BlackRock Municipal Income Investment Trust

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 811-10333

Name of Fund: BlackRock Municipal Income Investment Trust (BBF)

Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809

Name and address of agent for service: John M. Perlowski, Chief Executive Officer, BlackRock Municipal

            Income Investment Trust, 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: 07/31/2017

Date of reporting period: 10/31/2016


Item 1 –  Schedule of Investments


Schedule of Investments October 31, 2016 (Unaudited)

  

BlackRock Municipal Income Investment Trust (BBF)

(Percentages shown are based on Net Assets)

 

Municipal Bonds   

Par  

(000)

    Value  

Alabama — 0.3%

  

 

City of Selma Alabama IDB, RB, Gulf Opportunity Zone, International Paper Co. Project, Series A, 5.38%, 12/01/35

   $ 420      $ 481,463   

Alaska — 0.3%

  

 

Northern Tobacco Securitization Corp., Refunding RB, Tobacco Settlement, Asset-Backed, Series A, 5.00%, 6/01/46

     510        481,445   

Arizona — 0.3%

  

 

County of Maricopa Arizona IDA, Refunding RB, Banner Health, Series A, 4.00%, 1/01/36 (a)

     430        453,813   

California — 15.3%

  

 

California Educational Facilities Authority, RB, University of Southern California, Series A, 5.25%, 10/01/18 (b)

     2,015        2,183,998   

California Health Facilities Financing Authority, Refunding RB, Catholic Healthcare West, Series A, 6.00%, 7/01/39

     1,010        1,128,907   

California Statewide Communities Development Authority, RB, Loma Linda University Medical Center, Series A, 5.25%, 12/01/56 (c)

     550        613,586   

City of Los Angeles California Department of Water & Power, RB, Power System, Sub-Series A-1, 5.25%, 7/01/38

     2,060        2,199,709   

Kern Community College District, GO, Safety, Repair & Improvement, Series C, 5.50%, 11/01/33

     1,185        1,462,503   

Riverside County Public Financing Authority, RB, Capital Facilities Project, 5.25%, 11/01/40

     1,000        1,197,240   

San Diego Regional Building Authority, RB, County Operations Center & Annex, Series A, 5.38%, 2/01/19 (b)

     2,450        2,692,746   

State of California, GO, Various Purposes, 6.00%, 3/01/33

     1,960        2,274,992   

State of California Public Works Board, LRB, Various Capital Projects, Series I:

    

5.50%, 11/01/31

     2,100        2,559,501   

5.50%, 11/01/33

     1,500        1,824,945   
Municipal Bonds   

Par  

(000)

    Value  

California (continued)

  

 

State of California Public Works Board, RB, Department of Corrections & Rehabilitation, Series F, 5.25%, 9/01/33

   $ 610      $ 733,854   

Tobacco Securitization Authority of Southern California, Refunding RB, Tobacco Settlement, Asset-Backed, Senior Series A-1, 5.00%, 6/01/37

     770        760,899   

Township of Washington California Health Care District, GO, Election of 2004, Series B, 5.50%, 8/01/40

     460        549,861   

University of California, Refunding RB, The Regents of Medical Center, Series J, 5.25%, 5/15/38

     2,780        3,330,607   
    

 

 

 
               23,513,348   

Colorado — 2.6%

  

 

City & County of Denver Colorado Airport System, ARB, Sub-System, Series B, 5.25%, 11/15/32

     1,750        2,100,245   

Colorado Health Facilities Authority, Refunding RB, Catholic Health Initiative, Series A, 5.50%, 7/01/34

     1,675        1,845,766   
    

 

 

 
               3,946,011   

Florida — 6.7%

  

 

City of Jacksonville Florida, Refunding RB, Series A, 5.25%, 10/01/33

     370        442,032   

County of Miami-Dade Florida, RB, Seaport, Series A, 6.00%, 10/01/38

     5,675        6,897,111   

County of Miami-Dade Florida Educational Facilities Authority, Refunding RB, University of Miami, Series A, 5.00%, 4/01/45

     1,645        1,896,011   

Reedy Creek Improvement District, GO, Series A, 5.25%, 6/01/32

     875        1,033,602   
    

 

 

 
               10,268,756   

Georgia — 1.8%

  

 

County of Clarke Hospital Authority, Refunding RB, Piedmont Healthcare, Inc. Project, Series A, 3.50%, 7/01/36 (a)

     500        488,855   
 

 

                
   BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST    OCTOBER 31, 2016    1


Schedule of Investments (continued)

  

BlackRock Municipal Income Investment Trust (BBF)

 

Municipal Bonds   

Par  

(000)

    Value  

Georgia (continued)

  

Municipal Electric Authority of Georgia, Refunding RB, Project One, Series D:

    

6.00%, 7/01/18 (b)

   $ 1,570      $ 1,703,230   

6.00%, 1/01/23

     550        594,380   
    

 

 

 
               2,786,465   

Illinois — 19.6%

  

City of Chicago Illinois O’Hare International Airport, GARB, 3rd Lien, Series C, 6.50%, 1/01/21 (b)

     4,545        5,437,047   

City of Chicago Illinois Transit Authority, RB:

    

5.25%, 12/01/31

     1,060        1,183,829   

Sales Tax Receipts, 5.25%, 12/01/36

     1,500        1,660,230   

Sales Tax Receipts, 5.25%, 12/01/40

     1,750        1,931,720   

County of Cook Illinois Community College District No. 508, GO, City College of Chicago:

    

5.50%, 12/01/38

     1,250        1,415,650   

5.25%, 12/01/43

     4,500        5,011,020   

Illinois Finance Authority, RB:

    

Carle Foundation, Series A, 6.00%, 8/15/41

     1,750        2,046,292   

Rush University Medical Center, Series B, 7.25%, 11/01/18 (b)

     1,600        1,800,128   

Illinois Finance Authority, Refunding RB, Northwestern Memorial Hospital, Series A, 6.00%, 8/15/39

     2,900        3,277,174   

Metropolitan Pier & Exposition Authority, Refunding RB, McCormick Place Expansion Project Refunding Bonds, Series B-2, 5.25%, 6/15/50

     250        263,880   

Railsplitter Tobacco Settlement Authority, RB:

    

5.50%, 6/01/23

     1,055        1,223,083   

6.00%, 6/01/28

     300        352,275   

State of Illinois, GO:

    

5.25%, 2/01/31

     730        792,634   

5.25%, 2/01/32

     1,500        1,622,790   

5.50%, 7/01/33

     1,500        1,647,000   
Municipal Bonds   

Par  

(000)

    Value  

Illinois (continued)

  

State of Illinois, GO (continued):

    

5.50%, 7/01/38

   $ 320      $ 349,786   
    

 

 

 
               30,014,538   

Indiana — 2.5%

  

Indiana Municipal Power Agency, RB, Series B, 6.00%, 1/01/19 (b)

     3,400        3,764,208   

Kansas — 1.8%

  

Kansas Development Finance Authority, Refunding RB, Adventist Health System/Sunbelt Obligated Group, Series C, 5.50%, 11/15/29

     2,500        2,809,175   

Kentucky — 1.0%

  

County of Louisville & Jefferson Kentucky Metropolitan Government Parking Authority, RB, Series A, 5.75%, 12/01/19 (b)

     1,300        1,486,303   

Louisiana — 1.5%

  

Louisiana Local Government Environmental Facilities & Community Development Authority, RB, Westlake Chemical Corp. Project, Series A-1, 6.50%, 11/01/35

     1,095        1,267,068   

Tobacco Settlement Financing Corp., Refunding RB, Asset-Backed, Series A, 5.50%, 5/15/29

     915        996,261   
    

 

 

 
               2,263,329   

Maine — 1.5%

  

Maine Health & Higher Educational Facilities Authority, RB, Maine General Medical Center, 7.50%, 7/01/32

     1,945        2,278,976   

Massachusetts — 2.5%

  

Commonwealth of Massachusetts, GO, Series E, 4.00%, 4/01/42

     1,895        2,023,348   

Massachusetts DFA, Refunding RB, Trustees of Deerfield Academy, 5.00%, 10/01/40

     375        426,079   

Massachusetts Health & Educational Facilities Authority, RB, Tufts University, Series O, 5.38%, 8/15/18 (b)

     1,000        1,080,060   
 

 

                
2    BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST    OCTOBER 31, 2016   


Schedule of Investments (continued)

  

BlackRock Municipal Income Investment Trust (BBF)

 

Municipal Bonds  

Par  

(000)

    Value  

Massachusetts (continued)

  

Metropolitan Boston Transit Parking Corp., Refunding RB, 5.25%, 7/01/36

  $ 300      $ 347,871   
   

 

 

 
              3,877,358   

Michigan — 4.2%

  

City of Lansing Michigan, RB, Board of Water & Light Utilities System, Series A, 5.50%, 7/01/41

    1,400        1,638,364   

Michigan Finance Authority, Refunding RB, Henry Ford Health System, 4.00%, 11/15/46

    1,455        1,465,767   

Michigan State Building Authority, Refunding RB, Facilities Program Series:

   

6.00%, 10/15/18 (b)

    1,450        1,592,970   

6.00%, 10/15/38

    50        54,595   

Royal Oak Hospital Finance Authority Michigan, Refunding RB, William Beaumont Hospital, Series V, 8.25%, 9/01/18 (b)

    1,525        1,729,320   
   

 

 

 
              6,481,016   

Mississippi — 1.7%

  

Mississippi Development Bank, RB, Jackson Water & Sewer System Project (AGM), 6.88%, 12/01/40

    2,000        2,663,880   

Nevada — 4.0%

  

City of Las Vegas Nevada, GO, Limited Tax, Performing Arts Center, 6.00%, 4/01/19 (b)

    2,600        2,910,622   

County of Clark Nevada Airport System, ARB, Series B, 5.75%, 7/01/42

    2,825        3,207,110   
   

 

 

 
              6,117,732   

New Jersey — 4.8%

  

New Jersey EDA, Refunding RB, School Facilities Construction, Series AA, 5.50%, 12/15/29

    750        814,305   

New Jersey Housing & Mortgage Finance Agency, RB, S/F Housing, Series CC, 5.25%, 10/01/29

    1,750        1,840,772   

New Jersey Transportation Trust Fund Authority, RB, Transportation System:

   

Series A, 5.88%, 12/15/38

    1,990        2,157,618   
Municipal Bonds  

Par  

(000)

    Value  

New Jersey (continued)

  

New Jersey Transportation Trust Fund Authority, RB, Transportation System (continued):

   

Series AA, 5.50%, 6/15/39

  $ 2,245      $ 2,519,541   
   

 

 

 
              7,332,236   

New York — 5.6%

  

Counties of New York Tobacco Trust IV, Refunding RB, Settlement Pass-Through Turbo, Series A, 6.25%, 6/01/41 (c)

    900        944,505   

Hudson Yards Infrastructure Corp., RB, Series A, 5.75%, 2/15/47

    1,620        1,892,792   

Metropolitan Transportation Authority, RB, Series A, 5.25%, 11/15/38

    500        588,940   

New York Liberty Development Corp., Refunding RB, 2nd Priority, Bank of America Tower at One Bryant Park Project, Class 3, 6.38%, 7/15/49

    1,480        1,653,116   

State of New York Dormitory Authority, ERB, Series B, 5.25%, 3/15/38

    3,250        3,560,407   
   

 

 

 
              8,639,760   

Ohio — 2.8%

  

County of Allen Ohio Hospital Facilities, Refunding RB, Catholic Healthcare Partners, Series A, 5.25%, 6/01/38

    2,405        2,661,638   

State of Ohio Turnpike Commission, RB, Junior Lien, Infrastructure Projects, Series A-1, 5.25%, 2/15/31

    1,385        1,643,413   
   

 

 

 
              4,305,051   

Oklahoma — 0.5%

  

Norman Regional Hospital Authority, Refunding RB, 4.00%, 9/01/37 (a)

    810        820,473   

Pennsylvania — 3.6%

  

Pennsylvania Economic Development Financing Authority, RB, American Water Co. Project, 6.20%, 4/01/39

    800        887,488   

Pennsylvania Turnpike Commission, RB:

   

Sub-Series A, 5.63%, 12/01/31

    2,000        2,294,240   

Sub-Series C (AGC), 6.25%, 6/01/18 (b)

    500        542,450   
 

 

                
   BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST    OCTOBER 31, 2016    3


Schedule of Investments (continued)

  

BlackRock Municipal Income Investment Trust (BBF)

 

Municipal Bonds   

Par  

(000)

    Value  

Pennsylvania (continued)

  

Township of Bristol Pennsylvania School District, GO, 5.25%, 6/01/37

   $ 1,530      $ 1,749,953   
    

 

 

 
               5,474,131   

Puerto Rico — 0.2%

    

Children’s Trust Fund Tobacco Settlement, Refunding RB, Asset-Backed:

    

5.63%, 5/15/43

     185        184,086   

Bonds, 5.50%, 5/15/39

     170        170,816   
    

 

 

 
               354,902   

Rhode Island — 2.0%

    

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

    

4.50%, 6/01/45

     2,870        2,973,291   

5.00%, 6/01/50

     125        129,765   
    

 

 

 
               3,103,056   

South Carolina — 3.7%

    

County of Charleston South Carolina, RB, Special Source, 5.25%, 12/01/38

     1,825        2,180,291   

State of South Carolina Public Service Authority, Refunding RB:

    

Series C, 5.00%, 12/01/46

     1,500        1,716,195   

Series E, 5.25%, 12/01/55

     1,500        1,767,870   
    

 

 

 
               5,664,356   

Texas — 11.3%

    

Central Texas Regional Mobility Authority, Refunding RB, Senior Lien, 6.00%, 1/01/21 (b)

     2,560        3,052,160   

City of Beaumont Texas, GO, Certificates of Obligation, 5.25%, 3/01/37

     1,140        1,342,259   

Conroe Texas ISD, GO, School Building, Series A, 5.75%, 2/15/18 (b)

     1,360        1,445,721   

County of Tarrant Texas Cultural Education Facilities Finance Corp., RB, Scott & White Healthcare, 6.00%, 8/15/20 (b)

     2,710        3,199,480   

Lower Colorado River Authority, Refunding RB:

    

5.50%, 5/15/19 (b)

     5        5,552   

5.50%, 5/15/19 (b)

     5        5,552   

5.50%, 5/15/19 (b)

     80        88,827   

5.50%, 5/15/33

     1,910        2,099,147   

North Texas Tollway Authority, RB, Special Projects, Series A, 5.50%, 9/01/41

     1,500        1,766,685   
Municipal Bonds   

Par  

(000)

    Value  

Texas (continued)

    

North Texas Tollway Authority, Refunding RB, 1st Tier, Series K-1 (AGC), 5.75%, 1/01/19 (b)

   $ 1,250      $ 1,377,787   

Red River Education Financing Corp., RB, Texas Christian University Project, 5.25%, 3/15/38

     520        611,775   

Texas Private Activity Bond Surface Transportation Corp., RB, Senior Lien, NTE Mobility Partners LLC, North Tarrant Express Managed Lanes Project, 6.88%, 12/31/39

     2,005        2,329,569   
    

 

 

 
               17,324,514   

Virginia — 1.2%

    

City of Lexington Virginia IDA, RB, Washington & Lee University, 5.00%, 1/01/43

     425        484,810   

Virginia Public School Authority, RB, Fluvanna County School Financing, 6.50%, 12/01/18 (b)

     1,200        1,339,260   
    

 

 

 
               1,824,070   

Wisconsin — 1.8%

    

Wisconsin Health & Educational Facilities Authority, Refunding RB, Froedtert & Community Health, Inc., Series C, 5.25%, 4/01/39

     2,565        2,747,474   
Total Municipal Bonds — 105.1%              161,277,839   
    
   

Municipal Bonds Transferred to

Tender Option Bond Trusts (d)

 

Alabama — 0.8%

    

Auburn University, Refunding RB, Series A, 4.00%, 6/01/41

     1,120        1,206,856   

California — 19.2%

    

California Educational Facilities Authority, RB, University of Southern California, Series B, 5.25%, 10/01/18 (b)(e)

     3,000        3,251,610   

Grossmont Union High School District, GO, Election of 2008, Series B, 5.00%, 8/01/20 (b)

     3,700        4,235,242   

Los Angeles Community College District California, GO, Election of 2008, Series C,
5.25%, 8/01/20 (b)(e)

     4,041        4,662,146   
 

 

 

                
4    BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST    OCTOBER 31, 2016   


Schedule of Investments (continued)

  

BlackRock Municipal Income Investment Trust (BBF)

 

Municipal Bonds Transferred to

Tender Option Bond Trusts (d)

  

Par  

(000)

    Value  

California (continued)

    

Los Angeles Community College District California, GO, Refunding, Election of 2008, Series A, 6.00%, 8/01/19 (b)

   $ 5,977      $ 6,789,698   

Los Angeles Unified School District California, GO, Series I, 5.00%, 1/01/34

     600        662,160   

San Diego Public Facilities Financing Authority Water, RB, Series B, 5.50%, 8/01/19 (b)

     6,448        7,236,836   

University of California, RB, Series O, 5.75%, 5/15/19 (b)

     2,311        2,587,313   
    

 

 

 
               29,425,005   

District of Columbia — 3.5%

    

District of Columbia, RB, Series A, 5.50%, 12/01/30 (e)

     2,129        2,413,984   

District of Columbia Water & Sewer Authority, Refunding RB, Senior Lien, Series A, 5.50%, 10/01/18 (b)

     2,698        2,934,439   
    

 

 

 
               5,348,423   

Illinois — 4.4%

    

State of Illinois Finance Authority, RB, University of Chicago, Series B, 6.25%, 7/01/18 (b)

     4,300        4,681,152   

State of Illinois Toll Highway Authority, RB, Senior Priority, Series B, 5.50%, 1/01/18 (b)

     2,000        2,108,310   
    

 

 

 
               6,789,462   

Nebraska — 1.4%

    

County of Sarpy Nebraska Hospital Authority No. 1, Refunding RB, Nebraska Medicine, 4.00%, 5/15/51

     2,100        2,176,332   

Nevada — 4.3%

    

County of Clark Nevada Water Reclamation District, GO (b):

    

Limited Tax, 6.00%, 7/01/18

     4,000        4,338,040   

Series B, 5.50%, 7/01/19

     1,994        2,228,803   
    

 

 

 
               6,566,843   

New Hampshire — 1.2%

    

New Hampshire Health & Education Facilities Authority, RB, Dartmouth College, 5.25%, 6/01/19 (b)(e)

     1,680        1,861,369   

Municipal Bonds Transferred to

Tender Option Bond Trusts (d)

  

Par  

(000)

    Value  

New Jersey — 3.8%

    

New Jersey Transportation Trust Fund Authority, RB, Transportation System:

    

Series A (AMBAC), 5.00%, 12/15/32

   $ 3,000      $ 3,108,960   

Series B, 5.25%, 6/15/36 (e)

     2,481        2,718,578   
    

 

 

 
               5,827,538   

New York — 14.9%

    

City of New York New York Municipal Water Finance Authority, RB, Water & Sewer System, Fiscal 2009, Series A :

    

5.75%, 6/15/18 (b)

     497        534,286   

5.75%, 6/15/40

     1,662        1,786,890   

City of New York New York Municipal Water Finance Authority, Refunding RB, Water & Sewer System, 2nd General Resolution :

    

Series FF, 5.00%, 6/15/45

     2,499        2,877,317   

Series FF-2, 5.50%, 6/15/40

     2,985        3,318,902   

City of New York New York Transitional Finance Authority, RB, Fiscal 2009, Series S-3, 5.25%, 1/15/39 (c)

     2,499        2,712,656   

Metropolitan Transportation Authority, Refunding RB, Series C-1, 5.25%, 11/15/56

     1,700        2,043,766   

New York Liberty Development Corp., RB, 1 World Trade Center Port Authority Consolidated Bonds, 5.25%, 12/15/43

     3,375        3,938,542   

New York Liberty Development Corp., Refunding RB, 4 World Trade Center Project, 5.75%, 11/15/51 (e)

     1,980        2,322,915   

New York State Dormitory Authority, ERB, Personal Income Tax, Series B, 5.25%, 3/15/38

     3,000        3,286,530   
    

 

 

 
               22,821,804   

Pennsylvania — 0.5%

    

County of Westmoreland Pennsylvania Municipal Authority, Refunding RB (BAM), 5.00%, 8/15/38

     660        757,442   

Texas — 5.2%

    

City of San Antonio Texas Public Service Board, Refunding RB, Series A, 5.25%, 2/01/19 (b)(e)

     3,074        3,364,561   
 

 

 

                
   BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST    OCTOBER 31, 2016    5


Schedule of Investments (continued)

  

BlackRock Municipal Income Investment Trust (BBF)

 

Municipal Bonds Transferred to

Tender Option Bond Trusts (d)

  

Par  

(000)

    Value  

Texas (continued)

  

County of Harris Texas Cultural Education Facilities Finance Corp., RB, Texas Children’s Hospital Project, 5.50%, 10/01/39

   $ 4,200      $ 4,680,186   
    

 

 

 
               8,044,747   

Virginia — 1.0%

  

County of Fairfax Virginia IDA, Refunding RB, Health Care, Inova Health System:

    

5.50%, 5/15/19 (b)

     476        526,887   

5.50%, 5/15/35

     883        978,886   
    

 

 

 
               1,505,773   
Total Municipal Bonds Transferred to
Tender Option Bond Trusts — 60.2%
        92,331,594   
Total Long-Term Investments
(Cost — $229,300,793) — 165.3%
        253,609,433   
Short-Term Securities   

    

Shares

    Value  

BlackRock Liquidity Funds, MuniCash, Institutional Class, 0.44% (g)(h)

     544,742      $ 544,797   
Total Short-Term Securities
(Cost — $544,797) — 0.4%
        544,797   
Total Investments (Cost — $229,845,590*) — 165.7%        254,154,230   
Other Assets Less Liabilities — 0.8%        935,496   

Liability for TOB Trust Certificates, Including Interest Expense and Fees Payable — (32.6)%

   

    (50,015,089

Preferred Shares, at Redemption Value — (33.9)%

  

    (51,702,212
    

 

 

 

Net Assets Applicable to Common Shares — 100.0%

  

  $ 153,372,425   
    

 

 

 

 

*   As of October 31, 2016, gross unrealized appreciation and depreciation based on cost for federal income tax purposes were as follows:

 

Tax cost

  $ 180,456,277   
 

 

 

 

Gross unrealized appreciation

  $ 24,503,785   

Gross unrealized depreciation

    (734,793
 

 

 

 

Net unrealized appreciation

  $ 23,768,992   
 

 

 

 
 
Notes to Schedule of Investments

 

(a)   When-issued security.

 

(b)   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.

 

(c)   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.

 

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

 

(e)   All or a portion of security is subject to a recourse agreement. The aggregate maximum potential amount the Trust could ultimately be required to pay under the agreements, which expire between February 1, 2017 to November 15, 2019, is $11,993,816.

 

(f)   Variable rate security. Rate as of period end.

 

(g)   During the period ended October 31, 2016, investments in issuers considered to be affiliates of the Trust for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

 

Affiliate      Shares Held
at July 31,
2016
       Net
Activity
       Shares Held
at October 31,
2016
       Value at
October 31,
2016
       Income  

BlackRock Liquidity Funds, MuniCash, Institutional Class

       40,725           504,017           544,742         $ 544,797         $ 322   

 

(h)   Current yield as of period end.

 

                
6   

BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST

  

OCTOBER 31, 2016

  


Schedule of Investments (continued)

  

BlackRock Municipal Income Investment Trust (BBF)

 

 

Derivative Financial Instruments Outstanding as of Period End

Futures Contracts

 

Contracts
Short
    Issue     Expiration     Notional
Value
    Unrealized
Appreciation
 
  (8     5-Year U.S. Treasury Note        December 2016      $ 966,375      $ 7,166   
  (20     10-Year U.S. Treasury Note        December 2016      $ 2,592,500        36,592   
  (13     Long U.S. Treasury Bond        December 2016      $ 2,115,344        78,991   
  (3     Ultra U.S. Treasury Bond        December 2016      $ 527,812        27,146   
  Total            $ 149,895   
       

 

 

 

 

Portfolio Abbreviations

 

AGC    Assured Guarantee Corp.
AGM    Assured Guaranty Municipal Corp.
AMBAC    American Municipal Bond Assurance Corp.
ARB    Airport Revenue Bonds
BAM    Build America Mutual Assurance Co.
DFA    Development Finance Agency
EDA    Economic Development Authority
ERB    Education Revenue Bonds
GARB    General Airport Revenue Bonds
GO    General Obligation Bonds
IDA    Industrial Development Authority
IDB    Industrial Development Board
ISD    Independent School District
LRB    Lease Revenue Bonds
RB    Revenue Bonds
S/F    Single-Family

 

                
   BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST    OCTOBER 31, 2016    7


Schedule of Investments (continued)

  

BlackRock Municipal Income Investment Trust (BBF)

 

 

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 methodologies are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

 

   

Level 1 — unadjusted price quotations in active markets/exchanges for identical assets or liabilities that the Trust 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 the Trust’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 Global Valuation Committee in determining the price for Fair Valued Investments. Level 3 Investments include equity or debt issued by privately-held companies. 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 methodologies may result in transfers into or out of an assigned level within the hierarchy. In accordance with the Trust’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 Trust’s policy regarding valuation of investments and derivative financial instruments, refer to the Trust’s most recent financial statements as contained in its semi-annual report.

The following tables summarize the Trust ‘s investments and derivative financial instruments categorized in the disclosure hierarchy:

 

     Level 1        Level 2        Level 3        Total  

Assets:

                
Investments:                 

Long-Term Investments1

            $ 253,609,433                   $ 253,609,433   

Short-Term Securities

  $ 544,797                               544,797   
 

 

 

 

Total

  $ 544,797         $ 253,609,433                   $ 254,154,230   
 

 

 

 

    

                                        
Derivative Financial Instruments2                 

Assets:

                

Interest rate contracts

  $ 149,895                             $ 149,895   

1    See above Schedule of Investments for values in each state or political sub-division.

 

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

       

       

 

                
8   

BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST

  

OCTOBER 31, 2016

  


Schedule of Investments (concluded)

  

BlackRock Municipal Income Investment Trust (BBF)

 

The Trust 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  

Assets:

                

Cash pledged for futures contracts

  $ 96,850                             $ 96,850   

Liabilities:

                

TOB Trust Certificates

            $ (49,928,961                  (49,928,961

VRDP Shares at Liquidation Value

              (52,000,000                  (52,000,000
 

 

 

 

Total

  $ 96,850         $ (101,928,961                $ (101,832,111
 

 

 

 

During the period ended October 31, 2016, there were no transfers between levels.

 

                
   BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST    OCTOBER 31, 2016    9


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 Municipal Income Investment Trust

 

By:  

/s/ John M. Perlowski

  
  John M. Perlowski   
 

Chief Executive Officer (principal executive officer) of

BlackRock Municipal Income Investment Trust

Date:   December 20, 2016   

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 Municipal Income Investment Trust

Date:   December 20, 2016   
By:  

/s/ Neal J. Andrews

  
  Neal J. Andrews   
 

Chief Financial Officer (principal financial officer) of

BlackRock Municipal Income Investment Trust

Date:   December 20, 2016