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

Schedule of Investments (unaudited)

October 31, 2023

BlackRock MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Municipal Bonds

Alabama — 6.5%
Black Belt Energy Gas District, RB^(a)
Series A, 4.00%, 12/01/52	$	6,035	$	5,544,455
Series A, 5.25%, 01/01/54		2,450		2,445,872
Series F, 5.50%, 11/01/53		1,115		1,127,246
Black Belt Energy Gas District, Refunding RB, 4.00%, 06/01/51^(a)		9,590		8,827,223
County of Jefferson Alabama Sewer Revenue, Refunding RB
Series A, Senior Lien, (AGM), 5.00%, 10/01/44		570		561,594
Series A, Senior Lien, (AGM), 5.25%, 10/01/48		1,090		1,090,931
Series D, Sub Lien, 6.00%, 10/01/42		2,875		2,935,862
Series D, Sub Lien, 7.00%, 10/01/51		1,545		1,620,069
Energy Southeast A Cooperative District, RB, Series B-1, 5.75%, 04/01/54^(a)		4,670		4,829,399
Opelika Utilities Board, Refunding RB, 4.00%, 06/01/41		960		829,130
Southeast Energy Authority A Cooperative District, RB^(a)
Series A-1, 5.50%, 01/01/53		1,890		1,907,751
Series B, 5.00%, 01/01/54		4,595		4,559,619
Series B-1, 5.00%, 05/01/53		4,510		4,466,318


				40,745,469

Arizona — 3.2%
Arizona Industrial Development Authority, RB 4.38%, 07/01/39^(b)		575		451,493
Series A, (BAM), 4.00%, 06/01/44		425		352,238
Series A, 5.00%, 07/01/49^(b)		550		443,111
Series A, 5.00%, 07/01/54^(b)		425		333,628
Arizona Industrial Development Authority, Refunding RB^(b)
Series A, 5.50%, 07/01/52		130		109,848
Series G, 5.00%, 07/01/47		435		364,356
City of Phoenix Civic Improvement Corp., RB, 5.25%, 07/01/47^(c)		2,425		2,516,755
Glendale Industrial Development Authority, RB, 5.00%, 05/15/56		640		476,640
Industrial Development Authority of the City of Phoenix Arizona, RB, Series A, 5.00%, 07/01/46^(b)		2,120		1,801,698
Industrial Development Authority of the County of Pima, RB, 5.00%, 07/01/34^(b)		400		362,591
Industrial Development Authority of the County of Pima, Refunding RB, 5.00%, 06/15/49^(b)		300		243,748
Maricopa County Industrial Development Authority, RB, Series A, 4.00%, 01/01/41		925		819,074
Maricopa County Industrial Development Authority, Refunding RB, Series A, 4.13%, 09/01/38		775		681,374
Maricopa County Pollution Control Corp., Refunding RB, Series B, 3.60%, 04/01/40		1,400		1,075,185
Salt Verde Financial Corp., RB
5.00%, 12/01/32		3,500		3,453,455
5.00%, 12/01/37		6,645		6,439,541


				19,924,735

Arkansas — 1.8%
Arkansas Development Finance Authority, RB
AMT, 5.70%, 05/01/53		1,170		1,062,273
AMT, 4.75%, 09/01/49^(b)		4,235		3,887,373
Series A, AMT, 4.50%, 09/01/49^(b)		380		334,079


Security	Par (000)		Value

Arkansas (continued)
City of Benton Arkansas, RB, (AGM), 4.00%, 06/01/39	$	505	$	458,005
City of Fort Smith Arkansas Water & Sewer Revenue, Refunding RB, Subordinate, 4.00%, 10/01/40		840		707,523
City of Little Rock Arkansas, RB, 4.00%, 07/01/41		1,835		1,556,785
City of Springdale Arkansas Sales & Use Tax Revenue, RB, Series B, (BAM), 4.13%, 08/01/47		3,085		2,690,168
Pulaski County Public Facilities Board, RB, 5.00%, 12/01/42		465		455,300


				11,151,506

California — 8.0%
Bay Area Toll Authority, Refunding RB, 4.00%, 04/01/47		3,170		2,779,392
California Enterprise Development Authority, RB, 8.00%, 11/15/62^(b)		1,025		905,236
California Health Facilities Financing Authority, Refunding RB, Series A, 4.00%, 08/15/48		3,675		3,163,768
California Municipal Finance Authority, ARB, AMT, Senior Lien, 5.00%, 12/31/43		800		755,472
California Municipal Finance Authority, RB, S/F Housing
Series A, 5.25%, 08/15/39		185		180,662
Series A, 5.25%, 08/15/49		460		448,082
California Pollution Control Financing Authority, RB, AMT, 5.00%, 11/21/45^(b)		1,755		1,657,280
California State Public Works Board, RB
Series I, 5.50%, 11/01/30		2,500		2,504,958
Series I, 5.00%, 11/01/38		955		956,115
California Statewide Communities Development Authority, Refunding RB, 4.00%, 03/01/42		1,000		827,386
Carlsbad Unified School District, Refunding GO, Series B, 6.00%, 05/01/34^(a)		1,000		1,010,000
City of Los Angeles Department of Airports, ARB, Series A, AMT, 4.00%, 05/15/42		3,700		3,187,336
City of Los Angeles Department of Airports, Refunding ARB
AMT, Subordinate, 5.00%, 05/15/46		830		813,305
Series D, AMT, Subordinate, 4.00%, 05/15/51		1,755		1,409,704
CSCDA Community Improvement Authority, RB, M/F Housing^(b)
4.00%, 10/01/56		305		229,660
4.00%, 12/01/56		440		277,680
Series A, 4.00%, 06/01/58		1,515		1,033,515
Senior Lien, 3.13%, 06/01/57		1,595		912,564
Series A, Senior Lien, 4.00%, 12/01/58		845		571,460
Hartnell Community College District, GO, Series D, 7.00%, 08/01/34^(a)		1,650		1,851,941
Kern Community College District, GO, Series C, 5.50%, 11/01/23^(d)		2,445		2,445,000
Norwalk-La Mirada Unified School District, Refunding GO, Series E, Election 2002, (AGC), 0.00%, 08/01/38^(e)		8,000		3,942,058
Palomar Community College District, GO
Series B, Convertible, 6.20%, 08/01/39^(a)		2,605		2,795,385
Series B, Election 2006, 0.00%, 08/01/30^(e)		1,500		1,159,679
San Diego Community College District, GO, Election 2002, 6.00%, 08/01/27^(a)(d)		2,800		3,055,509
San Diego County Regional Airport Authority, ARB
Series B, AMT, 5.00%, 07/01/47		1,515		1,435,428
Series B, AMT, Subordinate, 5.00%, 07/01/46		1,330		1,263,961
Series B, AMT, Subordinate, 5.00%, 07/01/51		1,080		1,008,314


1

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

California (continued)
San Diego Unified School District, GO^(e)(f)
Class A, 0.00%, 07/01/29	$	5,315	$	4,221,461
Series A, 0.00%, 07/01/29		685		544,064
San Francisco City & County Airport Comm-San Francisco International Airport, Refunding ARB
Series A, AMT, 5.50%, 05/01/28		1,085		1,085,988
Series A, AMT, 5.25%, 05/01/33		850		850,452
Washington Township Health Care District, GO, Series B, Election 2004, 5.50%, 08/01/40		920		920,319


				50,203,134

Colorado — 4.0%
Board of Governors of Colorado State University System, Refunding RB, Series C, 4.00%, 03/01/47		5,650		4,731,488
City & County of Denver Colorado Airport System Revenue, ARB
Series B, 5.25%, 11/15/32		3,250		3,252,921
Series A, AMT, 5.50%, 11/15/28		1,000		1,000,703
Series A, AMT, 5.50%, 11/15/30		340		340,241
Series A, AMT, 5.50%, 11/15/31		405		405,287
City & County of Denver Colorado Airport System Revenue, Refunding ARB
Series A, AMT, 5.25%, 12/01/43		1,905		1,913,188
Series D, AMT, 5.75%, 11/15/45		1,160		1,208,265
City & County of Denver Colorado Pledged Excise Tax Revenue, RB, CAB^(e)
Series A-2, 0.00%, 08/01/37		1,490		706,909
Series A-2, 0.00%, 08/01/38		915		403,881
Colorado Educational & Cultural Facilities Authority, RB
5.50%, 07/01/40		2,510		2,510,066
5.00%, 03/01/50^(b)		360		285,713
Colorado Health Facilities Authority, RB
5.50%, 11/01/47		480		480,595
5.25%, 11/01/52		1,000		952,065
Colorado Health Facilities Authority, Refunding RB
Series A, 5.00%, 08/01/44		2,420		2,303,339
Series A, 4.00%, 11/15/46		1,610		1,322,580
Series A, 4.00%, 08/01/49		1,950		1,533,321
Series A, 4.00%, 11/15/50		1,480		1,179,169
Denver International Business Center Metropolitan District No. 1, GO, Series A, 4.00%, 12/01/48		555		422,957


				24,952,688

Connecticut — 0.1%
Connecticut State Health & Educational Facilities Authority, RB
5.25%, 07/15/48		390		379,725
4.25%, 07/15/53		525		420,998


				800,723

Delaware — 0.5%
County of Kent Delaware, RB
5.00%, 07/01/53		775		664,586
Series A, 5.00%, 07/01/40		330		307,986
Delaware State Health Facilities Authority, RB, 5.00%, 06/01/48		2,180		1,967,966


				2,940,538

District of Columbia — 3.4%
District of Columbia, Refunding RB, 5.00%, 10/01/48		1,695		1,604,992


Security	Par (000)		Value

District of Columbia (continued)
District of Columbia, TA, 5.13%, 06/01/41	$	1,520	$	1,520,360
Metropolitan Washington Airports Authority Aviation Revenue, Refunding ARB
Series A, AMT, 4.00%, 10/01/39		1,060		908,328
Series A, AMT, 5.25%, 10/01/48		1,395		1,373,307
Metropolitan Washington Airports Authority Dulles Toll Road Revenue, Refunding RB
Series B, 2nd Senior Lien, (AGC), 0.00%, 10/01/34^(e)		10,170		6,090,056
Series B, 2nd Senior Lien, (AGC), 0.00%, 10/01/35^(e)		13,485		7,578,949
Series B, Subordinate, 4.00%, 10/01/49		2,000		1,567,243
Washington Metropolitan Area Transit Authority Dedicated Revenue, RB, Series A, 4.00%, 07/15/46		875		744,251


				21,387,486

Florida — 7.2%
Broward County Florida Water & Sewer Utility Revenue, RB, Series A, 4.00%, 10/01/45		585		505,325
Capital Trust Agency, Inc., RB
5.00%, 01/01/55^(b)		305		212,324
Series A, 5.00%, 06/01/45^(b)		480		376,956
Series A, 5.00%, 12/15/49		160		139,639
Series A, 5.00%, 12/15/54		140		120,735
Series A, 5.50%, 06/01/57^(b)		170		135,007
Central Florida Expressway Authority, Refunding RB, Senior Lien, 5.00%, 07/01/48		2,760		2,701,984
City of Fort Lauderdale Florida Water & Sewer Revenue, RB, 5.50%, 09/01/53		9,065		9,549,124
City of Gainesville Florida Utilities System Revenue, Refunding RB, Series A, 5.00%, 10/01/47		4,115		4,117,694
City of South Miami Health Facilities Authority, Inc., Refunding RB, 5.00%, 08/15/42		1,290		1,256,506
City of Tampa Florida, RB, Series A, 4.00%, 11/15/46		1,930		1,594,193
City of Tampa Florida, RB, CAB^(e)
Series A, 0.00%, 09/01/49		285		55,327
Series A, 0.00%, 09/01/53		160		23,717
County of Broward Florida Airport System Revenue, ARB
Series A, AMT, 5.00%, 10/01/45		2,845		2,727,934
Series A, AMT, 5.00%, 10/01/49		1,000		951,677
County of Miami-Dade Florida Aviation Revenue, Refunding ARB, Series A, AMT, 5.00%, 10/01/44		3,525		3,392,840
County of Miami-Dade Florida Aviation Revenue, Refunding RB, Series A, AMT, 5.00%, 10/01/28		2,650		2,651,755
County of Miami-Dade Seaport Department, Refunding RB
Series A, AMT, 5.25%, 10/01/52		1,285		1,226,708
Series A-1, AMT, (AGM), 4.00%, 10/01/45		2,180		1,744,798
County of Osceola Florida Transportation Revenue, Refunding RB, CAB^(e)
Series A-2, 0.00%, 10/01/46		885		211,105
Series A-2, 0.00%, 10/01/47		1,040		230,578
Series A-2, 0.00%, 10/01/49		355		76,544
County of Pasco Florida, RB, (AGM), 5.75%, 09/01/54		500		524,686
Cypress Bluff Community Development District, SAB, Series A, 3.80%, 05/01/50^(b)		430		277,803


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 MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Florida (continued)
Escambia County Health Facilities Authority, Refunding RB, 4.00%, 08/15/45	$	1,765	$	1,365,772
Esplanade Lake Club Community Development District, SAB, Series A-1, 4.13%, 11/01/50		615		436,986
Florida Development Finance Corp., RB
6.50%, 06/30/57^(b)		925		797,308
Series A, 5.00%, 06/15/56		75		65,431
AMT, 5.00%, 05/01/29^(b)		270		245,785
Florida Development Finance Corp., Refunding RB, Series C, 5.00%, 09/15/50^(b)		270		201,413
Hillsborough County Aviation Authority, ARB, AMT, 5.00%, 10/01/48		1,730		1,655,416
Lakewood Ranch Stewardship District, SAB, 6.30%, 05/01/54		575		559,688
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		1,075		1,010,127
Palm Beach County Health Facilities Authority, Refunding RB, 4.00%, 08/15/49		1,185		964,696
Southern Groves Community Development District No. 5, Refunding SAB, 4.00%, 05/01/43		220		165,873
Stevens Plantation Community Development District, SAB, Series A, 7.10%, 05/01/35^(g)(h)		800		536,091
Trout Creek Community Development District, SAB
4.00%, 05/01/40		630		500,632
4.00%, 05/01/51		1,050		735,072
Village Community Development District No. 15, SAB, 5.25%, 05/01/54^(b)		600		529,554
Westside Community Development District, SAB, 4.00%, 05/01/50		815		567,663


				45,162,466

Georgia — 5.0%
Cobb County Kennestone Hospital Authority, RB, 4.00%, 04/01/52		3,165		2,534,282
Dalton Whitfield County Joint Development Authority, RB, 4.00%, 08/15/48		2,615		2,140,857
East Point Business & Industrial Development Authority, RB, Series A, 5.25%, 06/15/62^(b)		535		421,852
Gainesville & Hall County Hospital Authority, RB, Series A, 4.00%, 02/15/51		1,460		1,179,521
Main Street Natural Gas, Inc., RB
Series A, 5.00%, 05/15/38		1,265		1,205,322
Series A, 5.00%, 05/15/43		330		314,348
Series A, 5.00%, 05/15/49		4,575		4,258,915
Series A, 5.00%, 06/01/53^(a)		7,815		7,683,496
Series C, 5.00%, 09/01/53^(a)		9,240		9,166,302
Municipal Electric Authority of Georgia, RB
4.00%, 01/01/49		1,135		942,241
4.00%, 01/01/59		1,335		1,051,558
Series A, 5.00%, 01/01/59		480		444,245


				31,342,939


Security	Par (000)		Value

Hawaii — 0.1%
State of Hawaii Airports System Revenue, COP
AMT, 5.25%, 08/01/25	$	425	$	425,056
AMT, 5.25%, 08/01/26		460		460,111


				885,167

Idaho — 0.4%
Idaho Health Facilities Authority, RB, Series A, 5.00%, 03/01/39		500		485,871
Power County Industrial Development Corp., RB, AMT, 6.45%, 08/01/32		2,000		2,001,321


				2,487,192

Illinois — 9.4%
Chicago Board of Education, GO
Series A, 5.00%, 12/01/34		1,760		1,714,556
Series A, 5.00%, 12/01/40		1,410		1,283,636
Series A, 5.00%, 12/01/42		1,480		1,322,830
Series C, 5.25%, 12/01/35		2,655		2,588,420
Series D, 5.00%, 12/01/46		3,480		3,074,875
Series H, 5.00%, 12/01/36		585		551,678
Chicago Board of Education, Refunding GO
Series C, 5.00%, 12/01/25		425		426,590
Series C, 5.00%, 12/01/27		500		502,380
Series C, 5.00%, 12/01/34		475		461,836
Series F, 5.00%, 12/01/24		340		340,672
Series G, 5.00%, 12/01/34		315		306,315
Chicago Midway International Airport, Refunding ARB
Series B, 5.00%, 01/01/46		1,670		1,671,855
Series A, AMT, 2nd Lien, 5.00%, 01/01/41		1,620		1,526,988
Chicago O’Hare International Airport, Refunding ARB
Series A, AMT, Senior Lien, 4.38%, 01/01/53		1,390		1,151,529
Series B, Senior Lien, 5.00%, 01/01/53		1,040		1,017,504
City of Chicago Illinois Wastewater Transmission Revenue, RB, Series A, 2nd Lien, (AGM), 5.25%, 01/01/58		885		885,308
City of Chicago Illinois Waterworks Revenue, RB, Series A, 2nd Lien, (AGM), 5.25%, 11/01/53		1,445		1,456,435
Cook County Community College District No. 508, GO
5.50%, 12/01/38		3,075		3,000,558
5.25%, 12/01/43		2,935		2,655,603
Illinois Finance Authority, RB
Series A, 5.00%, 02/15/37		820		762,054
Series A, 5.00%, 02/15/50		130		107,672
Illinois Finance Authority, Refunding RB
Series A, 4.00%, 07/15/47		1,485		1,225,449
Series C, 4.00%, 02/15/41		1,945		1,685,657
Series C, 5.00%, 02/15/41		555		540,267
Illinois State Toll Highway Authority, RB
Series A, 5.00%, 01/01/40		5,625		5,634,420
Series B, 5.00%, 01/01/40		2,940		2,950,419
Metropolitan Pier & Exposition Authority, RB, 5.00%, 06/15/57		2,370		2,165,109
Metropolitan Pier & Exposition Authority, Refunding RB^(e)
Series B, (AGM), 0.00%, 06/15/44		3,765		1,222,306
Series B, (AGM), 0.00%, 06/15/47		22,775		6,092,870
State of Illinois, GO
5.25%, 02/01/31		1,485		1,488,037


3

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Illinois (continued)
State of Illinois, GO (continued)
5.25%, 02/01/32	$	2,365	$	2,369,843
5.00%, 02/01/39		1,910		1,868,624
5.50%, 05/01/39		795		813,422
Series B, 5.25%, 05/01/41		1,770		1,760,247
Series D, 5.00%, 11/01/28		900		921,637
State of Illinois, Refunding GO, Series B, 5.00%, 10/01/27		90		92,221
University of Illinois, RB, Series A, 5.00%, 04/01/44		1,225		1,226,529


				58,866,351

Indiana — 0.6%
City of Valparaiso Indiana, RB
AMT, 6.75%, 01/01/34		975		977,277
AMT, 7.00%, 01/01/44		2,355		2,360,101
Indianapolis Local Public Improvement Bond Bank, RB, 5.25%, 02/01/48		665		682,200


				4,019,578

Iowa — 0.2%
Iowa Finance Authority, RB, Series A, 5.00%, 05/15/48		1,900		1,350,427
Iowa Student Loan Liquidity Corp., Refunding RB, Series B, AMT, 3.00%, 12/01/39		190		167,241


				1,517,668

Kansas — 0.1%
Ellis County Unified School District No. 489 Hays, Refunding GO, Series B, (AGM), 4.00%, 09/01/52		705		571,076


Kentucky — 1.5%
County of Boyle Kentucky, Refunding RB, 5.00%, 06/01/37		2,500		2,513,839
Fayette County School District Finance Corp., RB
(NGFGC), 5.00%, 06/01/44		860		870,833
(BAM-TCRS), 5.00%, 06/01/46		760		763,505
(BAM-TCRS), 5.00%, 06/01/47		1,155		1,156,680
Kentucky Economic Development Finance Authority, Refunding RB, Series A, 5.00%, 08/01/44		735		694,777
Kentucky Public Transportation Infrastructure Authority, RB, CAB^(a)
Convertible, 6.75%, 07/01/43		1,770		1,938,955
Series C, Convertible, 6.45%, 07/01/34		500		560,546
Series C, Convertible, 6.60%, 07/01/39		830		909,482


				9,408,617

Louisiana — 1.7%
City of Shreveport Louisiana Water & Sewer Revenue, RB, Series B, Junior Lien, (AGM), 4.00%, 12/01/49		4,100		3,241,451
Lafayette Parish School Board Sale Tax Revenue, RB, 4.00%, 04/01/53		995		830,209
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%, 05/15/47		1,635		1,530,809


Security	Par (000)		Value

Louisiana (continued)
Louisiana Stadium & Exposition District, Refunding RB, Series A, 5.00%, 07/01/48	$	2,990	$	2,946,869
Tobacco Settlement Financing Corp. Refunding RB, Series A, 5.25%, 05/15/35		495		495,206


				10,546,893

Maryland — 0.8%
Anne Arundel County Consolidated Special Taxing District, ST
5.13%, 07/01/36		170		165,516
5.25%, 07/01/44		170		159,643
Howard County Housing Commission, RB, M/F Housing, 5.00%, 12/01/42		1,430		1,343,790
Maryland Health & Higher Educational Facilities Authority, RB
Series B, 4.00%, 04/15/50		1,645		1,316,657
Series C, 5.00%, 05/15/45		2,125		2,066,494


				5,052,100

Massachusetts — 2.8%
Commonwealth of Massachusetts, GO
Series C, 5.00%, 10/01/47		1,195		1,213,238
Series C, 5.00%, 10/01/52		1,240		1,255,949
Massachusetts Development Finance Agency, RB
5.00%, 01/01/48		1,115		1,003,269
5.00%, 10/01/48		830		696,100
Series A, 5.25%, 01/01/42		1,110		1,065,705
Series A, 5.00%, 01/01/47		5,005		4,524,126
Massachusetts Development Finance Agency, Refunding RB
4.00%, 07/01/39		1,140		940,729
5.00%, 04/15/40		400		360,187
Series A, 5.00%, 10/01/35		500		486,291
Series A, 5.00%, 10/01/43		750		687,842
Series P, 5.45%, 05/15/59		2,010		2,081,353
Massachusetts Educational Financing Authority, RB, Series B, AMT, 2.63%, 07/01/36		25		24,266
Massachusetts Educational Financing Authority, Refunding RB, Series B, AMT, 3.63%, 07/01/34		30		27,590
Massachusetts Housing Finance Agency, RB, M/F Housing, Series A, 3.80%, 12/01/43		160		126,573
Massachusetts Port Authority, ARB, Series E, AMT, 5.00%, 07/01/46		3,100		3,002,939


				17,496,157

Michigan — 6.1%
City of Detroit Michigan Water Supply System Revenue, RB, Series B, 2nd Lien, (AGM), 6.25%, 07/01/36		5		5,009
City of Lansing Michigan, Refunding GO, Series B, (AGM), 4.13%, 06/01/48		1,360		1,132,285
Eastern Michigan University, RB, Series A, 4.00%, 03/01/47^(d)		45		45,586
Great Lakes Water Authority Sewage Disposal System Revenue, RB
Series B, 2nd Lien, 5.25%, 07/01/47		1,490		1,491,452
Series B, 2nd Lien, 5.50%, 07/01/52		3,525		3,604,381
Series A, Senior Lien, 5.25%, 07/01/52		3,525		3,536,926


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 MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Michigan (continued)
Great Lakes Water Authority Water Supply System Revenue, RB
Series A, Senior Lien, 5.25%, 07/01/52	$	3,525	$	3,536,926
Series B, Senior Lien, 5.50%, 07/01/52		3,525		3,600,867
Michigan Finance Authority, RB
4.00%, 02/15/47		4,815		3,944,703
4.00%, 02/15/50		3,140		2,537,800
4.00%, 02/15/44		3,785		3,149,669
Series S, 5.00%, 11/01/44		1,555		1,503,539
Michigan Finance Authority, Refunding RB
4.00%, 11/15/46		570		466,088
Series A, 4.00%, 12/01/49		4,100		3,268,484
Michigan State Building Authority, Refunding RB, Series I, 4.00%, 10/15/52		710		573,271
Michigan State Hospital Finance Authority, Refunding RB, 5.00%, 11/15/47		215		208,327
Michigan State Housing Development Authority, RB, M/F Housing, Series A, AMT, 3.80%, 10/01/38		1,690		1,459,438
Michigan Strategic Fund, RB, AMT, 5.00%, 12/31/43		1,795		1,668,965
State of Michigan Trunk Line Revenue, RB, 4.00%, 11/15/46		905		774,482
State of Michigan Trunk Line Revenue, RB, BAB, 5.00%, 11/15/46		1,980		1,999,795


				38,507,993

Minnesota — 1.2%
City of Otsego Minnesota, Refunding RB, Series A, 5.00%, 09/01/44		425		347,733
City of Spring Lake Park Minnesota, RB, 5.00%, 06/15/39		1,080		917,372
Duluth Economic Development Authority, Refunding RB
Series A, 4.25%, 02/15/48		3,800		3,164,723
Series A, 5.25%, 02/15/53		415		399,516
Series A, 5.25%, 02/15/58		1,605		1,537,445
Housing & Redevelopment Authority of The City of St. Paul Minnesota, Refunding RB, Series A, 4.00%, 11/15/43		575		460,094
Minneapolis-St Paul Metropolitan Airports Commission, Refunding RB, Sub Series D, AMT, 5.00%, 01/01/41		290		284,552
Minnesota Higher Education Facilities Authority, RB, Series 8-K, 4.00%, 03/01/43		385		304,452


				7,415,887

Mississippi — 0.6%
Mississippi Development Bank, RB, (AGM), 6.88%, 12/01/40		3,595		3,602,773


Missouri — 0.8%
Health & Educational Facilities Authority of the State of Missouri, Refunding RB, Series A, 4.00%, 02/15/49		1,910		1,539,954
Kansas City Industrial Development Authority, ARB, Class B, AMT, 5.00%, 03/01/54		3,530		3,259,722


				4,799,676


Security	Par (000)		Value

Montana — 0.0%
Montana Board of Housing, RB, S/F Housing
Series B-2, 3.50%, 12/01/42	$	60	$	53,690
Series B-2, 3.60%, 12/01/47		100		99,422


				153,112

Nebraska — 0.1%
Douglas County Hospital Authority No. 3, Refunding RB, 5.00%, 11/01/45		400		387,312


Nevada — 0.7%
Carson City Nevada, Refunding RB, 5.00%, 09/01/42		650		617,651
County of Clark Department of Aviation, Refunding RB, Series A-2, Sub Lien, 4.25%, 07/01/36		1,000		972,441
Las Vegas Valley Water District, GO, Series A, 4.00%, 06/01/51		2,690		2,233,777
Tahoe-Douglas Visitors Authority, RB
5.00%, 07/01/40		595		544,513
5.00%, 07/01/45		420		368,244


				4,736,626

New Hampshire — 0.5%
New Hampshire Business Finance Authority, Refunding RB^(b)
Series B, 4.63%, 11/01/42		2,095		1,652,614
Series B, AMT, 3.75%, 07/01/45^(a)		395		263,676
Series C, AMT, 4.88%, 11/01/42		1,140		883,487
New Hampshire Housing Finance Authority, RB, M/F Housing, Series 1, 4.00%, 07/01/52		800		638,689


				3,438,466

New Jersey — 7.5%
Casino Reinvestment Development Authority, Inc., Refunding RB
5.25%, 11/01/39		1,265		1,222,753
5.25%, 11/01/44		1,885		1,754,831
New Jersey Economic Development Authority, ARB, Series B, AMT, 5.63%, 11/15/30		660		657,531
New Jersey Economic Development Authority, RB
5.00%, 12/15/28^(d)		60		63,830
5.00%, 06/15/36		460		471,029
5.00%, 06/15/43		100		98,553
Class A, 5.25%, 11/01/47		4,795		4,859,903
Series A, 5.00%, 06/15/47		2,500		2,443,385
Series B, 4.50%, 06/15/40		1,270		1,178,539
Series EEE, 5.00%, 06/15/48		4,275		4,179,219
Series LLL, 5.00%, 06/15/34		365		377,678
Series UU, 5.00%, 06/15/24^(d)		80		80,538
AMT, (AGM), 5.00%, 01/01/31		790		781,240
AMT, (AGM), 5.13%, 07/01/42		200		189,791
AMT, 5.38%, 01/01/43		3,000		2,904,636
New Jersey Economic Development Authority, Refunding ARB, AMT, 5.00%, 10/01/47		1,060		965,998
New Jersey Economic Development Authority, Refunding RB, Series UU, 5.00%, 06/15/40		345		347,318
New Jersey Economic Development Authority, Refunding SAB
6.50%, 04/01/28		3,735		3,763,875
5.75%, 04/01/31		2,675		2,392,776


5

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

New Jersey (continued)
New Jersey Higher Education Student Assistance Authority, Refunding RB
Series B, AMT, 4.00%, 12/01/41	$	3,390	$	3,077,863
Series C, AMT, Subordinate, 5.00%, 12/01/52		3,425		3,173,483
New Jersey Housing & Mortgage Finance Agency, Refunding RB, Series A, AMT, 3.80%, 10/01/32		1,100		994,711
New Jersey Transportation Trust Fund Authority, RB
Series AA, 4.13%, 06/15/39		1,040		951,886
Series AA, 5.00%, 06/15/45		900		885,632
Series AA, 5.00%, 06/15/46		400		387,982
Series S, 5.25%, 06/15/43		2,810		2,837,852
Series S, 5.00%, 06/15/46		2,070		2,010,761
New Jersey Transportation Trust Fund Authority, RB, CAB, Series A, 0.00%, 12/15/35^(e)		1,000		549,394
New Jersey Transportation Trust Fund Authority, Refunding RB
Series A, 5.00%, 06/15/37		1,440		1,478,136
Series A, 5.25%, 06/15/42		575		588,127
Tobacco Settlement Financing Corp., Refunding RB
Series A, 5.00%, 06/01/46		650		612,654
Series A, 5.25%, 06/01/46		715		702,880


				46,984,784

New Mexico — 0.0%
City of Santa Fe New Mexico, RB, Series A, 5.00%, 05/15/44		200		156,978


New York — 13.0%
City of New York, GO
Series A, 5.00%, 08/01/46		2,265		2,253,892
Series A, 5.00%, 08/01/48		4,750		4,705,566
Series A-1, 4.00%, 09/01/46		2,175		1,848,330
Series C, 5.00%, 08/01/43		805		811,038
City of New York, Refunding GO, Series B, 4.00%, 08/01/32		3,990		3,993,651
Erie Tobacco Asset Securitization Corp., Refunding RB, Series A, 5.00%, 06/01/45		3,585		3,104,996
Metropolitan Transportation Authority, RB, Series A-1, 5.25%, 11/15/39		1,000		1,000,332
Metropolitan Transportation Authority, Refunding RB
Series C-1, 4.75%, 11/15/45		1,950		1,793,455
Series C-1, 5.00%, 11/15/50		370		349,051
Series C-1, 5.25%, 11/15/55		1,040		1,022,570
Series C-1, 5.00%, 11/15/56		2,670		2,499,172
Series C-1, 5.25%, 11/15/56		10		9,794
New York City Municipal Water Finance Authority, Refunding RB
Series BB, 4.00%, 06/15/47		3,660		3,146,381
Series BB-1, 4.00%, 06/15/45		855		748,654
New York City Transitional Finance Authority Building Aid Revenue, RB, Series S-1, Subordinate, (SAW), 4.00%, 07/15/42		1,015		888,365
New York City Transitional Finance Authority Future Tax Secured Revenue, RB, Series F-1, Subordinate, 4.00%, 02/01/51		6,500		5,412,092
New York Counties Tobacco Trust IV, Refunding RB
Series A, 5.00%, 06/01/38		1,385		1,252,485
Series A, 6.25%, 06/01/41^(b)		3,000		2,999,908


Security	Par (000)		Value

New York (continued)
New York Counties Tobacco Trust VI, Refunding RB
Series A-2B, 5.00%, 06/01/45	$	255	$	226,128
Series A-2B, 5.00%, 06/01/51		245		209,709
New York Liberty Development Corp., Refunding RB
3.13%, 09/15/50		5,005		3,263,720
Class 1, 5.00%, 11/15/44^(b)		3,920		3,498,048
Class 2, 5.38%, 11/15/40^(b)		1,450		1,340,215
Series A, 2.88%, 11/15/46		1,915		1,241,852
Series A, (BAM-TCRS), 3.00%, 11/15/51		4,565		2,938,384
Series A, 3.00%, 11/15/51		2,825		1,831,355
New York Power Authority, RB, 5.13%, 11/15/58^(c)		1,305		1,297,805
New York Power Authority, Refunding RB, Series A, 4.00%, 11/15/55		1,160		942,322
New York State Dormitory Authority, RB, Series A, 4.00%, 03/15/47		545		456,444
New York State Urban Development Corp., RB
Series A, 4.00%, 03/15/45		3,000		2,614,604
Series A, 4.00%, 03/15/49		1,600		1,340,812
New York State Urban Development Corp., Refunding RB
4.00%, 03/15/49		1,850		1,549,986
Series A, 4.00%, 03/15/44		7,275		6,362,424
New York Transportation Development Corp., RB
5.63%, 04/01/40		1,265		1,251,745
AMT, 5.00%, 10/01/35		1,910		1,822,719
Port Authority of New York & New Jersey, Refunding ARB
Series 198, 5.25%, 11/15/56		715		721,006
AMT, 5.00%, 01/15/47		4,860		4,743,507
Triborough Bridge & Tunnel Authority Sales Tax Revenue, RB, Series A, 4.13%, 05/15/53		6,415		5,419,977
TSASC, Inc., Refunding RB, Series A, 5.00%, 06/01/41		535		525,402
Westchester Tobacco Asset Securitization Corp., Refunding RB, Sub-Series C, 4.00%, 06/01/42		295		261,704


				81,699,600

North Carolina — 0.7%
Greater Asheville Regional Airport Authority, ARB, AMT, (AGM), 5.25%, 07/01/48		3,755		3,686,779
University of North Carolina at Chapel Hill, RB, 5.00%, 02/01/49		460		444,255


				4,131,034

Ohio — 2.1%
Buckeye Tobacco Settlement Financing Authority, Refunding RB
Series A-2, 4.00%, 06/01/48		610		487,528
Series B-2, 5.00%, 06/01/55		9,005		7,363,403
County of Franklin Ohio, RB
Series A, 4.00%, 12/01/44		365		310,688
Series A, 5.00%, 12/01/47		290		281,672
County of Hamilton Ohio, RB, Series CC, 5.00%, 11/15/49		550		530,839
County of Hamilton Ohio, Refunding RB
4.00%, 08/15/50		1,085		875,814
Series A, 3.75%, 08/15/50		755		579,613


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 MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Ohio (continued)
Ohio Air Quality Development Authority, RB, AMT, 5.00%, 07/01/49^(b)	$	1,135	$	904,715
Ohio Housing Finance Agency, RB, S/F Housing, Series A, (FHLMC, FNMA, GNMA), 4.00%, 09/01/48		50		43,140
State of Ohio, Refunding RB, Series A, 4.00%, 01/15/50		2,250		1,779,575


				13,156,987

Oklahoma — 0.5%
Oklahoma Development Finance Authority, RB, Series B, 5.50%, 08/15/52		1,080		930,238
Oklahoma Turnpike Authority, RB, Series A, 4.00%, 01/01/48		1,780		1,513,618
Oklahoma Water Resources Board, RB, 4.00%, 04/01/48		950		819,549


				3,263,405

Oregon — 1.2%
Clackamas County School District No. 12 North Clackamas, GO, CAB, Series A, (GTD), 0.00%, 06/15/38^(e)		510		226,580
Oregon State Facilities Authority, Refunding RB, Series A, 5.00%, 04/01/45		1,475		1,456,997
Port of Portland Oregon Airport Revenue, Refunding ARB, 29th Series, AMT, 5.50%, 07/01/48		5,620		5,709,702
State of Oregon Housing & Community Services Department, RB, S/F Housing, Series C, 3.95%, 07/01/43		110		91,152


				7,484,431

Pennsylvania — 6.9%
Allegheny County Airport Authority, ARB, Series A, AMT, (AGM-CR), 4.00%, 01/01/56		1,670		1,284,826
Commonwealth of Pennsylvania, GO, 4.00%, 03/01/38		7,250		3,383,444
Lancaster Industrial Development Authority, RB, 5.00%, 12/01/44		780		718,852
Montgomery County Higher Education and Health Authority, Refunding RB
4.00%, 09/01/51		1,430		1,117,605
5.00%, 09/01/48		980		916,833
Series A, 4.00%, 09/01/49		1,380		1,088,295
Montgomery County Industrial Development Authority, RB, Series C, 5.00%, 11/15/45		270		241,623
Northampton County General Purpose Authority, Refunding RB, 4.00%, 11/01/38		2,595		2,319,537
Pennsylvania Economic Development Financing Authority, RB
5.50%, 06/30/40		2,000		2,029,340
Series A-1, 4.00%, 04/15/50		470		373,868
AMT, 5.00%, 06/30/42		2,845		2,614,527
AMT, 5.75%, 06/30/48		3,150		3,221,809
Pennsylvania Economic Development Financing Authority, Refunding RB, AMT, 5.50%, 11/01/44		1,905		1,707,194
Pennsylvania Higher Education Assistance Agency, RB, Series B, AMT, Subordinate, 3.00%, 06/01/47		100		64,687
Pennsylvania Housing Finance Agency, RB, S/F Housing, Series 142-A, 5.00%, 10/01/50		1,130		1,083,336


Security	Par (000)		Value

Pennsylvania (continued)
Pennsylvania Turnpike Commission Oil Franchise Tax Revenue, Refunding RB
Series A, 4.00%, 12/01/51	$	9,445	$	7,831,480
Series B, 4.00%, 12/01/53		1,435		1,143,344
Pennsylvania Turnpike Commission, RB
Series A, 5.00%, 12/01/44		1,380		1,367,381
Sub-Series B-1, 5.25%, 06/01/47		1,170		1,174,471
Series A, Subordinate, 4.00%, 12/01/50		1,075		867,802
Series A, Subordinate, (BAM-TCRS), 4.00%, 12/01/50		535		442,163
Series B, Subordinate, 4.00%, 12/01/51		610		490,454
Pennsylvania Turnpike Commission, Refunding RB, Series C, 4.00%, 12/01/51		1,555		1,263,175
Pocono Mountains Industrial Park Authority, RB, 5.00%, 08/15/40		5,560		5,296,233
Pottsville Hospital Authority, Refunding RB, Series B, 5.00%, 07/01/45		1,250		1,209,506


				43,251,785

Puerto Rico — 5.1%
Commonwealth of Puerto Rico, GO
Series A-1, Restructured, 5.63%, 07/01/29		3,910		3,995,127
Series A-1, Restructured, 5.75%, 07/01/31		3,524		3,622,431
Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, RB
Series A-1, Restructured, 4.75%, 07/01/53		9,243		7,797,001
Series A-1, Restructured, 5.00%, 07/01/58		11,123		9,639,564
Series A-2, Restructured, 4.78%, 07/01/58		2,097		1,755,733
Series B-2, Restructured, 4.78%, 07/01/58		412		344,484
Puerto Rico Sales Tax Financing Corp. Sales Tax Revenue, RB, CAB, Series A-1, Restructured, 0.00%, 07/01/46^(e)		19,562		4,835,500


				31,989,840

Rhode Island — 0.6%
Rhode Island Health and Educational Building Corp., RB, Series A, 4.00%, 09/15/47		1,975		1,591,251
Rhode Island Health and Educational Building Corp., Refunding RB, Series A, (AGM), 3.75%, 05/15/32 ..		1,155		1,110,231
Rhode Island Housing & Mortgage Finance Corp., RB, M/F Housing, Series 3-B, 4.13%, 10/01/49		295		226,927
Rhode Island Student Loan Authority, RB, Series A, AMT, 3.63%, 12/01/37		735		623,617


				3,552,026

South Carolina — 2.0%
County of Berkeley South Carolina, SAB
4.25%, 11/01/40		315		251,265
4.38%, 11/01/49		470		346,091
Patriots Energy Group Financing Agency, RB, Series A1, 5.25%, 10/01/54^(a)		1,575		1,569,197
South Carolina Jobs-Economic Development Authority, RB, 5.00%, 01/01/55^(b)		845		635,967
South Carolina Jobs-Economic Development Authority, Refunding RB
5.00%, 02/01/38		2,875		2,883,290
4.00%, 12/01/44		2,015		1,680,407
Series A, 5.00%, 05/01/43		1,680		1,623,150
Series A, 4.25%, 05/01/48		1,445		1,204,940


7

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

South Carolina (continued)
South Carolina Ports Authority, ARB, Series B, AMT, 4.00%, 07/01/49	$	1,745	$	1,357,764
South Carolina Public Service Authority, RB, Series E, 5.00%, 12/01/48		440		417,560
South Carolina Public Service Authority, Refunding RB, Series A, 5.00%, 12/01/36		175		175,565
South Carolina State Housing Finance & Development Authority, Refunding RB, S/F Housing, Series A, 4.95%, 07/01/53		210		198,083


				12,343,279

South Dakota — 0.1%
City of Rapid City South Dakota Sales Tax Revenue, RB, 4.00%, 12/01/26^(d)		740		747,447


Tennessee — 4.5%
Chattanooga-Hamilton County Hospital Authority, Refunding RB, Series A, 5.00%, 10/01/44		875		770,281
Memphis-Shelby County Airport Authority, ARB
Series A, AMT, 5.00%, 07/01/45		3,515		3,372,161
Series A, AMT, 5.00%, 07/01/49		11,275		10,661,351
Metropolitan Government Nashville & Davidson County Health & Educational Facilities Board, RB, 5.25%, 05/01/48		555		556,439
Metropolitan Government Nashville & Davidson County Health & Educational Facilities Board, Refunding RB
5.25%, 10/01/58		1,385		1,251,895
Series A, 4.00%, 10/01/49		230		170,498
Tennessee Energy Acquisition Corp., RB, Series A, 5.00%, 05/01/52^(a)		11,645		11,398,509


				28,181,134

Texas — 10.6%
Arlington Higher Education Finance Corp., RB^(b)
7.50%, 04/01/62		1,165		1,019,278
7.88%, 11/01/62		1,005		946,185
City of Austin Texas Airport System Revenue, ARB
5.25%, 11/15/47		2,500		2,472,131
Series B, AMT, 5.00%, 11/15/44		1,290		1,230,504
City of Garland Texas Electric Utility System Revenue, Refunding RB, (AGM), 4.25%, 03/01/48		275		234,830
City of Houston Texas Airport System Revenue, Refunding ARB, Series A, AMT, 1st Lien, Subordinate, (AGM), 5.25%, 07/01/48		6,455		6,314,030
City of Houston Texas Airport System Revenue, Refunding RB
Sub-Series A, AMT, 4.00%, 07/01/40		1,525		1,323,311
Sub-Series A, AMT, 4.00%, 07/01/46		1,390		1,149,165
Sub-Series A, AMT, 4.00%, 07/01/48		3,420		2,776,440
Cypress-Fairbanks Independent School District, GO, (PSF), 4.00%, 02/15/48		630		539,632
Dallas Fort Worth International Airport, Refunding RB, Series B, 4.00%, 11/01/45		5,000		4,232,313
Denton Independent School District, GO, (PSF), 5.00%, 08/15/48		1,820		1,849,937
Gunter Independent School District, GO, (PSF), 4.00%, 02/15/53		470		389,355
Harris County Cultural Education Facilities Finance Corp., Refunding RB, 4.00%, 10/01/47		655		535,132


Security	Par (000)		Value

Texas (continued)
Harris County Flood Control District, Refunding GO, Series A, Sustainability Bonds, 4.00%, 09/15/48	$	1,340	$	1,130,274
Harris County-Houston Sports Authority, Refunding RB, Series G, Senior Lien, (NPFGC), 0.00%, 11/15/41^(e)		10,690		3,360,694
Hutto Independent School District, GO, (PSF), 5.00%, 08/01/48		155		157,653
Leander Independent School District, Refunding GO, CAB, Series D, (PSF), 0.00%, 08/15/24^(d)(e)		370		215,307
Midland County Fresh Water Supply District No. 1, RB, CAB, Series A, 0.00%, 09/15/27^(d)(e)		14,680		7,078,808
New Hope Cultural Education Facilities Finance Corp., RB, Series A, 5.00%, 08/15/50^(b)		455		356,537
North Texas Tollway Authority, RB, Series B, 0.00%, 09/01/31^(d)(e)		2,415		1,120,376
North Texas Tollway Authority, Refunding RB, 4.25%, 01/01/49		2,835		2,387,033
Port Authority of Houston of Harris County Texas, RB, 5.00%, 10/01/53		1,375		1,364,875
San Antonio Public Facilities Corp., Refunding RB, Convertible, 4.00%, 09/15/42		5,150		4,354,402
Spring Branch Independent School District, GO, (PSF), 4.00%, 02/01/48		1,275		1,104,699
Tarrant County Cultural Education Facilities Finance Corp., RB
5.00%, 11/15/51		3,705		3,533,471
Series A, 4.00%, 07/01/53		6,695		5,194,377
Series A, 5.00%, 07/01/53		2,080		1,973,049
Series B, 5.00%, 07/01/48		3,330		3,201,119
Texas City Industrial Development Corp., RB, Series 2012, 4.13%, 12/01/45		255		197,973
Texas Department of Housing & Community Affairs, RB, S/F Housing, Series A, (GNMA), 3.75%, 09/01/49		850		683,324
Texas Private Activity Bond Surface Transportation Corp., RB, AMT, 5.00%, 06/30/58		2,080		1,895,517
Texas Transportation Commission State Highway 249 System, RB, CAB^(e)
0.00%, 08/01/35		270		140,760
0.00%, 08/01/36		145		70,197
0.00%, 08/01/37		195		87,626
0.00%, 08/01/38		200		83,616
0.00%, 08/01/39		1,000		391,045
0.00%, 08/01/43		795		238,753
0.00%, 08/01/44		605		170,024
0.00%, 08/01/45		1,135		298,162
Texas Water Development Board, RB, 4.00%, 10/15/45		1,195		1,042,654


				66,844,568

Utah — 0.9%
City of Salt Lake City Utah Airport Revenue, ARB
Series A, AMT, 5.00%, 07/01/48		2,205		2,085,662
Series A, AMT, 5.25%, 07/01/48		900		885,568
Series A, AMT, 5.00%, 07/01/51^(c)		1,340		1,252,671
Utah Charter School Finance Authority, RB
(UT CSCE), 5.00%, 10/15/48		360		332,718
Series A, 5.00%, 06/15/39^(b)		200		169,884


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 MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Utah (continued)
Utah Charter School Finance Authority, Refunding RB
5.00%, 06/15/40^(b)	$	150	$	129,063
(UT CSCE), 4.00%, 04/15/42		400		320,545
5.00%, 06/15/55^(b)		385		303,244


				5,479,355

Vermont — 0.0%
Vermont Student Assistance Corp., RB, Series A, AMT, 4.13%, 06/15/30		285		278,958


Virginia — 1.3%
Ballston Quarter Community Development Authority, TA, Series A, AMT, 5.38%, 03/01/36^(g)(h)		465		346,044
Fairfax County Industrial Development Authority, Refunding RB, 4.00%, 05/15/42		4,870		4,253,651
Roanoke Economic Development Authority, Refunding RB, 3.00%, 07/01/45		1,385		936,317
Virginia Beach Development Authority, Refunding RB
5.00%, 09/01/40		520		441,033
4.00%, 09/01/48		375		251,609
Virginia Small Business Financing Authority, RB, AMT, 5.00%, 12/31/52		2,330		2,150,293


				8,378,947

Washington — 2.6%
Port of Seattle Washington, ARB
Series A, AMT, 5.00%, 05/01/43		1,470		1,411,763
Series C, AMT, Intermediate Lien, 5.00%, 05/01/42		2,565		2,489,732
Port of Seattle Washington, Refunding ARB, Series C, AMT, Intermediate Lien, 5.00%, 08/01/46		5,645		5,383,585
State of Washington, COP, Series B, 5.00%, 07/01/37		3,910		4,039,387
Washington State Convention Center Public Facilities District, RB, Class B, 3.00%, 07/01/58		3,715		2,174,872
Washington State Housing Finance Commission, Refunding RB^(b)
5.00%, 01/01/38		600		486,113
5.00%, 01/01/43		900		693,114


				16,678,566

West Virginia — 0.6%
Morgantown Utility Board, Inc. RB, 4.00%, 12/01/48		1,510		1,213,891
West Virginia Hospital Finance Authority, RB,
Series A, 4.00%, 06/01/51		2,910		2,333,403


				3,547,294

Wisconsin — 1.1%
Public Finance Authority, RB
Class A, 6.00%, 06/15/52		385		313,811
Class A, 6.13%, 06/15/57		435		353,842
Series A, 5.00%, 07/15/39^(b)		100		87,868
Series A, 5.00%, 10/15/40^(b)		425		342,841
Series A, 5.00%, 07/15/49^(b)		245		203,130
Series A, 5.00%, 10/15/50^(b)		540		404,140
Series A, 5.00%, 07/01/55^(b)		300		218,783
Series A, 5.00%, 10/15/55^(b)		560		407,892
Series A-1, 4.50%, 01/01/35^(b)		225		188,685


Security	Par (000)		Value

Wisconsin (continued)
Public Finance Authority, Refunding RB
5.00%, 09/01/49^(b)	$	305	$	217,819
Series A, 5.00%, 11/15/49		335		291,334
AMT, 4.00%, 08/01/35		280		229,062
Wisconsin Health & Educational Facilities Authority, Refunding RB, 5.00%, 04/01/44		2,005		2,036,067
Wisconsin Housing & Economic Development Authority Housing Revenue, RB, M/F Housing, Series A, 4.45%, 05/01/57		460		382,243
Wisconsin Housing & EDA RB, M/F housing, Series A, RB, 4.30%, 11/01/53		1,395		1,131,291


				6,808,808


Total Municipal Bonds — 128.6% (Cost: $869,694,244)				807,463,554


Municipal Bonds Transferred to Tender Option Bond Trusts⁽ⁱ⁾

District of Columbia — 0.2%
District of Columbia Housing Finance Agency, RB, M/F Housing, Series B-2, 4.10%, 09/01/39		1,300		1,116,642


Iowa — 0.2%
Iowa Finance Authority, Refunding RB, Series E, 4.00%, 08/15/46		1,450		1,170,832


Michigan — 0.3%
Michigan State Housing Development Authority, RB, M/F Housing, Series A, 4.05%, 10/01/48		2,338		1,875,941


New York — 3.8%
New York City Housing Development Corp., Refunding RB, Series A, 4.15%, 11/01/38		2,710		2,396,922
New York City Municipal Water Finance Authority, RB, Series AA-1, 5.25%, 06/15/52		10,990		11,277,880
New York City Transitional Finance Authority Building Aid Revenue, RB, 5.25%, 05/01/48		10,070		10,366,824


				24,041,626

Oklahoma — 1.4%
Oklahoma Turnpike Authority, RB, 5.50%, 01/01/53		8,124		8,523,303


Pennsylvania — 1.3%
Pennsylvania Turnpike Commission, RB, Series B, 5.25%, 12/01/52		8,294		8,412,185


Texas — 0.7%
City of San Antonio Texas Electric & Gas Systems Revenue, Refunding RB, 5.50%, 02/01/50		4,400		4,593,802


9

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniHoldings Fund, Inc. (MHD)

(Percentages shown are based on Net Assets)


Security	Par (000)		Value

Wisconsin — 0.4%
Wisconsin Housing & Economic Development Authority Housing Revenue, RB, M/F Housing Series A, 4.10%, 11/01/43	$	1,342	$	1,111,408
Series A, 4.45%, 05/01/57		1,678		1,389,260


				2,500,668


Total Municipal Bonds Transferred to Tender Option Bond Trusts — 8.3% (Cost: $54,557,391)				52,234,999


Total Long-Term Investments — 136.9% (Cost: $924,251,635)				859,698,553


	Shares

Short-Term Securities

Money Market Funds — 21.2%
BlackRock Liquidity Funds, MuniCash, Institutional Class, 3.82%^(j)(k)		133,483,323		133,483,323


Total Short-Term Securities — 21.2% (Cost: $133,482,229)				133,483,323


Total Investments — 158.1% (Cost: $1,057,733,864)				993,181,876

Other Assets Less Liabilities — 1.5%				9,174,038

Liability for TOB Trust Certificates, Including Interest Expense and Fees Payable — (4.2)%				(26,411,950	)

VMTP Shares at Liquidation Value, Net of Deferred Offering Costs — (55.4)%				(347,800,000	)


Net Assets Applicable to Common Shares — 100.0%			$	628,143,964

^(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)	When-issued security.

^(d)	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.

^(e)	Zero-coupon bond.

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

^(g)	Issuer filed for bankruptcy and/or is in default.

^(h)	Non-income producing security.

⁽ⁱ⁾	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.

^(j)	Affiliate of the Fund.

^(k)	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	$	38,863,368	$	94,619,902	^(a)	$	—	$	1,529	$	(1,476	)	$	133,483,323		133,483,323	$	337,364	$	—

^(a)

Represents net amount purchased (sold).


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 MuniHoldings Fund, Inc. (MHD)

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		166		12/19/23	$	17,601	$	210,222
U.S. Long Bond		229		12/19/23		24,947		567,244
5-Year U.S. Treasury Note		126		12/29/23		13,160		78,659

							$	856,125

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	$	—	$	807,463,554	$	—	$	807,463,554
Municipal Bonds Transferred to Tender Option Bond Trusts		—		52,234,999		—		52,234,999
Short-Term Securities
Money Market Funds		133,483,323		—		—		133,483,323

	$	133,483,323	$	859,698,553	$	—	$	993,181,876

Derivative Financial Instruments^(a)
Assets
Interest Rate Contracts	$	856,125	$	—	$	—	$	856,125

^(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	$	—	$	(26,349,793	)	$	—	$	(26,349,793	)
VMTP Shares at Liquidation Value		—		(347,800,000	)		—		(347,800,000	)

	$	—	$	(374,149,793	)	$	—	$	(374,149,793	)


		11

Schedule of Investments (unaudited) (continued)

October 31, 2023

BlackRock MuniHoldings Fund, Inc. (MHD)


Portfolio Abbreviation

AGC		Assured Guaranty Corp.

AGM		Assured Guaranty Municipal Corp.

AGM-CR		AGM Insured Custodial Receipt

AMT		Alternative Minimum Tax

ARB		Airport Revenue Bonds

BAB		Build America Bond

BAM		Build America Mutual Assurance Co.

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

CAB		Capital Appreciation Bonds

COP		Certificates of Participation

CR		Custodian Receipt

EDA		Economic Development Authority

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.

PSF		Permanent School Fund

RB		Revenue Bond

S/F		Single-Family

SAB		Special Assessment Bonds

SAW		State Aid Withholding

ST		Special Tax

TA		Tax Allocation

UT		Unlimited Tax