N-Q 1 d383173dnq.htm BLACKROCK MUNIYIELD QUALITY FUND III, INC. BlackRock MuniYield Quality Fund III, 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 811-06540

Name of Fund:    BlackRock MuniYield Quality Fund III, Inc. (MYI)

Fund Address:    100 Bellevue Parkway, Wilmington, DE 19809

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

Quality Fund III, 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: 07/31/2017

Date of reporting period: 4/30/2017


Item 1 – Schedule of Investments


Schedule of Investments April 30, 2017 (Unaudited)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

(Percentages shown are based on Net Assets)

 

Municipal Bonds    Par
(000)
    Value  
Alabama — 0.7%     

City of Birmingham Alabama, GO, Convertible CAB, Series A1, 0.00%, 3/01/45 (a)

   $ 2,920     $ 2,958,865  

City of Birmingham Alabama Special Care Facilities Financing Authority, RB, Children’s Hospital (AGC), 6.00%, 6/01/19 (b)

     3,605       3,968,709  
    

 

 

 
               6,927,574  
Alaska — 1.5%     

Alaska Industrial Development & Export Authority, RB, Providence Health Services, Series A, 5.50%, 10/01/41

     2,690       2,978,422  

Borough of Matanuska-Susitna Alaska, RB, Goose Creek Correctional Center (AGC) (b):

    

6.00%, 9/01/19

     6,450       7,171,561  

6.00%, 9/01/19

     3,700       4,113,919  
    

 

 

 
               14,263,902  
Arizona — 0.7%     

City of Phoenix & County of Maricopa Arizona IDA, Refunding RB, S/F Housing, Series A-2, AMT (Fannie Mae), 5.80%, 7/01/40

     120       121,665  

County of Maricopa Arizona IDA, Refunding RB, Banner Health Obligation Group, Series A:

    

3.25%, 1/01/37

     2,020       1,929,120  

5.00%, 1/01/38

     1,095       1,238,368  

State of Arizona, COP, Department of Administration, Series A (AGM), 5.00%, 10/01/27

     3,075       3,333,761  
    

 

 

 
               6,622,914  
California — 12.4%     

Alameda Corridor Transportation Authority, Refunding RB, CAB, Subordinate Lien, Series A (AMBAC), 5.40%, 10/01/17 (a)(b)

     10,000       10,191,200  

Alameda County Joint Powers Authority, Refunding RB, 5.00%, 12/01/17 (b)

     6,990       7,161,465  

California Health Facilities Financing Authority, RB:

    

St. Joseph Health System, Series A, 5.75%, 7/01/39

     1,550       1,675,473  

Sutter Health, Series B, 5.88%, 8/15/31

     3,200       3,637,568  
Municipal Bonds    Par
(000)
    Value  
California (continued)     

California Health Facilities Financing Authority, Refunding RB:

    

Kaiser Permanente, Sub-Series A-2, 5.00%, 11/01/47 (c)

   $ 3,625     $ 4,466,942  

St. Joseph Health System, Series A, 5.00%, 7/01/37

     2,965       3,314,603  

California State University, RB, Systemwide, Series A, 5.50%, 5/01/19 (b)

     1,525       1,661,427  

California State University, Refunding RB, Systemwide, Series A (AGM), 5.00%, 11/01/37

     1,065       1,065,373  

California Statewide Communities Development Authority, RB:

    

Kaiser Permanente, Series A, 5.00%, 4/01/42

     4,030       4,400,236  

St. Joseph Health System, Series E (AGM), 5.25%, 7/01/18 (b)

     4,000       4,203,840  

City of Redding California Electric System Revenue, COP, Refunding Series A (AGM):

    

5.00%, 6/1/18 (b)

     1,100       1,149,940  

5.00%, 6/1/30

     800       830,392  

City of San Jose CA, International Airport SJC, Refunding ARB, Norman Y Mineta San Jose International Airport SJC, AMT:

    

Series A, 5.00%, 3/01/36

     1,160       1,307,877  

Series A, 5.00%, 3/01/37

     1,275       1,433,011  

Series A-1, 5.75%, 3/01/34

     2,300       2,606,889  

County of Sacramento California, ARB, Senior Series A, 5.00%, 7/01/18 (b)

     10,000       10,488,900  

County of San Joaquin California Transportation Authority, Refunding RB, Limited Tax, Measure K, Series A, 6.00%, 3/01/21 (b)

     1,830       2,149,536  

Dublin Unified School District California, GO, CAB, Election of 2004, Series D, 0.00%, 8/01/34 (d)

     5,000       1,867,300  

Grossmont Union High School District, GO, CAB, Election of 2004, 0.00%, 8/01/31 (d)

     5,110       3,085,367  

Long Beach Unified School District, GO, CAB, Election of 2008, Series B, 0.00%, 8/01/34 (d)

     5,000       2,530,700  
 

 

                
   BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017    1


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds    Par
(000)
    Value  
California (continued)     

Los Angeles Community College District California, GO, Election of 2001, Series A (AGM), 5.00%, 8/01/17 (b)

   $ 1,200     $ 1,213,128  

Mount San Antonio Community College District, GO, Refunding, CAB, Election of 2008, Series A, 0.00%, 8/01/43 (a)

     3,975       2,936,491  

Norwalk-La Mirada Unified School District, GO, Refunding, CAB, Election of 2002, Series E (AGC), 0.00%, 8/01/38 (d)

     7,620       3,008,376  

Oceanside Unified School District, GO, Series A (AGC), 5.25%, 8/01/33

     2,500       2,619,175  

Poway Unified School District, GO, Refunding, CAB, School Facilities Improvement, Election of 2008, Series B (d):

    

0.00%, 8/01/35

     7,820       3,720,521  

0.00%, 8/01/36

     10,000       4,516,600  

Rio Hondo Community College District California, GO, CAB, Election of 2004, Series C (d):

    

0.00%, 8/01/37

     8,000       3,508,800  

0.00%, 8/01/38

     12,940       5,426,518  

San Diego California Unified School District, GO, CAB, Election of 2008, Series G (d):

    

0.00%, 7/01/34

     1,860       832,238  

0.00%, 7/01/35

     1,970       826,868  

0.00%, 7/01/36

     2,960       1,166,270  

0.00%, 7/01/37

     1,975       731,718  

San Diego California Unified School District, GO, Refunding, CAB, Series R-1, 0.00%, 7/01/31 (d)

     3,485       2,125,153  

San Marcos Unified School District, GO, Election of 2010, Series A:

    

5.00%, 8/01/34

     1,800       2,013,660  

5.00%, 8/01/38

     1,600       1,787,840  

State of California, GO, Refunding, Various Purposes:

    

5.00%, 9/01/41

     2,700       2,998,323  

5.00%, 10/01/41

     2,555       2,842,489  

State of California, GO, Series 2007-2 (NPFGC), 5.50%, 4/01/30

     10       10,036  

State of California Public Works Board, LRB, Various Capital Projects, Series I, 5.00%, 11/01/38

     5,040       5,650,949  
Municipal Bonds    Par
(000)
    Value  
California (continued)     

Walnut Valley Unified School District, GO, CAB, Election of 2007, Series B, 0.00%, 8/01/36 (d)

   $ 6,545     $ 2,907,485  
    

 

 

 
               120,070,677  
Colorado — 0.8%     

Denver Convention Center Hotel Authority, Refunding RB, 5.00%, 12/01/36

     1,500       1,648,575  

Regional Transportation District, COP, Series A, 5.00%, 6/01/39

     5,655       6,253,695  
    

 

 

 
               7,902,270  
Connecticut — 0.5%     

Connecticut State Health & Educational Facility Authority, RB, Yale University Issue, Series T-1, 4.70%, 7/01/29

     5,000       5,032,250  
District of Columbia — 1.1%     

Metropolitan Washington Airports Authority, RB, AMT, Series B (AMBAC), 5.00%, 10/01/32

     10,000       10,158,300  
Florida — 14.2%     

City of Tallahassee Florida Energy System Revenue, RB (NPFGC), 5.00%, 10/01/32

     3,300       3,352,635  

County of Brevard Florida Health Facilities Authority, Refunding RB, Health First, Inc. Project, 5.00%, 4/01/39

     4,535       4,872,087  

County of Broward Florida Airport System Revenue, RB, Series A , AMT, 5.00%, 10/01/40

     3,000       3,295,950  

County of Broward Florida School Board, COP, Series A (AGM), 5.25%, 7/01/18 (b)

     13,100       13,761,157  

County of Broward Florida Water & Sewer Utility, Refunding RB, Series A, 5.25%, 10/01/18 (b)

     2,250       2,387,092  

County of Highlands Florida Health Facilities Authority, RB, Adventist Health System/Sunbelt, Series B, 6.00%, 11/15/37

     1,750       1,932,123  

County of Lee Florida, Refunding ARB, Series A, AMT:

    

5.63%, 10/01/26

     2,600       2,950,324  

5.38%, 10/01/32

     3,440       3,826,243  

County of Miami-Dade Florida, GO, Building Better Communities Program (b):

    

Series B, 6.38%, 7/01/18

     6,000       6,381,540  
 

 

                
2    BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017   


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds    Par
(000)
    Value  
Florida (continued)     

County of Miami-Dade Florida, GO, Building Better Communities Program (b) (continued):

    

Series B-1, 5.75%, 7/01/18

   $ 3,700     $ 3,908,310  

County of Miami-Dade Florida, RB, Seaport:

    

Department, Series A, 6.00%, 10/01/38

     5,695       6,792,882  

Department, Series B, AMT, 6.25%, 10/01/38

     1,165       1,382,482  

Department, Series B, AMT, 6.00%, 10/01/42

     1,865       2,157,842  

Series B, AMT, 6.00%, 10/01/30

     1,820       2,145,598  

County of Miami-Dade Florida, Refunding RB, Water & Sewer System, Series C (BHAC), 6.00%, 10/01/18 (b)

     20,095       21,521,745  

County of Miami-Dade Florida Aviation, Refunding ARB, AMT:

    

5.00%, 10/01/34

     530       590,367  

Miami International Airport, Series A (AGM), 5.50%, 10/01/18 (b)

     19,020       20,216,548  

County of Miami-Dade Florida Educational Facilities Authority, RB, University Miami, Series A, 5.00%, 4/01/40

     14,360       15,672,935  

County of Miami-Dade Florida Health Facilities Authority, Refunding RB, Nicklaus Children’s Hospital Project, 5.00%, 8/01/42

     1,675       1,860,892  

County of Miami-Dade Florida Transit System, RB, Surtax (AGM), 5.00%, 7/01/18 (b)

     2,800       2,933,168  

County of Orange Florida Health Facilities Authority, Refunding RB, Presbyterian Retirement Communities Project:

    

5.00%, 8/1/41

     1,550       1,656,470  

5.00%, 8/1/47

     4,590       4,883,485  

County of Palm Beach Florida Solid Waste Authority, Refunding RB, Series B:

    

5.00%, 10/1/21 (b)

     50       57,615  

5.00%, 10/1/31

     3,050       3,445,615  
Municipal Bonds    Par
(000)
    Value  
Florida (continued)     

County of Sarasota Florida Public Hospital District, RB, Sarasota Memorial Hospital Project, Series A, 5.63%, 7/01/39

   $ 5,135     $ 5,471,342  
    

 

 

 
               137,456,447  
Georgia — 1.8%     

City of Atlanta Georgia Water & Wastewater Revenue, Refunding RB, Series A, 5.00%, 11/01/38 (c)

     2,715       3,163,409  

County of Gainesville Georgia & Hall Hospital Authority, Refunding RB, Northeast Georgia Health System, Inc. Project, Series A, 5.50%, 8/15/54

     1,405       1,634,704  

Metropolitan Atlanta Rapid Transit Authority, Refunding RB, 3rd Indenture, Series B, 5.00%, 7/01/17 (b)

     10,000       10,073,300  

Private Colleges & Universities Authority, RB, Savannah College of Art & Design:

    

5.00%, 4/01/33

     395       431,399  

5.00%, 4/01/44

     1,775       1,906,936  
    

 

 

 
               17,209,748  
Hawaii — 0.4%     

State of Hawaii Department of Transportation, COP, AMT:

    

5.00%, 8/01/27

     2,000       2,224,100  

5.00%, 8/01/28

     1,775       1,961,712  
    

 

 

 
               4,185,812  
Illinois — 13.7%     

City of Chicago Illinois, GARB, O’Hare International Airport, 3rd Lien, Series A, 5.75%, 1/01/39

     9,000       10,142,100  

City of Chicago Illinois, GO, Refunding, Series A:

    

5.00%, 1/01/35

     5,000       4,784,650  

Project, 5.25%, 1/01/33

     2,340       2,303,005  

City of Chicago Illinois, RB:

    

O’Hare International Airport, Senior Lien, Series D, 5.25%, 1/01/42

     8,285       9,576,300  

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

     1,620       1,734,275  

City of Chicago Illinois, Refunding GARB, O’Hare International Airport, AMT, Series B, 5.00%, 1/01/31

     2,425       2,632,774  
 

 

                
   BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017    3


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds    Par
(000)
    Value  
Illinois (continued)     

City of Chicago Illinois, Refunding RB, Series A:

    

Midway International Airport, 2nd Lien, AMT, 5.00%, 1/01/34

   $ 3,035     $ 3,313,188  

Sales Tax Receipts, 5.00%, 1/01/41

     1,470       1,496,240  

Waterworks, 2nd Lien (AMBAC), 5.00%, 11/01/36

     3,500       3,510,115  

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

     3,250       3,374,930  

County of Cook Illinois Forest Preserve District, GO, Refunding, Limited Tax Project, Series B, 5.00%, 12/15/37

     615       654,686  

Illinois Finance Authority, RB, Carle Foundation, Series A, 5.75%, 8/15/34

     8,700       9,792,024  

Illinois Finance Authority, Refunding RB:

    

Northwestern Memorial Hospital, Series A, 6.00%, 8/15/39

     5,250       5,768,857  

Silver Cross Hospital and Medical Centers, 4.13%, 8/15/37

     1,965       1,930,396  

Silver Cross Hospital and Medical Centers, 5.00%, 8/15/44

     985       1,038,249  

Metropolitan Pier & Exposition Authority, RB, CAB, McCormick Place Expansion Project, Series A (NPFGC) (d):

    

0.00%, 12/15/26

     8,500       5,839,500  

0.00%, 6/15/32

     14,000       7,150,640  

0.00%, 12/15/33

     20,000       9,448,800  

0.00%, 12/15/34

     41,880       18,686,856  

Metropolitan Pier & Exposition Authority, Refunding RB, CAB, McCormick Place Expansion Project, Series B (AGM), 0.00%, 6/15/44 (d)

     9,430       2,535,821  

Railsplitter Illinois Tobacco Settlement Authority, RB, 6.00%, 6/01/28

     1,700       1,933,903  

Regional Transportation Authority, RB, Series C (NPFGC), 7.75%, 6/01/20

     560       617,327  

State of Illinois, GO:

    

5.25%, 7/01/29

     3,160       3,264,849  

5.25%, 2/01/33

     5,860       5,966,183  
Municipal Bonds    Par
(000)
    Value  
Illinois (continued)     

State of Illinois, GO (continued):

    

5.50%, 7/01/33

   $ 2,235     $ 2,326,076  

5.25%, 2/01/34

     5,360       5,444,849  

5.50%, 7/01/38

     1,200       1,243,692  

State of Illinois Toll Highway Authority, RB, Series B:

    

5.50%, 1/01/18 (b)

     4,000       4,124,600  

(BHAC), 5.50%, 1/01/18 (b)

     2,000       2,062,300  
    

 

 

 
               132,697,185  
Indiana — 2.8%     

City of Indianapolis Indiana, Refunding RB, Series B (AGC), 5.25%, 8/15/18 (b)

     5,000       5,279,350  

Indiana Finance Authority, RB, Series A:

    

CWA Authority Project, 1st Lien, 5.25%, 10/01/38

     2,900       3,275,202  

Private Activity Bond, Ohio River Bridges East End Crossing Project, AMT, 5.00%, 7/01/44

     1,400       1,486,478  

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

     5,000       5,412,400  

Indianapolis Local Public Improvement Bond Bank, Refunding RB, Waterworks Project, Series A:

    

5.75%, 1/01/19 (b)

     565       609,556  

5.75%, 1/01/38

     2,335       2,495,274  

(AGC), 5.25%, 1/01/19 (b)

     265       283,704  

(AGC), 5.50%, 1/01/19 (b)

     830       892,018  

(AGC), 5.25%, 1/01/29

     1,085       1,160,831  

(AGC), 5.50%, 1/01/38

     3,420       3,638,914  

State of Indiana Finance Authority, RB, Private Activity Bond, Ohio River Bridges, Series A, AMT, 5.00%, 7/01/40

     2,425       2,574,792  
    

 

 

 
               27,108,519  
Iowa — 2.5%     

Iowa Finance Authority, RB, Iowa Health Care Facilities, Series A (AGC), 5.63%, 8/15/19 (b)

     12,650       13,939,541  

Iowa Student Loan Liquidity Corp., RB, Senior Series A-2, AMT:

    

5.60%, 12/01/26

     2,580       2,770,559  

5.70%, 12/01/27

     2,570       2,744,092  

5.75%, 12/01/28

     1,360       1,451,405  

5.80%, 12/01/29

     1,735       1,848,105  
 

 

                
4    BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017   


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds    Par
(000)
    Value  
Iowa (continued)     

Iowa Student Loan Liquidity Corp., RB, Senior Series A-2, AMT (continued):

    

5.85%, 12/01/30

   $ 1,805     $ 1,924,094  
    

 

 

 
               24,677,796  
Kentucky — 1.9%     

Kentucky Economic Development Finance Authority, RB, Catholic Health Initiatives, Series A, 5.38%, 1/01/40

     1,000       1,072,280  

Kentucky Public Transportation Infrastructure Authority, RB, Downtown Crossing Project, Convertible CAB, 1st Tier, Series C, 0.00%, 7/01/39 (a)

     8,225       6,799,690  

Kentucky State Property & Building Commission, Refunding RB, Project No. 93 (AGC):

     10,000    

5.25%, 2/01/19 (b)

     3,545       3,803,431  

5.25%, 2/01/19 (b)

     5,315       5,702,463  

5.25%, 2/01/27

     685       731,272  

5.25%, 2/01/28

     455       485,403  
    

 

 

 
               18,594,539  
Louisiana — 2.7%     

City of New Orleans Louisiana Aviation Board, RB, AMT:

    

Series A (AGM), 5.25%, 1/01/32

     6,405       6,545,013  

Series B, 5.00%, 1/01/40

     4,825       5,217,080  

Jefferson Sales Tax District, RB, Series B (AGM:

     3,375    

5.00%, 2/01/34

     670       770,446  

5.00%, 2/01/35

     895       1,024,014  

5.00%, 2/01/36

     805       917,966  

5.00%, 2/01/37

     1,005       1,142,193  

Louisiana Local Government Environmental Facilities & Community Development Authority, RB, East Baton Rouge Sewerage Commission Projects, Series A, 5.00%, 2/01/44

     8,155       8,854,454  

Louisiana Public Facilities Authority, RB, Provident Group-Flagship Properties LLC, Series A, 5.00%, 7/01/56

     1,990       2,112,982  
    

 

 

 
               26,584,148  
Municipal Bonds    Par
(000)
    Value  
Massachusetts — 2.0%     

Massachusetts Development Finance Agency, RB, Emerson College Issue, Series A, 5.00%, 1/01/47

   $ 5,950     $ 6,423,144  

Massachusetts Development Finance Agency, Refunding RB, Emmanuel College Issue, Series A, 5.00%, 10/01/43

     1,045       1,129,760  

Massachusetts HFA, RB, M/F Housing, Series B, 7.00%, 12/01/38

     3,150       3,290,711  

Massachusetts HFA, Refunding RB, AMT:

    

Series A, 4.45%, 12/01/42

     2,235       2,263,407  

Series C, 5.35%, 12/01/42

     2,395       2,546,723  

Massachusetts School Building Authority, RB, Dedicated Sales Tax, Senior Series A, 5.00%, 5/15/43

     3,495       3,928,240  
    

 

 

 
               19,581,985  
Michigan — 7.6%     

City of Detroit Michigan Water Supply System Revenue, RB, 2nd Lien, Series B (AGM), 6.25%, 7/01/19 (b)

     1,075       1,192,906  

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

     3,185       3,621,791  

Michigan Finance Authority, Refunding RB:

    

Henry Ford Health System, 3.25%, 11/15/42

     2,505       2,127,296  

Trinity Health Credit Group, 5.00%, 12/01/21 (b)

     60       69,470  

Trinity Health Credit Group, 5.00%, 12/01/39

     16,040       17,961,111  

Royal Oak Hospital Finance Authority Michigan, Refunding RB, William Beaumont Hospital, Series D, 5.00%, 9/01/39

     1,330       1,455,472  

State of Michigan, RB, GAB (AGM) (b):

    

5.25%, 9/15/17

     10,000       10,167,800  

5.25%, 9/15/17

     6,650       6,761,587  

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

    

Series I, 6.25%, 10/15/18 (b)

     1,890       2,032,487  

Series I, 6.25%, 10/15/18 (b)

     1,130       1,215,191  

Series I, 6.25%, 10/15/38

     105       112,399  
 

 

                
   BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017    5


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds    Par
(000)
    Value  
Michigan (continued)     

State of Michigan Building Authority, Refunding RB, Facilities Program (continued):

    

Series I (AGC), 5.25%, 10/15/24

   $ 1,750     $ 1,911,245  

Series I (AGC), 5.25%, 10/15/25

     3,250       3,546,140  

Series I-A, 5.38%, 10/15/36

     2,075       2,334,728  

Series I-A, 5.38%, 10/15/41

     1,900       2,128,418  

Series II-A (AGM), 5.25%, 10/15/36

     8,040       8,993,223  

State of Michigan HDA, RB, S/F Housing, Series C, AMT, 5.50%, 12/01/28

     1,515       1,586,023  

Wayne County Airport Authority, Refunding RB, AMT (AGC), 5.38%, 12/01/32

     5,000       5,259,550  

Western Michigan University, Refunding RB, General, University and College Improvements (AGM), 5.00%, 11/15/39

     1,080       1,187,298  
    

 

 

 
               73,664,135  
Minnesota — 0.6%     

City of Minneapolis Minnesota, Refunding RB, Fairview Health Services, Series B (AGC):

    

6.50%, 11/15/18 (b)

     845       916,174  

6.50%, 11/15/38

     4,655       4,996,305  
    

 

 

 
               5,912,479  
Nebraska — 0.8%     

Central Plains Nebraska Energy Project, RB, Gas Project No. 3, 5.25%, 9/01/37

     6,825       7,429,763  
Nevada — 1.1%     

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

     2,250       2,461,680  

County of Clark Nevada, ARB, Las Vegas-McCarran International Airport, Series A:

    

5.25%, 7/01/42

     2,000       2,163,520  

(AGM), 5.25%, 7/01/39

     5,170       5,595,543  
    

 

 

 
               10,220,743  
New Jersey — 8.5%     

New Jersey EDA, RB:

    

Goethals Bridge Replacement Project, AMT, Private Activity Bond, 5.38%, 1/01/43

     4,920       5,455,689  
Municipal Bonds    Par
(000)
    Value  
New Jersey (continued)     

New Jersey EDA, RB (continued):

    

Goethals Bridge Replacement Project, AMT, Private Activity Bond, 5.13%, 1/01/34

   $ 1,930     $ 2,076,468  

Series WW, 5.25%, 6/15/33

     445       458,595  

Series WW, 5.00%, 6/15/34

     570       574,891  

Series WW, 5.00%, 6/15/36

     2,635       2,647,068  

Series WW, 5.25%, 6/15/40

     1,025       1,044,629  

New Jersey EDA, Refunding RB, School Facilities Construction:

    

Series N-1 (AMBAC), 5.50%, 9/01/24

     6,325       7,095,322  

New Jersey EDA, Refunding RB, School Facilities Construction (continued):

    

Series N-1 (NPFGC), 5.50%, 9/01/28

     1,685       1,980,279  

New Jersey Higher Education Student Assistance Authority, Refunding RB, Series 1, AMT:

    

5.50%, 12/01/25

     900       985,230  

5.50%, 12/01/26

     1,295       1,413,363  

5.75%, 12/01/28

     145       158,572  

5.88%, 12/01/33

     6,895       7,522,721  

New Jersey Housing & Mortgage Finance Agency, Refunding RB, M/F Housing, Series 2, AMT, 4.35%, 11/01/33

     2,645       2,766,194  

New Jersey Transportation Trust Fund Authority, RB:

    

CAB, Transportation System, Series A, 0.00%, 12/15/35 (d)

     18,525       6,765,886  

CAB, Transportation System, Series C (AGC) (AMBAC), 0.00%, 12/15/25 (d)

     8,550       6,175,408  

Federal Highway Reimbursement Revenue Notes, Series A, 5.00%, 6/15/28

     4,205       4,505,069  

Federal Highway Reimbursement Revenue Notes, Series A, 5.00%, 6/15/29

     2,145       2,281,079  

Transportation Program, Series AA, 5.25%, 6/15/33

     4,150       4,296,910  

Transportation Program, Series AA, 5.00%, 6/15/38

     4,990       5,010,509  

Transportation System, Series A, 5.50%, 6/15/41

     2,980       3,067,254  

Transportation System, Series A (NPFGC), 5.75%, 6/15/25

     4,000       4,720,160  
 

 

                
6    BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017   


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds    Par
(000)
    Value  
New Jersey (continued)     

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

    

Transportation System, Series AA, 5.50%, 6/15/39

   $ 5,625     $ 5,883,300  

Transportation System, Series B, 5.50%, 6/15/31

     1,000       1,048,390  

Transportation System, Series B, 5.00%, 6/15/42

     2,575       2,575,798  

Transportation System, Series D, 5.00%, 6/15/32

     1,825       1,856,153  
    

 

 

 
               82,364,937  
New Mexico — 0.1%     

New Mexico Hospital Equipment Loan Council, Refunding RB, Presbyterian Healthcare Services, 5.00%, 8/01/44

     1,040       1,154,140  
New York — 3.7%     

City of New York New York Transitional Finance Authority, RB:

    

Fiscal 2009, Series S-4, 5.50%, 1/15/34

     7,250       7,782,802  

Future Tax Secured Fiscal, Sub-Series E-1, 5.00%, 2/01/37

     3,595       4,136,802  

City of New York New York Transitional Finance Authority, Refunding RB, Future Tax Secured, Series B, 5.00%, 11/01/32

     4,150       4,777,605  

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

     1,920       2,181,869  

Metropolitan Transportation Authority, Refunding RB, Series B, 5.00%, 11/15/37

     3,855       4,391,269  

New York Transportation Development Corp., ARB, LaGuardia Airport Terminal B Redevelopment Project, Series A, AMT, 5.25%, 1/01/50

     8,300       8,994,378  

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

     3,250       3,490,825  
    

 

 

 
               35,755,550  
North Carolina — 0.4%     

North Carolina Housing Finance Agency, RB, Series 31-A, AMT, 5.25%, 7/01/38

     3,915       3,924,513  
Municipal Bonds    Par
(000)
    Value  
Ohio — 2.2%     

County of Lucas Ohio, Refunding RB, Promedica Healthcare, Series A, 6.50%, 11/15/37

   $ 3,000     $ 3,531,090  

County of Montgomery Ohio, RB, Catholic Health Initiatives, Series D-2, 5.45%, 10/01/38

     11,135       12,141,270  

State of Ohio Turnpike Commission, RB, Junior Lien, Infrastructure Projects, Series A-1:

    

5.25%, 2/15/32

     1,950       2,228,596  

5.25%, 2/15/33

     2,730       3,109,006  
    

 

 

 
               21,009,962  
Oregon — 0.4%     

Counties of Washington & Multnomah Oregon School District No. 48J Beaverton, GO, Convertible CAB, Series D, 0.00%, 6/15/36 (a)(c)

     2,340       2,572,947  

County of Clackamas Oregon School District No. 12 North Clackamas, GO, CAB, Series A, 0.00%, 6/15/38 (d)

     2,800       1,110,592  
    

 

 

 
               3,683,539  
Pennsylvania — 5.6%     

Commonwealth Financing Authority, RB, Series B, 5.00%, 6/01/42

     3,305       3,587,214  

Pennsylvania Economic Development Financing Authority, RB, Pennsylvania Bridge Finco LP, AMT:

    

5.00%, 12/31/34

     7,115       7,828,492  

5.00%, 12/31/38

     5,850       6,365,444  

5.00%, 6/30/42

     6,805       7,366,277  

Pennsylvania Higher Educational Facilities Authority, Refunding RB, Thomas Jefferson University, Series A, 5.25%, 9/01/50

     9,075       10,011,449  

Pennsylvania Turnpike Commission, RB:

    

Series A, 5.00%, 12/01/38

     1,775       1,946,146  

Series A-1, 5.00%, 12/01/41

     2,320       2,558,519  

Series B, 5.00%, 12/01/40

     920       1,015,864  

Series C, 5.50%, 12/01/33

     1,565       1,821,785  

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

     5,695       6,026,164  

Subordinate, Special Motor License Fund, 6.00%, 12/01/20 (b)

     2,575       3,003,068  
 

 

                
   BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017    7


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds    Par
(000)
    Value  
Pennsylvania (continued)     

Pennsylvania Turnpike Commission, Refunding RB, Series A-1, 5.00%, 12/01/40

   $ 2,165     $ 2,379,248  
    

 

 

 
               53,909,670  
Rhode Island — 1.2%     

Rhode Island Commerce Corp., RB, Airport Corp., Series D:

    

5.00%, 7/01/41

     295       325,556  

5.00%, 7/01/46

     325       357,334  

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

    

4.50%, 6/01/45

     3,000       2,929,710  

5.00%, 6/01/50

     7,465       7,629,081  
    

 

 

 
               11,241,681  
South Carolina — 4.1%     

South Carolina Jobs EDA, Refunding RB, Palmetto Health, Series A (AGM), 6.50%, 8/01/39

     3,600       4,189,176  

South Carolina Public Service Authority, Refunding RB, Series B (AGM), 5.00%, 12/01/56

     7,155       7,713,376  

State of South Carolina Ports Authority, RB, AMT, 5.25%, 7/01/50

     6,530       7,117,766  

State of South Carolina Public Service Authority, RB, Santee Cooper:

    

Series A, 5.50%, 12/01/54

     11,450       12,468,821  

Series E, 5.50%, 12/01/53

     2,025       2,199,069  

State of South Carolina Public Service Authority, Refunding RB, Santee Cooper, Series B, 5.00%, 12/01/38

     5,870       6,213,923  
    

 

 

 
               39,902,131  
Texas — 15.6%     

City of Houston Texas Combined Utility System Revenue, Refunding RB, Combined 1st Lien:

    

Series A (AGC), 5.38%, 5/15/19 (b)

     3,460       3,761,608  

Series A (AGC), 6.00%, 5/15/19 (b)

     5,400       5,938,866  

Series A (AGC), 6.00%, 11/15/35

     300       329,643  

Series A (AGC), 5.38%, 11/15/38

     190       204,366  

Series A (AGM), 5.00%, 11/15/17 (b)

     10,000       10,221,600  
Municipal Bonds    Par
(000)
    Value  
Texas (continued)     

City of San Antonio Texas Electric & Gas Revenue, RB, Junior Lien, 5.00%, 2/01/38

   $ 1,450     $ 1,628,336  

City of San Antonio Texas Electric & Gas Revenue, Refunding RB, 5.00%, 2/01/42

     7,450       8,572,789  

County of Midland Texas Fresh Water Supply District No. 1, RB, CAB, City of Midland Project, Series A, 0.00%, 9/15/36 (d)

     5,810       2,556,865  

County of Tarrant Texas Cultural Education Facilities Finance Corp., Refunding RB, Cook Children’s Medical Center, 5.25%, 12/01/39

     2,095       2,347,029  

Dallas ISD, GO, School Building (PSF-GTD), 6.38%, 2/15/18 (b)

     10,000       10,432,300  

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

     10,980       11,803,610  

Dallas-Fort Worth International Airport, Refunding ARB, Series F:

    

5.25%, 11/01/33

     2,745       3,160,209  

5.00%, 11/01/35

     5,000       5,463,050  

Grand Prairie ISD, GO, Refunding, CAB, 0.00%, 8/15/18 (b)(d)

     10,000       5,058,800  

Leander ISD, GO, Refunding, CAB, Series D, 0.00%, 8/15/38 (d)

     9,685       3,859,666  

North Texas Tollway Authority, RB, CAB, Special Project System, Series B, 0.00%, 9/01/43 (d)

     24,100       5,789,061  

North Texas Tollway Authority, Refunding RB:

    

1st Tier System, Series A, 6.00%, 1/01/19 (b)

     5,100       5,518,863  

1st Tier System, Series A (NPFGC), 5.13%, 1/01/18 (b)

     17,540       18,037,434  

1st Tier System, Series A, 5.13%, 1/01/28

     2,460       2,525,510  

1st Tier System, Series A (NPFGC), 6.00%, 1/01/28

     1,175       1,269,047  

1st Tier System, Series S, 5.75%, 1/01/18 (b)

     8,540       8,817,977  

1st Tier System, Series SE, 5.75%, 1/01/40

     1,460       1,502,690  

Series B, 5.00%, 1/01/40

     1,710       1,889,054  

San Antonio Public Facilities Corp., Refunding RB, Convention Center Refinancing and Expansion Project, CAB (d):

    

0.00%, 9/15/35

     680       293,563  

0.00%, 9/15/36

     12,195       4,959,950  

0.00%, 9/15/37

     8,730       3,340,622  
 

 

                
8    BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017   


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds    Par
(000)
    Value  
Texas (continued)     

Texas Municipal Gas Acquisition & Supply Corp. III, RB:

    

5.00%, 12/15/32

   $ 3,930     $ 4,220,427  

Natural Gas Utility Improvements, 5.00%, 12/15/31

     1,665       1,795,086  

Texas Private Activity Bond Surface Transportation Corp., RB, Senior Lien, AMT, Blueridge Transportation Group, 5.00%, 12/31/45

     3,630       3,877,675  

Texas Transportation Commission, Refunding RB, Central Texas Turnpike System, 1st Tier, Series A, 5.00%, 8/15/41

     11,345       12,378,416  
    

 

 

 
               151,554,112  
Utah — 2.3%     

Salt Lake City Corp. Airport Revenue, RB, Series A, AMT, 5.00%, 7/01/42

     3,490       3,944,293  

Utah Transit Authority, Refunding RB, CAB (d):

    

Sub-Series A (AGC), 0.00%, 6/15/20

     10,000       8,683,700  

Sub-Series A (NPFGC), 0.00%, 6/15/24

     13,930       9,908,688  
    

 

 

 
               22,536,681  
Washington — 1.3%     

Port of Seattle Washington, RB, Series C, AMT, 5.00%, 4/01/40

     2,830       3,103,435  

Washington Health Care Facilities Authority, RB:

    

MultiCare Health System, Remarketing, Series B, 5.00%, 8/15/44

     1,000       1,090,070  

Providence Health & Services, Series A, 5.25%, 10/01/39

     2,725       2,924,688  

Washington Health Care Facilities Authority, Refunding RB, Catholic Health Initiatives, Series D, 6.38%, 10/01/36

     5,400       5,727,024  
    

 

 

 
               12,845,217  
Wisconsin — 0.5%     

Public Finance Authority, RB, KU Campus Development Corp., Central District Development Project, 5.00%, 3/01/46

     875       967,024  
Municipal Bonds    Par
(000)
    Value  
Wisconsin (continued)     

State of Wisconsin Health & Educational Facilities Authority, RB, Ascension Health Senior Credit Group, Series E, 5.00%, 11/15/33

   $ 3,745     $ 4,049,955  
    

 

 

 
               5,016,979  
Total Municipal Bonds - 115.7%              1,121,200,298  
    
     

Municipal Bonds Transferred to

Tender Option Bond Trusts (e)

 
Arizona — 1.1%     

Arizona School Facilities Board, COP (AGC), 5.13%, 9/01/18 (b)(f)

     10,000       10,552,800  
California — 6.9%     

California State University, RB, Systemwide, Series A (AGM):

    

5.00%, 11/01/18 (b)(f)

     7,793       8,109,325  

5.00%, 11/01/33

     204       212,199  

California State University, Refunding RB, Systemwide, Series A (AGM):

    

5.00%, 5/01/18 (b)

     7,840       7,842,703  

5.00%, 5/01/18 (b)

     5,040       5,041,738  

5.00%, 11/01/37

     5,555       5,556,915  

City of Riverside California, RB, Issue D (AGM), 5.00%, 10/01/38

     20,000       20,998,200  

County of San Diego California Water Authority Financing Corp., COP, Refunding, Series A (AGM) (b):

    

5.00%, 5/01/18

     1,554       1,619,802  

5.00%, 5/01/18

     7,816       8,143,925  

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

     5,248       5,830,813  

San Diego Community College District California, GO, Election of 2002, 5.25%, 8/01/19 (b)

     1,047       1,145,285  

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

     2,206       2,416,200  
    

 

 

 
               66,917,105  
Colorado — 0.3%     

Colorado Health Facilities Authority, Refunding RB, Catholic Health Initiatives, Series A,
5.50%, 7/01/34 (f)

     2,469       2,564,342  
 

 

                
   BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017    9


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds Transferred to
Tender Option Bond Trusts (e)
  

Par

(000)

    Value  
Connecticut — 0.4%     

Connecticut State Health & Educational Facility Authority, Refunding RB, Trinity Health Credit Group, 5.00%, 12/01/45

   $ 3,932     $ 4,384,134  
District of Columbia — 1.6%     

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

     2,594       2,879,634  

District of Columbia Water & Sewer Authority, Refunding RB, Senior Lien, Series A, 6.00%, 10/01/18 (b)(f)

     4,277       4,582,525  

Metropolitan Washington Airports Authority, Refunding ARB, Series A, AMT, 5.00%, 10/01/30

     6,880       7,682,621  
    

 

 

 
               15,144,780  
Florida — 4.6%     

City of Miami Beach Florida, RB, 5.00%, 9/01/45

     8,760       9,824,252  

County of Miami-Dade Florida, Refunding RB, Transit System Sales Surtax, 5.00%, 7/01/42

     4,840       5,373,562  

County of Miami-Dade Florida Water & Sewer System (AGC), 5.00%, 10/01/39

     11,702       12,896,632  

County of Orange Florida School Board, COP, Series A (AGC), 5.50%, 8/01/19 (b)

     12,013       13,193,284  

State of Florida Board of Education, GO, Refunding, Series C, 5.00%, 6/01/18 (f)

     3,299       3,344,039  
    

 

 

 
               44,631,769  
Illinois — 4.5%     

State of Illinois, RB, Build Illinois, Series B, 5.25%, 6/15/19 (b)(f)

     3,499       3,805,931  

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

     10,000       10,622,500  

State of Illinois Toll Highway Authority, RB:

    

Senior Priority, Series A, 5.00%, 1/01/40

     7,621       8,450,425  

Senior, Series B, 5.00%, 1/01/40

     2,939       3,268,513  

Senior, Series C, 5.00%, 1/01/36

     10,000       11,108,085  

Series A, 5.00%, 1/01/38

     5,836       6,440,343  
    

 

 

 
               43,695,797  
Municipal Bonds Transferred to
Tender Option Bond Trusts (e)
  

Par

(000)

    Value  
Kansas — 1.6%     

County of Wyandotte Kansas Unified School District, GO, Series A, 5.50%, 9/01/47

   $ 13,470     $ 16,011,517  
Massachusetts — 0.5%     

Commonwealth of Massachusetts, GO, Series A, 5.00%, 3/01/46

     4,204       4,708,914  
Michigan — 0.9%     

Michigan Finance Authority, RB, Beaumont Health Credit Group, 5.00%, 11/01/44

     5,591       6,138,916  

Michigan State Building Authority, Refunding RB, Facilities Program, Series I, 5.00%, 10/15/45

     2,410       2,659,796  
    

 

 

 
               8,798,712  
Nevada — 1.7%     

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

    

5.50%, 7/01/19

     510       558,258  

Limited Tax, 5.75%, 7/01/19

     4,813       5,296,221  

Las Vegas Valley Water District Nevada, GO, Refunding, Water Improvement, Series A, 5.00%, 6/01/46

     9,840       11,094,994  
    

 

 

 
               16,949,473  
New Jersey — 2.1%     

County of Hudson New Jersey Improvement Authority, RB, Hudson County Vocational-Technical Schools Project, 5.25%, 5/01/51

     2,320       2,650,623  

Garden State Preservation Trust, RB, Election of 2005, Series A (AGM), 5.75%, 11/01/28

     10,000       12,324,900  

New Jersey Transportation Trust Fund Authority, RB, Transportation System, Series B, 5.25%, 6/15/36 (f)

     4,961       5,075,299  
    

 

 

 
               20,050,822  
New York — 8.8%     

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

    

5.00%, 6/15/18 (b)

     2,586       2,699,417  

5.00%, 6/15/37

     14,981       15,639,016  
 

 

                
10    BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017   


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Municipal Bonds Transferred to
Tender Option Bond Trusts (e)
  

Par

(000)

    Value  
New York (continued)     

City of New York New York Municipal Water Finance Authority, Refunding RB, Water & Sewer System, 2nd General Resolution, Fiscal 2013, Series CC, 5.00%, 6/15/47

   $ 15,521     $ 17,201,363  

City of New York New York Water & Sewer System, Refunding RB, 2nd General Resolution, Fiscal 2014, Series DD, 5.00%, 6/15/35

     4,740       5,426,162  

Metropolitan Transportation Authority, RB, Sub-Series D-1, 5.25%, 11/15/44

     9,850       11,336,759  

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

     4,280       4,856,474  

New York State Urban Development Corp., RB, Personal Income Tax, General Purpose, Series A-1, 5.00%, 3/15/43

     14,280       15,833,093  

Port Authority of New York & New Jersey, Refunding RB, Consolidated, 198th Series, 5.25%, 11/15/56

     6,402       7,399,312  

Triborough Bridge & Tunnel Authority, RB, General, Series A-2, 5.25%, 11/15/34 (f)

     4,500       4,789,395  
    

 

 

 
               85,180,991  
Ohio — 0.7%     

County of Montgomery Ohio, RB, Catholic Health, Series C-1 (AGM), 5.00%, 4/28/18 (b)

     4,990       5,192,744  

State of Ohio, RB, Cleveland Clinic Health Obligated Group, Series B, 5.50%, 1/01/34

     1,520       1,623,041  
    

 

 

 
               6,815,785  
Pennsylvania — 0.3%     

County of Westmoreland Pennsylvania Municipal Authority, Refunding RB (BAM), 5.00%, 8/15/42

     2,560       2,851,891  
Texas — 4.8%     

County of Tarrant Texas Cultural Education Facilities Finance Corp., RB, Baylor Health Care System Project, Series A, 5.00%, 11/15/38

     1,799       1,979,356  
Municipal Bonds Transferred to
Tender Option Bond Trusts (e)
  

Par

(000)

    Value  
Texas (continued)     

County of Tarrant Texas Cultural Education Facilities Finance Corp., Refunding RB, Texas Health Resources System, Series A, 5.00%, 2/15/41

   $ 9,840     $ 10,994,035  

Dallas Fort Worth International Airport, ARB, Series H, AMT, 5.00%, 11/01/37 (f)

     8,868       9,540,767  

Friendswood ISD Texas, GO, Schoolhouse (PSF-GTD), 5.00%, 2/15/18 (b)

     12,955       13,379,265  

Texas State University Systems, Refunding RB, 5.25%, 3/15/18 (b)

     10,000       10,378,600  
    

 

 

 
               46,272,023  
Virginia — 0.4%     

University of Virginia, Refunding RB, GO, 5.00%, 6/01/18 (b)

     3,944       4,120,400  
Washington — 2.8%     

Central Puget Sound Regional Transit Authority, RB, Series A (AGM), 5.00%, 11/01/17 (b)

     16,770       17,357,621  

Washington Health Care Facilities Authority, Refunding RB, Seattle Children’s Hospital, Series B, 5.00%, 10/01/38

     8,205       9,615,603  
    

 

 

 
               26,973,224  
Wisconsin — 2.8%     

State of Wisconsin, Refunding RB, Series A, 6.00%, 5/01/19 (b)

     14,780       16,229,179  

Wisconsin Health & Educational Facilities Authority, Refunding RB, Froedtert & Community Health, Inc., Obligated Group:

    

Series A, 5.00%, 4/01/42

     2,490       2,679,389  

Series C, 5.25%, 4/01/19 (b)(f)

     7,459       8,048,190  
    

 

 

 
               26,956,758  
Total Municipal Bonds Transferred to
Tender Option Bond Trusts
46.8%
             453,581,237  

Total Long-Term Investments

(Cost — $1,484,644,770) — 162.5%

             1,574,781,535  
 

 

                
   BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017    11


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

Short-Term Securities   

Shares

    Value  

BlackRock Liquidity Funds, MuniCash, Institutional Class, 0.70% (g)(h)

     9,069,456     $ 9,071,270  

Total Short-Term Securities

(Cost — $9,070,559) — 1.0%

 

 

    9,071,270  
               
Value
 

Total Investments

(Cost — $1,493,715,329*) — 163.5%

  $ 1,583,852,805  

Other Assets Less Liabilities 0.5%

    5,350,256  

Liability for TOB Trust Certificates, Including Interest

Expense and Fees Payable (27.3)%

    (264,383,381

VRDP Shares at Liquidation Value, Net of Deferred

Offering Cost (36.7)%

    (355,917,870
    

 

 

 

Net Assets Applicable to Common Shares 100.0%

  $ 968,901,810  
    

 

 

 

*  As of April 30, 2017, gross unrealized appreciation and depreciation based on cost for U.S. federal income tax purposes were as follows:

   

 

Tax cost

  $ 1,233,861,180  
 

 

 

 

Gross unrealized appreciation

  $ 94,681,894  
 

 

 

 

Gross unrealized depreciation

    (8,484,291

Net unrealized appreciation

  $ 86,197,603  
 
Notes to Schedule of Investments

 

(a)   Step-up bond that pays an initial coupon rate for the first period and then a higher coupon rate for the following periods. Rate as of period end.

 

(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)   When-issued security.

 

(d)   Zero-coupon bond.

 

(e)   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.

 

(f)   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 agreements, which expires between June 1, 2017 and December 1, 2029, is $33,967,868.

 

(g)   During the period ended April 30, 2017, 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:

 

Affiliate   

Shares Held
at July 31,

2016

     Net
Activity
    

Shares Held
at April 30,

2017

   

Value

at April 30,

2017

     Income     

Net

Realized
Gain1

     Change in
Unrealized
Appreciation
 
BlackRock Liquidity Funds, MuniCash, Institutional Class      5,108,362        3,961,094        9,069,456     $ 9,071,270      $ 38,681      $ 5,161      $ 711  

 

1    Includes net capital gain distributions.

 

(h)   Current yield as of period end.

 

                
12    BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017   


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

 

Portfolio Abbreviations

 

AGC    Assured Guarantee Corp.
AGM    Assured Guaranty Municipal Corp.
AMBAC    American Municipal Bond Assurance Corp.
AMT    Alternative Minimum Tax (subject to)
ARB    Airport Revenue Bonds
BAM    Build America Mutual Assurance Co.
BHAC    Berkshire Hathaway Assurance Corp.
CAB    Capital Appreciation Bonds
COP    Certificates of Participation
CR    Custodian Receipt
EDA    Economic Development Authority
ERB    Education Revenue Bonds
GAB    Grant Anticipation Bonds
GARB    General Airport Revenue Bonds
GO    General Obligation Bonds
HDA    Housing Development Authority
HFA    Housing Finance Agency
IDA    Industrial Development Authority
ISD    Independent School District
LRB    Lease Revenue Bonds
M/F    Multi-Family
NPFGC    National Public Finance Guarantee Corp.
PSF-GTD    Permanent School Fund Guaranteed
RB    Revenue Bonds
S/F    Single-Family

 

Derivative Financial Instruments Outstanding as of Period End

 

Futures Contracts

 

 
Contracts
Short
    Issue   Expiration   Notional
Value
    Unrealized
Depreciation
 
  (89   5-Year U.S. Treasury Note   June 2017   $ 10,538,156     $ (45,947
  (328   10-Year U.S. Treasury Note   June 2017   $ 41,235,750       (354,597
  (354   Long U.S. Treasury Bond   June 2017   $ 54,150,938       (701,498
  (50   Ultra U.S. Treasury Bond   June 2017   $ 8,146,875       (156,313
 

Total

    $ (1,258,355
 

 

 

 

 

                
   BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017    13


Schedule of Investments (continued)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

 

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 price quotations in active markets/exchanges for identical assets or liabilities that the 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 the 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.

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

 

     Level 1      Level 2      Level 3      Total  

Assets:

          
Investments:           

Long-Term Investments1

         $ 1,574,781,535             $ 1,574,781,535  

Short-Term Securities

  $ 9,071,270                      9,071,270  
 

 

 

 

Total Investments

  $ 9,071,270      $ 1,574,781,535             $ 1,583,852,805  
 

 

 

 
    
Derivative Financial Instruments2           

Liabilities:

          

Interest rate contracts

  $ (1,258,355                  $ (1,258,355

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

    

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

    

 

                
14    BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017   


Schedule of Investments (concluded)

  

BlackRock MuniYield Quality Fund III, Inc. (MYI)

 

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

         $ (263,794,022           $ (263,794,022

VRDP Shares at Liquidation Value

           (356,400,000             (356,400,000
 

 

 

 

Total

         $ (620,194,022           $ (620,194,022
 

 

 

 

During the period ended April 30, 2017, there were no transfers between levels.

 

                
   BLACKROCK MUNIYIELD QUALITY FUND III, INC.    APRIL 30, 2017    15


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 MuniYield Quality Fund III, Inc.

 

By:        /s/ John M. Perlowski                    
  John M. Perlowski
  Chief Executive Officer (principal executive officer) of
  BlackRock MuniYield Quality Fund III, Inc.

Date: June 22, 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:        /s/ John M. Perlowski                    
  John M. Perlowski
  Chief Executive Officer (principal executive officer) of
  BlackRock MuniYield Quality Fund III, Inc.

Date: June 22, 2017

 

By:        /s/ Neal J. Andrews                     
  Neal J. Andrews
  Chief Financial Officer (principal financial officer) of
  BlackRock MuniYield Quality Fund III, Inc.

Date: June 22, 2017