiary Projects, Series 2017A, 3.100%, 5/01/26 (Alternative Minimum Tax)   No Opt. Call Baa2 4,525,383
11,205   Hawaii State, Airport System Revenue Bonds, Series 2015A, 5.000%, 7/01/45 (Alternative Minimum Tax)   7/25 at 100.00 A 12,601,255


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Hawaii (continued)        
$ 5,000   Hawaii State, General Obligation Bonds, Series 2017FK, 4.000%, 5/01/35   5/27 at 100.00 AA $ 5,417,600
39,675   Total Hawaii       43,455,628
    Idaho – 0.6% (0.4% of Total Investments)        
11,205   Idaho Health Facilities Authority, Hospital Revenue Bonds, CHE Trinity Health Group, Series 2017ID, 5.000%, 12/01/46   6/27 at 100.00 AA- 12,833,535
    Idaho Health Facilities Authority, Revenue Bonds, Madison Memorial Hospital Project, Refunding Series 2016:        
1,795   5.000%, 9/01/23   No Opt. Call BB+ 2,000,617
1,000   5.000%, 9/01/29   9/26 at 100.00 BB+ 1,112,120
    Idaho Water Resource Board, Water Resource Loan Program Revenue, Ground Water Rights Mitigation Series 2012A:        
1,155   4.750%, 9/01/26   9/22 at 100.00 A3 1,304,596
310   5.000%, 9/01/32   9/22 at 100.00 A3 346,983
15,465   Total Idaho       17,597,851
    Illinois – 19.7% (12.8% of Total Investments)        
3,000   Bensenville, Illinois, General Obligation Bonds, Series 2011A, 5.000%, 12/15/30  –  AGM Insured   12/21 at 100.00 AA 3,297,900
6,000   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Capital Improvement Revenues, Series 2016, 6.000%, 4/01/46   4/27 at 100.00 A 6,514,920
1,470   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues Series 2011A, 5.000%, 12/01/41   12/21 at 100.00 B3 1,272,065
9,250   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Series 2016A, 7.000%, 12/01/44   12/25 at 100.00 B 9,468,207
2,400   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Series 2016B, 6.500%, 12/01/46   12/26 at 100.00 B 2,376,456
11,295   Chicago Board of Education, Illinois, General Obligation Bonds, Dedicated Revenues, Series 2017A, 7.000%, 12/01/46   12/27 at 100.00 N/R 11,606,855
    Chicago Board of Education, Illinois, Unlimited Tax General Obligation Bonds, Dedicated Tax Revenues, Series 1998B-1:        
10,000   0.000%, 12/01/20  –  FGIC Insured   No Opt. Call B+ 8,903,900
10,130   0.000%, 12/01/24  –  FGIC Insured   No Opt. Call B+ 7,416,679
7,140   0.000%, 12/01/25  –  FGIC Insured   No Opt. Call B+ 4,933,312
4,325   0.000%, 12/01/29  –  FGIC Insured   No Opt. Call B+ 2,376,328
4,235   0.000%, 12/01/31  –  FGIC Insured   No Opt. Call B+ 2,066,976
    Chicago Board of Education, Illinois, Unlimited Tax General Obligation Bonds, Dedicated Tax Revenues, Series 1999A:        
15,000   0.000%, 12/01/21  –  FGIC Insured   No Opt. Call B+ 12,796,050
10,000   0.000%, 12/01/23  –  FGIC Insured   No Opt. Call B+ 7,725,700
8,845   5.500%, 12/01/26  –  FGIC Insured   No Opt. Call B+ 9,909,673
7,900   Chicago Transit Authority, Illinois, Sales Tax Receipts Revenue Bonds, Series 2011, 5.250%, 12/01/40   12/21 at 100.00 A3 8,518,570
2,150   Chicago, Illinois, Certificates of Participation Tax Increment Revenue Notes, Fullerton/Milwaukee Redevelopment Project, Series 2011A, 6.830%, 3/15/24   10/17 at 100.00 Ba3 2,156,674


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
    Chicago, Illinois, FHA/GNMA Multifamily Housing Revenue Bonds, Archer Court Apartments, Series 1999A:        
$ 210   5.500%, 12/20/19 (Alternative Minimum Tax)   10/17 at 100.00 AA- $210,536
1,210   5.600%, 12/20/29 (Alternative Minimum Tax)   10/17 at 100.00 AA- 1,211,900
1,925   5.650%, 12/20/40 (Alternative Minimum Tax)   10/17 at 100.00 AA- 1,927,406
2,245   Chicago, Illinois, General Airport Revenue Bonds, O'Hare International Airport, Senior Lien Series 2015C, 5.000%, 1/01/46 (Alternative Minimum Tax)   1/25 at 100.00 A 2,467,075
    Chicago, Illinois, General Airport Revenue Bonds, O'Hare International Airport, Senior Lien Series 2017D:        
5,500   5.000%, 1/01/42 (Alternative Minimum Tax)   1/27 at 100.00 A 6,192,065
5,500   5.000%, 1/01/47 (Alternative Minimum Tax)   1/27 at 100.00 A 6,163,850
    Chicago, Illinois, General Obligation Bonds, City Colleges, Series 1999:        
4,115   0.000%, 1/01/33  –  FGIC Insured   No Opt. Call BBB- 1,965,694
29,600   0.000%, 1/01/38  –  FGIC Insured   No Opt. Call BBB- 10,973,016
11,675   Chicago, Illinois, General Obligation Bonds, Project & Refunding Series 2017A, 6.000%, 1/01/38   1/27 at 100.00 BBB- 12,547,356
3,880   Chicago, Illinois, General Obligation Bonds, Series 2004A, 5.000%, 1/01/34  –  AGM Insured   10/17 at 100.00 BBB- 3,933,272
22,750   Chicago, Illinois, General Obligation Refunding Bonds, Emergency Telephone System, Series 1999, 5.500%, 1/01/23  –  FGIC Insured   No Opt. Call BBB- 24,900,557
6,280   Chicago, Illinois, Sales Tax Revenue Bonds, Series 2011A, 5.000%, 1/01/41   1/22 at 100.00 Ba1 6,425,759
6,410   Chicago, Illinois, Wastewater Transmission Revenue Bonds, Second Lien Series 2001A, 5.500%, 1/01/30  –  NPFG Insured   No Opt. Call A3 7,566,749
1,500   Chicago, Illinois, Water Revenue Bonds, Senior Lien Series 2001, 5.750%, 11/01/30  –  AMBAC Insured   No Opt. Call Baa2 1,777,305
13,310   Cook County, Illinois, General Obligation Bonds, Refunding Series 2010A, 5.250%, 11/15/33   11/20 at 100.00 A2 13,948,880
    Illinois Educational Facilities Authority, Revenue Bonds, Field Museum of Natural History, Series 2002:        
5,000   4.450%, 11/01/36   11/25 at 102.00 A 5,345,850
700   4.500%, 11/01/36   11/24 at 100.00 A 738,710
2,785   5.500%, 11/01/36   11/23 at 100.00 A 3,097,561
410   Illinois Finance Authority, Charter School Revenue Bonds, Intrinsic Charter Schools Belmont School Project, Series 2015A, 6.000%, 12/01/45   12/25 at 100.00 N/R 418,032
13,955   Illinois Finance Authority, Revenue Bonds, Advocate Health Care Network, Refunding Series 2015, 5.000%, 5/01/45 (UB) (5)   5/25 at 100.00 Aa2 15,575,036
2,000   Illinois Finance Authority, Revenue Bonds, Art Institute of Chicago, Series 2016, 4.000%, 3/01/38   3/26 at 100.00 A1 2,081,820
4,985   Illinois Finance Authority, Revenue Bonds, Centegra Health System, Series 2012, 5.000%, 9/01/32   9/22 at 100.00 BBB- 5,337,489
    Illinois Finance Authority, Revenue Bonds, Centegra Health System, Series 2014A:        
4,750   5.000%, 9/01/39   9/24 at 100.00 BBB- 5,061,457
6,000   5.000%, 9/01/42   9/24 at 100.00 BBB- 6,362,940
4,125   Illinois Finance Authority, Revenue Bonds, Central DuPage Health, Series 2009B, 5.500%, 11/01/39   11/19 at 100.00 Aa2 4,508,831


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
$ 4,000   Illinois Finance Authority, Revenue Bonds, Children's Memorial Hospital, Series 2008A, 5.250%, 8/15/47  –  AGC Insured (UB)   8/18 at 100.00 AA- $4,151,000
2,120   Illinois Finance Authority, Revenue Bonds, Edward Health Services Corporation, Series 2008A, 5.500%, 2/01/40 (Pre-refunded 2/01/18)  –  AMBAC Insured   2/18 at 100.00 A (4) 2,169,396
3,875   Illinois Finance Authority, Revenue Bonds, Elmhurst Memorial Healthcare, Series 2008A, 5.625%, 1/01/37 (Pre-refunded 1/01/18)   1/18 at 100.00 A (4) 3,952,345
    Illinois Finance Authority, Revenue Bonds, Northwest Community Hospital, Refunding Series 2016A:        
11,520   4.000%, 7/01/37   7/26 at 100.00 A2 11,727,475
6,140   4.000%, 7/01/38   7/26 at 100.00 A2 6,241,310
    Illinois Finance Authority, Revenue Bonds, OSF Healthcare System, Refunding Series 2010A:        
280   6.000%, 5/15/39   5/20 at 100.00 A 308,137
615   6.000%, 5/15/39 (Pre-refunded 5/15/20)   5/20 at 100.00 N/R (4) 696,623
1,925   Illinois Finance Authority, Revenue Bonds, OSF Healthcare System, Series 2007A, 5.750%, 11/15/37 (Pre-refunded 11/15/17)   11/17 at 100.00 A (4) 1,952,528
10,745   Illinois Finance Authority, Revenue Bonds, OSF Healthcare System, Series 2015A, 5.000%, 11/15/45   11/25 at 100.00 A 11,814,235
12,125   Illinois Finance Authority, Revenue Bonds, Palos Community Hospital, Series 2010C, 5.125%, 5/15/35   5/20 at 100.00 AA- 12,905,971
2,500   Illinois Finance Authority, Revenue Bonds, Presence Health Network, Series 2016C, 5.000%, 2/15/33   2/27 at 100.00 BBB- 2,719,350
    Illinois Finance Authority, Revenue Bonds, Provena Health, Series 2009A:        
50   7.750%, 8/15/34 (Pre-refunded 8/15/19)   8/19 at 100.00 N/R (4) 56,776
4,995   7.750%, 8/15/34 (Pre-refunded 8/15/19)   8/19 at 100.00 BBB- (4) 5,671,872
    Illinois Finance Authority, Revenue Bonds, Rehabilitation Institute of Chicago, Series 2013A:        
415   5.500%, 7/01/28   7/23 at 100.00 A- 479,001
390   6.000%, 7/01/43   7/23 at 100.00 A- 450,243
    Illinois Finance Authority, Revenue Bonds, Resurrection Health Care Corporation, Refunding Series 2009:        
90   6.125%, 5/15/25 (Pre-refunded 5/15/19)   5/19 at 100.00 N/R (4) 98,149
100   6.125%, 5/15/25 (Pre-refunded 5/15/19)   5/19 at 100.00 N/R (4) 109,110
2,810   6.125%, 5/15/25 (Pre-refunded 5/15/19)   5/19 at 100.00 BBB- (4) 3,065,991
    Illinois Finance Authority, Revenue Bonds, Resurrection Health Care System, Series 1999B:        
65   5.000%, 5/15/19 (Pre-refunded 5/15/18)  –  AGM Insured   5/18 at 100.00 A2 (4) 67,118
1,735   5.000%, 5/15/19 (Pre-refunded 5/15/18)  –  AGM Insured   5/18 at 100.00 A2 (4) 1,790,988
1,000   Illinois Finance Authority, Revenue Bonds, Rush University Medical Center Obligated Group, Refunding Series 2006B, 5.250%, 11/01/35 (Pre-refunded 11/01/18)  –  NPFG Insured   11/18 at 100.00 A (4) 1,054,000
1,120   Illinois Finance Authority, Revenue Bonds, Rush University Medical Center Obligated Group, Series 2009C, 6.625%, 11/01/39 (Pre-refunded 5/01/19)   5/19 at 100.00 Aaa 1,229,480
4,250   Illinois Finance Authority, Revenue Bonds, Rush University Medical Center Obligated Group, Series 2015B, 5.000%, 11/15/39   5/25 at 100.00 A+ 4,708,617


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
    Illinois Finance Authority, Revenue Bonds, Silver Cross Hospital and Medical Centers, Refunding Series 2008A:        
$ 4,000   6.000%, 8/15/23   8/18 at 100.00 BBB+ $4,178,440
5,000   5.500%, 8/15/30   8/18 at 100.00 BBB+ 5,146,500
    Illinois Finance Authority, Revenue Bonds, Silver Cross Hospital and Medical Centers, Refunding Series 2015C:        
560   5.000%, 8/15/35   8/25 at 100.00 Baa1 614,706
3,745   5.000%, 8/15/44   8/25 at 100.00 Baa1 4,013,517
    Illinois Finance Authority, Revenue Bonds, Silver Cross Hospital and Medical Centers, Series 2009:        
2,000   6.875%, 8/15/38 (Pre-refunded 8/15/19)   8/19 at 100.00 N/R (4) 2,234,720
3,000   7.000%, 8/15/44 (Pre-refunded 8/15/19)   8/19 at 100.00 N/R (4) 3,359,310
1,000   Illinois Finance Authority, Revenue Bonds, Southern Illinois Healthcare Enterprises, Inc., Series 2005 Remarketed, 5.250%, 3/01/30  –  AGM Insured   3/20 at 100.00 A2 1,076,220
    Illinois Finance Authority, Revenue Bonds, The University of Chicago Medical Center, Series 2009B:        
470   5.000%, 8/15/26 (Pre-refunded 8/15/20)   8/20 at 100.00 N/R (4) 525,122
930   5.000%, 8/15/26   8/20 at 100.00 AA- 1,013,561
2,500   Illinois Finance Authority, Revenue Bonds, The University of Chicago Medical Center, Series 2011C, 5.500%, 8/15/41 (Pre-refunded 2/15/21) (UB) (5)   2/21 at 100.00 AA- (4) 2,883,600
3,000   Illinois Finance Authority, Revenue Bonds, University of Chicago, Refunding Series 2015A, 5.000%, 10/01/46   10/25 at 100.00 AA- 3,399,390
11,140   Illinois Finance Authority, Revenue Bonds, University of Chicago, Series 2012A, 5.000%, 10/01/51   10/21 at 100.00 AA- 12,073,198
2,000   Illinois Health Facilities Authority, Revenue Bonds, Midwest Care Center I Inc., Series 2001, 5.950%, 2/20/36   8/17 at 100.00 Aa1 2,007,440
1,830   Illinois Sports Facility Authority, State Tax Supported Bonds, Refunding Series 2014, 5.250%, 6/15/32  –  AGM Insured   6/24 at 100.00 BBB- 2,030,531
    Illinois State, General Obligation Bonds, February Series 2014:        
3,500   5.250%, 2/01/30   2/24 at 100.00 BBB- 3,747,205
4,100   5.250%, 2/01/31   2/24 at 100.00 BBB- 4,379,907
3,200   5.250%, 2/01/32   2/24 at 100.00 BBB- 3,405,312
2,000   5.250%, 2/01/33   2/24 at 100.00 BBB- 2,124,800
1,575   5.250%, 2/01/34   2/24 at 100.00 BBB- 1,669,595
2,000   5.000%, 2/01/39   2/24 at 100.00 BBB- 2,051,860
8,250   Illinois State, General Obligation Bonds, January Series 2016, 5.000%, 1/01/32   1/26 at 100.00 BBB- 8,704,575
1,025   Illinois State, General Obligation Bonds, March Series 2012, 5.000%, 3/01/34   3/22 at 100.00 BBB- 1,055,166
450   Illinois State, General Obligation Bonds, May Series 2014, 5.000%, 5/01/39   5/24 at 100.00 BBB- 462,020
1,500   Illinois State, General Obligation Bonds, November Series 2016, 5.000%, 11/01/37   11/26 at 100.00 BBB- 1,556,715
    Illinois State, General Obligation Bonds, October Series 2016:        
3,790   5.000%, 2/01/26   No Opt. Call BBB- 4,185,486
3,510   5.000%, 2/01/28   2/27 at 100.00 BBB- 3,828,357
2,375   Illinois State, General Obligation Bonds, Refunding Series 2012, 5.000%, 8/01/25   8/22 at 100.00 BBB- 2,559,134


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
    Illinois State, General Obligation Bonds, Series 2013:        
$ 2,500   5.250%, 7/01/31   7/23 at 100.00 BBB- $2,651,625
1,520   5.500%, 7/01/38   7/23 at 100.00 BBB- 1,616,383
2,020   Illinois State, Sales Tax Revenue Bonds, Build Illinois Series 2011, 3.750%, 6/15/25   6/21 at 100.00 AA- 2,090,781
1,395   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2013A, 5.000%, 1/01/38   1/23 at 100.00 AA- 1,564,241
4,685   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2015A, 5.000%, 1/01/40   7/25 at 100.00 AA- 5,335,512
4,435   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Senior Lien Series 2015B, 5.000%, 1/01/40   1/26 at 100.00 AA- 5,014,610
1,815   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Tender Option Bond Trust 2015-XF0051, 15.310%, 1/01/38 (IF)   1/23 at 100.00 AA- 2,696,400
1,875   Illinois Toll Highway Authority, Toll Highway Revenue Bonds, Tender Option Bond Trust 2015-XF0052, 15.390%, 1/01/38 (IF)   1/23 at 100.00 Aa3 2,784,900
2,000   Kane & DeKalb Counties Community Unit School District 301, Illinois, General Obligation Bonds, Series 2006, 0.000%, 12/01/21  –  NPFG Insured   No Opt. Call Aa2 1,841,580
3,000   Lombard Public Facilities Corporation, Illinois, First Tier Conference Center and Hotel Revenue Bonds, Series 2005A-1, 7.125%, 1/01/36 (9)   10/17 at 100.00 N/R 1,303,980
    Lombard Public Facilities Corporation, Illinois, Second Tier Conference Center and Hotel Revenue Bonds, Series 2005B:        
850   5.250%, 1/01/25 (10)   10/17 at 100.00 D 247,486
2,750   5.250%, 1/01/30 (10)   10/17 at 100.00 D 800,690
1,510   Macon County School District 61 Decatur, Illinois, General Obligation Bonds, Series 2011A, 5.250%, 1/01/39  –  AGM Insured   1/21 at 100.00 A2 1,636,629
1,525   McCook, Cook County, Illinois, General Obligation Bonds, Series 2008, 5.200%, 12/01/30   12/18 at 100.00 A- 1,592,176
9,000   McHenry County Community Unit School District 200, Woodstock, Illinois, General Obligation Bonds, Series 2006B, 0.000%, 1/15/23  –  FGIC Insured   No Opt. Call Aa2 8,045,730
1,890   Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Bonds, Refunding Series 2015B, 5.000%, 6/15/52   12/25 at 100.00 BB+ 1,907,275
5,000   Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Bonds, Series 2015A, 5.500%, 6/15/53   12/25 at 100.00 BB+ 5,300,550
10,640   Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Refunding Bonds, Series 2010A, 5.500%, 6/15/50   6/20 at 100.00 BB+ 10,887,061
1,050   Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Capital Appreciation Refunding Series 2010B-1, 5.000%, 6/15/50   6/20 at 100.00 BBB- 1,083,212
    Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Refunding Series 1996A:        
6,015   0.000%, 12/15/21  –  NPFG Insured   No Opt. Call BBB- 5,308,899
12,250   0.000%, 12/15/22  –  NPFG Insured   No Opt. Call BBB- 10,447,290
23,575   0.000%, 12/15/23  –  NPFG Insured   No Opt. Call BBB- 19,348,945
10,775   0.000%, 12/15/24  –  NPFG Insured   No Opt. Call BBB- 8,474,861
2,685   Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Refunding Series 2010B-2, 5.000%, 6/15/50   6/20 at 100.00 BB+ 2,695,874


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Illinois (continued)        
    Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Expansion Project, Series 2002A:        
$ 6,765   0.000%, 12/15/23  –  NPFG Insured   No Opt. Call BBB- $5,552,306
5,000   0.000%, 12/15/34  –  NPFG Insured   No Opt. Call BBB- 2,371,550
1,100   0.000%, 12/15/35  –  NPFG Insured   No Opt. Call BBB- 497,123
3,805   0.000%, 6/15/41  –  NPFG Insured   No Opt. Call BBB- 1,309,034
3,000   Metropolitan Pier and Exposition Authority, Illinois, Revenue Bonds, McCormick Place Hospitality Facility, Series 1996A, 7.000%, 7/01/26 (ETM)   No Opt. Call AA+ (4) 3,826,470
    Railsplitter Tobacco Settlement Authority, Illinois, Tobacco Settlement Revenue Bonds, Series 2010:        
1,550   5.250%, 6/01/21   No Opt. Call A 1,768,504
4,000   6.250%, 6/01/24   10/17 at 100.00 A 4,081,400
800   6.000%, 6/01/28   6/21 at 100.00 A- 912,272
    Regional Transportation Authority, Cook, DuPage, Kane, Lake, McHenry and Will Counties, Illinois, General Obligation Bonds, Series 1999:        
22,650   5.750%, 6/01/19  –  AGM Insured   No Opt. Call A2 24,520,663
3,500   5.750%, 6/01/23  –  AGM Insured   No Opt. Call A2 4,186,630
2,395   Southwestern Illinois Development Authority, Local Government Revenue Bonds, Edwardsville Community Unit School District 7 Project, Series 2007, 0.000%, 12/01/22  –  AGM Insured   No Opt. Call AA 2,069,160
    Springfield, Illinois, Electric Revenue Bonds, Senior Lien Series 2015:        
2,250   5.000%, 3/01/29   3/25 at 100.00 A3 2,601,608
3,505   5.000%, 3/01/40  –  AGM Insured   3/25 at 100.00 A2 3,932,996
    University of Illinois, Health Services Facilities System Revenue Bonds, Series 2013:        
1,580   6.000%, 10/01/32   10/23 at 100.00 Baa1 1,849,817
9,625   6.250%, 10/01/38   10/23 at 100.00 Baa1 11,284,927
2,745   6.000%, 10/01/42   10/23 at 100.00 Baa1 3,163,613
    Will County Community High School District 210 Lincoln-Way, Illinois, General Obligation Bonds, Series 2006:        
4,930   0.000%, 1/01/23  –  AGM Insured   No Opt. Call A2 4,018,492
12,775   0.000%, 1/01/24  –  AGM Insured (ETM)   No Opt. Call A2 (4) 11,380,098
2,475   Will County School District 122, New Lenox, Illinois, General Obligation Bonds, Series 2000B, 0.000%, 11/01/18  –  AGM Insured   No Opt. Call A2 2,433,074
634,485   Total Illinois       610,221,940
    Indiana – 3.0% (1.9% of Total Investments)        
6,180   Crown Point Multi-School Building Corporation, Indiana, First Mortgage Bonds, Crown Point Community School Corporation, Series 2000, 0.000%, 1/15/23  –  NPFG Insured   No Opt. Call A3 5,602,912
1,555   Indiana Finance Authority, Educational Facilities Revenue Bonds, Butler University Project, Refunding Series 2012B, 5.000%, 2/01/28   2/22 at 100.00 A- 1,715,942
1,050   Indiana Finance Authority, Educational Facilities Revenue Bonds, Drexel Foundation For Educational Excellence, Inc., Series 2009A, 7.000%, 10/01/39   10/19 at 100.00 B- 1,051,312
2,865   Indiana Finance Authority, Hospital Revenue Bonds, Community Health Network Project, Series 2012A, 5.000%, 5/01/42   5/23 at 100.00 A 3,127,463
1,500   Indiana Finance Authority, Hospital Revenue Bonds, Floyd Memorial Hospital and Health Services Project, Refunding Series 2010, 5.125%, 3/01/30 (Pre-refunded 3/02/20)   3/20 at 100.00 N/R (4) 1,655,460


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Indiana (continued)        
$ 7,480   Indiana Finance Authority, Hospital Revenue Bonds, Indiana University Health Obligation Group, Refunding 2015A, 5.000%, 12/01/40   6/25 at 100.00 AA $8,534,007
    Indiana Finance Authority, Private Activity Bonds, Ohio River Bridges East End Crossing Project, Series 2013A:        
3,015   5.000%, 7/01/44 (Alternative Minimum Tax)   7/23 at 100.00 BBB 3,232,231
6,545   5.000%, 7/01/48 (Alternative Minimum Tax)   7/23 at 100.00 BBB 7,039,998
1,500   Indiana Finance Authority, Private Activity Bonds, Ohio River Bridges East End Crossing Project, Series 2013B, 5.000%, 7/01/40 (Alternative Minimum Tax)   7/23 at 100.00 BBB 1,608,075
4,670   Indiana Finance Authority, Revenue Bonds, Trinity Health Care Group, Refunding Series 2009A, 5.250%, 12/01/38   12/19 at 100.00 AA- 5,046,449
2,500   Indiana Finance Authority, Revenue Bonds, Trinity Health Care Group, Refunding Series 2010B, 5.000%, 12/01/37   12/20 at 100.00 AA- 2,755,925
    Indiana Finance Authority, Tax-Exempt Private Activity Revenue Bonds, I-69 Section 5 Project, Series 2014:        
1,305   5.250%, 9/01/34 (Alternative Minimum Tax)   9/24 at 100.00 CC 1,390,373
3,790   5.250%, 9/01/40 (Alternative Minimum Tax)   9/24 at 100.00 CC 4,000,307
15,900   5.000%, 9/01/46 (Alternative Minimum Tax)   9/24 at 100.00 CC 16,439,328
5,115   Indiana Finance Authority, Wastewater Utility Revenue Bonds, CWA Authority Project, First Lien Green Series 2016A, 5.000%, 10/01/41   10/26 at 100.00 A 5,904,961
2,750   Indiana Finance Authority, Wastewater Utility Revenue Bonds, CWA Authority Project, Series 2011B, 5.000%, 10/01/41   10/21 at 100.00 A3 3,091,357
4,500   Indiana Finance Authority, Wastewater Utility Revenue Bonds, CWA Authority Project, Series 2012A, 4.000%, 10/01/42   10/22 at 100.00 A2 4,638,645
    Indiana Health and Educational Facilities Financing Authority, Revenue Bonds, Sisters of Saint Francis Health Services Inc., Series 2006E:        
475   5.250%, 11/01/25 (Pre-refunded 5/01/18)  –  AGM Insured   5/18 at 100.00 Aa3 (4) 490,556
530   5.250%, 11/01/29 (Pre-refunded 5/01/18)  –  AGM Insured   5/18 at 100.00 Aa3 (4) 547,358
2,225   5.250%, 5/15/41 (Pre-refunded 5/01/18)  –  AGM Insured   5/18 at 100.00 Aa3 (4) 2,297,869
4,375   Indiana Municipal Power Agency Power Supply System Revenue Bonds, Refunding Series 2016A, 5.000%, 1/01/42   7/26 at 100.00 A+ 5,027,312
1,700   Saint Joseph County, Indiana, Educational Facilities Revenue Bonds, University of Notre Dame du Lac Project, Refunding Series 2009, 5.000%, 3/01/36   3/18 at 100.00 Aaa 1,740,035
3,985   Valparaiso, Indiana, Exempt Facilities Revenue Bonds, Pratt Paper LLC Project, Series 2013, 7.000%, 1/01/44 (Alternative Minimum Tax)   1/24 at 100.00 N/R 4,791,644
85,510   Total Indiana       91,729,519
    Iowa – 1.7% (1.1% of Total Investments)        
1,500   Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Alcoa Inc. Project, Series 2012, 4.750%, 8/01/42   8/22 at 100.00 Ba2 1,517,565
    Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Series 2013:        
1,990   5.000%, 12/01/19   No Opt. Call B- 2,034,198
5,645   5.500%, 12/01/22   12/18 at 100.00 B- 5,771,674
1,335   5.250%, 12/01/25   12/23 at 100.00 B- 1,427,088
1,710   Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Series 2016, 5.875%, 12/01/26   6/18 at 105.00 B- 1,788,626


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Iowa (continued)        
$ 3,000   Iowa Student Loan Liquidity Corporation, Student Loan Revenue Bonds, Refunding Series 2009-2, 5.500%, 12/01/25   12/19 at 100.00 A $3,197,880
    Iowa Tobacco Settlement Authority, Asset Backed Settlement Revenue Bonds, Series 2005C:        
24,420   5.500%, 6/01/42   10/17 at 100.00 B2 24,306,691
12,100   5.625%, 6/01/46   10/17 at 100.00 B2 11,961,092
51,700   Total Iowa       52,004,814
    Kansas – 0.4% (0.3% of Total Investments)        
1,240   Johnson and Miami Counties Unified School District 230, Kansas, General Obligation Bonds, Series 2011A, 5.000%, 9/01/26   9/21 at 100.00 Aa3 1,419,552
1,540   Kansas Development Finance Authority, Hospital Revenue Bonds, Adventist Health System/Sunbelt Obligated Group, Series 2009C, 5.500%, 11/15/29   11/19 at 100.00 AA 1,678,738
    Olathe, Kansas, Health Facilities Revenue Bonds, Olathe Medical Center, Series 2008:        
390   5.000%, 9/01/29 (Pre-refunded 9/01/17)   9/17 at 100.00 N/R (4) 391,377
610   5.000%, 9/01/29   9/17 at 100.00 A+ 612,153
2,420   Overland Park Development Corporation, Kansas, First Tier Revenue Bonds, Overland Park Convention Center, Series 2007A, 5.125%, 1/01/22  –  AMBAC Insured   10/17 at 100.00 BB+ 2,421,210
530   Overland Park Transportation Development District, Kansas, Sales Tax Revenue Bonds, Oak Park Mall Project, Series 2010, 5.900%, 4/01/32   4/20 at 100.00 BBB 548,073
40   Sedgwick and Shawnee Counties, Kansas, GNMA Mortgage-Backed Securities Program Single Family Revenue Bonds, Series 1997A-1, 6.950%, 6/01/29 (Alternative Minimum Tax)   No Opt. Call Aaa 41,785
5,000   Wyandotte County/Kansas City Unified Government, Kansas, Utility System Revenue Bonds, Improvement Series 2012B, 5.000%, 9/01/32   9/22 at 100.00 A3 5,624,900
11,770   Total Kansas       12,737,788
    Kentucky – 1.9% (1.2% of Total Investments)        
5,510   Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Baptist Healthcare System Obligated Group, Series 2011, 5.250%, 8/15/46   8/21 at 100.00 Baa2 5,872,282
    Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Owensboro Medical Health System, Series 2010A:        
2,000   6.000%, 6/01/30   6/20 at 100.00 Baa3 2,273,100
5,500   6.500%, 3/01/45   6/20 at 100.00 Baa3 6,327,585
1,000   Kentucky Economic Development Finance Authority, Louisville Arena Project Revenue Bonds, Louisville Arena Authority, Inc., Series 2008-A1, 6.000%, 12/01/33  –  AGC Insured   6/18 at 100.00 A3 1,022,090
2,730   Kentucky Economic Development Finance Authority, Revenue Bonds, Next Generation Kentucky Information Highway Project, Senior Series 2015A, 5.000%, 1/01/45   7/25 at 100.00 Baa2 2,975,509
    Kentucky Municipal Power Agency, Power System Revenue Bonds, Prairie State Project Series 2007A:        
505   5.000%, 9/01/37 (Pre-refunded 9/01/17)  –  NPFG Insured   9/17 at 100.00 A3 (4) 506,773
1,785   5.000%, 9/01/37 (Pre-refunded 9/01/17)  –  NPFG Insured   9/17 at 100.00 A3 (4) 1,791,265
    Kentucky Public Transportation Infrastructure Authority, First Tier Toll Revenue Bonds, Downtown Crossing Project, Convertible Capital Appreciation Series 2013C:        
4,790   0.000%, 7/01/43 (7)   7/31 at 100.00 Baa3 4,147,709
3,655   0.000%, 7/01/46 (7)   7/31 at 100.00 Baa3 3,178,425


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Kentucky (continued)        
    Kentucky Public Transportation Infrastructure Authority, First Tier Toll Revenue Bonds, Downtown Crossing Project, Series 2013A:        
$ 8,360   5.750%, 7/01/49   7/23 at 100.00 Baa3 $9,371,393
585   6.000%, 7/01/53   7/23 at 100.00 Baa3 663,010
9,195   Lexington-Fayette Urban County Government Public Facilities Corporation, Kentucky State Lease Revenue Bonds, Eastern State Hospital Project, Series 2011A, 5.250%, 6/01/30   6/21 at 100.00 A 10,209,300
2,500   Louisville-Jefferson County Metro Government, Kentucky, Revenue Bonds, Bellarmine University Inc Project, Refunding & Improvement Series 2008A, 6.000%, 5/01/38   5/18 at 100.00 Baa3 2,566,700
    Pikeville, Kentucky, Hospital Revenue Bonds, Pikeville Medical Center, Inc. Project, Improvement and Refunding Series 2011:        
5,000   6.250%, 3/01/31   3/21 at 100.00 A3 5,655,250
1,375   6.500%, 3/01/41   3/21 at 100.00 A3 1,551,275
54,490   Total Kentucky       58,111,666
    Louisiana – 2.8% (1.9% of Total Investments)        
5,120   Ascension Parish Industrial development Board, Louisiana, Revenue Bonds, Impala Warehousing (US) LLC Project, Series 2013, 6.000%, 7/01/36   7/23 at 100.00 N/R 5,522,534
2,665   East Baton Rouge Sewerage Commission, Louisiana, Revenue Bonds, Refunding Series 2014B, 5.000%, 2/01/39   2/25 at 100.00 AA- 3,015,821
3,130   Jefferson Sales Tax District, Jefferson Parish, Louisiana, Special Sales Tax Revenue Bonds, Series 2017B, 5.000%, 12/01/42  –  AGM Insured   12/27 at 100.00 A2 3,668,892
1,000   Louisiana Local Government Environmental Facilities & Community Development Authority, Revenue Bonds, Westlake Chemical Corporation Project, Series 2007, 6.750%, 11/01/32   11/17 at 100.00 Baa3 1,011,340
5,200   Louisiana Local Government Environmental Facilities and Community Development Authority, Revenue Bonds, East Baton Rouge Sewerage Commission Projects, Subordinate Lien Series 2014A, 5.000%, 2/01/44   2/24 at 100.00 A+ 5,734,144
1,380   Louisiana Local Government Environmental Facilities and Community Development Authority, Revenue Bonds, Westlake Chemical Corporation Projects, Series 2009A, 6.500%, 8/01/29   8/20 at 100.00 Baa3 1,562,188
8,505   Louisiana Public Facilities Authority, Dock and Wharf Revenue Bonds, Impala Warehousing (US) LLC Project, Series 2013, 6.500%, 7/01/36 (Alternative Minimum Tax)   7/23 at 100.00 N/R 9,426,091
845   Louisiana Public Facilities Authority, Hospital Revenue and Refunding Bonds, Lafayette General Medical Center Project, Series 2016A, 5.000%, 11/01/45   11/25 at 100.00 Baa1 914,324
    Louisiana Public Facilities Authority, Revenue Bonds, Ochsner Clinic Foundation Project, Refunding Series 2017:        
10,000   5.000%, 5/15/42   5/27 at 100.00 A3 11,286,700
5,410   5.000%, 5/15/46   5/27 at 100.00 A3 6,077,432
4,305   Louisiana Public Facilities Authority, Revenue Bonds, Ochsner Clinic Foundation Project, Series 2011, 6.750%, 5/15/41 (Pre-refunded 5/15/21)   5/21 at 100.00 A3 (4) 5,196,307
330   Louisiana Stadium and Exposition District, Revenue Refunding Bonds, Senior Lien Series 2013A, 5.000%, 7/01/36   7/23 at 100.00 A3 365,247
    New Orleans Aviation Board, Louisiana, Revenue Bonds, North Terminal Project, Series 2015B:        
6,235   5.000%, 1/01/40 (Alternative Minimum Tax)   1/25 at 100.00 A- 6,968,423
6,895   5.000%, 1/01/45 (Alternative Minimum Tax)   1/25 at 100.00 A- 7,667,585


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Louisiana (continued)        
$ 3,800   New Orleans Aviation Board, Louisiana, Revenue Bonds, North Terminal Project, Series 2017B, 5.000%, 1/01/48 (Alternative Minimum Tax)   1/27 at 100.00 A- $4,317,484
1,000   New Orleans, Louisiana, General Obligation Bonds, Refunding Series 2012, 5.000%, 12/01/28  –  AGM Insured   12/22 at 100.00 A2 1,137,490
5,350   New Orleans, Louisiana, Sewerage Service Revenue Bonds, Refunding Series 2014, 5.000%, 6/01/44   6/24 at 100.00 A- 5,945,295
1,200   New Orleans, Louisiana, Water Revenue Bonds, Refunding Series 2014, 5.000%, 12/01/44   12/24 at 100.00 A- 1,339,728
485   Saint Charles Parish, Louisiana, Gulf Opportunity Zone Revenue Bonds, Valero Project, Series 2010, 4.000%, 12/01/40 (Mandatory Put 6/01/22)   No Opt. Call Baa2 515,511
5,655   Shreveport, Louisiana, Water and Sewer Revenue Bonds, Refunding Series 2015, 5.000%, 12/01/40   12/25 at 100.00 A- 6,472,034
78,510   Total Louisiana       88,144,570
    Maine – 0.7% (0.4% of Total Investments)        
2,775   Maine Health and Higher Educational Facilities Authority Revenue Bonds, Eastern Maine Medical Center Obligated Group Issue, Series 2013, 5.000%, 7/01/33   7/23 at 100.00 Ba1 2,884,252
    Maine Health and Higher Educational Facilities Authority Revenue Bonds, Eastern Maine Medical Center Obligated Group Issue, Series 2016A:        
3,820   4.000%, 7/01/41   7/26 at 100.00 Ba1 3,448,429
2,800   4.000%, 7/01/46   7/26 at 100.00 Ba1 2,467,556
2,000   Maine Health and Higher Educational Facilities Authority, Revenue Bonds, Bates College, Series 2013, 5.000%, 7/01/43   7/23 at 100.00 A+ 2,245,880
    Maine Health and Higher Educational Facilities Authority, Revenue Bonds, Maine General Medical Center, Series 2011:        
3,000   6.750%, 7/01/36   7/21 at 100.00 Ba2 3,300,780
2,260   6.750%, 7/01/41   7/21 at 100.00 Ba2 2,473,728
1,720   Maine Health and Higher Educational Facilities Authority, Revenue Bonds, Series 2010A, 5.000%, 7/01/40   7/20 at 100.00 A1 1,870,827
    Maine Turnpike Authority, Special Obligation Bonds, Series 2014:        
1,290   5.000%, 7/01/33   7/24 at 100.00 A- 1,465,130
1,020   5.000%, 7/01/34   7/24 at 100.00 A- 1,155,048
20,685   Total Maine       21,311,630
    Maryland – 0.3% (0.2% of Total Investments)        
5,000   Baltimore, Maryland, Revenue Bonds, Wastewater Projects, Series 2014C, 5.000%, 7/01/44   1/25 at 100.00 AA- 5,683,550
450   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Mercy Medical Center, Series 2011, 6.000%, 7/01/25   7/21 at 100.00 BBB 517,851
515   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Patterson Park Public Charter School Issue, Series 2010, 6.000%, 7/01/40   7/19 at 100.00 BB+ 529,677
1,790   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Peninsula Regional Medical Center Issue, Refunding Series 2015, 5.000%, 7/01/39   7/24 at 100.00 A3 1,979,096


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Maryland (continued)        
$ 2,000   Maryland Health and Higher Educational Facilities Authority, Revenue Bonds, Washington County Hospital, Series 2008, 5.750%, 1/01/33 (Pre-refunded 1/01/18)   1/18 at 100.00 BBB (4) $ 2,040,780
9,755   Total Maryland       10,750,954
    Massachusetts – 2.2% (1.4% of Total Investments)        
    Massachusetts Bay Transportation Authority, Assessment Bonds, Series 2008A:        
1,160   5.250%, 7/01/34 (Pre-refunded 7/01/18)   7/18 at 100.00 N/R (4) 1,206,551
2,840   5.250%, 7/01/34 (Pre-refunded 7/01/18)   7/18 at 100.00 AAA 2,953,969
    Massachusetts Department of Transportation, Metropolitan Highway System Revenue Bonds, Refunding Senior Lien Series 2010B:        
4,410   5.000%, 1/01/32   1/20 at 100.00 A3 4,782,601
7,500   5.000%, 1/01/37   1/20 at 100.00 A3 8,087,175
650   Massachusetts Development Finance Agency, Health Care Facility Revenue Bonds, Adventcare Project, Series 2007A, 6.750%, 10/15/37   10/17 at 100.00 N/R 652,853
830   Massachusetts Development Finance Agency, Health Care Facility Revenue Bonds, Adventcare Project, Series 2010, 7.625%, 10/15/37   10/20 at 100.00 N/R 896,832
750   Massachusetts Development Finance Agency, Resource Recovery Revenue Refunding Bonds, Covanta Energy Project, Series 2012C, 5.250%, 11/01/42 (Alternative Minimum Tax)   11/17 at 100.00 BB- 751,695
825   Massachusetts Development Finance Agency, Revenue Bonds, Boston Medical Center Issue, Green Bonds, Series 2015D, 5.000%, 7/01/44   7/25 at 100.00 BBB 903,928
3,500   Massachusetts Development Finance Agency, Revenue Bonds, Boston University, Series 2016BB-1, 5.000%, 10/01/46   10/26 at 100.00 A+ 4,025,455
    Massachusetts Development Finance Agency, Revenue Bonds, Boston University, Tender Option Bond Trust 2016-XG0070:        
930   14.666%, 10/01/48 (IF) (5)   10/23 at 100.00 A1 1,402,607
505   14.747%, 10/01/48 (IF) (5)   10/23 at 100.00 A1 761,949
3,200   Massachusetts Development Finance Agency, Revenue Bonds, Emerson College, Series 2015, 4.500%, 1/01/45   1/25 at 100.00 Baa2 3,296,544
1,220   Massachusetts Development Finance Agency, Revenue Bonds, Loomis Communities, Series 2013A, 5.125%, 1/01/25   1/23 at 100.00 BBB- 1,368,779
2,300   Massachusetts Development Finance Agency, Revenue Bonds, Olin College, Series 2013E, 5.000%, 11/01/43   11/23 at 100.00 A2 2,602,979
2,500   Massachusetts Development Finance Agency, Revenue Bonds, UMass Memorial Health Care, Series 2016I, 4.000%, 7/01/41   7/26 at 100.00 BBB+ 2,545,025
    Massachusetts Development Finance Agency, Revenue Bonds, Western New England University, Series 2015:        
1,145   5.000%, 9/01/40   9/25 at 100.00 BBB 1,267,103
1,280   5.000%, 9/01/45   9/25 at 100.00 BBB 1,409,869
    Massachusetts Health and Educational Facilities Authority, Revenue Bonds, CareGroup Inc., Series 2008E-1 &2:        
620   5.125%, 7/01/33 (Pre-refunded 7/01/18)   7/18 at 100.00 A- (4) 644,174
500   5.125%, 7/01/38 (Pre-refunded 7/01/18)   7/18 at 100.00 A- (4) 519,495
    Massachusetts Health and Educational Facilities Authority, Revenue Bonds, Suffolk University, Refunding Series 2009A:        
3,190   5.750%, 7/01/39   7/19 at 100.00 BBB 3,423,795
6,335   5.750%, 7/01/39 (Pre-refunded 7/01/19)   7/19 at 100.00 N/R (4) 6,905,403


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Massachusetts (continued)        
$ 2,315   Massachusetts Housing Finance Agency, Housing Bonds, Series 2009F, 5.700%, 6/01/40 (Alternative Minimum Tax)   12/18 at 100.00 AA- $2,376,394
700   Massachusetts Port Authority, Special Facilities Revenue Bonds, ConRac Project, Series 2011A, 5.125%, 7/01/41   7/21 at 100.00 A3 761,992
5,930   Massachusetts School Building Authority, Dedicated Sales Tax Revenue Bonds, Senior Series 2013A, 5.000%, 5/15/43   5/23 at 100.00 Aa2 6,784,335
1,100   Massachusetts Turnpike Authority, Metropolitan Highway System Revenue Bonds, Senior Series 1997A, 0.000%, 1/01/24  –  NPFG Insured   No Opt. Call A3 977,405
6,700   Metropolitan Boston Transit Parking Corporation, Massachusetts, Systemwide Senior Lien Parking Revenue Bonds, Series 2011, 5.000%, 7/01/41   7/21 at 100.00 A+ 7,484,369
62,935   Total Massachusetts       68,793,276
    Michigan – 2.6% (1.7% of Total Investments)        
3,535   Detroit Water and Sewerage Department, Michigan, Sewage Disposal System Revenue Bonds, Refunding Senior Lien Series 2012A, 5.250%, 7/01/39   7/22 at 100.00 A- 3,932,723
2,435   Detroit, Michigan, Sewage Disposal System Revenue Bonds, Second Lien Series 2006A, 5.500%, 7/01/36 (Pre-refunded 7/01/18)  –  BHAC Insured   7/18 at 100.00 A- (4) 2,536,661
1,600   Detroit, Michigan, Sewer Disposal System Revenue Bonds, Second Lien, Series 2001E, 5.750%, 7/01/31 (Pre-refunded 7/01/18)  –  BHAC Insured   7/18 at 100.00 AA+ (4) 1,670,448
2,235   Detroit, Michigan, Water Supply System Revenue Bonds, Refunding Second Lien Series 2001C, 4.750%, 7/01/29  –  BHAC Insured   7/18 at 100.00 A- 2,307,615
2,020   Detroit, Michigan, Water Supply System Revenue Bonds, Senior Lien Series 2011A, 5.250%, 7/01/41   7/21 at 100.00 A- 2,195,679
3,665   Lansing Board of Water and Light, Michigan, Utility System Revenue Bonds, Series 2011A, 5.500%, 7/01/41   7/21 at 100.00 AA- 4,183,817
1,500   Michigan Finance Authority, Hospital Revenue Bonds, Sparrow Obligated Group, Series 2012, 5.000%, 11/15/42   11/22 at 100.00 A+ 1,653,360
405   Michigan Finance Authority, Local Government Loan Program Revenue Bonds, Detroit Water & Sewerage Department Water Supply System Local Project, Refunding Senior Loan Series 2014D-1, 5.000%, 7/01/37  –  AGM Insured   7/24 at 100.00 A2 456,459
2,690   Michigan Finance Authority, Local Government Loan Program Revenue Bonds, Detroit Water & Sewerage Department Water Supply System Local Project, Series 2014C-3, 5.000%, 7/01/32  –  AGM Insured   7/24 at 100.00 A2 3,064,260
1,000   Michigan Finance Authority, Local Government Loan Program Revenue Bonds, Detroit Water & Sewerage Department Water Supply System Local Project, Series 2014D-6, 5.000%, 7/01/36  –  NPFG Insured   7/24 at 100.00 A3 1,111,850
    Michigan Finance Authority, Revenue Bonds, Trinity Health Credit Group, Refunding Series 2015:        
2,500   5.000%, 12/01/31   6/22 at 100.00 AA- 2,808,250
3,670   5.000%, 12/01/32   6/22 at 100.00 AA- 4,115,355
2,000   Michigan Finance Authority, State Revolving Fund Revenue Bonds, Clean Water Series 2012, 5.000%, 10/01/31   10/22 at 100.00 AAA 2,320,260
5,000   Michigan Hospital Finance Authority, Revenue Bonds, Ascension Health Senior Credit Group, Refunding and Project Series 2010F-6, 4.000%, 11/15/47   11/26 at 100.00 Aa2 5,180,500
2,500   Michigan State Building Authority, Revenue Bonds, Facilities Program, Refunding Series 2009-I, 5.000%, 10/15/23  –  AGC Insured   10/19 at 100.00 AA- 2,711,075
1,000   Michigan State Building Authority, Revenue Bonds, Facilities Program, Refunding Series 2011-I-A, 5.375%, 10/15/41   10/21 at 100.00 A+ 1,135,410


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Michigan (continued)        
    Michigan State Building Authority, Revenue Bonds, Facilities Program, Refunding Series 2015-I:        
$ 5,000   5.000%, 4/15/28   10/25 at 100.00 A+ $5,907,650
10,000   5.000%, 4/15/34   10/25 at 100.00 A+ 11,425,200
3,495   Michigan State Hospital Finance Authority, Hospital Revenue Bonds, Henry Ford Health System, Refunding Series 2009, 5.750%, 11/15/39 (Pre-refunded 11/15/19)   11/19 at 100.00 A3 (4) 3,868,650
5,200   Michigan State Hospital Finance Authority, Revenue Bonds, Trinity Health Care Group, Series 2009C, 5.000%, 12/01/48   6/22 at 100.00 AA- 5,615,636
1,165   Michigan Strategic Fund, Limited Obligation Revenue Bonds, Michigan House of Representatives Facilities, Series 2008A, 5.250%, 10/15/23 (Pre-refunded 10/15/18)  –  AGC Insured   10/18 at 100.00 AA (4) 1,225,720
5,000   Michigan Tobacco Settlement Finance Authority, Tobacco Settlement Asset-Backed Revenue Bonds, Series 2008A, 6.875%, 6/01/42   6/18 at 100.00 B2 5,076,650
1,150   Royal Oak Hospital Finance Authority, Michigan, Hospital Revenue Bonds, William Beaumont Hospital, Refunding Series 2009V, 8.250%, 9/01/39 (Pre-refunded 9/01/18)   9/18 at 100.00 Aaa 1,240,839
3,000   Wayne County Airport Authority, Michigan, Revenue Bonds, Detroit Metropolitan Wayne County Airport, Series 2012A, 5.000%, 12/01/37   12/22 at 100.00 A- 3,280,410
    Wayne County Airport Authority, Michigan, Revenue Bonds, Detroit Metropolitan Wayne County Airport, Series 2015D:        
950   5.000%, 12/01/40   12/25 at 100.00 A- 1,073,063
1,200   5.000%, 12/01/45   12/25 at 100.00 A- 1,347,984
73,915   Total Michigan       81,445,524
    Minnesota – 1.8% (1.2% of Total Investments)        
310   Baytown Township, Minnesota Charter School Lease Revenue Bonds, Saint Croix Preparatory Academy, Refunding Series 2016A, 4.000%, 8/01/36   8/26 at 100.00 BB+ 285,498
1,000   City of Vergas, Minnesota, Housing and Health Care Revenue Bonds, CDL Homes, LLC Project, Refunding Series 2016, 4.250%, 8/01/43   8/24 at 100.00 N/R 944,340
1,000   Cuyuna Range Hospital District, Minnesota, Health Care Facilities Gross Revenue Bonds, Refunding Series 2007, 5.000%, 6/01/29   10/17 at 100.00 N/R 1,000,780
8,655   Dakota and Washington Counties Housing and Redevelopment Authority, Minnesota, GNMA Mortgage-Backed Securities Program Single Family Residential Mortgage Revenue Bonds, Series 1988, 8.450%, 9/01/19 (Alternative Minimum Tax) (ETM)   No Opt. Call AA+ (4) 9,847,140
500   Deephaven, Minnesota, Charter School Lease Revenue Bonds, Eagle Ridge Academy Project, Series 2016A, 4.000%, 7/01/37   7/25 at 100.00 BB+ 476,830
2,000   Duluth Housing & Redevelopment Authority, Minnesota, Lease Revenue Bonds, Duluth Public Schools Academy, Series 2010A, 5.875%, 11/01/40   11/18 at 102.00 BB+ 2,067,400
6,375   Minneapolis, Minnesota, Health Care System Revenue Bonds, Fairview Hospital and Healthcare Services, Series 2008A, 6.625%, 11/15/28 (Pre-refunded 11/15/18)   11/18 at 100.00 A2 (4) 6,838,972
3,000   Minneapolis-St. Paul Metropolitan Airports Commission, Minnesota, Airport Revenue Bonds, Senior Lien Series 2010A, 5.000%, 1/01/35   1/20 at 100.00 AA- 3,247,500
2,295   Minneapolis-St. Paul Metropolitan Airports Commission, Minnesota, Airport Revenue Bonds, Senior Lien Series 2016C, 5.000%, 1/01/46   1/27 at 100.00 AA- 2,674,180


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Minnesota (continued)        
    Minneapolis-St. Paul Metropolitan Airports Commission, Minnesota, Airport Revenue Bonds, Subordinate Lien Series 2016D:        
$ 470   5.000%, 1/01/32 (Alternative Minimum Tax)   1/27 at 100.00 A+ $539,330
450   5.000%, 1/01/35 (Alternative Minimum Tax)   1/27 at 100.00 A+ 511,281
580   5.000%, 1/01/37 (Alternative Minimum Tax)   1/27 at 100.00 A+ 656,473
750   5.000%, 1/01/41 (Alternative Minimum Tax)   1/27 at 100.00 A+ 850,185
    Minnesota Higher Education Facilities Authority, Revenue Bonds, Carleton College, Refunding Series 2017:        
1,580   4.000%, 3/01/42   3/27 at 100.00 Aa2 1,682,905
3,850   4.000%, 3/01/47   3/27 at 100.00 Aa2 4,094,205
    Minnesota Municipal Power Agency, Electric Revenue Bonds, Refunding Series 2014A:        
700   5.000%, 10/01/34   10/24 at 100.00 A2 808,934
500   5.000%, 10/01/35   10/24 at 100.00 A2 577,455
1,000   Minnesota State, General Obligation Bonds, Various Purpose, Refunding Series 2010D, 5.000%, 8/01/18   No Opt. Call AA+ 1,041,390
2,000   Saint Louis Park, Minnesota, Health Care Facilities Revenue Bonds, Park Nicollet Health Services, Refunding Series 2009, 5.750%, 7/01/39 (Pre-refunded 7/01/19)   7/19 at 100.00 Aaa 2,181,680
    Saint Paul Housing & Redevelopment Authority, Minnesota, Charter School Lease Revenue Bonds, Hmong College Prep Academy Project, Series 2016A:        
2,205   5.500%, 9/01/36   9/26 at 100.00 BB+ 2,263,543
2,500   5.750%, 9/01/46   9/26 at 100.00 BB+ 2,576,750
    Saint Paul Housing and Redevelopment Authority Minnesota, Senior Housing and Health Care Revenue Bonds, Episcopal Homes Project, Series 2013:        
500   5.000%, 5/01/33   5/23 at 100.00 N/R 506,690
1,000   5.125%, 5/01/48   5/23 at 100.00 N/R 1,010,160
1,520   Saint Paul Housing and Redevelopment Authority, Minnesota, Charter School Lease Revenue Bonds, Community of Peace Academy Project, Refunding Series 2015A, 5.000%, 12/01/50   12/24 at 100.00 BBB- 1,588,172
400   Saint Paul Housing and Redevelopment Authority, Minnesota, Upper Landing Project Tax Increment Revenue Refunding Bonds, Series 2012, 5.000%, 9/01/26   3/20 at 102.00 N/R 416,860
750   St. Paul Housing and Redevelopment Authority, Minnesota, Hospital Revenue Bonds, HealthEast Inc., Series 2015A, 5.000%, 11/15/29   11/25 at 100.00 BB+ 837,668
3,835   Washington County, Minnesota, General Obligation Bonds, Capital Improvement Plan, Series 2007A, 3.500%, 2/01/28   8/17 at 100.00 AAA 3,839,180
2,000   Western Minnesota Municipal Power Agency, Power Supply Revenue Bonds, Series 2014A, 5.000%, 1/01/46   1/24 at 100.00 Aa3 2,241,140
51,725   Total Minnesota       55,606,641
    Mississippi – 0.9% (0.6% of Total Investments)        
620   Mississippi Business Finance Corporation, Pollution Control Revenue Refunding Bonds, System Energy Resources Inc. Project, Series 1998, 5.875%, 4/01/22   10/17 at 100.00 Baa3 625,927
    Mississippi Development Bank, Special Obligation Bonds, City of Jackson General Obligation Street Resurfacing Project, Series 2009:        
1,325   5.500%, 1/01/23 (Pre-refunded 1/01/19)   1/19 at 100.00 Baa2 (4) 1,410,105
850   5.800%, 1/01/24 (Pre-refunded 1/01/19)   1/19 at 100.00 Baa2 (4) 908,182


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Mississippi (continued)        
    Mississippi Hospital Equipment and Facilities Authority, Revenue Bonds, Baptist Memorial Healthcare, Series 2016A:        
$ 7,500   5.000%, 9/01/36   9/26 at 100.00 A- $8,506,050
15,500   5.000%, 9/01/46   9/26 at 100.00 A- 17,244,370
25,795   Total Mississippi       28,694,634
    Missouri – 2.2% (1.4% of Total Investments)        
890   Bi-State Development Agency of the Missouri-Illinois Metropolitan District, Mass Transit Sales Tax Appropriation Bonds, Refunding Combined Lien Series 2013A, 5.000%, 10/01/28   10/18 at 100.00 Aa2 932,133
1,000   Boone County, Missouri, Hospital Revenue Bonds, Boone Hospital Center, Refunding Series 2016, 5.000%, 8/01/28   8/26 at 100.00 Baa1 1,142,250
1,500   Boone County, Missouri, Hospital Revenue Bonds, Boone Hospital Center, Series 2008, 5.625%, 8/01/38 (Pre-refunded 8/01/18)   8/18 at 100.00 Baa1 (4) 1,570,065
2,000   Bridgeton Industrial Development Authority, Missouri, Senior Housing Revenue Bonds, The Sarah Community Project, Refunding Series 2016, 3.625%, 5/01/30   5/25 at 100.00 N/R 1,911,840
500   Curators of the University of Missouri, System Facilities Revenue Bonds, Refunding Series 2014A, 4.000%, 11/01/33   11/24 at 100.00 AA+ 539,955
2,000   Hanley Road Corridor Transportation Development District, Brentwood and Maplewood, Missouri, Transportation Sales Revenue Bonds, Refunding Series 2009A, 5.875%, 10/01/36   10/19 at 100.00 A- 2,147,680
400   Kansas City Industrial Development Authority, Missouri, Sales Tax Revenue Bonds, Ward Parkway Center Community Improvement District, Senior Refunding & Improvement Series 2016, 5.000%, 4/01/46   4/26 at 100.00 N/R 373,080
    Kansas City Municipal Assistance Corporation, Missouri, Leasehold Revenue Bonds, Series 2004B-1:        
7,000   0.000%, 4/15/27  –  AMBAC Insured   No Opt. Call A1 5,275,410
5,000   0.000%, 4/15/28  –  AMBAC Insured   No Opt. Call A1 3,616,000
5,000   0.000%, 4/15/29  –  AMBAC Insured   No Opt. Call A1 3,468,050
1,325   Missouri Development Finance Board, Infrastructure Facilities Revenue Bonds, Branson Landing Project, Series 2005A, 6.000%, 6/01/20   No Opt. Call A3 1,411,986
1,000   Missouri Health and Education Facilities Authority, Health Facilities Revenue Bonds, Saint Luke's Health System, Inc., Series 2016, 5.000%, 11/15/34   5/26 at 100.00 A+ 1,141,840
3,080   Missouri Health and Educational Facilities Authority, Educational Facilities Revenue Bonds, Saint Louis College of Pharmacy, Series 2013, 5.500%, 5/01/43   5/23 at 100.00 BBB 3,382,148
1,260   Missouri Health and Educational Facilities Authority, Educational Facilities Revenue Bonds, University of Central Missouri, Series 2013C-2, 5.000%, 10/01/34   10/23 at 100.00 A+ 1,414,047
    Missouri Health and Educational Facilities Authority, Health Facilities Revenue Bonds, CoxHealth, Series 2013A:        
1,045   5.000%, 11/15/44   11/23 at 100.00 A2 1,149,458
11,090   5.000%, 11/15/48   11/23 at 100.00 A2 12,175,822
10,645   Missouri Health and Educational Facilities Authority, Revenue Bonds, Lutheran Senior Services Projects, Series 2016B, 5.000%, 2/01/46   2/26 at 100.00 BBB+ 11,421,553
400   Missouri Health and Educational Facilities Authority, Revenue Bonds, Maryville University of St. Louis Project, Series 2015, 3.500%, 6/15/30   6/22 at 100.00 Baa2 400,672


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Missouri (continued)        
    Missouri Health and Educational Facilities Authority, Revenue Bonds, Saint Louis University, Series 2017A:        
$ 725   4.000%, 10/01/36   4/27 at 100.00 A1 $763,918
3,510   5.000%, 10/01/42   4/27 at 100.00 A1 4,058,472
3,775   Missouri Health and Educational Facilities Authority, Revenue Bonds, Webster University, Series 2011, 5.000%, 4/01/26   4/21 at 100.00 A- 4,298,970
1,000   North Central Missouri Regional Water Commission, Waterworks System Revenue Bonds, Series 2006, 5.000%, 1/01/37   10/17 at 100.00 N/R 1,001,360
2,000   Saint Charles County Public Water Supply District 2, Missouri, Certificates of Participation, Series 2015, 4.125%, 12/01/38   12/21 at 100.00 AA 2,067,260
490   Saint Louis, Missouri, Airport Revenue Bonds, Lambert-St. Louis International Airport, Refunding Series 2012, 4.250%, 7/01/29  –  FGIC Insured (Alternative Minimum Tax)   7/22 at 100.00 A- 511,864
575   St. Louis County Industrial Development Authority, Missouri, Revenue Bonds, Friendship Village of Chesterfield, Series 2012, 5.000%, 9/01/42   9/22 at 100.00 BBB- 590,278
375   St. Louis County Industrial Development Authority, Missouri, Revenue Bonds, Friendship Village of Sunset Hills, Series 2013A, 5.875%, 9/01/43   9/23 at 100.00 A- 424,065
67,585   Total Missouri       67,190,176
    Nebraska – 0.3% (0.2% of Total Investments)        
2,300   Central Plains Energy Project, Nebraska, Gas Project 3 Revenue Bonds, Series 2012, 5.000%, 9/01/32   9/22 at 100.00 BBB+ 2,515,326
    Douglas County Hospital Authority 3, Nebraska, Health Facilities Revenue Bonds, Nebraska Methodist Health System, Refunding Series 2015:        
1,635   4.125%, 11/01/36   11/25 at 100.00 A- 1,707,005
470   5.000%, 11/01/45   11/25 at 100.00 A- 521,893
    University of Nebraska, Revenue Bonds, Omaha Health & Recreation Project, Series 2008:        
1,250   5.000%, 5/15/33 (Pre-refunded 5/15/18)   5/18 at 100.00 AA (4) 1,290,613
2,100   5.000%, 5/15/38 (Pre-refunded 5/15/18)   5/18 at 100.00 AA (4) 2,168,229
7,755   Total Nebraska       8,203,066
    Nevada – 3.8% (2.5% of Total Investments)        
9,000   Clark County Water Reclamation District, Nevada, General Obligation Water Bonds, Series 2009A, 5.250%, 7/01/38 (Pre-refunded 7/01/19)   7/19 at 100.00 Aa1 (4) 9,735,930
39,625   Clark County, Nevada, Airport Revenue Bonds, Subordinate Lien Series 2010B, 5.750%, 7/01/42   1/20 at 100.00 A+ 44,017,035
2,500   Clark County, Nevada, Passenger Facility Charge Revenue Bonds, Las Vegas-McCarran International Airport, Refunding Series 2015C, 5.000%, 7/01/26   No Opt. Call A+ 3,053,800
    Clark County, Nevada, Passenger Facility Charge Revenue Bonds, Las Vegas-McCarran International Airport, Series 2010A:        
5,210   5.250%, 7/01/39  –  AGM Insured   1/20 at 100.00 Aa3 5,674,524
9,725   5.250%, 7/01/42   1/20 at 100.00 A+ 10,567,866
5,800   Las Vegas Redevelopment Agency, Nevada, Tax Increment Revenue Bonds, Series 2009A, 8.000%, 6/15/30 (Pre-refunded 6/15/19)   6/19 at 100.00 BBB+ (4) 6,546,286
    Las Vegas Valley Water District, Nevada, General Obligation Bonds, Refunding Series 2015:        
9,000   5.000%, 6/01/32   12/24 at 100.00 AA 10,561,320
7,835   5.000%, 6/01/39   12/24 at 100.00 AA 8,973,034


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Nevada (continued)        
$ 2,600   Las Vegas Valley Water District, Nevada, General Obligation Bonds, Water Series 2012B, 5.000%, 6/01/42   6/22 at 100.00 AA $2,945,384
10,000   North Las Vegas, Nevada, General Obligation Bonds, Series 2006, 5.000%, 5/01/36  –  NPFG Insured   10/17 at 100.00 B+ 10,002,100
2,280   North Las Vegas, Nevada, General Obligation Bonds, Wastewater Reclamation System Series 2006, 5.000%, 10/01/25  –  NPFG Insured   10/17 at 100.00 B+ 2,280,410
2,050   Washoe County, Nevada, General Obligation Bonds, Reno-Sparks Convention & Visitors Authority, Refunding Series 2011, 5.000%, 7/01/32   7/21 at 100.00 AA 2,302,375
105,625   Total Nevada       116,660,064
    New Hampshire – 0.3% (0.2% of Total Investments)        
5,000   New Hampshire Business Finance Authority, Revenue Bonds, Elliot Hospital Obligated Group Issue, Series 2009A, 6.125%, 10/01/39 (Pre-refunded 10/01/19)   10/19 at 100.00 BBB (4) 5,544,350
3,500   New Hampshire Health and Education Facilities Authority, Revenue Bonds, Catholic Medical Center, Series 2012, 4.000%, 7/01/32   7/22 at 100.00 Baa1 3,587,885
1,110   New Hampshire Health and Education Facilities Authority, Revenue Bonds, Dartmouth College, Tender Option Bond Trust 2016-XL0025, 12.770%, 6/01/39 (Pre-refunded 6/01/19) (IF) (5)   6/19 at 100.00 Aa1 (4) 1,371,372
9,610   Total New Hampshire       10,503,607
    New Jersey – 4.6% (3.0% of Total Investments)        
905   Camden County Improvement Authority, New Jersey, Health Care Redevelopment Revenue Bonds, Cooper Health System Obligated Group Issue, Series 2013A, 5.750%, 2/15/42   2/23 at 100.00 BBB+ 1,020,786
    New Jersey Economic Development Authority, Private Activity Bonds, The Goethals Bridge Replacement Project, Series 2013:        
1,965   5.000%, 1/01/31  –  AGM Insured (Alternative Minimum Tax)   1/24 at 100.00 BBB 2,169,851
2,805   5.125%, 1/01/39  –  AGM Insured (Alternative Minimum Tax)   1/24 at 100.00 BBB 3,115,401
2,685   5.125%, 7/01/42  –  AGM Insured (Alternative Minimum Tax)   1/24 at 100.00 BBB 2,960,508
6,770   New Jersey Economic Development Authority, School Facilities Construction Bonds, Series 2005N-1, 5.500%, 9/01/27  –  FGIC Insured   No Opt. Call A3 8,003,359
2,825   New Jersey Economic Development Authority, School Facilities Construction Financing Program Bonds, Refunding Series 2014UU, 5.000%, 6/15/30   6/24 at 100.00 BBB+ 2,943,537
2,000   New Jersey Economic Development Authority, School Facilities Construction Financing Program Bonds, Refunding Series 2016BBB, 5.500%, 6/15/31   12/26 at 100.00 BBB+ 2,198,800
555   New Jersey Economic Development Authority, Student Housing Revenue Bonds, Provident Group-Montclair Properties LLC, Montclair State University Student Housing Project, Series 2010A, 5.750%, 6/01/31   6/20 at 100.00 Baa3 600,615
6,030   New Jersey Economic Development Authority, Sublease Revenue Bonds, New Jersey Transit Corporation Projects, Refunding Series 2017B, 5.000%, 11/01/25   No Opt. Call BBB+ 6,542,309
900   New Jersey Educational Facilities Authority, Revenue Bonds, University of Medicine and Dentistry of New Jersey, Refunding Series 2009B, 7.500%, 12/01/32 (Pre-refunded 6/01/19)   6/19 at 100.00 N/R (4) 1,006,983
1,480   New Jersey Health Care Facilities Financing Authority, New Jersey, Revenue Bonds, Saint Peters University Hospital, Series 2007, 5.750%, 7/01/37   7/18 at 100.00 BB+ 1,512,220
8,415   New Jersey Health Care Facilities Financing Authority, Revenue Bonds, RWJ Barnabas Health Obligated Group, Refunding Series 2016A, 5.000%, 7/01/43   7/26 at 100.00 A+ 9,546,817
2,000   New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Saint Barnabas Health Care System, Refunding Series 2011A, 5.625%, 7/01/32 (Pre-refunded 7/01/21)   7/21 at 100.00 A+ (4) 2,343,880


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    New Jersey (continued)        
$ 1,235   New Jersey Health Care Facilities Financing Authority, Revenue Bonds, University Hospital Issue, Refunding Series 2015A, 5.000%, 7/01/46  –  AGM Insured   7/25 at 100.00 BBB $1,388,424
665   New Jersey Higher Education Assistance Authority, Student Loan Revenue Bonds, Tender Option Bond Trust 2016-XG0001, 17.288%, 6/01/30 (IF) (5)   6/19 at 100.00 BBB+ 845,587
    New Jersey Transportation Trust Fund Authority, Federal Highway Reimbursement Revenue Notes, Series 2016A-1:        
2,020   5.000%, 6/15/28   6/26 at 100.00 Baa1 2,201,679
3,340   5.000%, 6/15/29   6/26 at 100.00 Baa1 3,615,216
1,000   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Capital Appreciation Series 2010A, 0.000%, 12/15/26   No Opt. Call BBB+ 661,130
    New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Refunding Series 2006C:        
21,120   0.000%, 12/15/28  –  AMBAC Insured   No Opt. Call BBB+ 13,242,662
10,000   0.000%, 12/15/32  –  AGM Insured   No Opt. Call A- 5,318,400
20,000   0.000%, 12/15/33  –  AGM Insured   No Opt. Call A- 10,127,200
25,000   0.000%, 12/15/35  –  AMBAC Insured   No Opt. Call BBB+ 10,841,000
30,000   0.000%, 12/15/36  –  AMBAC Insured   No Opt. Call BBB+ 12,360,300
4,000   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 1999A, 5.750%, 6/15/18   No Opt. Call BBB+ 4,131,320
7,330   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2011B, 5.500%, 6/15/31   6/21 at 100.00 BBB+ 7,697,599
1,000   New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2012A, 5.000%, 6/15/42   6/22 at 100.00 BBB+ 1,031,090
    New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Series 2015AA:        
1,690   5.250%, 6/15/33   6/25 at 100.00 BBB+ 1,803,737
2,840   5.000%, 6/15/45   6/25 at 100.00 BBB+ 2,920,770
1,050   New Jersey Turnpike Authority, Revenue Bonds, Refunding Series 2017B, 4.000%, 1/01/35 (WI/DD, Settling 8/03/17)   1/28 at 100.00 A2 1,121,453
700   New Jersey Turnpike Authority, Revenue Bonds, Series 2009E, 5.250%, 1/01/40 (Pre-refunded 1/01/19)   1/19 at 100.00 A2 (4) 742,917
1,315   New Jersey Turnpike Authority, Revenue Bonds, Tender Option Bond Trust 2016-XF1057, 14.697%, 1/01/43 (IF) (5)   7/22 at 100.00 A2 1,965,005
570   Rutgers State University, New Jersey, Revenue Bonds, Refunding Series 2013L, 5.000%, 5/01/43   5/23 at 100.00 A+ 640,657
    Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds, Series 2007-1A:        
1,215   4.500%, 6/01/23   10/17 at 100.00 Baa2 1,219,556
7,080   4.625%, 6/01/26   10/17 at 100.00 Ba3 7,045,096
6,420   4.750%, 6/01/34   10/17 at 100.00 B3 6,118,902
2,000   5.000%, 6/01/41   10/17 at 100.00 B3 1,919,440
190,925   Total New Jersey       142,924,206
    New Mexico – 0.5% (0.3% of Total Investments)        
1,295   Farmington, New Mexico, Hospital Revenue Bonds, San Juan Regional Medical Center Inc., Series 2004A, 5.125%, 6/01/19   10/17 at 100.00 A3 1,299,222


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    New Mexico (continued)        
$ 2,000   Farmington, New Mexico, Pollution Control Revenue Bonds, Public Service Company of New Mexico San Juan Project, Refunding Series 2010D, 5.900%, 6/01/40   6/20 at 100.00 Baa2 $2,195,800
3,370   New Mexico Hospital Equipment Loan Council, Hospital Revenue Bonds, Presbyterian Healthcare Services, Series 2017A, 5.000%, 8/01/46   11/27 at 100.00 Aa3 3,889,991
5,585   Santa Fe County, New Mexico, Correctional System Gross Receipts Tax Revenue Bonds, Series 1997, 6.000%, 2/01/27  –  AGM Insured   No Opt. Call A2 6,849,500
12,250   Total New Mexico       14,234,513
    New York – 7.2% (4.7% of Total Investments)        
3,000   Brooklyn Arena Local Development Corporation, New York, Payment in Lieu of Taxes Revenue Bonds, Barclays Center Project, Refunding Series 2016A, 5.000%, 7/15/42   1/27 at 100.00 BBB- 3,376,260
    Brooklyn Arena Local Development Corporation, New York, Payment in Lieu of Taxes Revenue Bonds, Barclays Center Project, Series 2009:        
4,605   6.000%, 7/15/30 (Pre-refunded 1/15/20)   1/20 at 100.00 AA+ (4) 5,173,303
3,065   6.250%, 7/15/40 (Pre-refunded 1/15/20)   1/20 at 100.00 AA+ (4) 3,461,826
6,600   0.000%, 7/15/44   No Opt. Call BBB- 2,115,960
490   Buffalo and Erie County Industrial Land Development Corporation, New York, Revenue Bonds, Catholic Health System, Inc. Project, Series 2015, 5.250%, 7/01/35   7/25 at 100.00 BBB+ 549,912
3,125   Dormitory Authority of the State of New York, General Revenue Bonds, Saint Johns University, Series 2013A, 5.000%, 7/01/44   7/23 at 100.00 A- 3,458,781
    Dormitory Authority of the State of New York, Revenue Bonds, North Shore Long Island Jewish Obligated Group, Series 2015A:        
1,680   4.125%, 5/01/42   5/25 at 100.00 A- 1,769,326
3,195   5.000%, 5/01/43   5/25 at 100.00 A- 3,617,283
600   Dormitory Authority of the State of New York, Revenue Bonds, Orange Regional Medical Center Obligated Group, Series 2017, 5.000%, 12/01/34   6/27 at 100.00 BB+ 661,176
5,325   Dormitory Authority of the State of New York, State Personal Income Tax Revenue Bonds, General Purpose Series 2011C, 5.000%, 3/15/41   3/21 at 100.00 Aa1 5,936,097
    Hudson Yards Infrastructure Corporation, New York, Revenue Bonds, Senior Fiscal 2012 Series 2011A:        
3,100   5.250%, 2/15/47   2/21 at 100.00 AA- 3,462,669
1,035   5.750%, 2/15/47   2/21 at 100.00 AA- 1,191,026
1,565   5.750%, 2/15/47 (Pre-refunded 2/15/21)   2/21 at 100.00 Aa3 (4) 1,816,308
    Long Island Power Authority, New York, Electric System General Revenue Bonds, Series 2014A:        
1,155   4.000%, 9/01/39  –  AGM Insured   9/24 at 100.00 A- 1,217,994
3,000   5.000%, 9/01/39   9/24 at 100.00 A- 3,432,720
860   5.000%, 9/01/44   9/24 at 100.00 A- 979,893
2,925   Long Island Power Authority, New York, Electric System Revenue Bonds, Refunding Series 2009A, 5.500%, 4/01/24 (Pre-refunded 4/01/19)   4/19 at 100.00 A- (4) 3,145,516
10,000   Metropolitan Transportation Authority, New York, Dedicated Tax Fund Bonds, Refunding Series 2012A, 0.000%, 11/15/32   No Opt. Call AA 6,244,300
1,000   Metropolitan Transportation Authority, New York, Dedicated Tax Fund Bonds, Series 2009B, 5.000%, 11/15/34 (Pre-refunded 11/15/19)   11/19 at 100.00 AA (4) 1,092,730
750   Metropolitan Transportation Authority, New York, Transportation Revenue Bonds, Series 2011A, 5.000%, 11/15/41   11/21 at 100.00 A1 846,015


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    New York (continued)        
$ 5,000   Metropolitan Transportation Authority, New York, Transportation Revenue Bonds, Series 2013A, 5.000%, 11/15/38   5/23 at 100.00 A1 $5,723,250
    New York City Industrial Development Agency, New York, Civic Facility Revenue Bonds, Bronx Parking Development Company, LLC Project, Series 2007:        
500   5.750%, 10/01/37 (8)   10/17 at 102.00 N/R 159,900
1,000   5.875%, 10/01/46 (8)   10/17 at 102.00 N/R 319,800
4,755   New York City Industrial Development Agency, New York, Revenue Bonds, Yankee Stadium Project PILOT, Series 2009A, 7.000%, 3/01/49  –  AGC Insured   3/19 at 100.00 A3 5,196,264
3,400   New York City Municipal Water Finance Authority, New York, Water and Sewer System Revenue Bonds, Second Generation Resolution, Fiscal 2011 Series EE, 5.375%, 6/15/43   12/20 at 100.00 AA+ 3,838,158
600   New York City Municipal Water Finance Authority, New York, Water and Sewer System Revenue Bonds, Second Generation Resolution, Series 2009EE-2, 5.250%, 6/15/40   6/19 at 100.00 AA+ 644,808
5,900   New York City Municipal Water Finance Authority, New York, Water and Sewer System Second General Resolution Revenue Bonds, Fiscal 2014 Series BB, 5.000%, 6/15/46   6/23 at 100.00 AA+ 6,752,786
500   New York City Municipal Water Finance Authority, New York, Water and Sewerage System Revenue Bonds, Tender Option Bond Trust 2015-XF0097, 15.488%, 6/15/39 (IF)   6/19 at 100.00 Aa1 639,360
5,000   New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Subordinate Fiscal 2013 Series I, 5.000%, 5/01/38   5/23 at 100.00 Aa1 5,728,850
2,000   New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Subordinate Fiscal 2017 Series A-1, 5.000%, 5/01/40   5/26 at 100.00 Aa1 2,332,540
3,760   New York City Transitional Finance Authority, New York, Future Tax Secured Bonds, Subordinate Fiscal 2017 Series E-1, 5.000%, 2/01/43   2/27 at 100.00 Aa1 4,401,343
2,060   New York City, New York, General Obligation Bonds, Fiscal 2017 Series B-1, 5.000%, 12/01/41   12/26 at 100.00 AA 2,411,436
5   New York City, New York, General Obligation Bonds, Fiscal Series 2005M, 5.000%, 4/01/24   10/17 at 100.00 AA 5,015
2,000   New York Convention Center Development Corporation, New York, Revenue Bonds, Hotel Unit Fee Secured, Refunding Series 2015, 5.000%, 11/15/45   11/25 at 100.00 Aa3 2,301,840
550   New York Counties Tobacco Trust I, Tobacco Settlement Pass-Through Bonds, Series 2000B, 6.500%, 6/01/35   10/17 at 100.00 Baa1 560,802
25,170   New York Liberty Development Corporation, New York, Liberty Revenue Bonds, 3 World Trade Center Project, Class 1 Series 2014, 5.000%, 11/15/44   11/24 at 100.00 N/R 27,326,062
    New York Liberty Development Corporation, New York, Liberty Revenue Bonds, 4 World Trade Center Project, Series 2011:        
1,560   5.000%, 11/15/44   11/21 at 100.00 A 1,730,024
4,350   5.750%, 11/15/51   11/21 at 100.00 A 5,025,860
7,500   New York Liberty Development Corporation, Revenue Bonds, Goldman Sachs Headquarters Issue, Series 2005, 5.250%, 10/01/35   No Opt. Call BBB+ 9,456,525
    New York Transportation Development Corporation, New York, Special Facility Revenue Bonds, American Airlines, Inc. John F Kennedy International Airport Project, Refunding Series 2016:        
2,000   5.000%, 8/01/20 (Alternative Minimum Tax)   No Opt. Call BB- 2,155,920
5,260   5.000%, 8/01/31 (Alternative Minimum Tax)   8/21 at 100.00 BB- 5,630,620


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    New York (continued)        
    New York Transportation Development Corporation, Special Facilities Bonds, LaGuardia Airport Terminal B Redevelopment Project, Series 2016A:        
$ 2,000   4.000%, 7/01/35  –  AGM Insured (Alternative Minimum Tax)   7/24 at 100.00 BBB $2,082,760
10,800   5.000%, 7/01/41 (Alternative Minimum Tax)   7/24 at 100.00 Baa3 11,749,212
10,000   5.000%, 7/01/46 (Alternative Minimum Tax)   7/24 at 100.00 Baa3 10,839,300
19,560   5.250%, 1/01/50 (Alternative Minimum Tax)   7/24 at 100.00 Baa3 21,503,677
500   Onondaga Civic Development Corporation, New York, Revenue Bonds, Saint Josephs Hospital Health Center Project, Series 2014A, 5.125%, 7/01/31 (Pre-refunded 7/01/19)   7/19 at 100.00 N/R (4) 539,105
1,310   Port Authority of New York and New Jersey, Consolidated Revenue Bonds, One Hundred Seventy Eighth Series 2013, 5.000%, 12/01/43 (Alternative Minimum Tax)   12/23 at 100.00 AA- 1,447,314
4,320   Port Authority of New York and New Jersey, Consolidated Revenue Bonds, One Hundred Seventy Ninth Series 2013, 5.000%, 12/01/38   12/23 at 100.00 AA- 5,020,229
    Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air Terminal LLC Project, Eighth Series 2010:        
5,000   6.500%, 12/01/28   10/17 at 100.00 BBB 5,081,800
590   5.500%, 12/01/31   12/20 at 100.00 BBB 652,227
1,670   6.000%, 12/01/36   12/20 at 100.00 BBB 1,878,733
3,045   6.000%, 12/01/42   12/20 at 100.00 BBB 3,417,952
5,145   Port Authority of New York and New Jersey, Special Project Bonds, JFK International Air Terminal LLC, Sixth Series 1997, 5.900%, 12/01/17  –  NPFG Insured (Alternative Minimum Tax)   10/17 at 100.00 BBB+ 5,193,157
1,170   Suffolk County Economic Development Corporation, New York, Revenue Bonds, Peconic Landing At Southold, Inc. Project, Refunding Series 2010, 5.875%, 12/01/30   12/20 at 100.00 BBB- 1,284,660
    Syracuse Industrial Development Authority, New York, PILOT Revenue Bonds, Carousel Center Project, Refunding Series 2016A:        
2,750   5.000%, 1/01/32 (Alternative Minimum Tax)   1/26 at 100.00 Baa1 3,128,950
3,800   5.000%, 1/01/33 (Alternative Minimum Tax)   1/26 at 100.00 Baa1 4,305,590
211,605   Total New York       224,014,924
    North Carolina – 1.8% (1.2% of Total Investments)        
2,850   Charlotte-Mecklenberg Hospital Authority, North Carolina, Carolinas HealthCare System Revenue Bonds, Tender Option Bond Trust 2016-XG0005, 13.444%, 1/15/47 (Pre-refunded 1/15/18) (IF) (5)   1/18 at 100.00 Aa3 (4) 3,013,932
    Charlotte-Mecklenburg Hospital Authority, North Carolina, Health Care Revenue Bonds, DBA Carolinas HealthCare System, Series 2008A:        
1,500   5.250%, 1/15/24 (Pre-refunded 1/15/18)  –  AGC Insured   1/18 at 100.00 AA- (4) 1,530,465
3,000   5.000%, 1/15/47 (Pre-refunded 1/15/18)   1/18 at 100.00 AA- (4) 3,057,540
12,250   Fayetteville State University, North Carolina, General Revenue Bonds, Series 2013A, 5.125%, 4/01/43   4/23 at 100.00 A- 13,469,365
1,500   North Carolina Capital Facilities Financing Agency, Educational Facilities Revenue Bond, Meredith College, Series 2008A, 6.125%, 6/01/35 (Pre-refunded 6/01/18)   6/18 at 100.00 BBB (4) 1,565,730
    North Carolina Department of Transportation, Private Activity Revenue Bonds, I-77 Hot Lanes Project, Series 2015:        
3,555   5.000%, 12/31/37 (Alternative Minimum Tax)   6/25 at 100.00 BBB- 3,863,183
3,480   5.000%, 6/30/54 (Alternative Minimum Tax)   6/25 at 100.00 BBB- 3,698,022
10,300   North Carolina Eastern Municipal Power Agency, Power System Revenue Bonds, Refunding Series 1993B, 6.000%, 1/01/22  –  CAPMAC Insured (ETM) (UB) (5)   No Opt. Call A3 (4) 12,422,933


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    North Carolina (continued)        
    North Carolina Medical Care Commission, Health Care Facilities Revenue Bonds, WakeMed, Refunding Series 2012A:        
$ 5,000   5.000%, 10/01/27   10/22 at 100.00 A2 $5,717,500
3,400   5.000%, 10/01/31   10/22 at 100.00 A2 3,816,500
1,570   North Carolina Medical Care Commission, Retirement Facilities First Mortgage Revenue Bonds, Southminster Project, Refunding Series 2016, 5.000%, 10/01/31   10/24 at 102.00 N/R 1,660,730
500   North Carolina Municipal Power Agency 1, Catawba Electric Revenue Bonds, Refunding Series 2015A, 5.000%, 1/01/32   1/26 at 100.00 A 586,260
1,900   North Carolina Turnpike Authority, Triangle Expressway System Revenue Bonds, Series 2009A, 5.750%, 1/01/39 (Pre-refunded 1/01/19)  –  AGC Insured   1/19 at 100.00 BBB- (4) 2,028,155
50,805   Total North Carolina       56,430,315
    North Dakota – 0.3% (0.2% of Total Investments)        
675   Burleigh County, North Dakota, Health Care Revenue Bonds, Saint Alexius Medical Center Project, Refunding Series 2012A, 5.000%, 7/01/38 (Pre-refunded 7/01/22)   7/22 at 100.00 N/R (4) 794,286
6,100   Fargo, North Dakota, Health System Revenue Bonds, Sanford Health, Refunding Series 2011, 6.250%, 11/01/31   11/21 at 100.00 A+ 7,183,726
1,875   Grand Forks, North Dakota, Health Care System Revenue Bonds, Altru Health System Obligated Group, Series 2012, 5.000%, 12/01/32   12/21 at 100.00 Baa1 2,027,831
700   Grand Forks, North Dakota, Senior Housing & Nursing Facilities Revenue Bonds, Valley Homes and Services Obligated Group, Series 2017, 5.000%, 12/01/36   12/26 at 100.00 N/R 709,282
9,350   Total North Dakota       10,715,125
    Ohio – 7.0% (4.6% of Total Investments)        
6,000   Akron, Bath and Copley Joint Township Hospital District, Ohio, Hospital Facilities Revenue Bonds, Summa Health System, Refunding & Improvement Series 2016, 5.250%, 11/15/46   11/26 at 100.00 Baa1 6,765,360
1,340   Bowling Green State University, Ohio, General Receipts Bonds, Series 2017B, 5.000%, 6/01/45 (WI/DD, Settling 8/10/17)   6/27 at 100.00 A1 1,541,000
    Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Senior Lien, Series 2007A-2:        
16,425   5.125%, 6/01/24   10/17 at 100.00 Caa1 15,392,032
5,155   5.375%, 6/01/24   10/17 at 100.00 Caa1 5,006,381
17,205   5.875%, 6/01/30   10/17 at 100.00 Caa1 16,315,502
11,785   5.750%, 6/01/34   10/17 at 100.00 Caa1 11,183,847
12,645   6.000%, 6/01/42   10/17 at 100.00 B- 11,850,388
18,640   5.875%, 6/01/47   10/17 at 100.00 B- 17,654,876
2,345   6.500%, 6/01/47   10/17 at 100.00 B- 2,324,880
24,910   Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Senior Lien, Series 2007A-3, 6.250%, 6/01/37   6/22 at 100.00 Caa1 24,949,358
    Butler County, Ohio, Hospital Facilities Revenue Bonds, UC Health, Series 2010:        
7,125   5.250%, 11/01/29   11/20 at 100.00 A 7,869,206
1,665   5.500%, 11/01/40 (Pre-refunded 11/01/20)   11/20 at 100.00 N/R (4) 1,895,070
3,335   5.500%, 11/01/40   11/20 at 100.00 A 3,693,746
1,000   5.750%, 11/01/40 (Pre-refunded 11/01/20)   11/20 at 100.00 A (4) 1,146,130
4,795   Fairfield County, Ohio, Hospital Facilities Revenue Bonds, Fairfield Medical Center Project, Series 2013, 5.000%, 6/15/43   6/23 at 100.00 Baa2 5,095,071


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Ohio (continued)        
$ 760   Franklin County, Ohio, Healthcare Facilities Revenue Bonds, Ohio Presbyterian Retirement Services, Improvement Series 2010A, 5.625%, 7/01/26   7/20 at 100.00 BBB- $819,941
5,000   Hamilton County, Ohio, Hospital Facilities Revenue Bonds, TriHealth, Inc. Obligated Group Project, Series 2017A, 5.000%, 8/15/42   8/27 at 100.00 A+ 5,693,750
    JobsOhio Beverage System, Ohio, Statewide Liquor Profits Revenue Bonds, Senior Lien Series 2013A:        
1,000   5.000%, 1/01/38   1/23 at 100.00 Aa3 1,120,780
16,820   5.000%, 1/01/38 (UB) (5)   1/23 at 100.00 Aa3 18,851,520
    JobsOhio Beverage System, Ohio, Statewide Senior Lien Liquor Profits Revenue Bonds, Tender Option Bond Trust 2016-XG0052:        
265   15.383%, 1/01/38 (IF) (5)   1/23 at 100.00 Aa3 392,049
625   15.491%, 1/01/38 (IF) (5)   1/23 at 100.00 Aa3 926,950
975   15.491%, 1/01/38 (IF) (5)   1/23 at 100.00 Aa3 1,446,042
1,315   15.491%, 1/01/38 (IF) (5)   1/23 at 100.00 Aa3 1,950,303
8,360   Lake County, Ohio, Hospital Facilities Revenue Bonds, Lake Hospital System, Inc., Refunding Series 2015, 5.000%, 8/15/45   8/25 at 100.00 A3 9,213,472
7,495   Lucas County, Ohio, Hospital Revenue Bonds, ProMedica Healthcare Obligated Group, Series 2011A, 6.000%, 11/15/41   11/21 at 100.00 A1 8,677,561
1,000   Middleburg Heights, Ohio, Hospital Facilities Revenue Bonds, Southwest General Health Center Project, Refunding Series 2011, 5.125%, 8/01/31   8/21 at 100.00 A2 1,088,590
2,695   Montgomery County, Ohio, Revenue Bonds, Catholic Health Initiatives, Series 2004A, 5.000%, 5/01/30   10/17 at 100.00 BBB+ 2,700,902
2,000   Muskingum County, Ohio, Hospital Facilities Revenue Bonds, Genesis HealthCare System Obligated Group Project, Series 2013, 5.000%, 2/15/33   2/23 at 100.00 Ba2 2,119,860
3,000   Ohio Air Quality Development Authority, Ohio, Pollution Control Revenue Bonds, FirstEnergy Generation Corporation Project, Refunding Series 2009D, 4.250%, 8/01/29 (Mandatory Put 9/15/21)   No Opt. Call CCC+ 2,877,060
1,800   Ohio Air Quality Development Authority, Ohio, Revenue Bonds, Ohio Valley Electric Corporation Project, Series 2009E, 5.625%, 10/01/19   No Opt. Call Ba1 1,867,518
1,000   Ohio Higher Educational Facilities Commission, Revenue Bonds, University of Dayton, Refunding Series 2011A, 5.375%, 12/01/30   12/20 at 100.00 A2 1,124,380
4,350   Ohio Higher Educational Facilities Commission, Revenue Bonds, University of Dayton, Refunding Series 2015A, 5.000%, 12/01/44   6/25 at 100.00 A2 4,886,921
1,210   Ohio State, Private Activity Bonds, Portsmouth Gateway Group, LLC - Borrower, Portsmouth Bypass Project, Series 2015, 5.000%, 12/31/39 (Alternative Minimum Tax)   6/25 at 100.00 Baa2 1,327,939
    Ohio Turnpike Commission, Turnpike Revenue Bonds, Infrastructure Project, Junior Lien Series 2013A-1:        
1,500   5.250%, 2/15/39   2/23 at 100.00 A+ 1,747,110
10,530   5.000%, 2/15/48   2/23 at 100.00 A+ 11,793,600
3,710   Ohio Turnpike Commission, Turnpike Revenue Bonds, Infrastructure Projects, Junior Lien Convertible Series 2013A-3, 0.000%, 2/15/36 (7)   2/31 at 100.00 A+ 3,590,983
1,800   Ohio Water Development Authority, Solid Waste Disposal Revenue Bonds, Waste Management Inc., Series 2004, 2.250%, 7/01/21   No Opt. Call A- 1,792,782


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Ohio (continued)        
$ 135   Warren County, Ohio, Limited Tax General Obligations, Series 1997, 5.500%, 12/01/17   10/17 at 100.00 Aaa $ 135,482
211,715   Total Ohio       218,828,342
    Oklahoma – 0.5% (0.3% of Total Investments)        
2,000   Fort Sill Apache Tribe of Oklahoma Economic Development Authority, Gaming Enterprise Revenue Bonds, Fort Sill Apache Casino, Series 2011A, 8.500%, 8/25/26   8/21 at 100.00 N/R 2,335,440
1,675   Oklahoma Development Finance Authority, Health System Revenue Bonds, Integris Baptist Medical Center, Series 2008B, 5.250%, 8/15/38 (Pre-refunded 8/15/18)   8/18 at 100.00 AA- (4) 1,750,258
3,000   Tulsa Airports Improvement Trust, Oklahoma, General Airport Revenue Bonds, Series 2013A, 5.625%, 6/01/43  –  BAM Insured (Alternative Minimum Tax)   6/23 at 100.00 Baa1 3,426,180
4,985   Tulsa Airports Improvement Trust, Oklahoma, General Airport Revenue Bonds, Series 2015A, 5.000%, 6/01/45  –  BAM Insured (Alternative Minimum Tax)   6/24 at 100.00 Baa1 5,462,712
1,000   Tulsa County Industrial Authority, Oklahoma, Senior Living Community Revenue Bonds, Montereau, Inc. Project, Refunding Series 2017, 5.250%, 11/15/37   11/25 at 102.00 BBB- 1,107,040
12,660   Total Oklahoma       14,081,630
    Oregon – 1.4% (0.9% of Total Investments)        
1,495   Beaverton School District 48J, Washington and Multnomah Counties, Oregon, General Obligation Bonds, Convertible Deferred Interest Series 2017D, 0.000%, 6/15/36   6/27 at 100.00 AA+ 1,692,340
4,875   Deschutes County Hospital Facility Authority, Oregon, Hospital Revenue Bonds, Saint Charles Health System, Inc., Series 2016A, 5.000%, 1/01/48   1/26 at 100.00 A2 5,429,141
2,000   Oregon Department of Administrative Services, State Lottery Revenue Bonds, Refunding Series 2014C, 5.000%, 4/01/25   4/24 at 100.00 Aa2 2,422,040
5,940   Oregon Facilities Authority, Revenue Bonds, Legacy Health Project, Refunding Series 2016A, 5.000%, 6/01/46   6/26 at 100.00 A1 6,742,138
1,500   Oregon Health and Science University, Revenue Bonds, Refunding Series 2016B, 5.000%, 7/01/39   7/26 at 100.00 AA- 1,747,830
    Port of Portland, Oregon, International Airport Revenue Bonds, Series 2017-24B:        
6,000   5.000%, 7/01/42 (Alternative Minimum Tax)   1/27 at 100.00 AA- 6,892,980
7,500   5.000%, 7/01/47 (Alternative Minimum Tax)   1/27 at 100.00 AA- 8,561,400
9,500   Salem Hospital Facility Authority, Oregon, Revenue Bonds, Salem Hospital Project, Refunding Series 2016A, 5.000%, 5/15/46   5/26 at 100.00 A+ 10,661,280
38,810   Total Oregon       44,149,149
    Pennsylvania – 4.2% (2.8% of Total Investments)        
1,100   Allegheny Country Industrial Development Authority, Pennsylvania, Environmental Improvement Revenue Bonds, United States Steel Corporation Project, Refunding Series 2009, 6.750%, 11/01/24   11/19 at 100.00 Caa1 1,147,707
2,000   Allegheny County Hospital Development Authority, Pennsylvania, Revenue Bonds, University of Pittsburgh Medical Center, Series 2009A, 5.375%, 8/15/29   8/19 at 100.00 A+ 2,150,700
    Allegheny County, Pennsylvania, General Obligation Bonds, Series 2011C-65:        
1,960   5.375%, 5/01/31   5/21 at 100.00 A1 2,239,006
2,570   5.375%, 5/01/31 (Pre-refunded 5/01/21)   5/21 at 100.00 N/R (4) 2,973,027
    Cumberland County Municipal Authority Revenue Bonds, Pennsylvania, Diakon Lutheran Social Ministries Project, Series 2009:        
100   6.125%, 1/01/29   1/19 at 100.00 BBB+ 106,808
900   6.125%, 1/01/29 (Pre-refunded 1/01/19)   1/19 at 100.00 N/R (4) 965,439


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Pennsylvania (continued)        
$ 1,000   Delaware County Authority, Pennsylvania, Revenue Bonds, Neumann College, Series 2008, 6.000%, 10/01/30 (Pre-refunded 10/01/18)   10/18 at 100.00 BBB (4) $1,058,980
    Delaware River Joint Toll Bridge Commission, New Jersey and Pennsylvania, Bridge System Revenue Bonds, Series 2017:        
3,500   5.000%, 7/01/37   7/27 at 100.00 A 4,107,985
8,385   5.000%, 7/01/42   7/27 at 100.00 A 9,755,444
    Erie Water Authority, Erie County, Pennsylvania, Water Revenue Bonds, Series 2008:        
320   5.000%, 12/01/43 (Pre-refunded 12/01/18)  –  AGM Insured   12/18 at 100.00 A2 (4) 337,347
510   5.000%, 12/01/43  –  AGM Insured   12/18 at 100.00 A2 534,062
1,670   5.000%, 12/01/43 (Pre-refunded 12/01/18)  –  AGM Insured   12/18 at 100.00 A2 (4) 1,760,531
    Lehigh County Authority, Pennsylvania, Water and Sewer Revenue Bonds, Allentown Concession, Capital Appreciation Series 2013B:        
5,400   0.000%, 12/01/33   No Opt. Call A 2,967,084
11,000   0.000%, 12/01/38   No Opt. Call A 4,865,960
5,375   Lehigh County Authority, Pennsylvania, Water and Sewer Revenue Bonds, Allentown Concession, Series 2013A, 5.125%, 12/01/47   12/23 at 100.00 A 6,001,241
1,665   Montgomery County Industrial Development Authority, Pennsylvania, FHA Insured Mortgage Revenue Bonds, New Regional Medical Center Project, Series 2010, 5.375%, 8/01/38 (Pre-refunded 8/01/20)   8/20 at 100.00 N/R (4) 1,878,353
3,430   Montgomery County Industrial Development Authority, Pennsylvania, Health System Revenue Bonds, Albert Einstein Healthcare Network Issue, Series 2015A, 5.250%, 1/15/45   1/25 at 100.00 Baa2 3,692,532
2,000   Montgomery County Industrial Development Authority, Pennsylvania, Revenue Bonds, ACTS Retirement-Life Communities, Inc. Obligated Group, Series 2016, 5.000%, 11/15/36   11/26 at 100.00 A- 2,219,300
235   Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue Bonds, National Gypsum Company, Refunding Series 2014, 5.500%, 11/01/44 (Alternative Minimum Tax)   11/24 at 100.00 N/R 252,768
400   Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, Edinboro University Foundation Student Housing Project, Series 2010, 6.000%, 7/01/43 (Pre-refunded 7/01/20)   7/20 at 100.00 N/R (4) 455,916
    Pennsylvania Turnpike Commission, Motor License Fund-Enhanced Subordinate Special Revenue Bonds, Series 2010A:        
940   5.500%, 12/01/34 (Pre-refunded 12/01/20)   12/20 at 100.00 N/R (4) 1,077,541
4,310   5.500%, 12/01/34   12/20 at 100.00 A2 4,813,063
16,750   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Capital Appreciation Series 2009E, 0.000%, 12/01/38 (7)   12/27 at 100.00 A- 20,689,265
4,305   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Series 2015A-1, 5.000%, 12/01/45   6/25 at 100.00 A 4,804,811
2,000   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Subordinate Lien Series 2014A-1, 5.000%, 12/01/38   12/24 at 100.00 A- 2,237,040
14,500   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Subordinate Series 2009C, 6.250%, 6/01/33  –  AGM Insured   6/26 at 100.00 A2 18,751,980
6,250   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Subordinate Series 2015B-1, 5.000%, 12/01/45   12/25 at 100.00 A- 6,929,438
5,000   Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Subordinate Series 2016A-1, 5.000%, 12/01/46   12/25 at 100.00 A3 5,539,750


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Pennsylvania (continued)        
$ 1,595   Philadelphia Hospitals and Higher Education Facilities Authority, Pennsylvania, Health System Revenue Bonds, Jefferson Health System, Series 2010B, 5.000%, 5/15/40 (Pre-refunded 5/15/20)   5/20 at 100.00 N/R (4) $1,765,841
1,425   Philadelphia, Pennsylvania, General Obligation Bonds, Refunding Series 2011, 6.500%, 8/01/41 (Pre-refunded 8/01/20)   8/20 at 100.00 A- (4) 1,654,838
2,350   Union County Hospital Authority, Pennsylvania, Hospital Revenue Bonds, Evangelical Community Hospital Project, Refunding & Improvement Series 2011, 5.500%, 8/01/20   No Opt. Call A- 2,608,876
9,800   Westmoreland County Municipal Authority, Pennsylvania, Municipal Service Revenue Bonds, Series 2016, 5.000%, 8/15/38  –  BAM Insured   8/25 at 100.00 AA 11,194,442
122,745   Total Pennsylvania       131,537,075
    Puerto Rico – 0.3% (0.2% of Total Investments)        
4,300   Puerto Rico Housing Finance Authority, Capital Fund Program Revenue Bonds, Series 2003, 4.500%, 12/01/23   10/17 at 100.00 A2 4,428,570
800   Puerto Rico Public Buildings Authority, Guaranteed Government Facilities Revenue Bonds, Refunding Series 2002D, 5.450%, 7/01/31  –  AMBAC Insured   10/17 at 100.00 D 801,600
14,000   Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Series 2007A, 0.000%, 8/01/42  –  FGIC Insured   No Opt. Call D 3,280,760
19,100   Total Puerto Rico       8,510,930
    Rhode Island – 0.5% (0.3% of Total Investments)        
7,230   Rhode Island Health and Educational Building Corporation, Higher Education Facility Revenue Bonds, Brown University, Series 2013, 5.000%, 9/01/43   9/23 at 100.00 AA+ 8,321,079
3,320   Rhode Island Health and Educational Building Corporation, Hospital Financing Revenue Bonds, Lifespan Obligated Group, Refunding Series 2016, 5.000%, 5/15/39   5/26 at 100.00 BBB+ 3,602,200
30,175   Rhode Island Tobacco Settlement Financing Corporation, Tobacco Settlement Asset-Backed Bonds, Series 2007A, 0.000%, 6/01/52   10/17 at 12.91 CCC+ 3,201,568
40,725   Total Rhode Island       15,124,847
    South Carolina – 3.2% (2.1% of Total Investments)        
1,950   Florence County, South Carolina, Hospital Revenue Bonds, McLeod Regional Medical Center, Refunding Series 2010A, 5.000%, 11/01/37   11/20 at 100.00 AA- 2,108,164
    Lexington County Health Services District, Inc., South Carolina, Hospital Revenue Bonds, Lexington Medical Center, Series 2016:        
5,010   5.000%, 11/01/41   5/26 at 100.00 A1 5,652,482
3,180   5.000%, 11/01/46   5/26 at 100.00 A1 3,569,804
    Piedmont Municipal Power Agency, South Carolina, Electric Revenue Bonds, Series 2004A-2:        
21,565   0.000%, 1/01/30  –  AMBAC Insured   No Opt. Call A- 14,363,153
1,250   0.000%, 1/01/31  –  AMBAC Insured   No Opt. Call A3 806,800
4,610   Rock Hill, South Carolina, Combined Utility System Revenue Bonds, Series 2016, 5.000%, 1/01/47   1/26 at 100.00 A3 5,172,697
1,640   South Carolina Jobs-Economic Development Authority, Economic Development Revenue Bonds, Furman University, Refunding Series 2015, 5.000%, 10/01/45   10/25 at 100.00 A1 1,874,028
875   South Carolina Jobs-Economic Development Authority, Hospital Revenue Bonds, Palmetto Health, Refunding Series 2011A, 6.500%, 8/01/39  –  AGM Insured   8/21 at 100.00 BBB+ 1,021,239
9,000   South Carolina Public Service Authority Santee Cooper Revenue Obligations, Refunding Series 2016B, 5.000%, 12/01/56   12/26 at 100.00 A1 9,917,550


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    South Carolina (continued)        
    South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Refunding Series 2014C:        
$ 12,805   5.000%, 12/01/39   12/24 at 100.00 A1 $14,041,579
8,830   5.000%, 12/01/46   12/24 at 100.00 A1 9,623,111
5,500   South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Series 2013A, 5.125%, 12/01/43   12/23 at 100.00 A1 6,026,405
3,455   South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Series 2014A, 5.500%, 12/01/54   6/24 at 100.00 A1 3,914,722
14,765   South Carolina Public Service Authority, Santee Cooper Revenue Obligations, Series 2015E, 5.250%, 12/01/55   12/25 at 100.00 A1 16,539,310
5,000   South Carolina State Ports Authority, Revenue Bonds, Series 2015, 5.250%, 7/01/55 (Alternative Minimum Tax)   7/25 at 100.00 A+ 5,630,100
99,435   Total South Carolina       100,261,144
    South Dakota – 0.4% (0.3% of Total Investments)        
1,300   Deadwood, South Dakota, Sales Tax Revenue Bonds, Series 2009B, 6.250%, 12/01/28   12/19 at 100.00 N/R 1,370,538
1,460   South Dakota Health and Educational Facilities Authority, Revenue Bonds, Sanford Health, Series 2014B, 5.000%, 11/01/44   11/24 at 100.00 A+ 1,612,862
7,185   South Dakota Health and Educational Facilities Authority, Revenue Bonds, Sanford Health, Series 2015, 5.000%, 11/01/45   11/25 at 100.00 A+ 8,071,557
1,000   South Dakota Health and Educational Facilities Authority, Revenue Bonds, Vocational Education Program, Series 2008, 5.500%, 8/01/38 (Pre-refunded 8/01/18)  –  AGC Insured   8/18 at 100.00 AA+ (4) 1,045,670
10,945   Total South Dakota       12,100,627
    Tennessee – 1.9% (1.3% of Total Investments)        
9,460   Chattanooga Health, Educational and Housing Facility Board, Tennessee, Revenue Bonds, Catholic Health Initiatives, Series 2013A, 5.250%, 1/01/45   1/23 at 100.00 BBB+ 10,006,882
3,125   Johnson City Health and Educational Facilities Board, Tennessee, Hospital Revenue Bonds, Mountain States Health Alliance, Refunding Series 2010A, 6.000%, 7/01/38   7/20 at 100.00 BBB+ 3,415,062
75   Johnson City Health and Educational Facilities Board, Tennessee, Hospital Revenue Refunding and Improvement Bonds, Johnson City Medical Center, Series 1998C, 5.125%, 7/01/25 (Pre-refunded 7/01/23)  –  NPFG Insured   7/23 at 100.00 Baa1 (4) 75,247
17,000   Knox County Health, Educational and Housing Facility Board, Tennessee, Hospital Revenue Bonds, Covenant Health, Refunding Series 2016A, 5.000%, 1/01/47   1/27 at 100.00 A 19,015,690
    Metropolitan Government of Nashville-Davidson County Health and Educational Facilities Board, Tennessee, Revenue Bonds, Belmont University Project, Series 2012:        
3,000   5.000%, 11/01/23   11/21 at 100.00 Baa1 3,340,860
3,200   5.000%, 11/01/24   11/21 at 100.00 Baa1 3,566,304
3,400   5.000%, 11/01/25   11/21 at 100.00 Baa1 3,764,888
535   Metropolitan Government of Nashville-Davidson County Health and Educational Facilities Board, Tennessee, Revenue Bonds, Vanderbilt University Medical Center, Series 2016A, 5.000%, 7/01/46   7/26 at 100.00 A3 601,228
10,000   Metropolitan Government of Nashville-Davidson County Health and Educational Facilities Board, Tennessee, Revenue Bonds, Vanderbilt University, Refunding Series 2009B, 5.000%, 10/01/39 (Pre-refunded 10/01/19)   10/19 at 100.00 AA (4) 10,861,800


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Tennessee (continued)        
$ 4,000   The Tennessee Energy Acquisition Corporation, Gas Revenue Bonds, Series 2006A, 5.250%, 9/01/26   No Opt. Call BBB+ $ 4,802,400
53,795   Total Tennessee       59,450,361
    Texas – 16.2% (10.6% of Total Investments)        
3,040   Austin, Texas, Airport System Revenue Bonds, Series 2015, 5.000%, 11/15/44 (Alternative Minimum Tax)   11/24 at 100.00 A 3,381,605
4,500   Austin, Texas, Airport System Revenue Bonds, Series 2017B, 5.000%, 11/15/46 (Alternative Minimum Tax)   11/26 at 100.00 A 5,097,870
13,705   Austin, Texas, Electric Utility System Revenue Bonds, Refunding Series 2015A, 5.000%, 11/15/45 (UB) (5)   11/25 at 100.00 Aa3 15,805,976
5,000   Austin, Texas, Water and Wastewater System Revenue Bonds, Refunding Series 2013A, 5.000%, 11/15/43   5/23 at 100.00 AA- 5,685,500
1,000   Bell County Water Control Improvement District 1, Texas, Water Revenue Bonds, Series 2014, 5.000%, 7/10/37  –  BAM Insured   7/23 at 100.00 A2 1,114,710
15,000   Board of Regents of the University of Texas System, Revenue Financing System Bonds, Refunding Series 2016F, 5.000%, 8/15/47 (UB)   No Opt. Call Aaa 19,999,050
3,225   Brazos River Authority, Texas, Pollution Control Revenue Bonds, TXU Energy Company LLC Project, Series 2003C, 6.750%, 10/01/38 (Alternative Minimum Tax) (8)   10/17 at 100.00 N/R 32
4,670   Brazos River Authority, Texas, Pollution Control Revenue Refunding Bonds, TXU Electric Company, Series 1999C, 7.700%, 3/01/32 (Alternative Minimum Tax) (8)   10/17 at 100.00 N/R 47
    Bryan, Brazos County, Texas, Electric System Revenue Bonds, Refunding Series 2012:        
1,000   5.000%, 7/01/28   7/22 at 100.00 A2 1,136,290
1,000   5.000%, 7/01/29   7/22 at 100.00 A2 1,131,290
5,500   Capital Area Cultural Education Facilities Finance Corporation, Texas, Revenue Bonds, The Roman Catholic Diocese of Austin, Series 2005B. Remarketed, 6.125%, 4/01/45   4/20 at 100.00 Baa1 6,067,985
    Central Texas Regional Mobility Authority, Revenue Bonds, Refunding Senior Lien Series 2013A:        
765   5.000%, 1/01/43   1/23 at 100.00 Baa2 834,355
1,100   5.000%, 1/01/43  –  AGM Insured   1/23 at 100.00 A2 1,203,158
1,250   Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien Series 2010, 5.750%, 1/01/25 (Pre-refunded 1/01/20)   1/20 at 100.00 Baa2 (4) 1,388,388
    Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien Series 2011:        
1,000   6.000%, 1/01/41 (Pre-refunded 1/01/21)   1/21 at 100.00 Baa2 (4) 1,161,840
3,380   6.250%, 1/01/46 (Pre-refunded 1/01/21)   1/21 at 100.00 Baa2 (4) 3,955,276
    Central Texas Regional Mobility Authority, Revenue Bonds, Senior Lien, Series 2015A:        
2,600   5.000%, 1/01/35   7/25 at 100.00 Baa2 2,961,010
3,035   5.000%, 1/01/45   7/25 at 100.00 Baa2 3,401,901
1,000   Clifton Higher Education Finance Corporation, Texas, Education Revenue Bonds, Idea Public Schools, Series 2013, 6.000%, 8/15/43   8/23 at 100.00 BBB 1,152,040
2,500   Colorado River Municipal Water District, Texas, Water System Revenue Bonds, Series 2011, 5.000%, 1/01/36   1/21 at 100.00 A1 2,760,400
2,770   Dallas-Fort Worth International Airport, Texas, Joint Revenue Bonds, Improvement Series 2012D, 5.000%, 11/01/38 (Alternative Minimum Tax)   11/21 at 100.00 A 3,105,059
8,100   Dallas-Fort Worth International Airport, Texas, Joint Revenue Bonds, Improvement Series 2013C, 5.125%, 11/01/43 (Alternative Minimum Tax)   11/22 at 100.00 A 8,864,073


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
$ 3,500   Dallas-Fort Worth International Airport, Texas, Joint Revenue Bonds, Refunding Series 2010A, 5.000%, 11/01/42   11/20 at 100.00 A $3,855,215
10,000   Dallas-Fort Worth International Airport, Texas, Joint Revenue Bonds, Refunding Series 2012E, 5.000%, 11/01/42 (Alternative Minimum Tax)   11/21 at 100.00 A 11,140,500
9,000   Dallas-Fort Worth International Airport, Texas, Joint Revenue Bonds, Series 2012H, 5.000%, 11/01/42 (Alternative Minimum Tax)   11/21 at 100.00 A 10,026,450
200   Decatur Hospital Authority, Texas, Revenue Bonds, Wise Regional Health System, Series 2014A, 5.250%, 9/01/44   9/24 at 100.00 BB+ 212,178
6,090   Grand Parkway Transportation Corporation, Texas, System Toll Revenue Bonds, First Tier Series 2013A, 5.125%, 10/01/43   10/23 at 100.00 BBB 6,829,752
9,120   Grand Parkway Transportation Corporation, Texas, System Toll Revenue Bonds, Subordinate Lien Series 2013B, 5.000%, 4/01/53   10/23 at 100.00 AA 10,417,958
4,105   Grand Parkway Transportation Corporation, Texas, System Toll Revenue Bonds, Tender Option Bond Trust 2015-XF0228, 15.489%, 4/01/53 (IF)   10/23 at 100.00 AA 6,442,551
2,140   Grapevine-Colleyville Independent School District, Tarrant and Dallas Counties, Texas, General Obligation Bonds, Capital Appreciation, Refunding Series 1998, 0.000%, 8/15/25   No Opt. Call AAA 1,808,172
2,960   Gulf Coast Industrial Development Authority, Texas, Solid Waste Disposal Revenue Bonds, Citgo Petroleum Corporation Project, Series 1995, 4.875%, 5/01/25 (Alternative Minimum Tax)   10/22 at 100.00 B3 3,098,380
    Harris County Cultural Education Facilities Finance Corporation, Texas, Revenue Bonds, Houston Methodist Hospital System, Series 2015:        
1,895   4.000%, 12/01/45   6/25 at 100.00 AA 1,954,105
3,480   5.000%, 12/01/45   6/25 at 100.00 AA 3,867,533
1,615   Harris County Cultural Education Facilities Finance Corporation, Texas, Revenue Refunding Bonds, Young Men's Christian Association of the Greater Houston Area, Series 2013A, 5.000%, 6/01/28   6/23 at 100.00 Baa3 1,786,077
500   Harris County Metropolitan Transit Authority, Texas, Sales and Use Tax Revenue Bonds, Contractual Obligation Series 2014, 5.000%, 11/01/29   11/24 at 100.00 Aa2 591,365
    Harris County-Houston Sports Authority, Texas, Revenue Bonds, Capital Appreciation Refunding Senior Lien Series 2014A:        
510   0.000%, 11/15/41  –  AGM Insured   11/31 at 62.66 A2 179,933
1,020   0.000%, 11/15/42  –  AGM Insured   11/31 at 59.73 A2 342,108
1,255   0.000%, 11/15/43  –  AGM Insured   11/31 at 56.93 A2 400,069
3,305   0.000%, 11/15/44  –  AGM Insured   11/31 at 54.25 A2 1,002,539
4,460   0.000%, 11/15/45  –  AGM Insured   11/31 at 51.48 A2 1,281,893
6,500   0.000%, 11/15/47  –  AGM Insured   11/31 at 46.45 A2 1,681,225
    Harris County-Houston Sports Authority, Texas, Revenue Bonds, Junior Lien Series 2001H:        
150   0.000%, 11/15/24  –  NPFG Insured   No Opt. Call A3 117,825
4,440   0.000%, 11/15/29  –  NPFG Insured   No Opt. Call A3 2,775,089
730   0.000%, 11/15/30  –  NPFG Insured   No Opt. Call A3 434,445
7,570   0.000%, 11/15/31  –  NPFG Insured   No Opt. Call A3 4,298,549
600   Harris County-Houston Sports Authority, Texas, Revenue Bonds, Refunding Second Lien Series 2014C, 5.000%, 11/15/33   11/24 at 100.00 BBB 679,902
1,000   Harris County-Houston Sports Authority, Texas, Revenue Bonds, Refunding Senior Lien Series 2014A, 5.000%, 11/15/30   11/24 at 100.00 A- 1,155,610


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
$ 2,305   Harris County-Houston Sports Authority, Texas, Special Revenue Bonds, Refunding Senior Lien Series 2001A, 0.000%, 11/15/20  –  NPFG Insured   No Opt. Call A2 $2,179,470
3,000   Houston, Texas, Airport System Revenue Bonds, Refunding Subordinate Lien Series 2007B, 5.000%, 7/01/25  –  NPFG Insured   10/17 at 100.00 A3 3,009,360
380   Houston, Texas, Airport System Special Facilities Revenue Bonds, United Airlines, Inc. Terminal E Project, Refunding Series 2014, 5.000%, 7/01/29 (Alternative Minimum Tax)   7/24 at 100.00 BB- 409,290
    Houston, Texas, First Lien Combined Utility System Revenue Bonds, Refunding Series 2009A:        
210   5.125%, 11/15/32  –  AGC Insured   5/19 at 100.00 AA 224,690
3,790   5.125%, 11/15/32 (Pre-refunded 5/15/19)  –  AGC Insured   5/19 at 100.00 AA (4) 4,071,028
3,500   Houston, Texas, First Lien Combined Utility System Revenue Bonds, Refunding Series 2011A, 5.250%, 11/15/30   11/20 at 100.00 AA 3,965,570
4,000   Houston, Texas, First Lien Combined Utility System Revenue Bonds, Series 2011D, 5.000%, 11/15/40   11/21 at 100.00 AA 4,508,560
225   Houston, Texas, General Obligation Bonds, Refunding Public Improvement Series 2007A, 5.000%, 3/01/32  –  NPFG Insured   10/17 at 100.00 A3 225,653
    Houston, Texas, Hotel Occupancy Tax and Special Revenue Bonds, Convention and Entertainment Project, Series 2001B:        
3,250   0.000%, 9/01/25  –  AMBAC Insured   No Opt. Call A2 2,617,940
4,130   0.000%, 9/01/26  –  AMBAC Insured   No Opt. Call A2 3,197,652
3,130   0.000%, 9/01/30  –  AMBAC Insured   No Opt. Call A- 2,017,942
12,030   0.000%, 9/01/31  –  AMBAC Insured   No Opt. Call A- 7,369,578
    Houston, Texas, Water and Sewerage System Revenue Bonds, Refunding Junior Lien Series 1998A:        
4,680   0.000%, 12/01/22  –  AGM Insured   No Opt. Call AA+ 4,266,756
12,030   0.000%, 12/01/22  –  AGM Insured (ETM)   No Opt. Call Aa1 (4) 11,078,547
1,000   Humble Independent School District, Harris County, Texas, General Obligation Bonds, Series 2008A, 5.250%, 2/15/22 (Pre-refunded 2/15/18)  –  AGC Insured   2/18 at 100.00 AA (4) 1,023,480
    Leander Independent School District, Williamson and Travis Counties, Texas, General Obligation Bonds, Refunding Series 2015A:        
8,000   4.000%, 8/15/37   8/25 at 100.00 AAA 8,564,640
2,275   5.000%, 8/15/40   8/25 at 100.00 AAA 2,651,717
4,800   Love Field Airport Modernization Corporation, Texas, Special Facilities Revenue Bonds, Southwest Airlines Company, Series 2010, 5.250%, 11/01/40   11/20 at 100.00 BBB 5,289,168
6,500   Lower Colorado River Authority, Texas, Transmission Contract Revenue Bonds, LCRA Transmission Services Corporation Project, Refunding Series 2016, 5.000%, 5/15/46   5/26 at 100.00 A 7,408,570
9,180   Matagorda County Navigation District 1, Texas, Collateralized Revenue Refunding Bonds, Houston Light and Power Company, Series 1997, 5.125%, 11/01/28  –  AMBAC Insured (Alternative Minimum Tax)   No Opt. Call A 11,131,484
2,000   McCamey County Hospital District, Texas, General Obligation Bonds, Series 2013, 6.125%, 12/01/38   12/25 at 100.00 Ba2 2,215,560
1,210   Mission Economic Development Corporation, Texas, Revenue Bonds, Natgasoline Project, Series 2016B, 5.750%, 10/01/31 (Alternative Minimum Tax)   10/18 at 103.00 BB- 1,267,548
1,735   New Hope Cultural Education Facilities Finance Corporation, Texas, Student Housing Revenue Bonds, CHF-Collegiate Housing Foundation - College Station I LLC - Texas A&M University Project, Series 2014A, 5.000%, 4/01/46  –  AGM Insured   4/24 at 100.00 A2 1,886,865


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
    North Texas Tollway Authority, Special Projects System Revenue Bonds, Convertible Capital Appreciation Series 2011C:        
$ 4,030   0.000%, 9/01/43 (7)   9/31 at 100.00 AA $4,347,242
8,470   0.000%, 9/01/45 (7)   9/31 at 100.00 AA 9,927,179
2,000   North Texas Tollway Authority, Special Projects System Revenue Bonds, Series 2011A, 5.500%, 9/01/41 (UB) (5)   9/21 at 100.00 AA 2,325,180
    North Texas Tollway Authority, System Revenue Bonds, First Tier Series 2009A:        
205   6.250%, 1/01/39   1/19 at 100.00 A 218,596
895   6.250%, 1/01/39 (Pre-refunded 1/01/19)   1/19 at 100.00 N/R (4) 961,651
7,000   North Texas Tollway Authority, System Revenue Bonds, Refunding First Tier Capital Appreciation Series 2008I, 6.500%, 1/01/43   1/25 at 100.00 A 8,795,570
    North Texas Tollway Authority, System Revenue Bonds, Refunding First Tier, Series 2008A:        
145   5.750%, 1/01/40  –  AGC Insured   1/18 at 100.00 A1 147,652
270   5.750%, 1/01/40  –  BHAC Insured   1/18 at 100.00 A1 274,938
415   5.750%, 1/01/40 (Pre-refunded 1/01/18)  –  AGC Insured   1/18 at 100.00 A1 (4) 423,462
540   5.750%, 1/01/40 (Pre-refunded 1/01/18)  –  AGC Insured   1/18 at 100.00 A1 (4) 551,011
835   5.750%, 1/01/40 (Pre-refunded 1/01/18)  –  BHAC Insured   1/18 at 100.00 A1 (4) 852,026
1,120   5.750%, 1/01/40 (Pre-refunded 1/01/18)   1/18 at 100.00 AA+ (4) 1,142,837
10,260   North Texas Tollway Authority, System Revenue Bonds, Refunding First Tier, Series 2015B, 5.000%, 1/01/40   1/23 at 100.00 A 11,477,144
10,625   North Texas Tollway Authority, System Revenue Bonds, Refunding Second Tier, Series 2008F, 5.750%, 1/01/38 (Pre-refunded 1/01/18)   1/18 at 100.00 A- (4) 10,841,644
    North Texas Tollway Authority, System Revenue Bonds, Refunding Second Tier, Series 2015A:        
13,355   5.000%, 1/01/33   1/25 at 100.00 A- 15,324,595
1,000   5.000%, 1/01/34   1/25 at 100.00 A- 1,143,870
3,500   Plano Independent School District, Collin County, Texas, General Obligation Bonds, Series 2008A, 5.250%, 2/15/34 (Pre-refunded 2/15/18)   2/18 at 100.00 AA+ (4) 3,583,125
1,000   Round Rock Independent School District, Williamson and Travis Counties, Texas, General Obligation Bonds, School Building Series 2009, 5.000%, 8/01/27   8/18 at 100.00 AA 1,041,530
4,000   Sabine River Authority, Texas, Pollution Control Revenue Bonds, TXU Electric Company, Series 2001C, 5.200%, 5/01/28 (8)   10/17 at 100.00 N/R 40
4,375   Tarrant County Cultural & Educational Facilities Financing Corporation, Texas, Revenue Bonds, Tender Option Bond Trust 2016-XF0389, 8.391%, 11/15/47 (IF) (5)   11/17 at 100.00 AA 4,456,812
1,300   Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue Bonds, Hendrick Medical Center, Series 2009B, 5.250%, 9/01/26  –  AGC Insured   9/19 at 100.00 A2 1,393,028
    Tarrant County Cultural Education Facilities Finance Corporation, Texas, Hospital Revenue Bonds, Scott & White Healthcare Project, Series 2010:        
355   5.500%, 8/15/45 (Pre-refunded 8/15/20)   8/20 at 100.00 N/R (4) 402,268
4,445   5.500%, 8/15/45 (Pre-refunded 8/15/20)   8/20 at 100.00 AA- (4) 5,036,852
2,000   Tarrant County Cultural Education Facilities Finance Corporation, Texas, Revenue Bonds, Texas Health Resources System, Series 2016A, 5.000%, 2/15/41   8/26 at 100.00 AA 2,314,600
650   Texas Municipal Gas Acquisition and Supply Corporation I, Gas Supply Revenue Bonds, Senior Lien Series 2008D, 6.250%, 12/15/26   No Opt. Call BBB+ 790,589


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
    Texas Municipal Gas Acquisition and Supply Corporation III, Gas Supply Revenue Bonds, Series 2012:        
$ 5,910   5.000%, 12/15/23   12/22 at 100.00 BBB $6,818,485
2,050   5.000%, 12/15/26   12/22 at 100.00 BBB 2,314,880
1,000   5.000%, 12/15/27   12/22 at 100.00 BBB 1,123,850
12,745   5.000%, 12/15/29   12/22 at 100.00 BBB 14,208,126
2,000   5.000%, 12/15/31   12/22 at 100.00 BBB 2,209,580
1,620   Texas Private Activity Bond Surface Transportation Corporation, Revenue Bonds, NTE Mobility Partners LLC North Tarrant Express Managed Lanes Project, Senior Lien Series 2009, 6.875%, 12/31/39   12/19 at 100.00 BBB- 1,814,400
19,735   Texas Private Activity Bond Surface Transportation Corporation, Senior Lien Revenue Bonds, Blueridge Transportation Group, LLC SH 288 Toll Lanes Project, Series 2016, 5.000%, 12/31/50 (Alternative Minimum Tax)   12/25 at 100.00 Baa3 21,612,785
    Texas Private Activity Bond Surface Transportation Corporation, Senior Lien Revenue Bonds, LBJ Infrastructure Group LLC IH-635 Managed Lanes Project, Series 2010:        
1,000   7.000%, 6/30/34   6/20 at 100.00 Baa3 1,133,490
1,000   7.000%, 6/30/40   6/20 at 100.00 Baa3 1,138,240
    Texas Private Activity Bond Surface Transportation Corporation, Senior Lien Revenue Bonds, NTE Mobility Partners Segments 3 Segments 3A & 3B Facility, Series 2013:        
1,335   7.000%, 12/31/38 (Alternative Minimum Tax)   9/23 at 100.00 BBB- 1,550,015
4,040   6.750%, 6/30/43 (Alternative Minimum Tax)   9/23 at 100.00 BBB- 4,690,076
3,335   Texas State, General Obligation Bonds, Water Financial Assistance, Tender Option Bond Trust 2015-XF0075, 12.123%, 8/01/39 (IF)   8/19 at 100.00 Aaa 4,058,695
9,430   Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, First Tier Refunding Series 2012A, 5.000%, 8/15/41   8/22 at 100.00 A- 10,541,891
    Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, First Tier Refunding Series 2015B:        
8,335   0.000%, 8/15/36   8/24 at 59.60 A- 3,770,837
10,960   5.000%, 8/15/37   8/24 at 100.00 A- 12,397,185
    Texas Transportation Commission, Central Texas Turnpike System Revenue Bonds, Second Tier Refunding Series 2015C:        
2,100   5.000%, 8/15/33   8/24 at 100.00 BBB 2,365,398
15,750   5.000%, 8/15/42   8/24 at 100.00 BBB 17,550,225
    Texas Turnpike Authority, Central Texas Turnpike System Revenue Bonds, First Tier Series 2002A:        
2,285   0.000%, 8/15/21  –  AMBAC Insured (ETM)   No Opt. Call A3 (4) 2,162,410
7,715   0.000%, 8/15/21  –  AMBAC Insured   No Opt. Call A- 7,225,406
2,020   0.000%, 8/15/23  –  AMBAC Insured (ETM)   No Opt. Call A3 (4) 1,827,999
9,980   0.000%, 8/15/23  –  AMBAC Insured   No Opt. Call A- 8,860,144
3,830   0.000%, 8/15/24  –  AMBAC Insured (ETM)   No Opt. Call A3 (4) 3,362,740
21,170   0.000%, 8/15/24  –  AMBAC Insured   No Opt. Call A- 18,076,216
    Travis County Health Facilities Development Corporation, Texas, Revenue Bonds, Westminster Manor, Series 2010:        
220   7.000%, 11/01/30   11/20 at 100.00 BBB 248,780
905   7.000%, 11/01/30 (Pre-refunded 11/01/20)   11/20 at 100.00 N/R (4) 1,072,380


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Texas (continued)        
$ 605   Winter Garden Housing Finance Corporation, Texas, GNMA/FNMA Mortgage-Backed Securities Program Single Family Mortgage Revenue Bonds, Series 1994, 6.950%, 10/01/27 (Alternative Minimum Tax)   10/17 at 100.00 CC $606,706
    Wylie Independent School District, Collin County, Texas, General Obligation Bonds, School Building Series 2010:        
5,165   0.000%, 8/15/34   No Opt. Call AAA 2,318,517
6,135   0.000%, 8/15/37   No Opt. Call AAA 2,307,496
509,810   Total Texas       502,308,739
    Utah – 1.7% (1.1% of Total Investments)        
1,000   Central Utah Water Conservancy District, Water Revenue Bonds, Series 2012C, 5.000%, 10/01/42   10/22 at 100.00 AA+ 1,141,520
26,000   Salt Lake City, Utah, Airport Revenue Bonds, International Airport Series 2017A, 5.000%, 7/01/47 (Alternative Minimum Tax)   7/27 at 100.00 A2 29,818,360
2,000   Utah County, Utah, Hospital Revenue Bonds, IHC Health Services Inc., Series 2012, 5.000%, 5/15/43   5/21 at 100.00 AA+ 2,207,820
5,795   Utah State Charter School Finance Authority, Charter School Revenue Bonds, Hawthorn Academy Project, Series 2016, 5.000%, 10/15/46   4/26 at 100.00 AA 6,509,234
4,110   Utah Transit Authority, Sales Tax Revenue Bonds, Refunding Series 2012, 5.000%, 6/15/42   6/22 at 100.00 A+ 4,623,668
    Utah Transit Authority, Sales Tax Revenue Bonds, Series 2008A:        
3,000   5.000%, 6/15/36 (Pre-refunded 6/15/18)  –  AGM Insured   6/18 at 100.00 Aa2 (4) 3,107,340
4,500   5.250%, 6/15/38 (Pre-refunded 6/15/18)   6/18 at 100.00 Aa2 (4) 4,670,730
46,405   Total Utah       52,078,672
    Virginia – 2.2% (1.4% of Total Investments)        
1,000   Amherst Industrial Development Authority, Virginia, Revenue Bonds, Sweet Briar College, Series 2006, 5.000%, 9/01/26   10/17 at 100.00 B 962,500
515   Chesapeake, Virginia, Transportation System Senior Toll Road Revenue Bonds, Capital Appreciation Series 2012B, 0.000%, 7/15/40 (7)   7/28 at 100.00 BBB 422,794
3,000   Fairfax County Economic Development Authority, Virginia, Residential Care Facilities Mortgage Revenue Bonds, Goodwin House, Inc., Series 2007A, 5.125%, 10/01/42 (Pre-refunded 10/01/17)   10/17 at 100.00 BBB (4) 3,021,870
1,000   Fairfax County Redevelopment and Housing Authority, Virginia, Multifamily Housing Revenue Bonds, FHA-Insured Mortgage - Cedar Ridge Project, Series 2007, 4.850%, 10/01/48 (Alternative Minimum Tax)   10/17 at 100.00 AA+ 1,001,210
2,400   Henrico County Economic Development Authority, Virginia, Revenue Bonds, Bon Secours Health System Obligated Group, Series 2013, 5.000%, 11/01/30   11/22 at 100.00 A 2,690,664
4,500   Metropolitan Washington Airports Authority, Virginia, Airport System Revenue Bonds, Refunding Series 2013A, 5.000%, 10/01/30 (Alternative Minimum Tax)   10/23 at 100.00 AA- 5,147,370
5,000   Metropolitan Washington Airports Authority, Virginia, Airport System Revenue Bonds, Series 2010A, 5.000%, 10/01/39   10/20 at 100.00 AA- 5,510,950
5,625   Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Revenue Bonds, Dulles Metrorail & Capital Improvement Project, Refunding Second Senior Lien Series 2014A, 5.000%, 10/01/53   4/22 at 100.00 BBB+ 6,021,225
2,000   Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Second Senior Lien Revenue Bonds, Series 2009B, 0.000%, 10/01/36  –  AGC Insured   No Opt. Call A3 972,700
5,000   Metropolitan Washington Airports Authority, Virginia, Dulles Toll Road Second Senior Lien Revenue Bonds, Series 2009C, 6.500%, 10/01/41  –  AGC Insured   10/26 at 100.00 A3 6,498,100


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Virginia (continued)        
    Prince William County Industrial Development Authority, Virginia, Health Care Facilities Revenue Bonds, Novant Health Obligated Group-Prince William Hospital, Refunding Series 2013B:        
$ 2,000   4.000%, 11/01/33   11/22 at 100.00 A+ $2,097,400
3,000   5.000%, 11/01/46   11/22 at 100.00 A+ 3,263,460
6,000   Tobacco Settlement Financing Corporation of Virginia, Tobacco Settlement Asset Backed Bonds, Series 2007B1, 5.000%, 6/01/47   10/17 at 100.00 B- 5,734,740
4,535   Virginia Small Business Financing Authority, Senior Lien Revenue Bonds, 95 Express Lanes LLC Project, Series 2012, 5.000%, 1/01/40 (Alternative Minimum Tax)   1/22 at 100.00 BBB 4,903,151
    Virginia Small Business Financing Authority, Senior Lien Revenue Bonds, Elizabeth River Crossing, Opco LLC Project, Series 2012:        
3,670   6.000%, 1/01/37 (Alternative Minimum Tax)   7/22 at 100.00 BBB 4,166,111
14,930   5.500%, 1/01/42 (Alternative Minimum Tax)   7/22 at 100.00 BBB 16,537,663
64,175   Total Virginia       68,951,908
    Washington – 4.5% (3.0% of Total Investments)        
7,000   Central Puget Sound Regional Transit Authority, Washington, Sales Tax and Motor Vehicle Excise Tax Bonds, Green Series 2016S-1, 5.000%, 11/01/41   11/26 at 100.00 Aa1 8,218,980
11,345   Chelan County Public Utility District 1, Washington, Columbia River-Rock Island Hydro-Electric System Revenue Refunding Bonds, Series 1997A, 0.000%, 6/01/19  –  NPFG Insured   No Opt. Call Aa3 11,080,661
2,000   Energy Northwest, Washington, Electric Revenue Bonds, Columbia Generating Station, Refunding Series 2014A, 5.000%, 7/01/40   7/24 at 100.00 AA- 2,290,440
3,750   FYI Properties, Washington, Lease Revenue Bonds, Washington State Department of Information Services Project, Series 2009, 5.500%, 6/01/39 (UB) (5)   6/19 at 100.00 AA 4,015,350
2,375   Grant County Public Utility District 2, Washington, Revenue Bonds, Priest Rapids Hydroelectric Project, Refunding Series 2015A, 5.000%, 1/01/41   1/26 at 100.00 Aa3 2,732,604
2,270   Port Everett, Washington, Revenue Bonds, Refunding Series 2016, 5.000%, 12/01/46   6/26 at 100.00 A1 2,611,363
5,000   Port of Seattle, Washington, Revenue Bonds, Intermediate Lien Series 2017C, 5.000%, 5/01/42 (Alternative Minimum Tax) (WI/DD, Settling 8/22/17)   5/27 at 100.00 A1 5,744,650
10,000   Spokane Public Facilities District, Washington, Hotel, Motel, and Sales Use Tax Revenue Bonds, Series 2013A, 5.000%, 5/01/43   6/23 at 100.00 A2 10,931,000
5,195   Washington Health Care Facilities Authority, Revenue Bonds, Kadlec Regional Medical Center, Series 2010, 5.500%, 12/01/39 (Pre-refunded 12/01/20)   12/20 at 100.00 N/R (4) 5,940,430
1,590   Washington Health Care Facilities Authority, Revenue Bonds, Kadlec Regional Medical Center, Series 2012, 5.000%, 12/01/42 (Pre-refunded 12/01/21)   12/21 at 100.00 N/R (4) 1,847,644
4,000   Washington Health Care Facilities Authority, Revenue Bonds, Providence Health & Services, Refunding Series 2012A, 5.000%, 10/01/32   10/22 at 100.00 AA- 4,483,800
1,000   Washington Health Care Facilities Authority, Revenue Bonds, Seattle Children's Hospital, Series 2012A, 5.000%, 10/01/42   10/22 at 100.00 Aa2 1,113,760
11,500   Washington Health Care Facilities Authority, Revenue Bonds, Seattle Children's Hospital, Series 2015A, 5.000%, 10/01/45 (UB)   4/25 at 100.00 Aa2 12,972,000
    Washington State Health Care Facilities Authority, Revenue Bonds, Central Washington Health Services Association, Series 2009:        
845   6.250%, 7/01/24   7/19 at 100.00 Baa1 914,848
1,155   6.250%, 7/01/24 (Pre-refunded 7/01/19)   7/19 at 100.00 N/R (4) 1,270,396


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Washington (continued)        
$ 4,000   Washington State Health Care Facilities Authority, Revenue Bonds, Fred Hutchinson Cancer Research Center, Series 2009A, 6.000%, 1/01/33 (Pre-refunded 7/01/19)   7/19 at 100.00 A3 (4) $4,375,080
3,500   Washington State Health Care Facilities Authority, Revenue Bonds, Northwest Hospital and Medical Center of Seattle, Series 2007, 5.700%, 12/01/32 (Pre-refunded 12/01/17)   12/17 at 100.00 N/R (4) 3,557,575
1,935   Washington State Health Care Facilities Authority, Revenue Bonds, Virginia Mason Medical Center, Series 2007B, 5.750%, 8/15/37  –  ACA Insured   8/17 at 100.00 BBB 1,940,902
320   Washington State Housing Finance Commission, Revenue Bonds, Riverview Retirement Community, Refunding Series 2012, 5.000%, 1/01/48   1/23 at 100.00 BBB- 326,832
6,480   Washington State, Motor Vehicle Fuel Tax General Obligation Bonds, Series 2002-03C, 0.000%, 6/01/24  –  NPFG Insured   No Opt. Call AA+ 5,716,073
11,050   Washington, General Obligation Bonds, Series 2000S-5, 0.000%, 1/01/20  –  FGIC Insured   No Opt. Call AA+ 10,753,197
3,350   Washington, General Obligation Compound Interest Bonds, Series 1999S-2, 0.000%, 1/01/18  –  AGM Insured   No Opt. Call AA+ 3,338,040
    Washington, General Obligation Compound Interest Bonds, Series 1999S-3:        
17,650   0.000%, 1/01/20   No Opt. Call AA+ 17,175,921
18,470   0.000%, 1/01/21   No Opt. Call AA+ 17,706,081
135,780   Total Washington       141,057,627
    West Virginia – 0.4% (0.3% of Total Investments)        
1,965   West Virginia Hospital Finance Authority, Hospital Revenue Bonds, Charleston Area Medical Center, Series 2009A, 5.625%, 9/01/32   9/19 at 100.00 Baa1 2,087,616
1,000   West Virginia Hospital Finance Authority, Hospital Revenue Bonds, Thomas Health System, Inc., Series 2008, 6.500%, 10/01/38   10/18 at 100.00 N/R 1,021,950
7,000   West Virginia Hospital Finance Authority, Hospital Revenue Bonds, West Virginia United Health System Obligated Group, Refunding & Improvement Series 2013A, 5.500%, 6/01/44   6/23 at 100.00 A 7,925,820
2,000   West Virginia Hospital Finance Authority, Revenue Bonds, West Virginia University Health System Obligated Group, Improvement Series 2017A, 5.000%, 6/01/42   6/27 at 100.00 A 2,251,220
11,965   Total West Virginia       13,286,606
    Wisconsin – 1.6% (1.1% of Total Investments)        
2,230   Monroe Redevelopment Authority, Wisconsin, Development Revenue Bonds, The Monroe Clinic, Inc., Series 2009, 5.875%, 2/15/39 (Pre-refunded 2/15/19)   2/19 at 100.00 A3 (4) 2,397,919
880   Public Finance Authority of Wisconsin, Exempt Facilities Revenue Bonds, National Gypsum Company Project, Refunding Series 2014, 5.250%, 4/01/30 (Alternative Minimum Tax)   11/24 at 100.00 N/R 943,149
4,400   Public Finance Authority of Wisconsin, Solid Waste Disposal Revenue Bonds, Waste Management Inc., Refunding Series 2016A-2, 2.875%, 5/01/27 (Alternative Minimum Tax)   5/26 at 100.00 A- 4,392,080
5,000   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Agnesian HealthCare, Inc., Series 2013B, 5.000%, 7/01/36   7/23 at 100.00 A 5,541,200
410   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Bellin Memorial Hospital Inc., Series 2003, 5.500%, 2/15/19  –  AMBAC Insured   No Opt. Call A2 421,332
1,035   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Beloit Health System, Inc., Series 2010B, 5.125%, 4/01/36   4/20 at 100.00 A- 1,087,123
1,685   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Beloit Health System, Inc., Series 2016, 4.000%, 7/01/46   7/26 at 100.00 A- 1,710,241


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    Wisconsin (continued)        
$ 4,330   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Childrens Hospital of Wisconsin Inc., Series 2008B, 5.500%, 8/15/29   2/20 at 100.00 Aa3 $4,709,914
4,995   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Franciscan Sisters of Christian Charity HealthCare Ministry, Series 2007, 5.000%, 9/01/33   9/17 at 100.00 BBB+ 5,012,583
2,750   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Gundersen Lutheran, Series 2011A, 5.250%, 10/15/39   10/21 at 100.00 A+ 3,021,178
1,250   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Marshfield Clinic, Series 2012B, 5.000%, 2/15/32   2/22 at 100.00 A- 1,354,775
6,000   Wisconsin Health and Educational Facilities Authority, Revenue Bonds, Marshfield Clinic, Series 2016A, 5.000%, 2/15/46   2/26 at 100.00 A- 6,621,960
    Wisconsin State, General Fund Annual Appropriation Revenue Bonds, Refunding Series 2009A:        
6,745   6.000%, 5/01/36 (Pre-refunded 5/01/19)   5/19 at 100.00 AA- (4) 7,338,155
5,100   6.250%, 5/01/37 (Pre-refunded 5/01/19)   5/19 at 100.00 AA- (4) 5,570,577
46,810   Total Wisconsin       50,122,186
$ 4,684,781   Total Municipal Bonds (cost $4,303,243,849)       4,675,619,785
    
Principal Amount (000)   Description (1) Coupon Maturity Ratings (3) Value
    CORPORATE BONDS – 0.0% (0.0% of Total Investments)        
    Transportation – 0.0% (0.0% of Total Investments)        
$ 755   Las Vegas Monorail Company, Senior Interest Bonds (11), (12) 5.500% 7/15/19 N/R $471,679
204   Las Vegas Monorail Company, Senior Interest Bonds (11), (12) 5.500% 7/15/55 N/R 103,194
$ 959   Total Corporate Bonds (cost $75,140)       574,873
    
Shares   Description (1), (13)       Value
    INVESTMENT COMPANIES – 0.0% (0.0% of Total Investments)        
8,812   BlackRock MuniHoldings Fund Inc.       $158,880
32,524   Invesco Quality Municipal Income Trust       416,958
    Total Investment Companies (cost $530,611)       575,838
    Total Long-Term Investments (cost $4,303,849,600)       4,676,770,496
    


Principal Amount (000)   Description (1)   Optional Call Provisions (2) Ratings (3) Value
    SHORT-TERM INVESTMENTS – 2.5% (1.6% of Total Investments)        
    MUNICIPAL BONDS – 2.5% (1.6% of Total Investments)        
    Illinois – 0.6% (0.4% of Total Investments)        
$ 7,295   Chicago Transit Authority, Illinois, Sales Tax Receipts Revenue Bonds, Variable Rate Demand Obligations, Tender Option Bond Floater Series 2015-XM0053, 1.700%, 12/01/49 (14)   12/24 at 100.00 A-1 $7,295,000
13,065   Will County, Illinois, Environmental Facilities Revenue Bonds, ExxonMobil Project, Variable Rate Demand Obligations, Series 2001, 0.680%, 6/01/26 (Alternative Minimum Tax) (14)   11/17 at 100.00 A-1+ 13,065,000
20,360   Total Illinois       20,360,000
    Texas – 1.9% (1.2% of Total Investments)        
10,100   Harris County Industrial Development Corporation, Texas, Solid Waste Revenue Bond, Exxon Corporation Project, Variable Rate Demand Obligations, Series 1997, 0.580%, 4/01/32 (Alternative Minimum Tax) (14)   10/17 at 100.00 A-1+ 10,100,000
23,055   Lower Neches Valley Authority, Texas, Industrial Development Corporation Exempt Facilities Revenue Bonds, Exxon Mobil Project, Variable Rate Demand Obligations, Series 2001B, 0.680%, 11/01/29 (Alternative Minimum Tax) (14)   10/17 at 100.00 A-1+ 23,055,000
24,900   Gulf Coast Waste Disposal Authority, Texas, Environmental Facilities Revenue Bonds, Exxon Mobil Project, Variable Rate Demand Obligations, Series 2000, 0.680%, 6/01/30 (Alternative Minimum Tax) (14)   10/17 at 100.00 A-1+ 24,900,000
58,055   Total Texas       58,055,000
$ 78,415   Total Short-Term Investments (cost $78,415,000)       78,415,000
    Total Investments (cost $4,382,264,600) – 153.2%       4,755,185,496
    Floating Rate Obligations – (3.9)%       (120,280,000)
    Variable Rate MuniFund Term Preferred Shares, net of deferred offering costs – (30.7)% (15)   (952,461,444)
    Variable Rate Demand Preferred Shares, net of deferred offering costs – (20.3)% (16)       (629,164,599)
    Other Assets Less Liabilities – 1.7%       50,807,388
    Net Assets Applicable to Common Shares – 100%       $ 3,104,086,841
Fair Value Measurements
Fair value is defined as the price that would be received upon selling an investment or transferring a liability in an orderly transaction to an independent buyer in the principal or most advantageous market for the investment. A three-tier hierarchy is used to maximize the use of observable market data and minimize the use of unobservable inputs and to establish classification of fair value measurements for disclosure purposes. Observable inputs reflect the assumptions market participants would use in pricing the asset or liability. Observable inputs are based on market data obtained from sources independent of the reporting entity. Unobservable inputs reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability. Unobservable inputs are based on the best information available in the circumstances. The following is a summary of the three-tiered hierarchy of valuation input levels.
Level 1  – Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities.
Level 2  – Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.).
Level 3  – Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments).


The inputs or methodologies used for valuing securities are not an indication of the risks associated with investing in those securities. The following is a summary of the Fund’s fair value measurements as of the end of the reporting period:
  Level 1 Level 2 Level 3 Total
Long-Term Investments:        
Municipal Bonds $  — $4,675,619,785 $  — $4,675,619,785
Corporate Bonds  —  — 574,873 574,873
Investment Companies 575,838  —  — 575,838
Short-Term Investments:        
Municipal Bonds  — 78,415,000  — 78,415,000
Total $575,838 $4,754,034,785 $574,873 $4,755,185,496
Income Tax Information
The following information is presented on an income tax basis. Differences between amounts for financial statement and federal income tax purposes are primarily due to timing differences in recognizing taxable market discount, timing differences in recognizing certain gains and losses on investment transactions and the treatment of investments in inverse floating rate securities reflected as financing transactions, if any. To the extent that differences arise that are permanent in nature, such amounts are reclassified within the capital accounts on the Statement of Assets and Liabilities presented in the annual report, based on their federal tax basis treatment; temporary differences do not require reclassification. Temporary and permanent differences do not impact the net asset value of the Fund.
As of July 31, 2017, the cost of investments was $4,267,447,992.
Gross unrealized appreciation and gross unrealized depreciation of investments as of July 31, 2017, were as follows:
Gross unrealized:  
Appreciation $393,126,201
Depreciation (25,667,873)
Net unrealized appreciation (depreciation) of investments $367,458,328


(1) All percentages shown in the Portfolio of Investments are based on net assets applicable to common shares unless otherwise noted.  
(2) Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. There may be other call provisions at varying prices at later dates. Certain mortgage-backed securities may be subject to periodic principal paydowns.  
(3) For financial reporting purposes, the ratings disclosed are the lowest of Standard & Poor’s Group (“Standard & Poor’s”), Moody’s Investors Service, Inc. (“Moody’s”) or Fitch, Inc. (“Fitch”) rating. This treatment of split-rated securities may differ from that used for other purposes, such as for Fund investment policies. Ratings below BBB by Standard & Poor’s, Baa by Moody’s or BBB by Fitch are considered to be below investment grade. Holdings designated N/R are not rated by any of these national rating agencies.  
(4) Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency securities, which ensure the timely payment of principal and interest. Certain bonds backed by U.S. Government or agency securities are regarded as having an implied rating equal to the rating of such securities.  
(5) Investment, or portion of investment, has been pledged to collateralize the net payment obligations for investments in inverse floating rate transactions.  
(6) The coupon for this security increased 0.25% effective January 1, 2016 and increased an additional 0.25% effective May 11, 2016.  
(7) Step-up coupon. The rate shown is the coupon as of the end of the reporting period.  
(8) As of, or subsequent to, the end of the reporting period, this security is non-income producing. Non-income producing, in the case of a fixed-income security, generally denotes that the issuer has (1) defaulted on the payment of principal or interest, (2) is under the protection of the Federal Bankruptcy Court or (3) the Fund’s Adviser has concluded that the issue is not likely to meet its future interest payment obligations and has ceased accruing additional income on the Fund’s records.  
(9) On January 7, 2015, the Fund's Adviser determined it was unlikely that this borrower would fulfill its entire obligation on this security, and therefore reduced the security's interest rate of accrual from 7.125% to 5.700% and again on November 11, 2015, further reduced the security's interest rate of accrual from 5.700% to 4.275%.  
(10) On May 7, 2015, the Fund's Adviser determined it was unlikely that this borrower would fulfill its entire obligation on this security, and therefore reduced the security's interest rate of accrual from 5.250% to 2.100%.  
(11) During January 2010, Las Vegas Monorail Company (“Las Vegas Monorail”) filed for federal bankruptcy protection. During March 2012, Las Vegas Monorail emerged from federal bankruptcy with the acceptance of a reorganization plan assigned by the Federal Bankruptcy Court. Under the reorganization plan, the Fund surrendered its Las Vegas Monorail Project Revenue Bonds, First Tier, Series 2000 and in turn received two senior interest corporate bonds: the first with an annual coupon rate of 5.500% maturing on July 15, 2019 and the second with an annual coupon rate of 3.000% (5.500% after December 31, 2015) maturing on July 15, 2055. The Fund was not accruing income for either senior interest corporate bond. On January 18, 2017, the Fund's Adviser determined it was likely that this senior interest corporate bond would fulfill its obligation on the security maturing on July 15, 2019, and therefore began accruing income on the Fund's records.  
(12) Investment valued at fair value using methods determined in good faith by, or at the discretion of, the Board. For fair value measurement disclosure purposes, investment classified as Level 3.  
(13) A copy of the most recent financial statements for these investment companies can be obtained directly from the Securities and Exchange Commission on its website at http://www.sec.gov.  
(14) Investment has a maturity of greater than one year, but has variable rate and/or demand features which qualify it as a short-term investment. The rate disclosed is that in effect at the end of the reporting period. This rate changes periodically based on market conditions or a specified market index.  
(15) Variable Rate MuniFund Term Preferred Shares, net of deferred offering costs as a percentage of Total Investments is 20.0%.  
(16) Variable Rate Demand Preferred Shares, net of deferred offering costs as a percentage of Total Investments is 13.2%.  
(ETM) Escrowed to maturity.  
(IF) Inverse floating rate investment.  
(UB) Underlying bond of an inverse floating rate trust reflected as a financing transaction.  
PIK All or portion of this security is payment-in-kind.  
(WI/DD) Investment, or portion of investment, purchased on a when-issued or delayed delivery basis.  


Item 2. Controls and Procedures.

 

  a. The registrant’s principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant’s disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the “1940 Act”) (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).

 

  b. There were no changes in the registrant’s internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant’s last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 3. Exhibits.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)), exactly as set forth below: See EX-99 CERT attached hereto.

 

 


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

(Registrant)    Nuveen Quality Municipal Income Fund   
By (Signature and Title)    /s/ Gifford R. Zimmerman                                                       
   Gifford R. Zimmerman   
   Vice President and Secretary   

Date: September 29, 2017

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

 

By (Signature and Title)    /s/ Cedric H. Antosiewicz                                                    
   Cedric H. Antosiewicz   
   Chief Administrative Officer (principal executive officer)   
Date: September 29, 2017      
By (Signature and Title)    /s/ Stephen D. Foy                                                    
   Stephen D. Foy   
   Vice President and Controller (principal financial officer)   
Date: September 29, 2017