Form NPORT-P - Monthly Portfolio Investments Report on Form N-PORT (Public)

Schedule of Investments (unaudited)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Municipal Bonds

Alabama — 5.2%
Black Belt Energy Gas District, RB^(a)
4.00%, 10/01/52	$	4,950	$	4,769,645
Series A, 5.25%, 01/01/54		3,065		3,059,836
Series C-1, 5.25%, 02/01/53		9,335		9,346,043
Series F, 5.50%, 11/01/53		2,920		2,952,071
Energy Southeast A Cooperative District, RB, Series B-1, 5.75%, 04/01/54^(a)		10,625		10,987,657
Homewood Educational Building Authority, Refunding RB
Series A, 5.00%, 12/01/34		1,145		1,160,109
Series A, 5.00%, 12/01/47		1,010		960,170
Southeast Energy Authority A Cooperative District, RB^(a)
Series A-1, 5.50%, 01/01/53		2,665		2,690,030
Series B-1, 5.00%, 05/01/53		7,530		7,457,068


				43,382,629

Arizona — 8.3%
Arizona Health Facilities Authority, Refunding RB, Series A, 5.00%, 12/01/42		2,785		2,608,288
Arizona Industrial Development Authority, RB
4.38%, 07/01/39^(b)		875		687,054
5.00%, 07/01/54^(b)		615		476,861
7.10%, 01/01/55^(b)		250		250,092
Series A, (BAM), 5.00%, 06/01/49		2,500		2,412,606
Series A, 5.00%, 07/01/49^(b)		1,445		1,164,173
Series A, 5.00%, 07/15/49		1,000		829,170
Series A, 5.00%, 12/15/49^(b)		250		201,106
Series A, 5.00%, 07/01/54^(b)		1,110		871,356
Arizona Industrial Development Authority, Refunding RB
Series A, 5.13%, 07/01/37^(b)		500		459,013
Series A, 5.38%, 07/01/50^(b)		1,645		1,434,750
Series A, 5.50%, 07/01/52^(b)		600		506,992
Series G, 5.00%, 07/01/47^(b)		2,360		1,976,736
Series S, 5.00%, 07/01/37		750		750,751
City of Buckeye Arizona Excise Tax Revenue, RB, (NGFGC), 5.00%, 07/01/43		4,000		3,977,676
City of Lake Havasu City Arizona Wastewater System Revenue, RB, Series B, (AGM), 5.00%, 07/01/40		3,500		3,507,742
City of Phoenix Civic Improvement Corp., ARB
Series B, AMT, Junior Lien, 5.00%, 07/01/44		4,515		4,369,115
AMT, Senior Lien, 5.00%, 07/01/43		4,000		3,890,077
Glendale Industrial Development Authority, RB, 5.00%, 05/15/56		825		614,419
Industrial Development Authority of the City of Phoenix Arizona, RB
Series A, 5.00%, 07/01/44		2,000		1,845,494
Series A, 6.75%, 07/01/44^(b)		440		441,560
Series A, 5.00%, 07/01/46^(b)		1,570		1,334,277
Industrial Development Authority of the City of Phoenix Arizona, Refunding RB
5.00%, 07/01/45^(b)		500		428,534
5.00%, 07/01/46		500		425,968
Industrial Development Authority of the County of Pima, RB, 5.00%, 07/01/49^(b)		1,150		922,061
Industrial Development Authority of the County of Pima, Refunding RB^(b) 5.00%, 06/15/49		1,985		1,612,802


Security	Par (000)		Value

Arizona (continued)
Industrial Development Authority of the County of Pima, Refunding RB^(b)(continued) 5.00%, 06/15/52	$	530	$	423,921
Maricopa County Industrial Development Authority, RB
5.00%, 07/01/47		1,000		898,547
4.00%, 07/01/50		1,500		1,195,237
Series A, 4.00%, 01/01/41		5,075		4,493,836
Maricopa County Industrial Development Authority, Refunding RB
5.00%, 07/01/47^(b)		1,000		821,725
5.00%, 07/01/54^(b)		440		357,390
Series A, 5.00%, 09/01/37		1,525		1,533,269
Series A, 4.13%, 09/01/38		550		483,555
Series A, 4.13%, 09/01/42		750		628,643
Series A, 5.00%, 09/01/42		1,000		982,748
Maricopa County Unified School District No. 11- Peoria, GO, (AGM), 5.00%, 07/01/35		1,250		1,265,613
McAllister Academic Village LLC, Refunding RB, 5.00%, 07/01/39		500		504,973
Phoenix-Mesa Gateway Airport Authority, ARB, AMT, 5.00%, 07/01/38		3,600		3,587,211
Pinal County Industrial Development Authority, RB, AMT, 6.25%, 06/01/26		155		157,537
Salt River Project Agricultural Improvement & Power District, Refunding RB, Series A, 5.00%, 12/01/41		2,000		2,028,866
Salt Verde Financial Corp., RB
5.50%, 12/01/29		2,000		2,027,006
5.00%, 12/01/32		155		152,939
5.00%, 12/01/37		6,610		6,405,623
State of Arizona Distribution Revenue, RB, Series B, (BHAC-CR FGIC), 5.50%, 07/01/41^(c)		100		110,426
Student & Academic Services LLC, RB, (BAM), 5.00%, 06/01/39		1,400		1,401,914
University of Arizona, Refunding RB, 5.00%, 06/01/39		2,050		2,079,578


				69,539,230

Arkansas — 0.7%
Arkansas Development Finance Authority, RB
AMT, 5.70%, 05/01/53		1,550		1,407,285
AMT, 4.75%, 09/01/49^(b)		2,450		2,248,894
Series A, AMT, 4.50%, 09/01/49^(b)		2,135		1,876,994


				5,533,173

California — 13.1%
Alvord Unified School District, Refunding GO, Series B, Election 2007, (AGM), 0.00%, 08/01/41^(d)		1,175		463,661
Anaheim Public Financing Authority, RB, Series A, (AGM), 6.00%, 09/01/24		1,265		1,285,579
Bay Area Toll Authority, Refunding RB, 4.00%, 04/01/47		1,625		1,424,767
California Community Choice Financing Authority, RB, 5.50%, 10/01/54^(a)		2,385		2,456,848
California Community Housing Agency, RB, M/F Housing, 3.00%, 08/01/56^(b)		440		264,599
California Enterprise Development Authority, RB, 8.00%, 11/15/62^(b)		1,355		1,196,677
California State Public Works Board, RB, Series I, 5.50%, 11/01/31		1,000		1,001,987
Carlsbad Unified School District, Refunding GO, Series B, 6.00%, 05/01/34^(c)		5,000		5,050,002


1

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

California (continued)
City of Los Angeles Department of Airports, Refunding ARB, Series D, AMT, Subordinate, 4.00%, 05/15/51	$	8,175	$	6,566,572
CSCDA Community Improvement Authority, RB, M/F Housing^(b)
5.00%, 09/01/37		345		315,898
4.00%, 10/01/56		590		444,260
4.00%, 12/01/56		575		362,878
Series A, 4.00%, 06/01/58		3,015		2,056,796
Senior Lien, 3.13%, 06/01/57		2,065		1,181,470
Series A, Senior Lien, 4.00%, 12/01/58		4,610		3,117,671
Grossmont Union High School District, GO, Election 2004, 0.00%, 08/01/31^(d)		5,000		3,699,107
Grossmont-Cuyamaca Community College District, GO, Series C, Election 2002, (AGC), 0.00%, 08/01/30^(d)		10,030		7,543,766
Hartnell Community College District, GO, Series D, 7.00%, 08/01/34^(c)		4,125		4,629,852
Kern Community College District, GO, Series C, 5.50%, 11/01/23^(e)		1,620		1,620,000
Mount San Antonio Community College District, Refunding GO, CAB, CAB, Series A, Convertible, Election 2013, 6.25%, 08/01/28^(c)		4,445		3,843,966
Norman Y Mineta San Jose International Airport SJC, Refunding RB, Series A, AMT, 5.00%, 03/01/41		2,050		1,987,564
Poway Unified School District, Refunding GO, Series B, 0.00%, 08/01/36^(d)		8,750		4,921,567
Regents of the University of California Medical Center Pooled Revenue, RB, Series P, 4.00%, 05/15/53		5,015		4,259,407
Rio Hondo Community College District, GO^(d)
Series C, Election 2004, 0.00%, 08/01/37		4,005		2,152,861
Series C, Election 2004, 0.00%, 08/01/38		5,000		2,516,700
San Bernardino Community College District, GO, Series B, 6.38%, 08/01/34^(c)		10,000		10,199,901
San Diego Unified School District, GO, Series C, Election 2008, 0.00%, 07/01/38^(d)		3,800		1,891,570
San Diego Unified School District, GO, CAB, Series G, Election 2008, 0.00%, 01/01/24^(d)(e)		7,295		3,775,186
San Diego Unified School District, Refunding GO, CAB^(d)
Series R-1, 0.00%, 07/01/30		5,000		3,778,174
Series R-1, 0.00%, 07/01/31		3,005		2,178,409
San Francisco City & County Airport Comm-San Francisco International Airport, Refunding ARB
Series A, AMT, 5.50%, 05/01/28		1,065		1,065,970
Series A, AMT, 5.25%, 05/01/33		830		830,441
San Mateo County Community College District, GO,
Series C, (NPFGC), 0.00%, 09/01/30^(d)		12,740		9,893,379
State of California, GO, 5.50%, 04/01/28		5		5,007
Walnut Valley Unified School District, GO, Series B, Election 2007, 0.00%, 08/01/36^(d)		5,500		3,106,640
Washington Township Health Care District, GO, Series B, Election 2004, 5.50%, 08/01/40		625		625,217
Yosemite Community College District, GO, Series D, Election 2004, 0.00%, 08/01/36^(d)		15,000		8,302,703


				110,017,052


Security	Par (000)		Value

Colorado — 1.6%
Centerra Metropolitan District No. 1, TA, 5.00%, 12/01/47^(b)	$	345	$	281,324
City & County of Denver Colorado Airport System Revenue, ARB
Series A, AMT, 5.50%, 11/15/28		1,000		1,000,703
Series A, AMT, 5.50%, 11/15/30		330		330,234
Series A, AMT, 5.50%, 11/15/31		400		400,283
City & County of Denver Colorado Pledged Excise Tax Revenue, RB, CAB, Series A-2, 0.00%, 08/01/37^(d)		1,760		835,006
City & County of Denver Colorado, COP, Series A, 4.00%, 06/01/48		1,805		1,507,989
Colorado Health Facilities Authority, RB
5.50%, 11/01/47		2,400		2,402,976
Series A, 4.00%, 11/15/46		2,555		2,103,379
Colorado Health Facilities Authority, Refunding RB, Series A, 4.00%, 08/01/44		1,060		871,084
State of Colorado, COP, Series S, 4.00%, 03/15/40		4,400		3,913,351


				13,646,329

Connecticut — 0.2%
Connecticut Housing Finance Authority, Refunding RB, S/F Housing, Series A-1, 3.80%, 11/15/39		260		219,338
Connecticut State Health & Educational Facilities Authority, RB
5.25%, 07/15/48		525		511,169
4.25%, 07/15/53		705		565,340


				1,295,847

Delaware — 0.2%
Delaware State Health Facilities Authority, RB, 5.00%, 06/01/48		1,605		1,448,892


District of Columbia — 0.3%
District of Columbia, RB, Series B-1, (NPFGC-IBC FGIC), 5.00%, 02/01/31		435		435,293
Metropolitan Washington Airports Authority Dulles Toll Road Revenue, Refunding RB, Series B, Subordinate, 4.00%, 10/01/49		2,875		2,252,912


				2,688,205

Florida — 9.9%
Brevard County Health Facilities Authority, Refunding RB, 5.00%, 04/01/39		3,775		3,785,601
Capital Trust Agency, Inc., RB^(b)
5.00%, 01/01/55		825		574,319
Series A, 5.00%, 06/01/55		1,285		947,334
Series A, 5.50%, 06/01/57		460		365,312
City of Fort Lauderdale Florida Water & Sewer Revenue, RB
5.50%, 09/01/48		4,615		4,899,988
Series A, 5.50%, 09/01/48		5,275		5,600,744
City of South Miami Health Facilities Authority, Inc., Refunding RB, 5.00%, 08/15/42		4,215		4,105,562
City of Tampa Florida Water & Wastewater System Revenue, RB, Series A, 5.25%, 10/01/57		5,055		5,197,695
City of Tampa Florida, RB, Series A, 4.00%, 11/15/46		1,920		1,585,933
City of Tampa Florida, RB, CAB^(d)
Series A, 0.00%, 09/01/49		1,725		334,873
Series A, 0.00%, 09/01/53		975		144,523


S C H E D U L E O F I N V E S T M E N T S		2

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Florida (continued)
County of Broward Florida Airport System Revenue, ARB
Series A, AMT, 4.00%, 10/01/49	$	2,650	$	2,099,402
Series A, AMT, 5.00%, 10/01/49		300		285,503
County of Broward Florida Port Facilities Revenue, ARB, AMT, 5.25%, 09/01/47		3,650		3,618,271
County of Miami-Dade Florida Aviation Revenue, Refunding ARB, Series A, AMT, 5.00%, 10/01/44		1,745		1,679,576
County of Miami-Dade Florida Aviation Revenue, Refunding RB
5.00%, 10/01/41		3,800		3,812,086
AMT, 5.00%, 10/01/34		450		450,206
County of Miami-Dade Seaport Department, Refunding RB
Series A, AMT, 5.00%, 10/01/41		1,315		1,266,023
Series A, AMT, 5.25%, 10/01/52		1,040		992,822
Series A-1, AMT, (AGM), 4.00%, 10/01/45		2,885		2,309,056
County of Osceola Florida Transportation Revenue, Refunding RB, CAB^(d)
Series A-2, 0.00%, 10/01/46		1,840		438,908
Series A-2, 0.00%, 10/01/47		2,970		658,478
County of Pasco Florida, RB, (AGM), 5.75%, 09/01/54		660		692,585
Florida Development Finance Corp., RB^(b)
6.50%, 06/30/57		1,230		1,060,204
AMT, 5.00%, 05/01/29		1,275		1,160,654
Florida Development Finance Corp., Refunding RB, 5.00%, 09/15/40^(b)		710		579,597
Greater Orlando Aviation Authority, ARB
Series A, AMT, 5.00%, 10/01/40		3,890		3,857,279
Series A, AMT, 4.00%, 10/01/52		6,600		5,080,137
Sub-Series A, AMT, 5.00%, 10/01/47		7,865		7,389,905
Hillsborough County Aviation Authority, ARB, AMT, 5.00%, 10/01/48		5,765		5,516,459
Lakewood Ranch Stewardship District, SAB
5.25%, 05/01/37		240		225,079
3.85%, 05/01/39		420		330,217
5.38%, 05/01/47		260		230,888
4.00%, 05/01/49		665		468,838
6.30%, 05/01/54		765		744,628
Lakewood Ranch Stewardship District, SAB, S/F Housing
4.00%, 05/01/40		365		286,526
4.00%, 05/01/50		605		420,897
Lee County Housing Finance Authority, RB, S/F Housing, Series A-2, AMT, (FHLMC, FNMA, GNMA), 6.00%, 09/01/40		20		20,000
Orange County Housing Finance Authority, RB, S/F Housing
5.00%, 10/01/53		6,605		6,206,406
Series A, (FHLMC, FNMA, GNMA), 3.75%, 09/01/47		335		277,719
Palm Beach County Health Facilities Authority, RB, Series B, 4.00%, 11/15/41		160		124,645
Seminole Improvement District, RB
5.00%, 10/01/32		255		240,128
5.30%, 10/01/37		290		265,932
Storey Creek Community Development District, SAB 4.00%, 12/15/39		415		329,789


Security	Par (000)		Value

Florida (continued)
Storey Creek Community Development District, SAB (continued)
4.13%, 12/15/49	$	350	$	250,653
Village Community Development District No. 14, SAB, 5.50%, 05/01/53		1,935		1,847,265
Village Community Development District No. 15, SAB, 5.25%, 05/01/54^(b)		790		697,245


				83,455,890

Georgia — 4.5%
Development Authority for Fulton County, RB, 4.00%, 07/01/49		1,855		1,504,247
East Point Business & Industrial Development Authority, RB, Series A, 5.25%, 06/15/62^(b)		715		563,783
Gainesville & Hall County Hospital Authority, RB, Series A, 4.00%, 02/15/51		2,875		2,322,688
Main Street Natural Gas, Inc., RB
Series A, 5.00%, 05/15/38		910		867,069
Series A, 5.00%, 05/15/43		1,620		1,543,161
Series A, 5.00%, 05/15/49		1,230		1,145,020
Series A, 5.00%, 06/01/53^(a)		7,480		7,354,133
Main Street Natural Gas, Inc., Refunding RB, Series E-1, 5.00%, 12/01/53^(a)		10,155		10,077,034
Municipal Electric Authority of Georgia, RB
(AGM), 5.00%, 07/01/52		1,770		1,705,215
Class A, 5.50%, 07/01/63		1,275		1,255,470
Series A, 5.00%, 01/01/59		1,870		1,730,706
Municipal Electric Authority of Georgia, Refunding RB, Series EE, (AMBAC), 7.00%, 01/01/25		7,475		7,661,182
Private Colleges & Universities Authority, RB, 5.00%, 04/01/24^(e)		330		331,281


				38,060,989

Hawaii — 0.5%
State of Hawaii Airports System Revenue, ARB, Series A, AMT, 5.00%, 07/01/43		3,310		3,193,982
State of Hawaii Airports System Revenue, COP
AMT, 5.25%, 08/01/25		485		485,064
AMT, 5.25%, 08/01/26		525		525,127


				4,204,173

Illinois — 11.7%
Chicago Board of Education, GO
Series A, 5.00%, 12/01/34		3,665		3,570,367
Series A, 5.00%, 12/01/40		4,090		3,723,454
Series C, 5.25%, 12/01/35		970		945,675
Series D, 5.00%, 12/01/46		1,230		1,086,819
Series H, 5.00%, 12/01/36		295		278,197
Chicago Board of Education, Refunding GO
Series A, 5.00%, 12/01/30		355		352,093
Series G, 5.00%, 12/01/34		290		282,004
Chicago Midway International Airport, Refunding ARB
Series B, 5.00%, 01/01/46		7,060		7,067,844
Series A, AMT, 2nd Lien, 5.00%, 01/01/41		665		626,819
Chicago O’Hare International Airport, ARB, Series D, Senior Lien, 5.25%, 01/01/42		6,885		6,839,707
Chicago O’Hare International Airport, Refunding ARB
Series A, AMT, Senior Lien, 5.00%, 01/01/48		2,750		2,597,950
Series A, AMT, Senior Lien, 4.38%, 01/01/53		2,780		2,303,057


3

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Illinois (continued)
Chicago O’Hare International Airport, Refunding RB, Series B, AMT, 5.00%, 01/01/31	$	2,500	$	2,450,427
Chicago Transit Authority Sales Tax Receipts Fund, RB, 5.25%, 12/01/49		1,610		1,575,044
Chicago Transit Authority Sales Tax Receipts Fund, Refunding RB, Series A, 2nd Lien, 5.00%, 12/01/57		2,575		2,414,273
City of Chicago Illinois Wastewater Transmission Revenue, RB, Series A, 2nd Lien, (AGM), 5.25%, 01/01/58		1,185		1,185,413
City of Chicago Illinois Waterworks Revenue, RB, Series A, 2nd Lien, (AGM), 5.25%, 11/01/53		1,920		1,935,194
Cook County Community College District No. 508, GO
5.50%, 12/01/38		1,000		975,791
5.25%, 12/01/43		1,500		1,357,208
Illinois Finance Authority, RB, 5.00%, 10/01/48		1,760		1,729,115
Illinois Finance Authority, Refunding RB
Series A, 5.00%, 11/15/45		2,945		2,732,644
Series C, 4.13%, 08/15/37		2,430		2,083,170
Series C, 4.00%, 02/15/41		870		753,996
Series C, 5.00%, 08/15/44		820		742,105
Illinois Housing Development Authority, RB, S/F Housing, Series A, (FHLMC, FNMA, GNMA), 4.13%, 10/01/38		320		294,190
Illinois State Toll Highway Authority, RB
Series A, 5.00%, 01/01/40		1,950		1,953,266
Series B, 5.00%, 01/01/40		3,755		3,768,307
Metropolitan Pier & Exposition Authority, RB
5.00%, 06/15/57		3,005		2,745,212
Series A, (NPFGC), 0.00%, 12/15/26^(d)		5,000		4,313,202
Series A, (NPFGC), 0.00%, 12/15/33^(d)		9,950		6,060,972
Metropolitan Pier & Exposition Authority, RB, CAB^(d)
(BAM-TCRS), 0.00%, 12/15/56		2,965		452,501
Series A, (NPFGC), 0.00%, 06/15/30		14,205		10,296,300
Series A, (NPFGC), 0.00%, 06/15/30^(f)		800		605,413
Metropolitan Pier & Exposition Authority, Refunding RB, Series B, (AGM), 0.00%, 06/15/44^(d)		8,075		2,621,545
Metropolitan Pier & Exposition Authority, Refunding RB, CAB, Series B, (BAM-TCRS), 0.00%, 12/15/54^(d)		4,140		708,481
Regional Transportation Authority, RB, Series B, (NPFGC), 5.75%, 06/01/33		3,200		3,526,125
State of Illinois, GO
5.25%, 02/01/30		2,010		2,002,354
5.25%, 02/01/32		2,330		2,334,772
5.25%, 02/01/34		1,610		1,613,306
5.50%, 05/01/39		2,785		2,849,536
Series B, 5.25%, 05/01/41		2,345		2,332,078
Series D, 5.00%, 11/01/27		440		451,421


				98,537,347

Indiana — 0.3%
City of Valparaiso Indiana, RB, AMT, 6.75%, 01/01/34		1,350		1,353,152
Indianapolis Local Public Improvement Bond Bank, RB, 5.25%, 02/01/48		895		918,149


				2,271,301


Security	Par (000)		Value

Iowa — 0.0%
Iowa Student Loan Liquidity Corp., Refunding RB, Series B, AMT, 3.00%, 12/01/39	$	210	$	184,845


Kansas — 0.1%
City of Lenexa Kansas, Refunding RB, Series A, 5.00%, 05/15/43		550		464,890


Kentucky — 0.6%
City of Henderson Kentucky, RB, Series A, AMT, 4.70%, 01/01/52^(b)		555		485,954
County of Boyle Kentucky, Refunding RB
Series A, 4.25%, 06/01/46		740		630,448
Series A, 5.25%, 06/01/49		1,305		1,308,979
Fayette County School District Finance Corp., RB
(NGFGC), 5.00%, 06/01/44		1,455		1,473,327
(BAM-TCRS), 5.00%, 06/01/46		1,285		1,290,927


				5,189,635

Louisiana — 2.6%
Jefferson Sales Tax District, RB
Series B, (AGM), 5.00%, 12/01/34		330		341,838
Series B, (AGM), 5.00%, 12/01/35		440		453,547
Series B, (AGM), 5.00%, 12/01/36		395		404,731
Series B, (AGM), 5.00%, 12/01/37		495		504,796
Lake Charles Harbor & Terminal District, ARB, Series B, AMT, (AGM), 5.50%, 01/01/29		1,500		1,502,349
Louisiana Public Facilities Authority, Refunding RB
5.00%, 05/15/42		4,600		4,408,338
5.00%, 05/15/47		1,895		1,774,241
Louisiana Stadium & Exposition District, Refunding RB, Series A, 5.00%, 07/01/48		4,020		3,962,011
New Orleans Aviation Board, ARB
Series B, AMT, 5.00%, 01/01/45		4,620		4,325,705
Series B, AMT, 5.00%, 01/01/48		4,780		4,339,684


				22,017,240

Maryland — 3.0%
Anne Arundel County Consolidated Special Taxing District, Refunding ST, 5.00%, 07/01/32		495		495,440
Anne Arundel County Consolidated Special Taxing District, ST, 5.25%, 07/01/44		250		234,769
City of Baltimore Maryland, RB^(e)
Series A, 5.00%, 01/01/24		1,000		1,001,024
Series C, 5.00%, 01/01/24		1,000		1,001,024
City of Baltimore Maryland, Refunding RB
5.00%, 09/01/46		750		611,388
Series A, 4.50%, 09/01/33		185		167,703
Series A, 5.00%, 09/01/38		250		229,829
City of Baltimore Maryland, Refunding TA^(b)
Series A, Senior Lien, 3.50%, 06/01/39		650		497,201
Series A, Senior Lien, 3.63%, 06/01/46		1,095		768,958
City of Baltimore Maryland, TA^(b)
Series B, 3.70%, 06/01/39		200		157,048
Series B, 3.88%, 06/01/46		300		219,832
County of Howard Maryland, TA, 6.10%, 02/15/44		250		239,079
County of Prince George’s Maryland, TA, 5.25%, 07/01/48^(b)		300		254,855
Howard County Housing Commission, RB, M/F Housing 5.00%, 12/01/42		500		469,857


S C H E D U L E O F I N V E S T M E N T S		4

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Maryland (continued)
Howard County Housing Commission, RB, M/F Housing (continued)
4.00%, 06/01/46	$	500	$	395,926
Series A, 5.00%, 06/01/44		550		509,977
Maryland Community Development Administration, RB, M/F Housing, Series D, 3.70%, 07/01/35		500		439,713
Maryland Economic Development Corp., RB
5.00%, 07/01/56		390		346,342
Class B, AMT, 5.25%, 06/30/55		2,920		2,677,968
Maryland Economic Development Corp., Refunding RB
5.00%, 07/01/37		500		457,097
(AGM), 5.00%, 06/01/43		1,350		1,358,441
Series A, 5.00%, 06/01/35		100		100,322
Maryland Health & Higher Educational Facilities Authority, RB
4.00%, 07/01/48		300		249,633
Series C, 5.00%, 05/15/45		2,875		2,795,845
Maryland Health & Higher Educational Facilities Authority, Refunding RB
4.00%, 07/01/24^(e)		100		100,058
5.00%, 07/01/24^(e)		700		704,945
5.00%, 06/01/29		500		500,051
5.00%, 07/01/34		510		518,453
5.00%, 07/01/35		200		201,330
5.00%, 07/01/40		1,000		962,920
4.00%, 07/01/41		500		438,044
5.00%, 08/15/42		1,000		981,336
4.13%, 07/01/47		500		415,697
Maryland State Transportation Authority Passenger Facility Charge Revenue, ARB, AMT, 4.00%, 06/01/29		1,925		1,838,539
Montgomery County Housing Opportunities Commission, Refunding RB, S/F Housing, Series C, AMT, 3.30%, 07/01/39		2,830		2,283,906
Washington Suburban Sanitary Commission, RB, Second Series, (GTD), 4.00%, 06/01/41		875		781,749


				25,406,299

Massachusetts — 3.2%
Massachusetts Bay Transportation Authority Sales Tax Revenue, Refunding RB, Series A, 5.25%, 07/01/29		730		795,173
Massachusetts Development Finance Agency, RB
5.00%, 10/01/46		500		437,436
5.00%, 07/01/47		580		514,626
5.00%, 10/01/48		200		167,735
Series A, 5.25%, 01/01/42		500		480,047
Series A, (AMBAC), 5.75%, 01/01/42		650		727,540
Series A, 5.00%, 01/01/47		5,945		5,373,813
Massachusetts Development Finance Agency,
Refunding RB
4.00%, 07/01/39		2,545		2,100,135
5.00%, 04/15/40		1,000		900,468
4.13%, 10/01/42^(b)		550		411,739
4.00%, 12/01/42		485		373,731
4.00%, 07/01/44		250		221,480
5.00%, 07/01/47		7,685		7,516,702
Series A, 4.00%, 06/01/29^(e)		420		429,683
Series E, 4.00%, 07/01/38		500		419,922


Security	Par (000)		Value

Massachusetts (continued)
Massachusetts Development Finance Agency, Refunding RB (continued) Series P, 5.45%, 05/15/59	$	1,500	$	1,553,248
Massachusetts Educational Financing Authority, RB
AMT, 5.00%, 01/01/27		1,000		1,001,966
Series B, AMT, 2.63%, 07/01/36		30		29,119
Massachusetts Educational Financing Authority, Refunding RB, AMT, 3.50%, 07/01/33		80		70,544
Massachusetts Health & Educational Facilities Authority, Refunding RB, Series M, 5.50%, 02/15/27		1,000		1,053,496
Massachusetts Housing Finance Agency, RB, M/F Housing, Series A, 3.80%, 12/01/43		500		395,542
Massachusetts Housing Finance Agency, Refunding RB
Series A, AMT, 4.45%, 12/01/42		950		806,663
Series A, AMT, 4.50%, 12/01/47		255		219,658
Massachusetts Housing Finance Agency, Refunding RB, S/F Housing, Series 214, (FHLMC, FNMA, GNMA), 2.95%, 12/01/44		465		321,740
Massachusetts State College Building Authority, Refunding RB, Series B, (AGC SAP), 5.50%, 05/01/39		825		920,278


				27,242,484

Michigan — 5.8%
City of Lansing Michigan, Refunding GO, Series B, (AGM), 4.13%, 06/01/48		5,035		4,191,952
Eastern Michigan University, RB
Series A, (AGM), 4.00%, 03/01/44		1,395		1,186,453
Series A, 4.00%, 03/01/47^(e)		60		60,782
Lansing Board of Water & Light, RB, Series A, 5.00%, 07/01/51		3,740		3,692,821
Michigan Finance Authority, RB
4.00%, 02/15/50		5,000		4,041,083
4.00%, 02/15/44		1,695		1,410,486
Series A, 4.00%, 11/15/50		5,680		4,493,393
Series S, 5.00%, 11/01/44		4,670		4,515,453
Michigan Finance Authority, Refunding RB
4.00%, 11/15/46		3,420		2,796,526
Series A, 4.00%, 12/01/40		7,000		6,053,046
Michigan State Building Authority, Refunding RB, Series II, 4.00%, 10/15/47		1,965		1,667,088
Michigan State Housing Development Authority, RB, M/F Housing
Series A, 4.05%, 10/01/48		1,855		1,488,153
Series A, AMT, 2.55%, 10/01/51		2,360		1,341,820
Michigan State Housing Development Authority, RB, S/F Housing, Series B, 2.95%, 12/01/39		675		507,974
Michigan Strategic Fund, RB, AMT, 5.00%, 12/31/43		6,310		5,866,945
State of Michigan Trunk Line Revenue, RB, 4.00%, 11/15/46		2,485		2,126,618
State of Michigan Trunk Line Revenue, RB, BAB, 5.00%, 11/15/46		2,665		2,691,643

Western Michigan University, Refunding RB, (AGM), 5.00%, 11/15/23^(e)		900		900,162


				49,032,398

Minnesota — 0.2%
Minnesota Higher Education Facilities Authority, RB, Series A, 5.00%, 10/01/47		1,615		1,591,501


5

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Missouri — 0.4%
Health & Educational Facilities Authority of the State of Missouri, RB, 4.00%, 11/15/42	$	1,015	$	854,522
Kansas City Industrial Development Authority, ARB
AMT, 5.00%, 03/01/46		530		500,462
Series B, AMT, 5.00%, 03/01/39		2,505		2,389,210


				3,744,194

Nebraska — 1.8%
Central Plains Energy Project, Refunding RB, Series A, 5.00%, 09/01/37		4,260		4,061,084
Omaha Public Power District, RB, Series A, 5.25%, 02/01/48^(g)		7,985		8,271,857
Omaha Public Power District, Refunding RB, Series A, 4.00%, 02/01/42		2,860		2,576,737


				14,909,678

Nevada — 1.2%
County of Clark Nevada, RB, Subordinate, (AGM), 4.00%, 07/01/40		7,285		6,515,555
Las Vegas Convention & Visitors Authority, RB, Series B, 4.00%, 07/01/49		1,000		826,649
Las Vegas Valley Water District, GO, Series A, 4.00%, 06/01/51		2,910		2,416,465


				9,758,669

New Hampshire — 0.4%
New Hampshire Business Finance Authority, Refunding RB^(a)(b)
Series A, 3.63%, 07/01/43		160		106,402
Series B, AMT, 3.75%, 07/01/45		1,075		717,598
New Hampshire Housing Finance Authority, RB, M/F Housing, Series 1, 4.00%, 07/01/52		3,200		2,554,754


				3,378,754

New Jersey — 7.2%
Camden County Improvement Authority, RB, 6.00%, 06/15/62		655		669,831
Hudson County Improvement Authority, RB, 5.00%, 05/01/46		1,930		1,935,175
New Jersey Economic Development Authority, RB
Series WW, 5.00%, 06/15/25^(e)		485		493,930
Series WW, 5.25%, 06/15/25^(e)		1,125		1,150,175
AMT, (AGM), 5.00%, 01/01/31		900		890,021
AMT, 5.13%, 01/01/34		1,620		1,585,800
AMT, 5.38%, 01/01/43		2,115		2,047,768
New Jersey Economic Development Authority, Refunding RB
Series BBB, 5.50%, 12/15/26^(e)		5,360		5,646,208
Sub-Series A, 4.00%, 07/01/32		1,510		1,415,837
New Jersey Higher Education Student Assistance Authority, RB, Series C, AMT, Subordinate, 4.25%, 12/01/50		2,135		1,670,245
New Jersey Higher Education Student Assistance Authority, Refunding RB, Series B, AMT, 4.00%, 12/01/41		3,180		2,887,199
New Jersey Transportation Trust Fund Authority, RB
Series A, (NPFGC), 5.75%, 06/15/25		2,000		2,050,587
Series A, 0.00%, 12/15/29^(d)		7,530		5,720,913
Series AA, 5.00%, 06/15/38		4,325		4,292,853
Series AA, 4.13%, 06/15/39		1,210		1,107,483
Series AA, 4.00%, 06/15/40		1,060		943,004
Series AA, 5.00%, 06/15/45		2,710		2,684,493
Series AA, 4.00%, 06/15/50		2,000		1,644,087


Security	Par (000)		Value

New Jersey (continued)
New Jersey Transportation Trust Fund Authority, RB (continued)
Series BB, 4.00%, 06/15/50	$	4,900	$	4,003,838
Series D, 5.00%, 06/15/32		1,610		1,626,371
New Jersey Transportation Trust Fund Authority, Refunding RB
Series A, 5.00%, 12/15/36		180		182,439
Series A, 5.00%, 06/15/37		1,940		1,991,378
Series A, 5.25%, 06/15/42		775		792,694
New Jersey Turnpike Authority, RB, Series A, 4.00%, 01/01/48		2,650		2,256,862
Tobacco Settlement Financing Corp., Refunding RB
Series A, 5.00%, 06/01/35		3,220		3,284,978
Sub-Series B, 5.00%, 06/01/46		8,360		7,763,228


				60,737,397

New Mexico — 0.0%
City of Santa Fe New Mexico, RB, Series A, 5.00%, 05/15/44		415		325,729


New York — 12.2%
City of New York, GO
Series A-1, 5.00%, 08/01/47		930		925,656
Series B, 5.25%, 10/01/41		1,955		2,026,293
Metropolitan Transportation Authority, Refunding RB
Series B, 5.00%, 11/15/29		540		550,306
Series C-1, 5.00%, 11/15/56		6,550		6,130,927
New York City Municipal Water Finance Authority, RB, Series AA-1, 5.25%, 06/15/52		5,600		5,746,690
New York City Transitional Finance Authority Building Aid Revenue, RB, Series S-1, Subordinate, (SAW), 4.00%, 07/15/42		2,910		2,546,937
New York City Transitional Finance Authority Future Tax Secured Revenue, RB, Series F-1, Subordinate, 5.00%, 02/01/43		7,695		7,843,339
New York Counties Tobacco Trust IV, Refunding RB, Series A, 6.25%, 06/01/41^(b)		1,100		1,099,966
New York Liberty Development Corp., Refunding RB
Class 1, 5.00%, 11/15/44^(b)		2,630		2,346,905
Series A, 2.88%, 11/15/46		3,140		2,036,248
Series A, (BAM-TCRS), 3.00%, 11/15/51		7,485		4,817,921
Series A, 3.00%, 11/15/51		3,725		2,414,796
New York Power Authority, Refunding RB
Series A, 4.00%, 11/15/55		2,185		1,774,976
Series A, 4.00%, 11/15/60		1,570		1,263,891
New York State Housing Finance Agency, RB, M/F Housing, Series B, (SONYMA), 3.88%, 11/01/48		400		307,276
New York State Thruway Authority, RB, Series N, 4.00%, 01/01/46		2,630		2,212,689
New York State Thruway Authority, Refunding RB, Series B, Subordinate, 4.00%, 01/01/50		510		410,545
New York State Urban Development Corp., RB, Series A, 5.00%, 03/15/46		6,000		6,059,388
New York State Urban Development Corp., Refunding RB, 4.00%, 03/15/46		5,960		5,142,205
New York Transportation Development Corp., ARB
AMT, 5.00%, 12/01/36		1,650		1,633,180
Series A, AMT, 5.25%, 01/01/50		6,045		5,681,878
New York Transportation Development Corp., RB
5.63%, 04/01/40^(g)		1,700		1,682,187
AMT, 5.00%, 10/01/35		3,460		3,301,889


S C H E D U L E O F I N V E S T M E N T S		6

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

New York (continued)
Port Authority of New York & New Jersey, ARB
AMT, 5.00%, 11/01/49	$	5,600	$	5,335,064
Series 221, AMT, 4.00%, 07/15/55		5,155		3,965,815
Port Authority of New York & New Jersey, Refunding ARB
186th Series, AMT, 5.00%, 10/15/36		570		570,743
Series 197, AMT, 5.00%, 11/15/35		905		910,688
Triborough Bridge & Tunnel Authority Sales Tax Revenue, RB
Series A, 4.13%, 05/15/53		11,585		9,788,065
Series A, 4.50%, 05/15/63		3,500		3,063,931
Triborough Bridge & Tunnel Authority, Refunding RB
Series A, 5.00%, 05/15/47		6,120		6,132,778
Series C, 5.00%, 05/15/47		5,000		5,000,832


				102,724,004

North Carolina — 0.7%
University of North Carolina at Chapel Hill, RB, 5.00%, 02/01/49		6,510		6,287,175


Ohio — 3.0%
Buckeye Tobacco Settlement Financing Authority, Refunding RB, Series B-2, 5.00%, 06/01/55		18,110		14,808,575
County of Franklin Ohio, RB, 5.00%, 11/01/48		1,650		1,589,992
Northeast Ohio Regional Sewer District, Refunding RB, 4.00%, 11/15/24^(e)		2,170		2,169,756
Ohio Air Quality Development Authority, RB, AMT, 5.00%, 07/01/49^(b)		260		207,248
Ohio Housing Finance Agency, RB, S/F Housing, Series A, (FHLMC, FNMA, GNMA), 4.00%, 09/01/48		350		301,979
Ohio Turnpike & Infrastructure Commission, RB, CAB, Series A-2, Junior Lien, 0.00%, 02/15/37^(d)		10,040		5,267,368
State of Ohio, Refunding RB, Series A, 4.00%, 01/15/50		1,055		834,423


				25,179,341

Oklahoma — 0.4%
Oklahoma Development Finance Authority, RB, Series B, 5.50%, 08/15/52		560		482,345
Oklahoma Turnpike Authority, RB, Series A, 4.00%, 01/01/48		1,640		1,394,569
Oklahoma Water Resources Board, RB, 4.00%, 04/01/48		1,280		1,104,235
Tulsa County Industrial Authority, Refunding RB, 5.25%, 11/15/37		450		423,277


				3,404,426

Oregon — 1.2%
Clackamas Community College District, GO^(c)
Series A, 5.00%, 06/15/39		605		616,365
Series A, 5.00%, 06/15/40		440		447,508
Clackamas County School District No. 12 North Clackamas, GO, CAB, Series A, (GTD), 0.00%, 06/15/38^(d)		2,355		1,046,265
Port of Portland Oregon Airport Revenue, Refunding ARB, 29th Series, AMT, 5.50%, 07/01/48		7,445		7,563,831


				9,673,969

Pennsylvania — 8.5%
Allegheny County Airport Authority, ARB, Series A, AMT, 5.00%, 01/01/51		3,600		3,245,149


Security	Par (000)		Value

Pennsylvania (continued)
Bucks County Industrial Development Authority, RB, 4.00%, 07/01/46	$	425	$	279,603
Pennsylvania Economic Development Financing Authority, RB
AMT, 5.00%, 12/31/34		10,710		10,566,546
AMT, 5.00%, 12/31/38		8,670		8,206,086
AMT, 5.50%, 06/30/41		3,290		3,332,218
AMT, 5.00%, 06/30/42		6,910		6,350,221
AMT, 5.75%, 06/30/48		2,855		2,920,084
AMT, 5.25%, 06/30/53		4,695		4,546,355
Pennsylvania Economic Development Financing Authority, Refunding RB, AMT, 5.50%, 11/01/44		1,000		896,165
Pennsylvania Higher Education Assistance Agency, RB, Series B, AMT, Subordinate, 3.00%, 06/01/47		575		371,952
Pennsylvania Higher Educational Facilities Authority, RB, 4.00%, 08/15/44		1,000		843,664
Pennsylvania Higher Educational Facilities Authority, Refunding RB, Series A, 5.00%, 09/01/45		6,850		6,567,189
Pennsylvania Housing Finance Agency, RB, S/F Housing, Series 142-A, 5.00%, 10/01/50		1,500		1,438,056
Pennsylvania Turnpike Commission, RB
Series A-1, 5.00%, 12/01/41		3,510		3,528,669
Series B, 5.00%, 12/01/40		1,375		1,377,024
Series C, 5.50%, 12/01/23^(e)		1,315		1,315,986
Series B, Subordinate, 4.00%, 12/01/51		665		534,675
Pennsylvania Turnpike Commission, Refunding RB
3rd Series, 4.00%, 12/01/38		4,915		4,348,523
Series A, 5.00%, 12/01/38		1,480		1,494,921
Series A-1, 5.00%, 12/01/40		1,805		1,776,641
Series C, 5.00%, 12/01/39		4,775		4,823,141
Philadelphia Authority for Industrial Development, RB, Class A, 4.00%, 07/01/24^(e)		2,900		2,898,543


				71,661,411

Puerto Rico — 5.1%
Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, RB
Series A-1, Restructured, 4.75%, 07/01/53		4,709		3,972,312
Series A-1, Restructured, 5.00%, 07/01/58		15,466		13,403,353
Series A-2, Restructured, 4.54%, 07/01/53		500		405,793
Series A-2, Restructured, 4.78%, 07/01/58		1,528		1,279,333
Series A-2, Restructured, 4.33%, 07/01/40		19,762		17,064,735
Series B-1, Restructured, 4.75%, 07/01/53		1,377		1,163,937
Series B-2, Restructured, 4.78%, 07/01/58		1,335		1,116,228
Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, RB, CAB, Series A-1, Restructured, 0.00%, 07/01/46^(d)		16,341		4,039,306


				42,444,997

Rhode Island — 0.2%
Rhode Island Student Loan Authority, RB, Series A, AMT, 3.63%, 12/01/37		820		695,736
Rhode Island Turnpike & Bridge Authority, Refunding RB, Series A, 5.00%, 10/01/40		695		699,561


				1,395,297

South Carolina — 5.1%
County of Berkeley South Carolina, SAB
4.25%, 11/01/40		485		386,868
4.38%, 11/01/49		715		526,499
County of Charleston South Carolina, ARB, 5.25%, 12/01/23^(e)		2,505		2,507,358


7

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

South Carolina (continued)
Patriots Energy Group Financing Agency, RB, Series A1, 5.25%, 10/01/54^(a)	$	6,040	$	6,017,746
South Carolina Jobs-Economic Development Authority, RB
5.00%, 11/01/43		3,090		3,103,939
5.00%, 01/01/55^(b)		2,290		1,723,510
7.50%, 08/15/62^(b)		1,455		1,207,107
South Carolina Jobs-Economic Development Authority, Refunding RB, Series A, 4.25%, 05/01/48		1,685		1,405,069
South Carolina Ports Authority, ARB, Series B, AMT, 4.00%, 07/01/49		2,690		2,093,057
South Carolina Public Service Authority, RB
Series A, 5.50%, 12/01/54		16,210		15,876,936
Series A, 4.00%, 12/01/55		1,950		1,489,580
Series E, 5.50%, 12/01/53		1,730		1,691,478
South Carolina Public Service Authority, Refunding RB, 5.00%, 12/01/38		4,930		4,929,648
South Carolina State Housing Finance & Development Authority, Refunding RB, S/F Housing, Series A, 4.95%, 07/01/53		280		264,111


				43,222,906

Tennessee — 3.2%
Memphis-Shelby County Airport Authority, ARB, Series A, AMT, 5.00%, 07/01/49		3,655		3,456,074
Metropolitan Government Nashville & Davidson County Health & Educational Facilities Board, RB, 5.25%, 05/01/48		745		746,932
Metropolitan Nashville Airport Authority, ARB, Series B, AMT, 5.00%, 07/01/52		3,795		3,491,747
Tennergy Corp., RB, Series A, 5.50%, 10/01/53^(a)		3,805		3,817,302
Tennessee Energy Acquisition Corp., RB, Series A, 5.00%, 05/01/52^(a)		15,950		15,612,385


				27,124,440

Texas — 12.2%
Arlington Higher Education Finance Corp., RB^(b)
7.50%, 04/01/62		1,545		1,351,746
7.88%, 11/01/62		1,335		1,256,872
Board of Regents of the University of Texas System, Refunding RB, Series B, 5.00%, 08/15/49		4,305		4,348,039
Celina Independent School District, GO, (PSF), 5.00%, 02/15/47		4,530		4,619,502
Central Texas Turnpike System, RB
Series C, 5.00%, 08/15/37		3,290		3,127,326
Series C, 5.00%, 08/15/42		2,325		2,208,839
City of Austin Texas Airport System Revenue, ARB
5.25%, 11/15/47		3,300		3,263,214
AMT, 5.00%, 11/15/44		1,000		915,312
City of Corpus Christi Texas Utility System Revenue, Refunding RB, 4.00%, 07/15/48		1,790		1,471,758
City of Garland Texas Electric Utility System Revenue, Refunding RB, (AGM), 4.25%, 03/01/48		370		315,953
City of Houston Texas Airport System Revenue, ARB, Series A, AMT, 6.63%, 07/15/38		1,330		1,318,290
City of Houston Texas Airport System Revenue, Refunding ARB AMT, 5.00%, 07/15/27		765		738,661


Security	Par (000)		Value

Texas (continued)
City of Houston Texas Airport System Revenue, Refunding ARB (continued)
Series A, AMT, 1st Lien, Subordinate, (AGM), 5.25%, 07/01/48	$	5,205	$	5,091,328
City of Houston Texas Airport System Revenue, Refunding RB
Series A, AMT, 5.00%, 07/01/27		740		714,836
Sub-Series A, AMT, 4.00%, 07/01/46		2,780		2,298,329
Sub-Series A, AMT, 4.00%, 07/01/48		11,670		9,473,992
County of Harris Texas Toll Road Revenue, Refunding RB, 1st Lien, 4.00%, 08/15/45		1,575		1,348,436
Cypress-Fairbanks Independent School District, GO, (PSF), 4.00%, 02/15/48		845		723,792
Dallas Fort Worth International Airport, Refunding RB
Series B, 4.00%, 11/01/45		6,595		5,582,421
Series F, 5.25%, 11/01/33		2,300		2,300,000
Denton Independent School District, GO, (PSF), 5.00%, 08/15/48		2,440		2,480,136
Dickinson Independent School District, GO, (PSF), 4.13%, 02/15/48		1,285		1,121,391
Harris County Cultural Education Facilities Finance Corp., Refunding RB, 4.00%, 10/01/47		6,820		5,571,907
Harris County Flood Control District, Refunding GO, Series A, Sustainability Bonds, 4.00%, 09/15/48		1,775		1,497,192
Hutto Independent School District, GO, (PSF), 5.00%, 08/01/48		205		208,509
Leander Independent School District, Refunding GO, CAB, Series D, (PSF), 0.00%, 08/15/24^(d)(e)		8,085		4,020,468
Midland County Fresh Water Supply District No. 1, RB, CAB, Series A, 0.00%, 09/15/27^(d)(e)		5,000		2,764,377
New Hope Cultural Education Facilities Finance Corp., RB, Series A, 5.00%, 08/15/50^(b)		1,210		948,153
North Texas Tollway Authority, Refunding RB, 4.25%, 01/01/49		3,175		2,673,308
Port Authority of Houston of Harris County Texas, RB, 5.00%, 10/01/53		1,840		1,826,451
San Antonio Public Facilities Corp., Refunding RB, Convertible, 4.00%, 09/15/42		4,435		3,749,859
Spring Branch Independent School District, GO, (PSF), 4.00%, 02/01/48		1,705		1,477,264
Tarrant County Cultural Education Facilities Finance Corp., RB
5.00%, 11/15/51		9,245		8,816,988
Series A, 4.00%, 07/01/53		1,895		1,470,253
Series A, 5.00%, 07/01/53		2,325		2,205,451
Texas City Industrial Development Corp., RB, Series 2012, 4.13%, 12/01/45		690		535,692
Texas Department of Housing & Community Affairs, RB, S/F Housing, Series A, (GNMA), 3.75%, 09/01/49		1,355		1,089,299
Texas Municipal Gas Acquisition & Supply Corp. III, Refunding RB, 5.00%, 12/15/32		5,395		5,228,491
Texas Transportation Commission State Highway 249 System, RB, CAB^(d)
0.00%, 08/01/35		310		161,613
0.00%, 08/01/36		170		82,300
0.00%, 08/01/37		225		101,107
0.00%, 08/01/38		810		338,645
0.00%, 08/01/41		1,950		669,084


S C H E D U L E O F I N V E S T M E N T S		8

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value


Texas (continued)
Texas Transportation Commission State Highway 249 System, RB, CAB^(d)(continued)
0.00%, 08/01/44	$	695	$	195,317
0.00%, 08/01/45		1,775		466,288

				102,168,189

Utah — 2.4%
City of Salt Lake City Utah Airport Revenue, ARB
Series A, AMT, 5.00%, 07/01/47		11,685		11,034,755
Series A, AMT, 5.00%, 07/01/48		1,055		997,902
Series A, AMT, 5.25%, 07/01/48		1,205		1,185,677
Series A, AMT, 5.00%, 07/01/51		5,330		4,982,640
Utah Charter School Finance Authority, RB, Series A, 5.00%, 06/15/49^(b)		485		387,246
Utah Charter School Finance Authority, Refunding RB, 5.00%, 06/15/55^(b)		935		736,450
Utah Housing Corp., RB, S/F Housing, Series D2, Class III, 4.00%, 01/01/36		455		440,945


				19,765,615

Virginia — 0.7%
Roanoke Economic Development Authority, Refunding RB, 3.00%, 07/01/45		1,825		1,233,775
Tobacco Settlement Financing Corp., Refunding RB, Series B-1, 5.00%, 06/01/47		4,920		4,237,842


				5,471,617

Washington — 0.4%
Port of Seattle Washington, ARB, Series C, AMT, Intermediate Lien, 5.00%, 05/01/42		2,655		2,577,092
Snohomish County Housing Authority, Refunding RB, 4.00%, 04/01/44		1,140		906,418


				3,483,510

Wisconsin — 1.7%
Public Finance Authority, RB
5.00%, 10/15/41^(b)		570		471,570
5.00%, 10/15/56^(b)		225		166,345
Class A, 6.00%, 06/15/52		505		411,623
Class A, 6.13%, 06/15/57		570		463,654
Series A, 5.00%, 07/15/39^(b)		250		219,671
Series A, 5.00%, 07/01/40^(b)		450		366,840
Series A, 5.00%, 10/15/40^(b)		1,130		911,553
Series A, 5.00%, 07/15/49^(b)		955		791,794
Series A, 5.00%, 10/15/55^(b)		1,545		1,125,344
Series A-1, 4.50%, 01/01/35^(b)		600		503,161
Public Finance Authority, Refunding RB, 5.00%, 09/01/49^(b)		825		589,181
Wisconsin Housing & Economic Development Authority Home Ownership Revenue, RB, S/F Housing, Series A, 1.95%, 09/01/32		450		354,349
Wisconsin Housing & Economic Development Authority Housing Revenue, RB, M/F Housing Series A, 4.15%, 11/01/48		5,080		4,203,608


Security	Par (000)		Value


Wisconsin (continued)
Wisconsin Housing & Economic Development Authority Housing Revenue, RB, M/F Housing (continued) Series A, 4.45%, 05/01/57	$	2,715	$	2,256,062
Wisconsin Housing & EDA RB, M/F housing, Series A, RB, 4.30%, 11/01/53^(g)		1,605		1,301,593


				14,136,348


Total Municipal Bonds — 140.0% (Cost: $1,248,906,256)				1,176,208,015


Municipal Bonds Transferred to Tender Option Bond Trusts^(h)

District of Columbia — 0.3%
District of Columbia Housing Finance Agency, RB, M/F Housing, Series B-2, 4.10%, 09/01/39^(a)		3,052		2,621,686


Florida^(a)— 1.8%
City of Tampa Florida Water & Wastewater System Revenue, RB, Series A, 5.25%, 10/01/57		7,850		8,071,594
County of Seminole Florida Sales Tax Revenue, Refunding RB, Series B, (NPFGC), 5.25%, 10/01/31		6,300		6,810,737


				14,882,331

Illinois — 1.4%
Illinois Finance Authority, Refunding RB, Series A, 5.00%, 08/15/51^(a)		7,124		6,738,199
Illinois State Toll Highway Authority, RB, Series A, 5.00%, 01/01/38		5,014		5,015,239


				11,753,438

Michigan — 0.2%
Michigan State Housing Development Authority, RB, M/F Housing, Series A, 4.05%, 10/01/48^(a)		2,748		2,204,632


New York^(a)— 3.3%
New York City Housing Development Corp., Refunding RB, Series A, 4.15%, 11/01/38		5,885		5,202,351
New York State Dormitory Authority, Refunding RB, Series A, 4.00%, 03/15/47		6,600		5,643,913
Port Authority of New York & New Jersey, Refunding RB, 5.25%, 10/15/57		5,090		5,139,337
Triborough Bridge & Tunnel Authority, RB, Series A, 5.00%, 11/15/51		7,270		7,202,102
Triborough Bridge & Tunnel Authority, Refunding RB, Series C, 4.13%, 05/15/52		5,520		4,582,280


				27,769,983

Texas — 0.7%
City of San Antonio Texas Electric & Gas Systems Revenue, Refunding RB, 5.50%, 02/01/50		5,890		6,149,431


9

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value


Virginia — 1.2%
Hampton Roads Transportation Accountability Commission, RB, Series A, 4.00%, 07/01/57^(a)	$	11,880	$	9,771,843


Total Municipal Bonds Transferred to Tender Option Bond Trusts — 8.9% (Cost: $79,879,314)				75,153,344


Total Long-Term Investments — 148.9% (Cost: $1,328,785,570)				1,251,361,359


	Shares


Short-Term Securities

Money Market Funds — 8.4%
BlackRock Liquidity Funds, MuniCash, Institutional Class, 3.82%^(i)(j)		70,440,045		70,440,045


Total Short-Term Securities — 8.4% (Cost: $70,440,045)				70,440,045


Total Investments — 157.3% (Cost: $1,399,225,615)				1,321,801,404
Other Assets Less Liabilities — 1.3%				10,433,486
Liability for TOB Trust Certificates, Including Interest Expense and Fees Payable — (5.0)%				(41,631,876	)
VRDP Shares at Liquidation Value, Net of Deferred Offering Costs — (53.6)%				(450,256,676	)


Net Assets Applicable to Common Shares — 100.0%			$	840,346,338

^(a)	Variable rate security. Interest rate resets periodically. The rate shown is the effective interest rate as of period end. Security description also includes the reference rate and spread if published and available.

^(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)	Step coupon security. Coupon rate will either increase (step-up bond) or decrease (step-down bond) at regular intervals until maturity. Interest rate shown reflects the rate currently in effect.

^(d)	Zero-coupon bond.

^(e)	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.

^(f)	Security is collateralized by municipal bonds or U.S. Treasury obligations.

^(g)	When-issued security.

^(h)	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.

⁽ⁱ⁾	Affiliate of the Fund.

^(j)	Annualized 7-day yield as of period end.

For Fund compliance purposes, the Fund’s sector classifications refer to one or more of the sector sub-classifications used by one or more widely recognized market indexes or rating group indexes, and/or as defined by the investment adviser. These definitions may not apply for purposes of this report, which may combine such sector sub-classifications for reporting ease.

Affiliates

Investments in issuers considered to be affiliate(s) of the Fund during the period ended October 31, 2023 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:


Affiliated Issuer	Value at 07/31/23		Purchases at Cost			Proceeds from Sales		Net Realized Gain (Loss)		Change in Unrealized Appreciation (Depreciation)		Value at 10/31/23		Shares Held at 10/31/23		Income		Capital Gain Distributions from Underlying Funds
BlackRock Liquidity Funds, MuniCash, Institutional Class	$	16,360,404	$	54,079,236	^(a)	$	—	$	405	$	—	$	70,440,045		70,440,045	$	272,843	$	—

^(a)

Represents net amount purchased (sold).

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		226		12/19/23	$	23,963	$	286,206
U.S. Long Bond		284		12/19/23		30,938		703,482
5-Year U.S. Treasury Note		174		12/29/23		18,173		108,624

							$	1,098,312


S C H E D U L E O F I N V E S T M E N T S		10

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of 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); and

•

Level 3 – Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the Valuation Committee’s assumptions used in determining the fair value of 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 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. The categorization of a value determined for financial instruments is based on the pricing transparency of the 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 financial instruments, refer to its most recent financial statements.

The following table summarizes the Fund’s financial instruments categorized in the fair value hierarchy. The breakdown of the Fund’s financial instruments into major categories is disclosed in the Schedule of Investments above.


	Level 1		Level 2		Level 3		Total

Assets
Investments
Long-Term Investments
Municipal Bonds	$	—	$	1,176,208,015	$	—	$	1,176,208,015
Municipal Bonds Transferred to Tender Option Bond Trusts		—		75,153,344		—		75,153,344
Short-Term Securities
Money Market Funds		70,440,045		—		—		70,440,045


	$	70,440,045	$	1,251,361,359	$	—	$	1,321,801,404


Derivative Financial Instruments^(a)
Assets
Interest Rate Contracts	$	1,098,312	$	—	$	—	$	1,098,312

^(a)

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

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 fair value hierarchy as follows:



	Level 1		Level 2			Level 3		Total


Liabilities
TOB Trust Certificates	$	—	$	(41,363,000	)	$	—	$	(41,363,000	)
VRDP Shares at Liquidation Value		—		(450,300,000	)		—		(450,300,000	)

	$	—	$	(491,663,000	)	$	—	$	(491,663,000	)

Portfolio Abbreviation



AGC		Assured Guaranty Corp.

AGM		Assured Guaranty Municipal Corp.

AMBAC		AMBAC Assurance Corp.

AMT		Alternative Minimum Tax

ARB		Airport Revenue Bonds

BAB		Build America Bond

Portfolio Abbreviation (continued)



BAM		Build America Mutual Assurance Co.

BAM-TCRS		Build America Mutual Assurance Co.- Transferable Custodial Receipts

BHAC-CR		Berkshire Hathaway Assurance Corp. - Custodian Receipt

CAB		Capital Appreciation Bonds

COP		Certificates of Participation

CR		Custodian Receipt


11

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniYield Quality Fund, Inc. (MQY)

Portfolio Abbreviation (continued)



EDA		Economic Development Authority

FGIC		Financial Guaranty Insurance Co.

FHLMC		Federal Home Loan Mortgage Corp.

FNMA		Federal National Mortgage Association

GNMA		Government National Mortgage Association

GO		General Obligation Bonds

GTD		GTD Guaranteed

M/F		Multi-Family

NPFGC		National Public Finance Guarantee Corp.

NPFGC-IBC		National Public Finance Guarantee Corp. — Insured Bond Certificate

PSF		Permanent School Fund

RB		Revenue Bond

S/F		Single-Family

SAB		Special Assessment Bonds

SAP		Subject to Appropriations

SAW		State Aid Withholding

SONYMA		State of New York Mortgage Agency

ST		Special Tax

TA		Tax Allocation