BLACKROCK MUNI INTERMEDIATE DURATION FUND, INC.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED

MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number: 811-21348

Name of Fund:   BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

Fund Address:    100 Bellevue Parkway, Wilmington, DE 19809

Name and address of agent for service: John M. Perlowski, Chief Executive Officer, BlackRock Muni Intermediate         Duration Fund, Inc., 55 East 52nd Street, New York, NY 10055

Registrant’s telephone number, including area code: (800) 882-0052, Option 4

Date of fiscal year end: 04/30/2019

Date of reporting period: 01/31/2019


Item 1 – Schedule of Investments


Schedule of Investments  (unaudited)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
     Value  

Municipal Bonds — 137.2%

 

Alabama — 0.8%  

City of Birmingham Alabama Special Care Facilities Financing Authority, RB, Children’s Hospital (AGC), 6.00%, 06/01/19(a)

  $ 4,615      $ 4,678,549  
    

 

 

 
Arizona — 4.0%  

Arizona Board of Regents, RB, University of Arizona, 5.00%, 08/01/28

    2,000        2,140,640  

Arizona Health Facilities Authority, Refunding RB, Phoenix Children’s Hospital, Series A, 5.00%, 02/01/30

    2,685        2,878,938  

Arizona Industrial Development Authority, RB, Academies of Math & Science Projects, Series B, 4.25%, 07/01/27(b)

    545        535,157  

City of Phoenix Arizona IDA, RB, Facility, Legacy Traditional Schools Project,
Series A, 5.75%, 07/01/24(b)

    750        797,243  

City of Phoenix Arizona IDA, Refunding RB, Downtown Phoenix Student Housing,
Series A:

    

5.00%, 07/01/25

    300        336,408  

5.00%, 07/01/29

    175        198,434  

5.00%, 07/01/31

    175        195,141  

City of Tucson Arizona, COP, Refunding, (AGC), 4.00%, 07/01/20

    2,325        2,395,796  

County of Maricopa Arizona IDA, Refunding RB, Honorhealth, Series A:

    

5.00%, 09/01/32

    1,000        1,153,660  

5.00%, 09/01/33

    800        919,360  

5.00%, 09/01/34

    1,000        1,142,100  

County of Pinal Arizona Electric District No. 3, Refunding RB, 5.00%, 07/01/21(a)

    1,600        1,722,864  

Glendale Union School District No. 205, GO, Series C (BAM):

    

5.00%, 07/01/24

    1,945        2,185,635  

5.00%, 07/01/27

    500        557,610  

Phoenix-Mesa Gateway Airport Authority, RB, Mesa Project, AMT:

    

5.00%, 07/01/27

    700        756,343  

5.00%, 07/01/32

    1,925        2,068,201  

Scottsdale IDA, Refunding RB, Scottsdale Healthcare, Series C (AGM),
5.00%, 09/01/35

    2,050        2,137,371  
Security   Par
(000)
     Value  
Arizona (continued)  

State of Arizona, COP, Department of Administration, Series A (AGM),
4.25%, 10/01/23

  $ 1,000      $ 1,016,800  
    

 

 

 
       23,137,701  
Arkansas — 0.7%  

City of Benton Arkansas, RB,
5.00%, 06/01/29

    1,055        1,196,391  

University of Arkansas, Refunding RB, 5.00%, 03/01/31

    2,315        2,648,337  
    

 

 

 
       3,844,728  
California — 6.5%  

California Health Facilities Financing Authority, RB, Sutter Health, Series B, 5.00%, 08/15/20(a)

    2,135        2,246,981  

City of San Jose California, Refunding ARB, Series A-1, AMT, 5.00%, 03/01/25

    2,000        2,118,380  

County of Santa Barbara California, COP, Series B, AMT, 5.25%, 12/01/33

    10,330        12,207,891  

Golden State Tobacco Securitization Corp., Refunding RB, Series A-1:

    

5.00%, 06/01/33

    6,715        7,487,561  

5.00%, 06/01/35

    5,785        6,397,284  

State of California, GO:

    

5.50%, 04/01/28

    15        15,045  

Various Purposes, 5.75%, 04/01/31

    7,000        7,042,840  
    

 

 

 
       37,515,982  
Colorado — 1.6%  

City & County of Denver Colorado Airport System Revenue, Refunding ARB, AMT, Sub-System, Series A, 5.00%, 12/01/32

    5,000        5,831,400  

Colorado Health Facilities Authority, Refunding RB, Catholic Health Initiatiives, Series B-1, 5.00%, 07/01/38

    270        284,923  

Park Creek Metropolitan District, Refunding, Tax Allocation Bonds, 5.00%, 12/01/34

    500        556,385  

University of Northern Colorado, Refunding RB, Series A, 5.00%, 06/01/31

    2,000        2,257,960  
    

 

 

 
       8,930,668  
Connecticut — 2.6%  

Connecticut State Health & Educational Facility Authority, Refunding RB, Lawrence & Memorial Hospital, Series F, 5.00%, 07/01/21(a)

    4,530        4,861,188  

State of Connecticut, GO, Series A:

    

5.00%, 04/15/30

    5,000        5,763,600  
 

 

 

     1  


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Connecticut (continued)  

5.00%, 04/15/31

  $ 4,000     $ 4,549,040  
   

 

 

 
      15,173,828  
Delaware — 0.8%  

County of Kent Delaware, RB, CHF-Dover, LLC-Delaware State University Project,
Series A:

   

5.00%, 07/01/29

    880       981,675  

5.00%, 07/01/30

    1,030       1,139,860  

5.00%, 07/01/31

    750       823,995  

5.00%, 07/01/32

    375       409,913  

5.00%, 07/01/33

    1,190       1,294,208  
   

 

 

 
      4,649,651  
Florida — 5.9%  

Capital Region Community Development District, Refunding, Special Assessment Bonds,
Series A-1:

   

4.13%, 05/01/23

    500       497,090  

4.63%, 05/01/28

    500       493,680  

County of Broward Florida School Board, COP, Refunding, Series A (AGM), 5.00%, 07/01/21(a)

    10,000       10,780,200  

County of Lee Florida, Refunding ARB, Series A, AMT (AGM), 5.00%, 10/01/27

    1,635       1,748,747  

County of Lee Florida, Refunding RB, Series A, AMT, 5.50%, 10/01/23

    1,000       1,083,360  

County of Miami-Dade Florida, RB, AMT,
Series B:

   

6.00%, 10/01/28

    3,470       3,990,916  

6.00%, 10/01/29

    3,480       3,999,112  

County of Miami-Dade Florida Educational Facilities Authority, Refunding RB, Series A, 5.00%, 04/01/32

    5,020       5,618,886  

County of Miami-Dade Florida Transit System Sales Surtax Revenue, Refunding RB,
5.00%, 07/01/32

    1,500       1,639,230  

Lakewood Ranch Stewardship District, Special Assessment Bonds:

   

Del Webb Project, 3.65%, 05/01/22(b)

    525       525,157  

Del Webb Project, 4.30%, 05/01/27(b)

    520       518,898  

Lakewood National and Polo Run Projects,
4.00%, 05/01/22

    1,230       1,236,716  
Security   Par
(000)
    Value  
Florida (continued)  

Midtown Miami Community Development District, Refunding, Special Assessment Bonds, Series A, 4.25%, 05/01/24

  $ 1,300     $ 1,332,903  

Sarasota County Health Facilities Authority, RB, Sunnyside Village Project, 5.00%, 05/15/33

    600       651,246  

Sterling Hill Community Development District, Refunding, Special Assessment Bonds, Series B, 5.50%, 11/01/10(c)(d)

    143       91,229  
   

 

 

 
      34,207,370  
Georgia — 2.4%  

City of Atlanta Georgia Water & Wastewater Revenue, Refunding RB, 5.00%, 11/01/32

    8,315       9,473,030  

County of Cobb Kennestone Hospital Authority, Refunding RB, Revenue Anticipation Certificates, 5.00%, 04/01/32

    1,250       1,419,988  

Main Street Natural Gas Inc, RB, Series A,
5.50%, 09/15/28

    2,500       3,067,775  
   

 

 

 
      13,960,793  
Hawaii — 0.9%  

State of Hawaii Airports System, Refunding ARB, Series A, 5.25%, 07/01/29

    5,000       5,210,950  
   

 

 

 
Illinois — 15.8%  

Chicago Board of Education, GO, Refunding, Series C, 5.00%, 12/01/26

    4,730       5,005,759  

Chicago Board of Education, GO, Refunding Dedicated Revenues, Series D, 5.00%, 12/01/26

    4,185       4,428,985  

City of Chicago Illinois Midway International Airport, Refunding ARB, 2nd Lien, Series A, AMT:

   

5.00%, 01/01/32

    5,000       5,431,700  

5.50%, 01/01/32

    1,500       1,647,150  

City of Chicago Illinois O’Hare International Airport, Refunding GARB, AMT, Series C:

   

5.25%, 01/01/28

    1,350       1,479,465  

5.25%, 01/01/29

    3,020       3,301,404  

City of Chicago Illinois O’Hare International Airport, RB, Refunding GARB, 5.00%, 01/01/32

    3,745       4,158,373  
 

 

 

2   


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Illinois (continued)  

City of Chicago Illinois O’Hare International Airport, Refunding GARB, Senior Lien, Series A, AMT, 5.00%, 01/01/23

  $ 13,000     $ 14,258,660  

City of Chicago Illinois Transit Authority, RB, 5.25%, 12/01/31

    3,700       3,924,738  

County of Cook Illinois Community College District No. 508, GO, City College of Chicago,
5.13%, 12/01/38

    1,000       1,026,340  

Illinois Finance Authority, Refunding RB, CHF-Chicago, LLC-University Of Illinois at Chicago:

   

5.00%, 02/15/28

    810       916,150  

5.00%, 02/15/29

    400       448,932  

5.00%, 02/15/30

    500       557,625  

5.00%, 02/15/31

    500       554,505  

5.00%, 02/15/32

    500       551,790  

Madison-Macoupin Etc. Counties Community College District No. 536, GO, Refunding, Lewis & Clark Community College:

   

5.00%, 05/01/30

    475       490,238  

5.00%, 05/01/31

    500       515,980  

5.00%, 05/01/32

    500       515,480  

Metropolitan Pier & Exposition Authority, Refunding RB, McCormick Place Expansion Project, 5.00%, 12/15/28

    1,200       1,304,628  

Railsplitter Tobacco Settlement Authority, RB, 5.50%, 06/01/21(a)

    3,500       3,795,155  

State of Illinois, GO:

   

5.25%, 02/01/30

    5,000       5,264,100  

5.00%, 04/01/31

    1,000       1,036,230  

5.00%, 05/01/31

    10,010       10,382,572  

State of Illinois, GO, Refunding, Series B,
5.00%, 10/01/27

    470       509,814  

State of Illinois, GO, Series D, 5.00%, 11/01/28

    1,645       1,776,584  

State of Illinois Finance Authority, Refunding RB, Southern Illinois Healthcare Enterprises, Inc.:

   

5.00%, 03/01/30

    550       625,818  

5.00%, 03/01/32

    920       1,034,218  

State of Illinois Toll Highway Authority, RB,
Series A, 5.00%, 01/01/34

    9,140       10,010,585  

State of Illinois Toll Highway Authority, Refunding RB, Senior Series A, 5.00%, 12/01/31

    5,220       5,922,925  
   

 

 

 
      90,875,903  
Indiana — 4.0%  

City of Whiting Indiana, RB, BP Products North America, Inc. Project, 5.25%, 01/01/21

    4,800       5,086,848  
Security   Par
(000)
    Value  
Indiana (continued)  

County of Jasper Indiana, Refunding RB, Northern Indiana Public Service Co., Series C (NPFGC), 5.85%, 04/01/19

  $ 2,000     $ 2,011,440  

Indiana Finance Authority, RB, Wastewater, 1st Lien, Series A, 5.25%, 10/01/31

    10,000       10,839,700  

Indiana Finance Authority, Refunding RB, US Steel Corp. Project, 6.00%, 12/01/19

    5,000       5,106,250  
   

 

 

 
      23,044,238  
Iowa — 1.1%  

Iowa Higher Education Loan Authority, RB, Private College Facility:

   

5.25%, 04/01/23

    695       742,309  

5.25%, 04/01/24

    730       779,691  

5.25%, 04/01/25

    520       555,397  

5.25%, 04/01/26

    360       384,505  

Iowa Higher Education Loan Authority, Refunding RB, Private College Facility:

   

5.00%, 09/01/20(a)

    2,315       2,430,611  

Upper Iowa University Project,
5.00%, 09/01/20(e)

    800       826,856  

Iowa Student Loan Liquidity Corp., Refunding RB, AMT, Series A, 5.00%, 12/01/26

    775       885,259  
   

 

 

 
      6,604,628  
Kansas — 1.4%  

County of Seward Unified School District No. 480 Liberal, GO, Refunding:

   

5.00%, 09/01/22(a)

    1,005       1,108,505  

5.00%, 09/01/22(a)

    3,990       4,437,438  

5.00%, 09/01/33

    1,005       1,108,505  

Kansas Development Finance Authority, Refunding RB, Health Hospital Nursing Home Improvements:

   

5.00%, 11/15/19(a)

    35       35,841  

5.00%, 11/15/23

    1,465       1,496,527  
   

 

 

 
      8,186,816  
Kentucky — 0.5%  

Countyof Louisville/Jefferson Metropolitan Government, Refunding RB, Catholic Health Initiatives:

   

5.00%, 12/01/35

    120       126,640  

Series A, 5.00%, 12/01/31

    2,750       2,921,820  
   

 

 

 
      3,048,460  
Louisiana — 3.2%  

City of Bossier City Louisiana Utilities, Refunding RB, 5.00%, 10/01/32

    2,000       2,304,400  
 

 

 

     3  


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
     Value  
Louisiana (continued)  

Louisiana Local Government Environmental Facilities & Community Development Authority, Refunding RB, BRCC Facilities Corp. Project:

    

5.00%, 12/01/27

  $ 3,445      $ 3,718,533  

5.00%, 12/01/28

    3,715        4,009,971  

New Orleans Aviation Board, RB, Series A, 5.00%, 01/01/33

    1,000        1,113,820  

State of Louisiana Gasoline & Fuels Tax Revenue, Refunding RB, 4.00%, 05/01/34

    3,000        3,121,110  

Terrebonne Levee & Conservation District, RB, Sales Tax, 5.00%, 07/01/28

    3,660        4,083,352  
    

 

 

 
       18,351,186  
Maine — 0.3%  

Portland Housing Development Corp., Refunding RB, Senior Living, Retirement Facilities, Series A, 6.00%, 02/01/34

    1,965        1,968,006  
    

 

 

 
Maryland — 1.7%  

City of Rockville Maryland, RB, Ingleside King Farm Project, 3.50%, 11/01/26

    1,825        1,807,827  

Maryland Economic Development Corp., RB, Transportation Facilities Project, Series A, 5.13%, 06/01/20(e)

    1,020        1,056,139  

Maryland Economic Development Corp., Refunding RB, Transportation Facilities Project, Series A:

    

5.00%, 06/01/29

    1,835        2,141,280  

5.00%, 06/01/30

    1,015        1,175,441  

5.00%, 06/01/31

    1,000        1,147,570  

5.00%, 06/01/32

    1,000        1,138,040  

Maryland Health & Higher Educational Facilities Authority, RB, Johns Hopkins Health System, Series B, 5.00%, 07/01/33

    1,140        1,252,905  
    

 

 

 
       9,719,202  
Massachusetts — 1.7%  

Massachusetts Development Finance Agency, Refunding RB:

    

Emerson College Issue, Series A,
5.00%, 01/01/31

    1,730        1,889,558  

Suffolk University, 5.00%, 07/01/29

    2,700        3,079,215  

Suffolk University, 5.00%, 07/01/30

    3,125        3,534,250  
Security   Par
(000)
     Value  
Massachusetts (continued)  

Massachusetts Health & Educational Facilities Authority, Refunding RB, Winchester Hospital, 5.00%, 07/01/25

  $ 1,060      $ 1,101,668  
    

 

 

 
       9,604,691  
Michigan — 3.5%  

City of Detroit Michigan, GO:

    

5.00%, 04/01/26

    265        287,695  

5.00%, 04/01/27

    210        227,984  

5.00%, 04/01/28

    235        254,735  

5.00%, 04/01/29

    235        253,422  

5.00%, 04/01/30

    180        193,394  

5.00%, 04/01/31

    265        282,419  

5.00%, 04/01/32

    225        238,556  

5.00%, 04/01/33

    295        311,853  

Manistee Area Public Schools, GO, Refunding, (Q-SBLF), 5.00%, 05/01/25

    1,000        1,069,970  

Michigan Finance Authority, Refunding RB, Senior Lien, Detroit Water and Sewer, Series C-3 (AGM), 5.00%, 07/01/31

    4,000        4,445,120  

Michigan State Building Authority, Refunding RB, Facilities Program, Series II-A,
5.00%, 10/15/24

    2,500        2,702,075  

Michigan State Hospital Finance Authority, Refunding RB, Henry Ford Health System, 5.25%, 11/15/19(a)

    4,900        5,033,035  

Michigan Strategic Fund, RB, I -75 Improvement Projects, AMT:

    

5.00%, 06/30/33

    2,415        2,724,651  

5.00%, 12/31/33

    2,000        2,256,440  
    

 

 

 
       20,281,349  
Minnesota — 2.0%  

City of Minneapolis, RB, YMCA of the Greater Twin Cities Project:

    

4.00%, 06/01/30

    150        160,813  

4.00%, 06/01/31

    50        52,960  

City of Minneapolis, Refunding RB, Fairview Health Services, Series A, 5.00%, 11/15/33

    2,370        2,727,870  

County of St. Paul Minnesota Housing & Redevelopment Authority, RB, Great River School Project, Series A, 4.75%, 07/01/29(b)

    250        253,975  

Duluth Economic Development Authority, Refunding RB, Essentia Health Obligated Group, Series A:

    

5.00%, 02/15/33

    1,000        1,123,910  

5.00%, 02/15/34

    1,185        1,332,331  
 

 

 

4   


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
     Value  
Minnesota (continued)  

University of Minnesota, RB, Biomedical Science Research Facilities Funding Program:

    

Series B, 5.00%, 08/01/36

  $ 1,000      $ 1,069,790  

Series C, 5.00%, 08/01/27

    1,390        1,567,003  

Series C, 5.00%, 08/01/28

    740        833,558  

Series C, 5.00%, 08/01/29

    1,555        1,749,453  

Series C, 5.00%, 08/01/30

    835        938,273  
    

 

 

 
       11,809,936  
Missouri — 0.3%  

City of St. Louis Missouri IDA, Refunding RB, Ballpark Village Development Project, Series A, 3.88%, 11/15/29

    370        377,844  

St. Louis County Industrial Development Authority, Refunding RB, Friendship Village St. Louis Obligated Group:

    

5.00%, 09/01/27

    360        384,556  

5.00%, 09/01/32

    1,015        1,053,671  
    

 

 

 
       1,816,071  
Montana — 0.1%  

County of Yellowstone Montana School District No. 2 Billings, GO, 5.00%, 06/15/30

    500        565,320  
    

 

 

 
Nebraska — 0.9%  

County of Douglas Nebraska Hospital Authority No. 3, Refunding RB,
5.00%, 11/01/30

    800        892,312  

County of Lancaster Nebraska Hospital Authority No. 1, Refunding RB, Immanuel Obligation Group, 5.50%, 01/01/30

    1,000        1,028,580  

Nebraska Public Power District, Refunding RB, Series A:

    

5.00%, 01/01/30

    1,000        1,078,740  

5.00%, 01/01/32

    2,000        2,156,300  
    

 

 

 
       5,155,932  
Nevada — 1.6%  

County of Clark Nevada Department of Aviation, Refunding RB, 5.00%, 07/01/33

    5,000        5,596,300  

County of Humboldt Nevada, Refunding RB, Idaho Power Co. Project, 5.15%, 12/01/24

    3,800        3,867,792  
    

 

 

 
       9,464,092  
New Hampshire — 0.2%  

New Hampshire Business Finance Authority, Refunding RB, Resource Recovery, Covanta Project, Series A, AMT,
4.00%, 11/01/27(b)

    795        782,852  
Security   Par
(000)
     Value  
New Hampshire (continued)  

New Hampshire Health & Education Facilities Authority Act, Refunding RB, Dartmouth-Hitchcock Obligated Group, Series A, 5.00%, 08/01/32

  $ 365      $ 418,750  
    

 

 

 
       1,201,602  
New Jersey — 25.7%  

County of Essex New Jersey Improvement Authority, LRB, Newark Project, Series A (AGM), 5.00%, 11/01/20

    1,364        1,415,314  

New Jersey EDA, ARB, Continental Airlines, Inc. Project, 5.13%, 09/15/23

    6,040        6,513,596  

New Jersey EDA, RB, Goethals Bridge Replacement Project, Private Activity Bond AMT:

    

5.50%, 01/01/26

    1,500        1,691,085  

5.50%, 01/01/27

    1,000        1,122,500  

New Jersey EDA, Refunding ARB, Port Newark Container Terminal LLC Project, AMT:

    

5.00%, 10/01/26

    2,135        2,404,907  

5.00%, 10/01/27

    1,680        1,896,199  

New Jersey EDA, Refunding RB:

    

New Jersey American Water Co., Series E, AMT, 4.70%, 12/01/25

    3,000        3,113,670  

School Facilities Construction, Series AA, 4.25%, 12/15/24

    3,850        3,871,983  

School Facilities Construction, Series EE, 5.00%, 09/01/23

    3,465        3,634,716  

New Jersey Educational Facilities Authority, RB, Higher Education Facilities Trust Fund, 5.00%, 06/15/28

    10,000        10,793,300  

New Jersey Educational Facilities Authority, Refunding RB,
5.00%, 07/01/30

    5,000        5,684,700  

New Jersey Higher Education Student Assistance Authority, Refunding RB:

    

AMT, Series B, 5.00%, 12/01/27

    1,000        1,164,130  

AMT, Series B, 5.00%, 12/01/28

    1,000        1,163,360  

Series 1, AMT, 5.50%, 12/01/26

    750        794,745  

Student Loan, Series 1A,
4.75%, 12/01/21

    1,060        1,081,073  

New Jersey State Turnpike Authority, RB, Series E, 5.00%, 01/01/32

    12,000        13,588,680  

New Jersey State Turnpike Authority, Refunding RB, Series B,
5.00%, 01/01/29

    10,000        11,082,500  

New Jersey Transportation Trust Fund Authority, RB:

    

Federal Highway Reimbursement Revenue Notes, Series A,
5.00%, 06/15/30

    2,000        2,224,740  
 

 

 

     5  


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
New Jersey (continued)  

Series B, 5.25%, 06/15/26

  $ 3,500     $ 3,704,575  

Transportation Program, Series AA,
5.25%, 06/15/31

    12,000       12,857,520  

Transportation Program, Series AA,
5.25%, 06/15/32

    2,250       2,451,352  

Transportation System, Series A,
5.25%, 06/15/24

    3,185       3,382,470  

Transportation System, Series B,
5.50%, 06/15/31

    11,780       12,432,965  

Transportation System, Series C,
5.25%, 06/15/32

    10,000       10,831,800  

New Jersey Transportation Trust Fund Authority, Refunding RB, Series A:

   

Federal Highway Reimbursement Revenue Notes, 5.00%, 06/15/30

    1,695       1,885,467  

Transportation System, 5.00%, 12/15/33

    2,285       2,487,131  

Newark Housing Authority, RB, Series A:

   

5.00%, 12/01/23

    1,230       1,383,688  

5.00%, 12/01/25

    1,345       1,521,733  

South Jersey Port Corp., ARB, Sobordinated Marine Terminal, Series B, AMT:

   

5.00%, 01/01/29

    250       284,010  

5.00%, 01/01/30

    200       225,394  

5.00%, 01/01/31

    350       390,723  

5.00%, 01/01/32

    425       471,015  

State of New Jersey, GO, Various Purposes, 5.00%, 06/01/28

    5,000       5,752,150  

Tobacco Settlement Financing Corp., Refunding RB, Series A:

   

5.00%, 06/01/30

    850       972,477  

5.00%, 06/01/32

    11,980       13,459,530  

Tobacco Settlement Bonds, 5.00%, 06/01/33

    220       245,496  
   

 

 

 
      147,980,694  
New Mexico — 1.2%  

Albuquerque Municipal School District No. 12, GO, Series 2017, 5.00%, 08/01/30

    1,250       1,470,687  

County of Albuquerque Bernalillo New Mexico Water Utility Authority, Refunding RB,
4.00%, 07/01/33

    2,510       2,664,315  
Security   Par
(000)
    Value  
New Mexico (continued)  

New Mexico Hospital Equipment Loan Council, Refunding RB, 5.00%, 08/01/31

  $ 2,500     $ 2,843,475  
   

 

 

 
      6,978,477  
New York — 11.5%  

Build NYC Resource Corp., RB, Inwood Academy for Leadership Charter School Project, Series A, 4.88%, 05/01/31(b)

    450       453,465  

Build NYC Resource Corp., Refunding RB, Manhattan College Project, 5.00%, 08/01/35

    665       756,570  

City of New York, GO, Refunding, Series A,
5.00%, 08/01/29

    5,125       5,968,472  

City of New York, GO, Sub-Series I-1,
5.50%, 04/01/19(a)

    5,000       5,031,550  

Counties of Buffalo & Erie New York Industrial Land Development Corp., Refunding RB, The Charter School for Applied Technologies Project, Series A:

   

4.00%, 06/01/22

    800       825,112  

4.50%, 06/01/27

    1,710       1,836,335  

5.00%, 06/01/35

    415       443,087  

County of Monroe New York Industrial Development Corp., Refunding RB, Series A, 5.00%, 07/01/23(a)

    5,695       6,500,273  

County of Westchester New York Healthcare Corp., Refunding RB, Senior Lien, Remarketing, Series A:

   

5.00%, 11/01/24

    5,470       5,832,989  

5.00%, 11/01/30

    655       689,381  

Long Island Power Authority, Refunding RB, Electric System, Series A, 5.50%, 04/01/19(a)

    1,000       1,006,230  

Metropolitan Transportation Authority, RB(a):

   

Sub-Series B-1, 5.00%, 11/15/21

    2,300       2,512,451  

Sub-Series B-4, 5.00%, 11/15/21

    1,500       1,638,555  

New York City Trust for Cultural Resources, Refunding RB, Carnegie Hall, Series A, 5.00%, 12/01/29

    2,750       2,820,757  

New York State Dormitory Authority, RB, North Shore-Long Island Jewish Health System, Series A, 5.50%, 05/01/19(a)

    1,495       1,509,143  

New York State Dormitory Authority, Refunding RB:

   

4.25%, 09/01/19(a)

    480       487,109  

5.00%, 07/01/30

    1,555       1,792,791  
 

 

 

6   


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
     Value  
New York (continued)  

Niagara Area Development Corp., Refunding RB, Covanta Project, Series B, 3.50%, 11/01/24(b)

  $ 1,000      $ 989,700  

Port Authority of New York & New Jersey, ARB, JFK International Air Terminal LLC Project, Series 8, 5.00%, 12/01/20

    1,690        1,760,490  

State of New York Dormitory Authority, RB, Series A:

    

Fordham University, 5.25%, 07/01/21(a)

    900        977,517  

Icahn School of Medicine at Mount Sinai, 5.00%, 07/01/32

    9,000        10,182,150  

New York University Hospitals Center, 5.00%, 07/01/20(a)

    1,725        1,805,333  

New York University Hospitals Center, 5.13%, 07/01/20(a)

    1,670        1,750,678  

State of New York Dormitory Authority, Refunding RB:

    

North Shore-Long Island Jewish Obligated Group, Series A,
5.00%, 05/01/32

    3,060        3,435,493  

Orange Regional Medical Center, 5.00%, 12/01/27(b)

    900        1,037,430  

Orange Regional Medical Center, 5.00%, 12/01/28(b)

    1,800        2,061,972  

Series E, 5.25%, 03/15/33

    2,000        2,331,980  
    

 

 

 
       66,437,013  
North Carolina — 0.3%  

North Carolina Medical Care Commission, Refunding RB, WakeMed, Series A, 5.00%, 10/01/31

    1,500        1,637,970  
    

 

 

 
Ohio — 1.2%  

State of Ohio Turnpike Commission, RB, Junior Lien, Infrastructure Projects, Series A-1, 5.25%, 02/15/31

    6,000        6,680,040  
    

 

 

 
Oklahoma — 1.6%  

Norman Regional Hospital Authority, Refunding RB, 5.00%, 09/01/28

    1,575        1,812,321  

Oklahoma City Public Property Authority, Refunding RB:

    

5.00%, 10/01/27

    1,190        1,389,670  

5.00%, 10/01/28

    1,265        1,474,699  

5.00%, 10/01/29

    1,400        1,626,450  

Oklahoma Development Finance Authority, RB, OU Medicene Project, Series B:

    

5.00%, 08/15/29

    1,200        1,381,536  
Security   Par
(000)
     Value  
Oklahoma (continued)  

5.00%, 08/15/33

  $ 1,305      $ 1,446,828  
    

 

 

 
       9,131,504  
Oregon — 1.5%  

County of Klamath Oregon School District, GO:

    

5.00%, 06/15/30

    1,000        1,121,190  

5.00%, 06/15/31

    1,000        1,119,860  

County of Umatilla Oregon School District No. 16R Pendleton, GO, Series A,
5.00%, 06/15/32

    2,000        2,274,220  

Oregon State Facilities Authority, Refunding RB, Reed College Project, Series A,
5.00%, 07/01/20(a)

    1,835        1,919,667  

State of Oregon, GO, Series H,
5.00%, 05/01/36

    2,000        2,174,880  
    

 

 

 
       8,609,817  
Pennsylvania — 7.3%  

Allentown Neighborhood Improvement Zone Development Authority, RB, City Center Project(b):

    

5.00%, 05/01/22

    2,000        2,090,460  

5.00%, 05/01/23

    640        675,949  

5.00%, 05/01/28

    835        911,478  

Commonwealth Financing Authority, RB, Tobacco Master Settlement Payment:

    

5.00%, 06/01/33

    2,000        2,262,340  

5.00%, 06/01/34

    3,750        4,222,687  

County of Allegheny Pennsylvania, GO, Refunding, Series C-68, 5.00%, 11/01/25

    2,515        2,713,836  

County of Allegheny Pennsylvania, GO, Series C-67:

    

5.00%, 11/01/25

    2,700        2,913,462  

5.00%, 11/01/26

    2,375        2,560,796  

Pennsylvania Economic Development Financing Authority, RB, PA Bridges Finco LP, AMT, 5.00%, 12/31/28

    115        129,599  

Pennsylvania Turnpike Commission, RB, Sub-Series B, 5.25%, 12/01/21(a)

    4,000        4,392,280  

Pennsylvania Turnpike Commission, Refunding RB:

    

Second Series, 5.00%, 12/01/30

    2,620        3,003,830  

Sub-Series B, 5.00%, 06/01/32

    5,000        5,614,100  

School District of Philadelphia, GOL, Series A:

    

5.00%, 09/01/30

    1,200        1,385,448  

5.00%, 09/01/31

    1,000        1,148,170  
 

 

 

     7  


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Pennsylvania (continued)  

5.00%, 09/01/32

  $ 1,200     $ 1,368,396  

South Fork Municipal Authority, Refunding RB, Conemaugh Valley Memorial Hospital, Series A (AGC), 6.00%, 07/01/20(a)

    6,225       6,580,572  
   

 

 

 
      41,973,403  
Rhode Island — 1.3%  

Providence Redevelopment Agency, Refunding RB, Series A, 5.00%, 04/01/29

    1,000       1,097,500  

Rhode Island Health & Educational Building Corp., RB, City of Newport Issue Financing Program, Series C, 5.00%, 05/15/30

    2,305       2,517,291  

Rhode Island Health & Educational Building Corp., Refunding RB, 5.00%, 09/01/32

    2,000       2,241,500  

Rhode Island Student Loan Authority, Refunding RB, Senior Series A, AMT:

   

5.00%, 12/01/24

    750       840,225  

5.00%, 12/01/25

    850       963,152  
   

 

 

 
      7,659,668  
South Carolina — 2.5%  

South Carolina Jobs-Economic Development Authority, Refunding RB, The Woodlands at Furman, 4.00%, 11/15/27

    905       893,742  

South Carolina Public Service Authority, Refunding RB, Series A:

   

5.00%, 12/01/30

    5,500       6,126,450  

5.00%, 12/01/31

    5,660       6,273,544  

5.00%, 12/01/32

    200       220,450  

5.00%, 12/01/33

    800       880,712  
   

 

 

 
      14,394,898  
South Dakota — 0.2%  

South Dakota Health & Educational Facilities Authority, Refunding RB, Regional Health, 5.00%, 09/01/20(a)

    1,000       1,049,940  
   

 

 

 
Tennessee — 2.0%  

County of Memphis-Shelby Industrial Development Board, Refunding, Tax Allocation Bonds, Graceland Project, Series A, 4.75%, 07/01/27

    220       229,123  

County of Memphis-Shelby Tennessee Sports Authority, Inc., Refunding RB, Memphis Arena Project:

   

Series A, 5.00%, 11/01/23

    2,695       2,756,958  
Security   Par
(000)
    Value  
Tennessee (continued)  

Series B, 5.00%, 11/01/22

  $ 1,000     $ 1,022,920  

Knox County Health Educational & Housing Facility Board Tennessee, Refunding RB, Eastowne Village Project, 4.00%, 06/01/31(f)

    2,885       2,933,295  

Metropolitan Government Nashville & Davidson County Health & Educational Facilities Board, RB, Vanderbilt University Medical Center, Series A, 5.00%, 07/01/35

    4,000       4,449,120  
   

 

 

 
      11,391,416  
Texas — 10.8%  

City of Grapevine Texas, GO, 5.00%, 02/15/33

    5,685       6,295,683  

City of Houston Texas, Refunding ARB, Subordinate Lien, Series A, AMT:

   

5.00%, 07/01/25

    1,500       1,596,510  

5.00%, 07/01/32

    1,010       1,084,114  

City of Houston Texas Airport System Revenue, Refunding ARB, Sub-Series A, AMT:

   

5.00%, 07/01/31

    1,430       1,667,995  

5.00%, 07/01/32

    1,515       1,755,006  

County of Tarrant Texas Cultural Education Facilities Finance Corp., RB, Christus Health, Series B, 5.00%, 07/01/33

    8,485       9,726,271  

Dallas-Fort Worth International Airport, ARB, Joint Improvement, Series D, AMT, 5.00%, 11/01/38

    8,290       8,743,049  

Dallas/Fort Worth Texas International Airport, Refunding RB, AMT:

   

Series E, 5.00%, 11/01/26

    2,185       2,296,195  

Series E, 5.00%, 11/01/27

    4,960       5,207,206  

Series F, 5.00%, 11/01/31

    6,345       6,636,743  

Love Field Airport Modernization Corp., RB, Southwest Airlines Co. Project, AMT,
5.00%, 11/01/28

    1,000       1,081,660  

Mission EDC, Refunding RB, Senior Lien, NatGasoline Project, AMT, 4.63%, 10/01/31(b)

    1,475       1,503,984  

New Hope Cultural Education Facilities Finance Corp., RB, Jubilee Academic Center Project, Series A(b):

   

3.63%, 08/15/22

    105       104,021  

4.25%, 08/15/27

    160       158,643  

Red River Education Financing Corp., RB,
5.00%, 03/15/33

    1,340       1,475,152  
 

 

 

8   


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
Texas (continued)  

San Jacinto River Authority, RB, Special Project (AGM), 5.25%, 10/01/25

  $ 2,910     $ 2,975,912  

Socorro Independent School District, GO, Refunding(PSF-GTD):

   

5.00%, 08/15/20(a)

    2,410       2,530,765  

5.00%, 08/15/32

    90       94,105  

Via Metropolitan Transit Authority, Refunding RB:

   

5.25%, 08/01/28

    1,585       1,785,613  

5.25%, 08/01/29

    1,720       1,935,361  

5.25%, 08/01/33

    3,000       3,374,250  
   

 

 

 
      62,028,238  
U.S. Virgin Islands — 0.9%  

Virgin Islands Public Finance Authority, Refunding RB, Series A (AGM), 5.25%, 10/01/24

    5,000       5,424,200  
   

 

 

 
Utah — 1.0%  

Salt Lake City Corp. Airport Revenue, ARB, AMT, Series A, 5.00%, 07/01/33

    3,500       4,023,565  

Utah Charter School Finance Authority, Refunding RB, Freedom Academy Foundation Project, 4.50%, 06/15/27(b)

    1,500       1,480,395  
   

 

 

 
      5,503,960  
Vermont — 1.0%  

University of Vermont & State Agricultural College, Refunding RB, 4.00%, 10/01/30

    5,565       5,903,074  
   

 

 

 
Washington — 0.4%  

Washington State Housing Finance Commission, Refunding RB(b):

   

Horizon House Project, 5.00%, 01/01/28

    750       829,313  

Horizone House Project, 5.00%, 01/01/27

    1,460       1,619,680  
   

 

 

 
      2,448,993  
West Virginia — 1.0%  

West Virginia Hospital Finance Authority, Refunding RB, Charleston Area Medical Center, Inc., Series A, 5.13%, 09/01/23

    4,000       4,059,960  
Security   Par
(000)
    Value  
West Virginia (continued)  

West Virginia University, RB, West Virginia University Project, Series B, 5.00%, 10/01/30

  $ 1,500     $ 1,607,355  
   

 

 

 
      5,667,315  
Wisconsin — 1.3%  

Public Finance Authority, Refunding RB, AMT:

   

National Gypsum Co., 5.25%, 04/01/30

    2,410       2,522,740  

Wisconsin Airport Facilities, Senior Obligated Group, Series B, 5.25%, 07/01/28

    4,765       5,138,623  
   

 

 

 
      7,661,363  

Total Municipal Bonds — 137.2%
(Cost — $760,943,646)

 

    791,569,635  
   

 

 

 

Municipal Bonds Transferred to Tender Option Bond Trusts (g)

 

California — 4.0%  

Bay Area Toll Authority, Refunding RB, San Francisco Bay Area Subordinate, 4.00%, 04/01/31(b)(f)(h)

    8,080       8,843,984  

State of California, GO, Refunding Water Utility Authority, 5.00%, 10/01/35

    12,500       14,293,156  
   

 

 

 
      23,137,140  
Iowa — 1.3%  

Iowa Finance Authority, Refunding RB, UnityPoint Health, Series C, 4.13%, 02/15/35(b)(f)

    7,500       7,685,875  
   

 

 

 
Massachusetts — 3.4%  

Massachusetts Development Finance Agency, Refunding RB, Partners Healthcare System:

   

5.00%, 07/01/32

    7,500       8,702,400  

Series L, 5.00%, 07/01/31

    10,175       10,889,982  
   

 

 

 
      19,592,382  
Minnesota — 1.9%  

State of Minnesota, GO, State Various Purposes, Series A, 4.00%, 08/01/20(a)

    10,525       10,869,013  
   

 

 

 
New Jersey — 1.6%  

New Jersey Housing & Mortgage Finance Agency, Refunding RB, S/F, AMT, Series BB:

   

3.65%, 04/01/28(b)(f)

    5,000       5,124,148  
 

 

 

     9  


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

(Percentages shown are based on Net Assets)

 

Security   Par
(000)
    Value  
New Jersey (continued)  

3.70%, 10/01/28(b)(f)

  $ 3,875     $ 3,970,896  
   

 

 

 
      9,095,044  
New York — 10.5%  

City of New York, GO:

   

Sub-Series 1-I, 5.00%, 03/01/32

    7,009       7,876,366  

Refunding Series E, 5.00%, 08/01/19(a)

    1,018       1,034,075  

Refunding Series E, 5.00%, 08/01/27

    2,489       2,529,980  

City of New York Transitional Finance Authority Future Tax Secured Revenue, RB, Future Tax Secured Subordinate Bonds, SubSeries B-1, 5.00%, 08/01/36

    9,444       10,765,135  

Metropolitan Transportation Authority, RB, Sub-Series D-1, 5.00%, 11/15/39

    4,980       5,430,192  

Metropolitan Transportation Authority, Refunding RB, Series B, 5.25%, 11/15/19(a)

    4,001       4,114,423  

Port Authority of New York & New Jersey, Refunding ARB:

   

178th Series, AMT, 5.00%, 12/01/32

    4,009       4,447,076  

Consolidated, Series 169th, 5.00%, 10/15/26

    5,530       5,928,298  

Sales Tax Asset Receivable Corp., Refunding RB, Fiscal 2015, Series A, 5.00%, 10/15/31

    5,010       5,734,095  

State of New York Dormitory Authority, Refunding RB, Series A, 5.00%, 03/15/36(h)

    5,505       6,271,131  
Security   Par
(000)
    Value  
New York (continued)  

State of New York Urban Development Corp., RB, Personal Income Tax, Series A-1, 5.00%, 03/15/32

  $ 5,501     $ 6,098,069  
   

 

 

 
      60,228,840  
Texas — 1.5%  

Pflugerville Independent School District, GO, (PSF-GTD), 5.00%, 02/15/24(a)

    7,500       8,640,475  
   

 

 

 
Washington — 2.9%  

Port of Seattle Washington, ARB, AMT, Series A, 5.00%, 05/01/34

    15,000       16,939,200  
   

 

 

 

Total Municipal Bonds Transferred to Tender Option Bond Trusts — 27.1%
(Cost — $152,453,049)

 

    156,187,969  
   

 

 

 

Total Long-Term Investments — 164.3%
(Cost — $913,396,695)

 

    947,757,604  
   

 

 

 
     Shares         

Short-Term Securities — 0.4%

 

BlackRock Liquidity Funds, MuniCash, Institutional Class, 1.24%(i)(j)

    2,621,365       2,621,889  
   

 

 

 

Total Short-Term Securities — 0.4%
(Cost — $2,621,889)

 

    2,621,889  
   

 

 

 

Total Investments — 164.7%
(Cost — $916,018,584)

 

    950,379,493  

Other Assets Less Liabilities — 1.4%

 

    7,607,492  

Liability for TOB Trust Certificates, Including Interest Expense and Fees Payable — (16.3)%

 

    (94,020,655

VMTP Shares at Liquidation Value — (49.8)%

 

    (287,100,000
   

 

 

 

Net Assets Applicable to Common Shares — 100.0%

 

  $ 576,866,330  
   

 

 

 

 

(a) 

U.S. Government securities, held in escrow, are used to pay interest on this security, as well as to retire the bond in full at the date indicated, typically at a premium to par.

(b) 

Security exempt from registration pursuant to Rule 144A under the Securities Act of 1933, as amended. These securities may be resold in transactions exempt from registration to qualified institutional investors.

(c) 

Non-income producing security.

(d) 

Issuer filed for bankruptcy and/or is in default.

(e) 

Security is collateralized by municipal bonds or U.S. Treasury obligations.

(f) 

Variable or floating rate security, which interest rate adjusts periodically based on changes in current interest rates and prepayments on the underlying pool of assets. Rate shown is the rate in effect as of period end.

(g) 

Represent bonds transferred to a TOB Trust in exchange of cash and residual certificates received by the Fund. These bonds serve as collateral in a secured borrowing.

(h) 

All or a portion of security is subject to a recourse agreement. The aggregate maximum potential amount the Fund could ultimately be required to pay under the agreement, which expires between September 15, 2024 to April 1, 2025 is $10,037,537.

(i) 

Annualized 7-day yield as of period end.

(j) 

During the period ended January 31, 2019, investments in issuers considered to be an affiliate of the Fund for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

 

 

 

10   


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

 

Affiliate    Shares
Held at
04/30/18
     Net
Activity
     Shares
Held at
01/31/19
     Value at
01/31/19
     Income     

Net

Realized
Gain (Loss)
  (a)

     Change in
Unrealized
Appreciation
(Depreciation)
 

BlackRock Liquidity Funds, MuniCash, Institutional Class

            2,621,365        2,621,365      $ 2,621,889      $ 31,105      $ (138    $  
           

 

 

    

 

 

    

 

 

    

 

 

 

 

  (a) 

Includes net capital gain distributions, if applicable.

 

Portfolio Abbreviations

AGC — Assured Guarantee Corp.

AGM — Assured Guaranty Municipal Corp.

AMT — Alternative Minimum Tax (subject to)

ARB — Airport Revenue Bonds

BAM — Build America Mutual Assurance Co.

COP — Certificates of Participation

EDA — Economic Development Authority

EDC — Economic Development Corp.

GARB — General Airport Revenue Bonds

GO — General Obligation Bonds

GTD — Guaranteed

IDA — Industrial Development Authority

LRB — Lease Revenue Bonds

NPFGC — National Public Finance Guarantee Corp.

PSF — Permanent School Fund

RB — Revenue Bonds

S/F — Single-Family

Derivative Financial Instruments Outstanding as of Period End

Futures Contracts

 

Description    Number of
Contracts
       Expiration
Date
       Notional
Amount(000)
       Value/
Unrealized
Appreciation
(Depreciation)
 

Short Contracts:

                 

10-Year U.S. Treasury Note

     245          03/20/19        $ 30,005        $ (676,473

Long U.S. Treasury Bond

     75          03/20/19          11,002          (555,151

5-Year U.S. Treasury Note

     103          03/29/19          11,831          (202,656
                 

 

 

 
                  $ (1,434,280
                 

 

 

 

 

 

     11  


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

 

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of investments and derivative financial instruments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

 

   

Level 1 — Unadjusted prices quotations in active markets/exchanges for identical assets or liabilities that Fund has the ability to access

 

   

Level 2 — Other observable inputs (including, but not limited to, quoted prices for similar assets or liabilities in markets that are active, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or other market-corroborated inputs)

 

   

Level 3 — Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including Fund’s own assumptions used in determining the fair value of investments and derivative financial instruments)

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the BlackRock Global Valuation Methodologies Committee (the “Global Valuation Committee”) in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies or funds. There may not be a secondary market, and/or there are a limited number of investors. Level 3 investments may also be adjusted to reflect illiquidity and/or non-transferability, with the amount of such discount estimated by the Global Valuation Committee in the absence of market information.

Changes in valuation techniques may result in transfers into or out of an assigned level within the hierarchy. In accordance with the Fund’s policy, transfers between different levels of the fair value hierarchy are deemed to have occurred as of the beginning of the reporting period. The categorization of a value determined for investments and derivative financial instruments is based on the pricing transparency of the investments and derivative financial instruments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Fund’s policy regarding valuation of investments and derivative financial instruments, refer to the Fund’s most recent financial statements as contained in its semi-annual report.

 

      Level 1        Level 2        Level 3        Total  

Assets:

                 

Investments:

                 

Long-Term Investments(a)

   $        $ 947,757,604        $             —        $ 947,757,604  

Short-Term Securities

     2,621,889                            2,621,889  
  

 

 

      

 

 

      

 

 

      

 

 

 
   $ 2,621,889        $ 947,757,604        $        $ 950,379,493  
  

 

 

      

 

 

      

 

 

      

 

 

 

Derivative Financial Instruments(b)

                 

Liabilities:

                 

Interest rate contracts

   $ (1,434,280      $        $        $ (1,434,280
  

 

 

      

 

 

      

 

 

      

 

 

 

 

  (a) 

See above Schedule of Investments for values in each state or political subdivision.

 
  (b) 

Derivative financial instruments are futures contracts, which are valued at the unrealized appreciation (depreciation) on the instrument.

 

 

 

12   


Schedule of Investments  (unaudited) (continued)

January 31, 2019

  

BlackRock Muni Intermediate Duration Fund, Inc. (MUI)

 

The Fund may hold assets and/or liabilities in which the fair value approximates the carrying amount for financial reporting purposes. As of period end, such assets and/or liabilities are categorized within the disclosure hierarchy as follows:

 

      Level 1        Level 2        Level 3        Total  

Liabilities:

                 

TOB Trust Certificates

   $             —        $ (93,550,641      $             —        $ (93,550,641

VMTP Shares at Liquidation Value

              (287,100,000                 (287,100,000
  

 

 

      

 

 

      

 

 

      

 

 

 
   $        $ (380,650,641      $        $ (380,650,641
  

 

 

      

 

 

      

 

 

      

 

 

 

During the period ended January 31, 2019, there were no transfers between levels.

 

 

     13  


Item 2 – Controls and Procedures
2(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")) are effective as of a date within 90 days of the filing of this report based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act and Rule 13a-15(b) under the Securities Exchange Act of 1934, as amended.
2(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) 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
   Certifications – Attached hereto


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.

BlackRock Muni Intermediate Duration Fund, Inc.

 

By:       /s/ John M. Perlowski                    
    John M. Perlowski
    Chief Executive Officer (principal executive officer) of
    BlackRock Muni Intermediate Duration Fund, Inc.

Date: March 22, 2019

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:       /s/ John M. Perlowski                    
    John M. Perlowski
    Chief Executive Officer (principal executive officer) of
    BlackRock Muni Intermediate Duration Fund, Inc.

Date: March 22, 2019

 

By:    

  /s/ Neal J. Andrews                         
  Neal J. Andrews
    Chief Financial Officer (principal financial officer) of
    BlackRock Muni Intermediate Duration Fund, Inc.

Date: March 22, 2019