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

Schedule of Investments (unaudited)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Asset-Backed Securities
522 Funding CLO Ltd.^(a)(b)
Series 2019-4A, Class CR, (3-mo. CME Term SOFR + 2.66%), 7.98%, 04/20/30	USD		500	$	500,080
Series 2019-4A, Class DR, (3-mo. CME Term SOFR + 3.91%), 9.23%, 04/20/30			600		591,488
AGL CLO Ltd., Series 2020-3A, Class D, (3-mo. CME Term SOFR + 3.56%), 8.88%, 01/15/33^(a)(b)			250		248,591
AIMCO CLO, Series 2018-BA, Class CRR, (3-mo. CME Term SOFR + 2.4%), 7.72%, 04/16/37^(a)(b)			650		651,601
ALM Ltd., Series 2020-1A, Class D, (3-mo. CME Term SOFR + 6.26%), 11.58%, 10/15/29^(a)(b)			285		285,377
Anchorage Capital CLO Ltd.^(a)(b)
Series 2013-1A, Class A2R, (3-mo. CME Term SOFR + 1.91%), 7.23%, 10/13/30			380		380,344
Series 2013-1A, Class CR, (3-mo. CME Term SOFR + 3.46%), 8.78%, 10/13/30			720		719,952
Apidos CLO XXII, Series 2015-22A, Class CR, (3-mo. CME Term SOFR + 3.21%), 8.53%, 04/20/31^(a)(b)			250		250,801
Apidos CLO XXIV, Series 2016-24A, Class A1AL, (3- mo. CME Term SOFR + 1.21%), 6.53%, 10/20/30^(a)(b)			499		498,773
Apidos CLO XXVI, Series 2017-26A, Class A1AR, (3- mo. CME Term SOFR + 1.16%), 6.46%, 07/18/29^(a)(b)			659		658,867
Apidos CLO XXVII, Series 2017-27A, Class A1R, (3-mo. CME Term SOFR + 1.19%), 6.51%, 07/17/30^(a)(b)			172		171,436
ASSURANT CLO I Ltd., Series 2017-1A, Class CR, (3-mo. CME Term SOFR + 2.41%), 7.73%, 10/20/34^(a)(b)			500		496,982
Bain Capital Credit CLO Ltd.^(a)(b)
Series 2021-3A, Class D, (3-mo. CME Term SOFR + 3.36%), 8.68%, 07/24/34			250		240,334
Series 2021-5A, Class B, (3-mo. CME Term SOFR + 1.91%), 7.23%, 10/23/34			500		496,988
Ballyrock CLO Ltd., Series 2022-21A, Class D, (3-mo. CME Term SOFR + 8.76%), 14.08%, 10/20/35^(a)(b)			500		508,328
Barings CLO Ltd.^(a)(b)
Series 2017-1A, Class D, (3-mo. CME Term SOFR + 3.86%), 9.16%, 07/18/29			250		252,967
Series 2018-2A, Class A2, (3-mo. CME Term SOFR + 1.81%), 7.13%, 04/15/30			1,500		1,503,735
Benefit Street Partners CLO VIII Ltd., Series 2015-8A, Class A2R, (3-mo. CME Term SOFR + 1.71%), 7.03%, 01/20/31^(a)(b)			1,500		1,500,162
Benefit Street Partners CLO XIV Ltd., Series 2018-14A, Class B, (3-mo. CME Term SOFR + 1.71%), 7.03%, 04/20/31^(a)(b)			1,500		1,500,013
Birch Grove CLO Ltd.^(a)(b)
Series 19A, Class DR, (3-mo. CME Term SOFR + 3.61%), 8.94%, 06/15/31			1,000		998,128
Series 2021-3A, Class D1, (3-mo. CME Term SOFR + 3.46%), 8.77%, 01/19/35			250		249,239
BlueMountain CLO XXVIII Ltd., Series 2021-28A, Class D, (3-mo. CME Term SOFR + 3.16%), 8.48%, 04/15/34^(a)(b)			500		488,318
Bryant Park Funding Ltd., Series 2024-22A, Class C, (3-mo. CME Term SOFR + 2.60%), 7.91%, 04/15/37^(a)(b)			1,200		1,200,000


Security		Par (000)		Value

Asset-Backed Securities (continued)
Buttermilk Park CLO Ltd., Series 2018-1A, Class D, (3-mo. CME Term SOFR + 3.36%), 8.68%, 10/15/31^(a)(b)	USD		250	$	246,576
Canyon Capital CLO Ltd.^(a)(b)
Series 2016-1A, Class CR, (3-mo. CME Term SOFR + 2.16%), 7.48%, 07/15/31			250		248,139
Series 2021-2A, Class D, (3-mo. CME Term SOFR + 3.61%), 8.93%, 04/15/34			500		499,485
Carlyle Global Market Strategies CLO Ltd.^(a)(b)
Series 2013-1A, Class A1RR, (3-mo. CME Term SOFR + 1.21%), 6.52%, 08/14/30			125		124,478
Series 2013-1A, Class CR, (3-mo. CME Term SOFR + 3.61%), 8.92%, 08/14/30			1,000		1,000,463
CarVal CLO II Ltd., Series 2019-1A, Class DR, (3-mo. CME Term SOFR + 3.46%), 8.78%, 04/20/32^(a)(b)			500		497,871
CarVal CLO III Ltd., Series 2019-2A, Class E, (3-mo. CME Term SOFR + 6.70%), 12.02%, 07/20/32^(a)(b)			500		494,221
CarVal CLO VC Ltd., Series 2021-2A, Class D, (3-mo. CME Term SOFR + 3.51%), 8.83%, 10/15/34^(a)(b)			250		248,936
CBAM Ltd., Series 2017-1A, Class C, (3-mo. CME Term SOFR + 2.66%), 7.98%, 07/20/30^(a)(b)			350		350,223
Cedar Funding IX CLO Ltd.^(a)(b)
Series 2018-9A, Class A1, (3-mo. CME Term SOFR + 1.24%), 6.56%, 04/20/31			218		218,254
Series 2018-9A, Class D, (3-mo. CME Term SOFR + 2.86%), 8.18%, 04/20/31			250		249,186
Cedar Funding VII CLO Ltd., Series 2018-7A, Class A1, (3-mo. CME Term SOFR + 1.26%), 6.58%, 01/20/31^(a)(b)			427		427,219
Cedar Funding X CLO Ltd., Series 2019-10A, Class BR, (3-mo. CME Term SOFR + 1.86%), 7.18%, 10/20/32^(a)(b)			930		927,199
Cedar Funding XIV CLO Ltd., Series 2021-14A, Class B, (3-mo. CME Term SOFR + 1.86%), 7.18%, 07/15/33^(a)(b)			500		497,715
Cedar Funding XV CLO Ltd., Series 2022-15A, Class B, (3-mo. CME Term SOFR + 1.80%), 7.12%, 04/20/35^(a)(b)			400		398,723
CIFC Funding Ltd.^(a)(b)
Series 2013-1A, Class CR, (3-mo. CME Term SOFR + 3.81%), 9.13%, 07/16/30			500		500,152
Series 2014-2RA, Class B1, (3-mo. CME Term SOFR + 3.06%), 8.38%, 04/24/30			750		750,287
Series 2014-3A, Class BR2, (3-mo. CME Term SOFR + 2.06%), 7.38%, 10/22/31			250		251,193
Series 2015-1A, Class ARR, (3-mo. CME Term SOFR + 1.37%), 6.69%, 01/22/31			854		854,451
Series 2015-3A, Class AR, (3-mo. CME Term SOFR + 1.13%), 6.44%, 04/19/29			146		146,543
Series 2017-1A, Class CRR, (3-mo. CME Term SOFR + 2.45%), 7.73%, 04/21/37			1,000		1,002,327
Series 2017-2A, Class AR, (3-mo. CME Term SOFR + 1.21%), 6.53%, 04/20/30			414		414,012
Series 2017-4A, Class A1R, (3-mo. CME Term SOFR + 1.21%), 6.53%, 10/24/30			381		381,166
Series 2019-1A, Class DR, (3-mo. CME Term SOFR + 3.36%), 8.68%, 04/20/32			500		500,009
Series 2020-1A, Class DR, (3-mo. CME Term SOFR + 3.36%), 8.68%, 07/15/36			500		499,220


S C H E D U L E O F I N V E S T M E N T S		1

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Asset-Backed Securities (continued)
CIFC Funding Ltd.^(a)(b)(continued)
Series 2022-7A, Class C, (3-mo. CME Term SOFR + 3.85%), 9.17%, 10/22/35	USD		500	$	505,439
Series 2022-7A, Class D, (3-mo. CME Term SOFR + 5.35%), 10.67%, 10/22/35			600		608,236
CWHEQ Revolving Home Equity Loan Trust,
Series 2006-I, Class 1A, (1-mo. Term SOFR + 0.25%), 5.58%, 01/15/37^(a)			939		859,908
Dewolf Park CLO Ltd., Series 2017-1A, Class DR, (3- mo. CME Term SOFR + 3.11%), 8.43%, 10/15/30^(a)(b)			280		277,284
Dryden CLO Ltd.^(a)(b)
Series 2017-53A, Class B, (3-mo. CME Term SOFR + 1.66%), 6.98%, 01/15/31			1,320		1,319,824
Series 2018-64A, Class D, (3-mo. CME Term SOFR + 2.91%), 8.21%, 04/18/31			1,250		1,219,738
Series 2020-78A, Class D, (3-mo. CME Term SOFR + 3.26%), 8.58%, 04/17/33			250		247,834
Series 2022-106A, Class C, (3-mo. CME Term SOFR + 3.90%), 9.21%, 10/15/35			500		505,824
Dryden Senior Loan Fund^(a)(b)
Series 2015-37A, Class AR, (3-mo. CME Term SOFR + 1.36%), 6.68%, 01/15/31			228		228,361
Series 2017-50A, Class B, (3-mo. CME Term SOFR + 1.91%), 7.23%, 07/15/30			250		249,655
Dryden XXVIII Senior Loan Fund^(a)(b)
Series 2013-28A, Class A1LR, (3-mo. CME Term SOFR + 1.46%), 6.77%, 08/15/30			213		212,514
Series 2013-28A, Class B1LR, (3-mo. CME Term SOFR + 3.41%), 8.72%, 08/15/30			1,000		998,031
Eaton Vance CLO Ltd., Series 2015-1A, Class A2R, (3-mo. CME Term SOFR + 1.51%), 6.83%, 01/20/30^(a)(b)			1,000		1,000,516
EDvestinU Private Education Loan Issue No. 3 LLC, Series 2021-A, Class B, 3.50%, 11/25/50^(b)			110		87,904
Elmwood CLO 21 Ltd., Series 2022-8A, Class CR, (3-mo. CME Term SOFR + 2.70%), 8.02%, 10/20/36^(a)(b)			500		503,976
Elmwood CLO 26 Ltd, Series 2026-1A, Class C, (3-mo. CME Term SOFR + 2.40%), 7.69%, 04/18/37^(a)(b)			1,300		1,300,000
Elmwood CLO IV Ltd., Series 2020-1A, Class B, (3-mo. CME Term SOFR + 1.96%), 7.28%, 04/15/33^(a)(b)			250		250,403
Elmwood CLO V Ltd., Series 2020-2A, Class CR, (3- mo. CME Term SOFR + 2.26%), 7.58%, 10/20/34^(a)(b)			436		438,195
Elmwood CLO VI Ltd., Series 2020-3A, Class BR, (3- mo. CME Term SOFR + 1.91%), 7.23%, 10/20/34^(a)(b)			250		250,250
Fairstone Financial Issuance Trust I, Series 2020-1A, Class C, 5.16%, 10/20/39^(b)	CAD		170		116,496
Flatiron CLO Ltd., Series 2018-1A, Class A, (3-mo. CME Term SOFR + 1.21%), 6.53%, 04/17/31^(a)(b)	USD		1,150		1,150,824
Galaxy CLO Ltd., Series 2023-31A, Class E, (3-mo. CME Term SOFR + 8.43%), 13.74%, 04/15/36^(a)(b)			350		355,844
Galaxy XX CLO Ltd., Series 2015-20A, Class CR, (3- mo. CME Term SOFR + 2.01%), 7.33%, 04/20/31^(a)(b)			250		250,000
Galaxy XXVII CLO Ltd., Series 2018-27A, Class A, (3- mo. CME Term SOFR + 1.28%), 6.61%, 05/16/31^(a)(b)			1,599		1,599,066
Generate CLO Ltd.^(a)(b)
Series 2A, Class AR, (3-mo. CME Term SOFR + 1.41%), 6.73%, 01/22/31			215		215,514


Security		Par (000)		Value

Asset-Backed Securities (continued)
Generate CLO Ltd.^(a)(b)(continued)
Series 4A, Class DR, (3-mo. CME Term SOFR + 3.41%), 8.73%, 04/20/32	USD		1,500	$	1,496,930
Series 6A, Class DR, (3-mo. CME Term SOFR + 3.76%), 9.08%, 01/22/35			750		741,474
GoldenTree Loan Management U.S. CLO Ltd.^(a)(b)
Series 12A, Class B, (3-mo. CME Term SOFR + 1.95%), 7.27%, 04/20/34			1,000		998,472
Series 2018-3A, Class B1, (3-mo. CME Term SOFR + 1.81%), 7.13%, 04/20/30			250		250,680
Series 2019-5A, Class BR, (3-mo. CME Term SOFR + 1.86%), 7.18%, 04/24/31			500		500,456
GoldenTree Loan Opportunities X Ltd., Series 2015-10A, Class DR, (3-mo. CME Term SOFR + 3.31%), 8.63%, 07/20/31^(a)(b)			250		250,812
Golub Capital Partners CLO Ltd., Series 2021-55A, Class E, (3-mo. CME Term SOFR + 6.82%), 12.14%, 07/20/34^(a)(b)			250		248,886
Gracie Point International Funding LLC, Series 2023-1A, Class D, (3-mo. SOFR + 4.50%), 9.86%, 09/01/26^(a)(b)			162		164,762
Grippen Park CLO Ltd., Series 2017-1A, Class D, (3- mo. CME Term SOFR + 3.56%), 8.88%, 01/20/30^(a)(b)			250		249,981
Highbridge Loan Management Ltd., Series 3A-2014, Class CR, (3-mo. CME Term SOFR + 3.86%), 9.16%, 07/18/29^(a)(b)			1,000		1,000,483
Litigation Fee Residual, Series 2020-1, Class A, 4.00%, 10/30/27^(c)			347		342,183
Long Beach Mortgage Loan Trust, Series 2006-8, Class 2A4, (1-mo. Term SOFR + 0.59%), 5.92%, 09/25/36^(a)			5,992		1,623,031
Madison Park Funding LIV Ltd., Series 2022-54A, Class E1, (3-mo. CME Term SOFR + 8.95%), 14.27%, 10/21/34^(a)(b)			263		267,584
Madison Park Funding XLVIII Ltd., Series 2021-48A, Class E, (3-mo. CME Term SOFR + 6.51%), 11.82%, 04/19/33^(a)(b)			500		499,317
Madison Park Funding XVII Ltd., Series 2015-17A, Class DR, (3-mo. CME Term SOFR + 3.86%), 9.18%, 07/21/30^(a)(b)			1,000		1,000,486
Madison Park Funding XXIII Ltd.^(a)(b)
Series 2017-23A, Class AR, (3-mo. CME Term SOFR + 1.23%), 6.55%, 07/27/31			963		962,724
Series 2017-23A, Class CR, (3-mo. CME Term SOFR + 2.26%), 7.58%, 07/27/31			600		600,368
Madison Park Funding XXV Ltd.^(a)(b)
Series 2017-25A, Class A1R, (3-mo. CME Term SOFR + 1.23%), 6.56%, 04/25/29			1,378		1,377,711
Series 2017-25A, Class A2R, (3-mo. CME Term SOFR + 1.91%), 7.24%, 04/25/29			250		250,021
Madison Park Funding XXXI Ltd., Series 2018-31A, Class D, (3-mo. CME Term SOFR + 3.26%), 8.58%, 01/23/31^(a)(b)			625		626,052
Madison Park Funding XXXIV Ltd., Series 2019-34A, Class DR, (3-mo. CME Term SOFR + 3.61%), 8.94%, 04/25/32^(a)(b)			250		250,500
Madison Park Funding XXXVII Ltd., Series 2019-37A, Class BR, (3-mo. CME Term SOFR + 1.91%), 7.23%, 07/15/33^(a)(b)			900		900,398
Madison Park Funding XXXVIII Ltd., Series 2021-38A, Class C, (3-mo. CME Term SOFR + 2.16%), 7.48%, 07/17/34^(a)(b)			250		248,517


2

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Asset-Backed Securities (continued)
Marble Point CLO XVII Ltd., Series 2020-1A, Class D, (3-mo. CME Term SOFR + 4.01%), 9.33%, 04/20/33^(a)(b)	USD		250	$	245,251
Marble Point CLO XXIII Ltd., Series 2021-4A, Class D1, (3-mo. CME Term SOFR + 3.91%), 9.23%, 01/22/35^(a)(b)			250		249,239
Mariner Finance Issuance Trust, Series 2022-AA, Class A, 6.45%, 10/20/37^(b)			515		516,271
Navient Private Education Refi Loan Trust^(b)
Series 2019-D, Class A2A, 3.01%, 12/15/59			487		460,980
Series 2019-GA, Class A, 2.40%, 10/15/68			173		163,048
Series 2021-CA, Class A, 1.06%, 10/15/69			770		676,472
Series 2021-DA, Class C, 3.48%, 04/15/60			770		680,330
Series 2021-DA, Class D, 4.00%, 04/15/60			440		398,867
Series 2021-EA, Class A, 0.97%, 12/16/69			908		785,077
Series 2023-A, Class A, 5.51%, 10/15/71			160		161,073
Nelnet Student Loan Trust^(b)
Series 2021-A, Class D, 4.93%, 04/20/62			460		383,290
Series 2021-BA, Class B, 2.68%, 04/20/62			1,983		1,640,384
Series 2021-CA, Class AFL, (1-mo. Term SOFR + 0.85%), 6.18%, 04/20/62^(a)			359		356,384
Neuberger Berman CLO XXII Ltd., Series 2016-22A, Class BR, (3-mo. CME Term SOFR + 1.91%), 7.23%, 10/17/30^(a)(b)			250		250,094
Neuberger Berman Loan Advisers CLO Ltd.^(a)(b)
Series 2017-25A, Class AR, (3-mo. CME Term SOFR + 1.19%), 6.49%, 10/18/29			1,171		1,171,114
Series 2019-35R, Class CR, (3-mo. CME Term SOFR + 2.30%), 7.64%, 01/19/33			1,500		1,514,193
Series 2020-37A, Class CR, (3-mo. CME Term SOFR + 2.06%), 7.38%, 07/20/31			1,162		1,157,253
Neuberger Berman Loan Advisers NBLA CLO Ltd., Series 2022-52A, Class D, (3-mo. CME Term SOFR + 5.75%), 11.07%, 10/24/35^(a)(b)			568		577,790
OCP CLO Ltd.^(a)(b)
Series 16-11R, Class B1R2, (3-mo. CME Term SOFR + 1.95%), 7.27%, 04/26/36			500		499,853
Series 2015-9A, Class BR2, (3-mo. CME Term SOFR + 1.75%), 7.07%, 01/15/33			250		249,704
Series 2017-13A, Class A1AR, (3-mo. CME Term SOFR + 1.22%), 6.54%, 07/15/30			942		942,848
Series 2017-14A, Class A2, (3-mo. CME Term SOFR + 1.76%), 7.08%, 11/20/30			1,620		1,619,184
Octagon 54 Ltd., Series 2021-1A, Class D, (3-mo. CME Term SOFR + 3.31%), 8.63%, 07/15/34^(a)(b)			250		247,879
Octagon Investment Partners XV Ltd., Series 2013-1A, Class A1RR, (3-mo. CME Term SOFR + 1.23%), 6.54%, 07/19/30^(a)(b)			2,384		2,382,207
Octagon Investment Partners XVII Ltd., Series 2013-1A, Class BR2, (3-mo. CME Term SOFR + 1.66%), 6.99%, 01/25/31^(a)(b)			500		500,067
Octagon Investment Partners XXI Ltd., Series 2014-1A, Class AAR3, (3-mo. CME Term SOFR + 1.26%), 6.57%, 02/14/31^(a)(b)			250		250,000
Octagon Investment Partners XXII Ltd., Series 2014-1A, Class DRR, (3-mo. CME Term SOFR + 3.01%), 8.33%, 01/22/30^(a)(b)			500		492,732
OZLM VIII Ltd., Series 2014-8A, Class CRR, (3-mo. CME Term SOFR + 3.41%), 8.73%, 10/17/29^(a)(b)			875		873,451


Security		Par (000)		Value

Asset-Backed Securities (continued)
OZLM XXI Ltd., Series 2017-21A, Class C, (3-mo. CME Term SOFR + 2.93%), 8.25%, 01/20/31^(a)(b)	USD		1,000	$	983,027
Palmer Square CLO Ltd.^(a)(b)
Series 2013-2A, Class A2R3, (3-mo. CME Term SOFR + 1.76%), 7.08%, 10/17/31			250		249,727
Series 2015-2A, Class CR2, (3-mo. CME Term SOFR + 3.01%), 8.33%, 07/20/30			250		250,058
Series 2020-3ARR, Class A1R2, (3-mo. CME Term SOFR + 1.65%), 6.96%, 11/15/36			250		250,880
Series 2020-3ARR, Class A2R2, (3-mo. CME Term SOFR + 2.30%), 7.61%, 11/15/36			250		250,500
Series 2022-4A, Class C, (3-mo. CME Term SOFR + 4.00%), 9.32%, 10/20/35			1,000		1,012,373
Palmer Square Loan Funding Ltd.^(a)(b)
Series 2021-1A, Class A1, (3-mo. CME Term SOFR + 1.16%), 6.48%, 04/20/29			72		72,383
Series 2021-2A, Class A1, (3-mo. CME Term SOFR + 1.06%), 6.38%, 05/20/29			82		81,503
Series 2021-3A, Class A1, (3-mo. CME Term SOFR + 1.06%), 6.38%, 07/20/29			355		354,611
Park Avenue Institutional Advisers CLO Ltd., Series 2017-1A, Class DR, (3-mo. CME Term SOFR + 7.07%), 12.38%, 02/14/34^(a)(b)			1,300		1,213,169
Prodigy Finance DAC, Series 2021-1A, Class C, (1-mo. Term SOFR + 3.86%), 9.19%, 07/25/51^(a)(b)			77		77,913
Rad CLO Ltd., Series 2019-3A, Class DR, (3-mo. CME Term SOFR + 3.01%), 8.33%, 04/15/32^(a)(b)			400		392,076
Regatta XI Funding Ltd., Series 2018-1A, Class D, (3- mo. CME Term SOFR + 3.11%), 8.43%, 07/17/31^(a)(b)			370		369,604
Regatta XVIII Funding Ltd., Series 2021-1A, Class B, (3-mo. CME Term SOFR + 1.71%), 7.03%, 01/15/34^(a)(b)			850		849,235
Regional Management Issuance Trust, Series 2022-2B, Class A, 7.10%, 11/17/32^(b)			200		201,992
Republic Finance Issuance Trust, Series 2020-A, Class C, 4.05%, 11/20/30^(b)			240		230,142
Romark CLO Ltd., Series 2017-1A, Class B, (3-mo. CME Term SOFR + 2.41%), 7.73%, 10/23/30^(a)(b)			500		499,603
Shackleton CLO Ltd., Series 2015-7RA, Class C, (3-mo. CME Term SOFR + 2.61%), 7.93%, 07/15/31^(a)(b)			250		250,009
Signal Peak CLO Ltd., Series 2017-4A, Class XR, (3- mo. CME Term SOFR + 1.21%), 6.54%, 10/26/34^(a)(b)			1,000		1,000,178
SMB Private Education Loan Trust^(b)
Series 2019-A, Class A2A, 3.44%, 07/15/36			1,124		1,083,584
Series 2019-B, Class A2A, 2.84%, 06/15/37			229		218,391
Series 2021-A, Class A2B, 1.59%, 01/15/53			341		304,731
Series 2021-C, Class C, 3.00%, 01/15/53			133		111,881
Series 2021-C, Class D, 3.93%, 01/15/53			112		102,038
Series 2021-D, Class A1A, 1.34%, 03/17/53			1,047		941,317
Series 2022-C, Class A1A, 4.48%, 05/16/50			329		320,150
Series 2023-B, Class A1B, (30-day Avg SOFR + 1.80%), 7.12%, 10/16/56^(a)			216		219,843
Series 2023-C, Class A1A, 5.67%, 11/15/52			1,535		1,548,078
Sterling COOFS Trust^(b)(c)
Series 2004-1, Class A, 2.36%, 04/15/29			700		7,002
Series 2004-2, Class Note, 2.08%, 03/30/30			391		3,909


S C H E D U L E O F I N V E S T M E N T S		3

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Asset-Backed Securities (continued)
Structured Asset Securities Corp. Pass-Through Certificates, Series 2002-AL1, Class A2, 3.45%, 02/25/32	USD		27	$	22,987
Symphony CLO XXXII Ltd., Series 2022-32A, Class B, (3-mo. CME Term SOFR + 1.85%), 7.17%, 04/23/35^(a)(b)			600		599,212
TCI-Symphony CLO Ltd., Series 2017-1A, Class AR, (3-mo. CME Term SOFR + 1.19%), 6.51%, 07/15/30^(a)(b)			446		445,677
TCW CLO Ltd., Series 2020-1A, Class DRR, (3-mo. CME Term SOFR + 3.66%), 8.98%, 04/20/34^(a)(b)			250		241,331
TICP CLO IX Ltd., Series 2017-9A, Class D, (3-mo. CME Term SOFR + 3.16%), 8.48%, 01/20/31^(a)(b)			500		503,070
TICP CLO XV Ltd., Series 2020-15A, Class D, (3-mo. CME Term SOFR + 3.41%), 8.73%, 04/20/33^(a)(b)			250		248,883
Trestles CLO Ltd.^(a)(b)
Series 2017-1A, Class B1R, (3-mo. CME Term SOFR + 2.01%), 7.34%, 04/25/32			1,750		1,734,814
Series 2017-1A, Class CR, (3-mo. CME Term SOFR + 3.16%), 8.49%, 04/25/32			250		245,365
Trimaran CAVU Ltd.^(a)(b)
Series 2019-2A, Class C, (3-mo. CME Term SOFR + 4.98%), 10.28%, 11/26/32			500		500,223
Series 2021-2A, Class D1, (3-mo. CME Term SOFR + 3.51%), 8.84%, 10/25/34			500		494,156
Series 2022-1, Class E, (3-mo. CME Term SOFR + 9.08%), 14.40%, 10/22/35			500		510,288
Series 2022-2A, Class D, (3-mo. CME Term SOFR + 6.12%), 11.44%, 01/20/36			400		412,915
Series 2023-1, Class E, (3-mo. CME Term SOFR + 8.94%), 14.26%, 07/20/36			500		510,823
Unique Pub Finance Co. PLC, Series 02, Class N, 6.46%, 03/30/32^(d)	GBP		6		7,897
Voya CLO Ltd.^(a)(b)
Series 2014-2A, Class A1RR, (3-mo. CME Term SOFR + 1.28%), 6.60%, 04/17/30	USD		132		131,969
Series 2017-2A, Class A2AR, (3-mo. CME Term SOFR + 1.91%), 7.23%, 06/07/30			250		250,322
Series 2017-4A, Class A1, (3-mo. CME Term SOFR + 1.39%), 6.71%, 10/15/30			173		173,126
Series 2018-2A, Class A2, (3-mo. CME Term SOFR + 1.51%), 6.83%, 07/15/31			1,000		1,002,427
Series 2022-4A, Class C, (3-mo. CME Term SOFR + 4.05%), 9.37%, 10/20/33			1,000		998,937
Whetstone Park CLO Ltd., Series 2021-1A, Class B1, (3-mo. CME Term SOFR + 1.86%), 7.18%, 01/20/35^(a)(b)			725		723,896
Whitebox CLO I Ltd., Series 2019-1A, Class CR, (3-mo. CME Term SOFR + 3.31%), 8.63%, 07/24/32^(a)(b)			500		492,063
Whitebox CLO II Ltd., Series 2020-2A, Class DR, (3-mo. CME Term SOFR + 3.61%), 8.93%, 10/24/34^(a)(b)			500		496,431


Security		Par (000)		Value

Asset-Backed Securities (continued)
Whitebox CLO III Ltd.^(a)(b)
Series 2021-3A, Class D, (3-mo. CME Term SOFR + 3.61%), 8.93%, 10/15/34	USD		250	$	248,119
Series 2021-3A, Class E, (3-mo. CME Term SOFR + 7.11%), 12.43%, 10/15/34			250		250,998


Total Asset-Backed Securities — 17.1% (Cost: $100,537,538)					99,864,887


Corporate Bonds

Aerospace & Defense — 2.7%
AAR Escrow Issuer LLC, 6.75%, 03/15/29^(b)			170		171,308
Boeing Co.
2.95%, 02/01/30			800		690,926
3.60%, 05/01/34			550		455,749
Bombardier, Inc.^(b)
7.13%, 06/15/26			30		30,432
7.88%, 04/15/27^(e)			101		101,071
6.00%, 02/15/28^(f)			261		256,739
7.50%, 02/01/29			10		10,297
8.75%, 11/15/30^(f)			294		313,926
7.25%, 07/01/31^(g)			162		162,330
7.45%, 05/01/34			100		110,908
Castlelake Aviation Finance DAC, 5.00%, 04/15/27^(b)			23		22,152
Embraer Netherlands Finance BV, 7.00%, 07/28/30^(b)			263		274,427
F-Brasile SpA/F-Brasile U.S. LLC, Series XR, 7.38%, 08/15/26^(b)(f)			200		198,984
General Electric Co., 6.15%, 08/07/37			2,150		2,295,418
Global Aircraft Leasing Co. Ltd., (6.50% Cash or 7.25% PIK), 6.50%, 09/15/24^(b)(h)			233		219,816
L3Harris Technologies, Inc.
2.90%, 12/15/29			1,200		1,068,080
1.80%, 01/15/31			300		243,594
Lockheed Martin Corp., 3.80%, 03/01/45			800		655,006
Northrop Grumman Corp.
4.70%, 03/15/33			400		390,491
3.85%, 04/15/45			850		684,019
RTX Corp.
2.38%, 03/15/32			1,000		823,820
5.15%, 02/27/33			900		901,712
4.50%, 06/01/42			300		267,673
Spirit AeroSystems, Inc.^(b)
9.38%, 11/30/29^(f)			296		322,873
9.75%, 11/15/30			279		312,080
TransDigm, Inc.^(b)
6.75%, 08/15/28			642		650,473
6.38%, 03/01/29			1,225		1,228,813
7.13%, 12/01/31			466		480,240
6.63%, 03/01/32			1,599		1,615,455
Triumph Group, Inc., 9.00%, 03/15/28^(b)			536		565,068


					15,523,880

Air Freight & Logistics — 0.2%
FedEx Corp., 4.75%, 11/15/45^(f)			1,250		1,107,378
Rand Parent LLC, 8.50%, 02/15/30^(b)			15		14,854


					1,122,232

Automobile Components — 0.5%
Aptiv PLC, 4.40%, 10/01/46			465		367,398


4

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Automobile Components (continued)
Clarios Global LP/Clarios U.S. Finance Co.
4.38%, 05/15/26^(d)	EUR		200	$	214,115
8.50%, 05/15/27^(b)(f)	USD		1,287		1,288,947
6.75%, 05/15/28^(b)			366		370,988
Dana Financing Luxembourg SARL, 8.50%, 07/15/31^(d)	EUR		100		118,737
Forvia SE, 3.75%, 06/15/28^(d)			100		104,648
Goodyear Tire & Rubber Co., 5.63%, 04/30/33	USD		81		73,976
Phinia, Inc., 6.75%, 04/15/29^(b)(g)			80		80,771
Schaeffler AG, 4.75%, 08/14/29^(d)	EUR		100		109,541
Tenneco, Inc., 8.00%, 11/17/28^(b)	USD		39		35,585
ZF Finance GmbH, 3.75%, 09/21/28^(d)	EUR		100		104,109


					2,868,815

Automobiles — 0.9%
Asbury Automotive Group, Inc., 4.50%, 03/01/28	USD		10		9,521
Aston Martin Capital Holdings Ltd., 10.38%, 03/31/29^(d)	GBP		100		128,397
Carvana Co.^(b)(h)
(12.00% PIK), 12.00%, 12/01/28	USD		55		53,776
(13.00% PIK), 13.00%, 06/01/30			26		25,356
(14.00% PIK), 14.00%, 06/01/31			128		129,159
Dealer Tire LLC/DT Issuer LLC, 8.00%, 02/01/28^(b)			111		110,492
Ford Motor Co.
6.10%, 08/19/32^(f)			168		170,237
4.75%, 01/15/43			2,000		1,660,757
General Motors Co., 6.25%, 10/02/43			2,506		2,563,500
LCM Investments Holdings II LLC^(b)
4.88%, 05/01/29			55		50,552
8.25%, 08/01/31			244		255,262
MajorDrive Holdings IV LLC, 6.38%, 06/01/29^(b)			159		149,123
RCI Banque SA, (5-year EUR Swap + 2.85%), 2.63%, 02/18/30^(a)(d)	EUR		100		105,299


					5,411,431

Banks — 5.1%
Alpha Bank SA, (1-year EUR Swap + 2.43%), 5.00%, 05/12/30^(a)(d)			100		108,266
Banca Monte dei Paschi di Siena SpA, (3-mo. EURIBOR + 2.05%), 4.75%, 03/15/29^(a)(d)			100		108,694
Banco BPM SpA, (3-mo. EURIBOR + 2.80%), 6.00%, 06/14/28^(a)(d)			150		170,515
Bangkok Bank PCL/Hong Kong, (5-year CMT + 4.73%), 5.00%^(a)(d)(i)	USD		500		486,250
Bank Negara Indonesia Persero Tbk PT, 3.75%, 03/30/26^(d)			252		240,739
Bank of America Corp., (3-mo. CME Term SOFR + 1.57%), 4.27%, 07/23/29^(a)(f)			4,000		3,855,662
Barclays Bank PLC, 1.00%, 02/16/29^(j)			229		245,571
Barclays PLC, (1-year CMT + 1.05%), 2.28%, 11/24/27^(a)(f)			3,000		2,758,905
Citigroup, Inc.^(a)
(1-day SOFR + 2.34%), 6.27%, 11/17/33			1,567		1,655,014
(1-day SOFR + 2.66%), 6.17%, 05/25/34			92		93,425
Credit Suisse AG/New York, 5.00%, 07/09/27			900		891,798
Deutsche Bank AG/New York, (1-day SOFR + 3.18%), 6.72%, 01/18/29^(a)(f)			850		879,038
Freedom Mortgage Corp.^(b)
12.00%, 10/01/28			64		69,760
12.25%, 10/01/30			65		71,486
Goldman Sachs Group, Inc., (3-mo. CME Term SOFR + 1.56%), 4.22%, 05/01/29^(a)(f)			4,000		3,850,133
HSBC Holdings PLC, 6.10%, 01/14/42			610		660,167
JPMorgan Chase & Co.^(a)
(1-day SOFR + 1.18%), 2.55%, 11/08/32			1,000		832,107


Security		Par (000)		Value

Banks (continued)
JPMorgan Chase & Co.^(a)(continued)
(1-day SOFR + 1.62%), 5.34%, 01/23/35	USD		540	$	542,110
(1-day SOFR + 2.08%), 4.91%, 07/25/33			1,381		1,352,199
(3-mo. CME Term SOFR + 1.42%), 3.70%, 05/06/30			1,000		936,899
(3-mo. CME Term SOFR + 2.46%), 3.11%, 04/22/41			800		609,569
Morgan Stanley^(a)
(1-day SOFR + 1.73%), 5.12%, 02/01/29^(f)			3,000		2,992,685
(1-day SOFR + 1.73%), 5.47%, 01/18/35			600		605,363
National Bank of Greece SA, (5-year EURIBOR ICE Swap + 3.15%), 5.88%, 06/28/35^(a)(d)	EUR		100		108,721
NatWest Group PLC, (1-year CMT + 2.27%), 5.52%, 09/30/28^(a)	USD		1,000		1,000,668
Standard Chartered PLC, (5-year USD ICE Swap + 1.97%), 4.87%, 03/15/33^(a)(b)			500		475,370
State Street Corp., Series I, (5-year CMT + 2.61%), 6.70%^(a)(i)			171		173,518
Wells Fargo & Co.^(a)
(1-day SOFR + 1.78%), 5.50%, 01/23/35^(f)			1,290		1,293,037
(1-day SOFR + 2.02%), 5.39%, 04/24/34			1,124		1,117,001
(1-day SOFR + 2.53%), 3.07%, 04/30/41^(f)			2,250		1,683,481


					29,868,151

Beverages — 0.8%
Anheuser-Busch Cos. LLC/Anheuser-Busch InBev Worldwide, Inc., 4.90%, 02/01/46^(f)			4,600		4,371,427
Keurig Dr. Pepper, Inc., Series 31, 2.25%, 03/15/31			400		333,313


					4,704,740

Biotechnology — 0.6%
Amgen, Inc.
5.25%, 03/02/30			800		812,158
4.20%, 03/01/33			1,000		934,682
5.25%, 03/02/33^(f)			600		605,047
4.40%, 05/01/45			650		564,717
Baxalta, Inc., 5.25%, 06/23/45			500		488,044
Cidron Aida Finco SARL, 5.00%, 04/01/28^(d)	EUR		100		104,514


					3,509,162

Broadline Retail — 0.3%
Amazon.com, Inc., 4.05%, 08/22/47^(f)	USD		1,500		1,306,987
NMG Holding Co., Inc./Neiman Marcus Group LLC, 7.13%, 04/01/26^(b)			44		43,088
Rakuten Group, Inc., 11.25%, 02/15/27^(b)			200		211,897


					1,561,972

Building Products — 1.4%
Advanced Drainage Systems, Inc.^(b)
5.00%, 09/30/27			106		102,831
6.38%, 06/15/30			247		248,278
Builders FirstSource, Inc., 6.38%, 03/01/34^(b)			115		115,475
Camelot Return Merger Sub, Inc., 8.75%, 08/01/28^(b)(f)			183		187,987
Foundation Building Materials, Inc., 6.00%, 03/01/29^(b)			47		43,220
Home Depot, Inc., 5.88%, 12/16/36			1,660		1,782,745
Lowe’s Cos., Inc.
1.70%, 10/15/30			1,600		1,307,353
5.00%, 04/15/33^(f)			1,000		996,066
4.38%, 09/15/45			1,000		857,633
SRS Distribution, Inc.^(b)
4.63%, 07/01/28			299		301,186
6.13%, 07/01/29^(f)			393		400,762
6.00%, 12/01/29^(f)			546		557,743


S C H E D U L E O F I N V E S T M E N T S		5

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Building Products (continued)
White Cap Buyer LLC, 6.88%, 10/15/28^(b)	USD		938	$	920,036
White Cap Parent LLC, (8.25% Cash or 9.00% PIK), 8.25%, 03/15/26^(b)(f)(h)			218		217,788


					8,039,103

Capital Markets — 0.9%
Apollo Debt Solutions BDC, 6.90%, 04/13/29^(b)			135		136,281
Ares Capital Corp., 5.88%, 03/01/29			90		89,731
Aretec Group, Inc., 10.00%, 08/15/30^(b)			65		70,998
Blackstone Private Credit Fund
7.05%, 09/29/25			56		56,835
3.25%, 03/15/27			53		48,915
6.25%, 01/25/31^(b)			103		103,431
Blue Owl Capital Corp.
3.75%, 07/22/25			129		125,139
3.40%, 07/15/26			12		11,305
Blue Owl Capital Corp. II, 8.45%, 11/15/26^(b)			94		96,818
Blue Owl Credit Income Corp.
3.13%, 09/23/26			5		4,588
7.75%, 09/16/27			215		220,255
6.65%, 03/15/31^(b)			210		204,927
Compass Group Diversified Holdings LLC, 5.25%, 04/15/29^(b)(f)			129		122,567
FMR LLC, 4.95%, 02/01/33^(b)			2,300		2,210,021
HPS Corporate Lending Fund, 6.75%, 01/30/29^(b)			140		139,744
Icahn Enterprises LP/Icahn Enterprises Finance Corp.
6.25%, 05/15/26			115		111,012
5.25%, 05/15/27			431		389,512
9.75%, 01/15/29^(b)			188		196,235
4.38%, 02/01/29			142		121,068
JPMorgan Chase Financial Co. LLC, 0.50%, 06/15/27^(j)			191		211,055
Raymond James Financial, Inc., 4.95%, 07/15/46			400		367,961
SURA Asset Management SA, 4.88%, 04/17/24^(d)			178		177,479


					5,215,877

Chemicals — 0.8%
Axalta Coating Systems Dutch Holding B BV, 7.25%, 02/15/31^(b)			173		179,956
Axalta Coating Systems LLC, 3.38%, 02/15/29^(b)(f)			198		177,184
Braskem Idesa SAPI, 6.99%, 02/20/32^(b)			200		154,320
Chemours Co.
5.38%, 05/15/27			122		116,957
5.75%, 11/15/28^(b)			118		108,808
4.63%, 11/15/29^(b)			157		135,345
Element Solutions, Inc., 3.88%, 09/01/28^(b)			470		431,154
HB Fuller Co., 4.25%, 10/15/28			74		68,570
Herens Holdco SARL, 4.75%, 05/15/28^(b)			200		174,542
Illuminate Buyer LLC/Illuminate Holdings IV, Inc., 9.00%, 07/01/28^(b)(f)			220		217,030
INEOS Quattro Finance 2 PLC, Series APR, 8.50%, 03/15/29^(d)(g)	EUR		100		112,470
Kobe U.S. Midco 2, Inc., (9.25% Cash or 10.00% PIK), 9.25%, 11/01/26^(b)(h)	USD		185		157,542
LSF11 A5 HoldCo LLC, 6.63%, 10/15/29^(b)			90		81,040
Olympus Water U.S. Holding Corp.
9.63%, 11/15/28^(d)	EUR		100		115,550
9.75%, 11/15/28^(b)	USD		563		599,717
Sasol Financing USA LLC, 6.50%, 09/27/28			200		190,500
Scotts Miracle-Gro Co.
4.50%, 10/15/29			84		76,019
4.38%, 02/01/32			46		39,658
Sherwin-Williams Co., 4.50%, 06/01/47			350		305,844


Security		Par (000)		Value

Chemicals (continued)
SK Invictus Intermediate II SARL, 5.00%, 10/30/29^(b)	USD		311	$	277,214
WR Grace Holdings LLC^(b)
4.88%, 06/15/27			105		99,790
5.63%, 08/15/29^(f)			677		605,840
7.38%, 03/01/31^(f)			152		153,910


					4,578,960

Commercial Services & Supplies — 1.2%
ADT Security Corp.^(b)
4.13%, 08/01/29			19		17,406
4.88%, 07/15/32			39		35,301
Allied Universal Holdco LLC, 7.88%, 02/15/31^(b)			742		751,495
Allied Universal Holdco LLC/Allied Universal Finance Corp.^(b)(f)
6.63%, 07/15/26			171		170,888
9.75%, 07/15/27			249		249,748
6.00%, 06/01/29			898		772,661
Allied Universal Holdco LLC/Allied Universal Finance Corp./Atlas Luxco 4 SARL
4.63%, 06/01/28^(b)			729		664,020
4.88%, 06/01/28^(d)	GBP		100		113,625
APX Group, Inc., 5.75%, 07/15/29^(b)	USD		181		174,032
Aramark Services, Inc., 5.00%, 02/01/28^(b)(f)			325		313,681
BCP V Modular Services Finance II PLC, 4.75%, 11/30/28^(d)	EUR		100		100,873
Champions Financing, Inc., 8.75%, 02/15/29^(b)	USD		217		227,339
Fortress Transportation and Infrastructure Investors LLC^(b)
9.75%, 08/01/27			219		226,761
7.88%, 12/01/30			481		505,104
Garda World Security Corp.^(b)
4.63%, 02/15/27			88		84,321
9.50%, 11/01/27			96		96,231
7.75%, 02/15/28			370		379,431
6.00%, 06/01/29			57		51,018
Herc Holdings, Inc., 5.50%, 07/15/27^(b)			85		83,486
Mavis Tire Express Services Topco Corp., 6.50%, 05/15/29^(b)			82		77,990
Neptune Bidco U.S., Inc., 9.29%, 04/15/29^(b)			120		113,469
NESCO Holdings II, Inc., 5.50%, 04/15/29^(b)			146		138,131
Paprec Holding SA, 7.25%, 11/17/29^(d)	EUR		100		114,908
Prime Security Services Borrower LLC/Prime Finance, Inc.^(b)
5.75%, 04/15/26	USD		50		49,854
6.25%, 01/15/28^(f)			216		211,589
Sotheby’s/Bidfair Holdings, Inc., 5.88%, 06/01/29^(b)(f)			400		336,205
United Rentals North America, Inc.^(b)
6.00%, 12/15/29			318		320,107
6.13%, 03/15/34			102		102,127
Verisure Holding AB, 9.25%, 10/15/27^(d)	EUR		100		115,302
Williams Scotsman, Inc., 7.38%, 10/01/31^(b)	USD		199		206,831


					6,803,934

Communications Equipment^(b)— 0.1%
CommScope Technologies LLC, 6.00%, 06/15/25^(f)			218		189,595
CommScope, Inc., 4.75%, 09/01/29			161		115,920
Viasat, Inc.
5.63%, 09/15/25			235		229,080
5.63%, 04/15/27			97		91,854
7.50%, 05/30/31			33		23,911


					650,360


6

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Construction & Engineering — 0.2%
Arcosa, Inc., 4.38%, 04/15/29^(b)	USD		117	$	107,819
Brand Industrial Services, Inc., 10.38%, 08/01/30^(b)			1,004		1,086,994
Kier Group PLC, 9.00%, 02/15/29^(d)	GBP		100		128,698
Pike Corp., 8.63%, 01/31/31^(b)	USD		57		60,572


					1,384,083

Construction Materials — 0.7%
BCPE Empire Holdings, Inc., 7.63%, 05/01/27^(b)			249		243,146
EMRLD Borrower LP/Emerald Co-Issuer, Inc.
6.38%, 12/15/30^(b)	EUR		110		124,583
6.38%, 12/15/30^(d)			100		113,258
6.63%, 12/15/30^(b)	USD		1,458		1,471,987
HT Troplast GmbH, 9.38%, 07/15/28^(d)	EUR		100		112,858
Jeld-Wen, Inc., 4.63%, 12/15/25^(b)	USD		155		151,247
New Enterprise Stone & Lime Co., Inc.^(b)
5.25%, 07/15/28			55		52,689
9.75%, 07/15/28			26		26,600
Resideo Funding, Inc., 4.00%, 09/01/29^(b)			42		37,553
Smyrna Ready Mix Concrete LLC^(b)
6.00%, 11/01/28			262		256,068
8.88%, 11/15/31			479		511,999
Standard Industries, Inc.^(b)
5.00%, 02/15/27			157		152,294
4.75%, 01/15/28			62		59,172
4.38%, 07/15/30			170		152,753
3.38%, 01/15/31			44		36,892
Summit Materials LLC/Summit Materials Finance Corp., 7.25%, 01/15/31^(b)			295		306,619


					3,809,718

Consumer Discretionary — 0.0%
Techem Verwaltungsgesellschaft 674 mbH, 6.00%, 07/30/26^(d)	EUR		88		94,469


Consumer Finance — 1.0%
Block, Inc.
2.75%, 06/01/26	USD		446		419,456
3.50%, 06/01/31			476		414,284
Bread Financial Holdings, Inc., 9.75%, 03/15/29^(b)			88		91,580
Capital One Financial Corp., (1-day SOFR + 2.60%), 5.82%, 02/01/34^(a)(f)			440		439,330
Ford Motor Credit Co. LLC, 7.20%, 06/10/30^(f)			200		212,274
Global Payments, Inc., 1.50%, 03/01/31^(b)(j)			346		365,722
GTCR W-2 Merger Sub LLC, 7.50%, 01/15/31^(b)(f)			400		418,725
Moody’s Corp., 2.75%, 08/19/41			350		248,750
Navient Corp.
5.50%, 03/15/29			30		27,933
9.38%, 07/25/30			148		158,327
OneMain Finance Corp.
3.50%, 01/15/27			116		107,683
6.63%, 01/15/28			78		78,251
9.00%, 01/15/29^(f)			200		212,222
5.38%, 11/15/29			42		39,489
7.88%, 03/15/30			256		264,082
4.00%, 09/15/30			130		111,260
Sabre GLBL, Inc.^(b)
8.63%, 06/01/27^(f)			331		290,460
11.25%, 12/15/27			17		15,955
Shift4 Payments LLC/Shift4 Payments Finance Sub, Inc., 4.63%, 11/01/26^(b)			395		381,905


Security		Par (000)		Value

Consumer Finance (continued)
Shift4 Payments, Inc., 0.00%, 12/15/25^(j)(k)	USD		112	$	119,840
Verscend Escrow Corp., 9.75%, 08/15/26^(b)(f)			1,216		1,219,416


					5,636,944

Consumer Staples Distribution & Retail — 0.4%
Albertsons Cos., Inc./Safeway, Inc./New Albertsons LP/Albertsons LLC^(b)
3.25%, 03/15/26			34		32,423
5.88%, 02/15/28			74		73,263
6.50%, 02/15/28			109		110,157
3.50%, 03/15/29			198		177,722
4.88%, 02/15/30^(f)			79		75,163
Bellis Acquisition Co. PLC, 3.25%, 02/16/26^(d)	GBP		100		119,004
Kraft Heinz Foods Co.
5.00%, 06/04/42	USD		500		469,175
4.38%, 06/01/46			200		168,909
Lamb Weston Holdings, Inc.^(b)
4.13%, 01/31/30			90		82,062
4.38%, 01/31/32			94		84,291
Market Bidco Finco PLC, 5.50%, 11/04/27^(d)	GBP		100		114,919
Performance Food Group, Inc., 4.25%, 08/01/29^(b)	USD		34		31,158
Post Holdings, Inc.^(b)
4.63%, 04/15/30			67		61,506
4.50%, 09/15/31			9		8,095
6.25%, 02/15/32			169		170,232
U.S. Foods, Inc.^(b)
6.88%, 09/15/28			93		95,200
4.75%, 02/15/29			44		41,767
4.63%, 06/01/30			27		25,048
7.25%, 01/15/32^(f)			148		154,028
United Natural Foods, Inc., 6.75%, 10/15/28^(b)			24		19,934
Walgreens Boots Alliance, Inc.
3.20%, 04/15/30^(f)			19		16,514
4.80%, 11/18/44			61		51,311
4.10%, 04/15/50			93		68,195


					2,250,076

Containers & Packaging — 0.7%
Ardagh Metal Packaging Finance USA LLC/Ardagh Metal Packaging Finance PLC, 4.00%, 09/01/29^(b)(f)			666		536,830
Ardagh Packaging Finance PLC/Ardagh Holdings USA, Inc.
5.25%, 04/30/25^(b)			200		193,206
2.13%, 08/15/26^(d)	EUR		200		185,562
5.25%, 08/15/27^(b)	USD		202		127,260
Clydesdale Acquisition Holdings, Inc.^(b)(f)
6.63%, 04/15/29			219		218,824
8.75%, 04/15/30			476		467,689
LABL, Inc.^(b)
6.75%, 07/15/26			40		39,517
5.88%, 11/01/28			81		74,488
9.50%, 11/01/28			301		304,478
Mauser Packaging Solutions Holding Co.^(b)
7.88%, 08/15/26^(f)			1,537		1,565,820
9.25%, 04/15/27			44		43,650
OI European Group BV, 6.25%, 05/15/28^(b)	EUR		100		112,425
Owens-Brockway Glass Container, Inc.^(b)
6.63%, 05/13/27	USD		27		27,015
7.25%, 05/15/31			118		120,183


S C H E D U L E O F I N V E S T M E N T S		7

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Containers & Packaging (continued)
Sealed Air Corp., 5.00%, 04/15/29^(b)	USD		38	$	36,475
Trident TPI Holdings, Inc., 12.75%, 12/31/28^(b)			23		24,540


					4,077,962

Diversified Consumer Services — 0.2%
Grand Canyon University, 5.13%, 10/01/28			702		634,868
Service Corp. International, 4.00%, 05/15/31			20		17,719
Sotheby’s, 7.38%, 10/15/27^(b)(f)			465		432,953
Wand NewCo 3, Inc., 7.63%, 01/30/32^(b)			333		344,397


					1,429,937

Diversified REITs — 1.3%
American Tower Corp., 2.90%, 01/15/30^(f)			2,500		2,198,094
Crown Castle, Inc.
3.10%, 11/15/29			750		669,316
2.10%, 04/01/31			1,000		809,453
2.90%, 04/01/41			350		247,485
Equinix, Inc., 2.50%, 05/15/31			500		417,077
GLP Capital LP/GLP Financing II, Inc., 3.25%, 01/15/32^(f)			269		226,452
HAT Holdings I LLC/HAT Holdings II LLC, 8.00%, 06/15/27^(b)			130		135,551
Iron Mountain Information Management Services, Inc., 5.00%, 07/15/32^(b)			127		115,985
MPT Operating Partnership LP/MPT Finance Corp.
2.50%, 03/24/26	GBP		200		215,361
5.25%, 08/01/26	USD		26		23,801
5.00%, 10/15/27			28		23,450
4.63%, 08/01/29			272		208,752
3.50%, 03/15/31			387		265,722
Prologis LP, 4.63%, 01/15/33^(f)			1,000		971,271
SBA Communications Corp.
3.13%, 02/01/29^(f)			321		283,284
3.88%, 02/15/27			18		17,120
Ventas Realty LP, 4.13%, 01/15/26			870		849,679
VICI Properties LP/VICI Note Co., Inc., 4.63%, 12/01/29^(b)			126		119,161


					7,797,014

Diversified Telecommunication Services — 3.1%
AT&T, Inc.
6.38%, 03/01/41			520		555,163
5.15%, 03/15/42			1,200		1,140,413
4.75%, 05/15/46^(f)			1,500		1,343,323
Bell Telephone Co. of Canada or Bell Canada, Series US-4, 3.65%, 03/17/51			335		252,141
Cablevision Lightpath LLC^(b)
3.88%, 09/15/27			220		197,535
5.63%, 09/15/28			200		166,904
Cellnex Telecom SA, 2.13%, 08/11/30^(d)(j)	EUR		100		110,442
Frontier Communications Holdings LLC^(b)
5.00%, 05/01/28	USD		293		271,966
8.75%, 05/15/30			1,073		1,097,918
8.63%, 03/15/31			198		202,223
Iliad Holding SASU, 6.50%, 10/15/26^(b)(f)			529		524,045
Kaixo Bondco Telecom SA, 5.13%, 09/30/29^(d)	EUR		100		104,320
Level 3 Financing, Inc.^(b)
10.50%, 04/15/29	USD		689		702,780
4.88%, 06/15/29			656		437,880
11.00%, 11/15/29			475		494,675
10.50%, 05/15/30			686		701,435
3.88%, 10/15/30			68		40,120
Lumen Technologies, Inc.^(b) 4.13%, 04/15/29			140		88,090


Security		Par (000)		Value

Diversified Telecommunication Services (continued)
Lumen Technologies, Inc.^(b)(continued) 4.13%, 04/15/30	USD		140	$	86,692
Network i2i Ltd., (5-year CMT + 4.27%), 5.65%^(a)(d)(i)			400		396,375
Sable International Finance Ltd., 5.75%, 09/07/27^(b)			200		192,118
SoftBank Group Corp.^(d)
2.88%, 01/06/27	EUR		100		102,086
3.88%, 07/06/32			100		96,557
Telecom Italia Capital SA
6.38%, 11/15/33	USD		3		2,838
6.00%, 09/30/34^(f)			284		259,762
7.20%, 07/18/36			193		188,386
7.72%, 06/04/38			93		93,158
Telecom Italia SpA/Milano, 6.88%, 02/15/28^(d)	EUR		100		113,966
Uniti Group LP/Uniti Group Finance, Inc./CSL Capital LLC, 10.50%, 02/15/28^(b)(f)	USD		871		902,990
Verizon Communications, Inc., 6.55%, 09/15/43^(f)			5,000		5,665,256
Zayo Group Holdings, Inc.^(b)
4.00%, 03/01/27^(f)			1,714		1,410,867
6.13%, 03/01/28			495		346,386


					18,288,810

Electric Utilities — 4.8%
Baltimore Gas and Electric Co.
3.50%, 08/15/46			800		597,372
3.75%, 08/15/47			500		388,222
CenterPoint Energy Houston Electric LLC, Series AI, 4.45%, 10/01/32			750		719,536
Cleveland Electric Illuminating Co., 5.95%, 12/15/36			434		437,747
Duke Energy Carolinas LLC
6.10%, 06/01/37			640		672,261
6.00%, 01/15/38			1,675		1,775,060
Duke Energy Florida LLC
6.35%, 09/15/37^(f)			2,775		2,997,745
6.40%, 06/15/38			770		841,855
E.ON International Finance BV, 6.65%, 04/30/38^(b)			2,000		2,172,315
Edison International, Series A, (5-year CMT + 4.70%), 5.38%^(a)(i)			21		20,321
Electricite de France SA, 5.60%, 01/27/40^(b)			2,800		2,722,612
EnBW Energie Baden-Wuerttemberg AG, (5-year EURIBOR ICE Swap + 2.66%), 5.25%, 01/23/84^(a)(d)	EUR		100		110,287
Eversource Energy, 2.55%, 03/15/31	USD		350		292,489
Mong Duong Finance Holdings BV, 5.13%, 05/07/29^(d)			531		507,333
NextEra Energy Operating Partners LP^(b)
3.88%, 10/15/26			41		38,237
7.25%, 01/15/29			106		108,455
Ohio Power Co., Series D, 6.60%, 03/01/33^(f)			3,000		3,211,333
Oncor Electric Delivery Co. LLC^(f)
4.15%, 06/01/32			1,000		939,840
4.55%, 09/15/32			1,000		966,042
Pacific Gas and Electric Co., 6.95%, 03/15/34			104		113,855
San Diego Gas & Electric Co.
4.95%, 08/15/28			1,565		1,570,870
Series VVV, 1.70%, 10/01/30			750		616,485
Southern California Edison Co., 5.63%, 02/01/36			1,300		1,314,960
Star Energy Geothermal Wayang Windu Ltd., 6.75%, 04/24/33^(d)			211		211,862
Talen Energy Supply LLC, 8.63%, 06/01/30^(b)			91		97,311
TransAlta Corp., 7.75%, 11/15/29			77		80,041
Virginia Electric and Power Co., Series A, 6.00%, 05/15/37^(f)			3,920		4,112,407
Vistra Operations Co. LLC^(b) 5.00%, 07/31/27			12		11,620


8

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Electric Utilities (continued)
Vistra Operations Co. LLC^(b)(continued)
7.75%, 10/15/31	USD		233	$	244,016
6.95%, 10/15/33			145		154,768


					28,047,257

Electrical Equipment — 0.1%
Eaton Corp., 4.15%, 11/02/42			500		438,497
Nexans SA, 4.25%, 03/11/30^(d)	EUR		100		108,424
WESCO Distribution, Inc.^(b)
6.38%, 03/15/29	USD		131		132,347
6.63%, 03/15/32			132		134,137


					813,405

Electronic Equipment, Instruments & Components — 0.3%
Coherent Corp., 5.00%, 12/15/29^(b)(f)			236		222,275
Corning, Inc., 4.38%, 11/15/57			2,000		1,656,116
Imola Merger Corp., 4.75%, 05/15/29^(b)			40		37,506


					1,915,897

Energy Equipment & Services — 0.4%
Archrock Partners LP/Archrock Partners Finance Corp., 6.88%, 04/01/27^(b)			246		246,747
Borr IHC Ltd./Borr Finance LLC, 10.38%, 11/15/30^(b)			200		208,000
Halliburton Co., 5.00%, 11/15/45^(f)			500		469,428
Kodiak Gas Services LLC, 7.25%, 02/15/29^(b)(f)			330		336,134
Oceaneering International, Inc., 6.00%, 02/01/28			45		44,335
Patterson-UTI Energy, Inc., 7.15%, 10/01/33			65		69,878
USA Compression Partners LP/USA Compression Finance Corp.
6.88%, 04/01/26			258		257,703
6.88%, 09/01/27			96		96,229
7.13%, 03/15/29^(b)			244		247,039
Vallourec SACA, 8.50%, 06/30/26^(d)	EUR		23		25,031
Weatherford International Ltd.^(b)
6.50%, 09/15/28	USD		99		102,107
8.63%, 04/30/30^(f)			220		229,673


					2,332,304

Entertainment — 0.0%
Lions Gate Capital Holdings LLC, 5.50%, 04/15/29^(b)			155		118,581


Environmental, Maintenance & Security Service — 0.4%
Clean Harbors, Inc., 6.38%, 02/01/31^(b)			53		53,389
Covanta Holding Corp.
4.88%, 12/01/29^(b)			92		82,455
5.00%, 09/01/30			48		42,302
GFL Environmental, Inc.^(b)
4.00%, 08/01/28			174		160,372
3.50%, 09/01/28			43		39,388
4.75%, 06/15/29^(f)			148		139,185
4.38%, 08/15/29			252		232,161
6.75%, 01/15/31			213		218,285
Waste Management, Inc., 2.95%, 06/01/41			350		261,700
Waste Pro USA, Inc., 5.50%, 02/15/26^(b)			813		800,706


					2,029,943

Financial Services^(b)— 0.6%
ASG Finance Designated Activity Co., 7.88%, 12/03/24			200		196,624
Freedom Mortgage Holdings LLC, 9.25%, 02/01/29			38		38,891
GGAM Finance Ltd.
7.75%, 05/15/26			30		30,618
8.00%, 02/15/27			148		152,813
8.00%, 06/15/28			113		118,009
6.88%, 04/15/29^(g)			138		138,518


Security		Par (000)		Value

Financial Services (continued)
Jefferies Finance LLC/JFIN Co.-Issuer Corp., 5.00%, 08/15/28	USD		220	$	202,309
Macquarie Airfinance Holdings Ltd.
6.40%, 03/26/29			40		40,633
8.13%, 03/30/29			203		214,697
6.50%, 03/26/31			95		96,694
Nationstar Mortgage Holdings, Inc.
5.00%, 02/01/26			898		878,787
6.00%, 01/15/27			33		32,532
5.13%, 12/15/30			75		68,046
5.75%, 11/15/31			115		106,070
7.13%, 02/01/32			376		373,425
PennyMac Financial Services, Inc., 7.88%, 12/15/29			177		181,876
Rocket Mortgage LLC/Rocket Mortgage Co-Issuer, Inc.
2.88%, 10/15/26^(f)			604		558,049
3.88%, 03/01/31			98		85,378
4.00%, 10/15/33			56		47,437


					3,561,406

Food Products — 0.3%
Aramark International Finance SARL, 3.13%, 04/01/25^(d)	EUR		100		106,521
Chobani LLC/Chobani Finance Corp., Inc.^(b)
4.63%, 11/15/28	USD		466		434,563
7.63%, 07/01/29			736		746,120
Darling Global Finance BV, 3.63%, 05/15/26^(d)	EUR		100		106,267
Fiesta Purchaser, Inc., 7.88%, 03/01/31^(b)	USD		93		96,041


					1,489,512

Gas Utilities — 0.3%
AmeriGas Partners LP/AmeriGas Finance Corp., 9.38%, 06/01/28^(b)			193		199,853
KeySpan Gas East Corp., 5.82%, 04/01/41^(b)			1,010		969,701
NiSource, Inc., 1.70%, 02/15/31			400		319,490


					1,489,044

Ground Transportation — 1.3%
Avis Budget Car Rental LLC/Avis Budget Finance, Inc., 8.00%, 02/15/31^(b)			150		149,756
Burlington Northern Santa Fe LLC, 5.75%, 05/01/40			1,890		1,995,940
GN Bondco LLC, 9.50%, 10/15/31^(b)(f)			201		200,641
Lima Metro Line 2 Finance Ltd., 5.88%, 07/05/34^(b)			2,184		2,166,722
Norfolk Southern Corp., 2.30%, 05/15/31			1,800		1,522,198
Uber Technologies, Inc.
0.00%, 12/15/25^(j)(k)			99		111,127
4.50%, 08/15/29^(b)(f)			277		262,823
Series 2028, 0.88%, 12/01/28^(b)(j)			316		390,892
Union Pacific Corp.
3.38%, 02/14/42			350		277,708
3.84%, 03/20/60			800		614,243


					7,692,050

Health Care Equipment & Supplies — 0.9%
Avantor Funding, Inc.
2.63%, 11/01/25^(d)	EUR		100		105,188
4.63%, 07/15/28^(b)(f)	USD		158		149,723
3.88%, 11/01/29^(b)			17		15,325
Bausch & Lomb Escrow Corp., 8.38%, 10/01/28^(b)			876		906,362
Becton Dickinson & Co.
4.30%, 08/22/32			750		711,665
4.69%, 12/15/44^(f)			600		543,316
Medline Borrower LP^(b) 3.88%, 04/01/29			224		203,886


S C H E D U L E O F I N V E S T M E N T S		9

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Health Care Equipment & Supplies (continued)
Medline Borrower LP^(b)(continued) 5.25%, 10/01/29^(f)	USD		703	$	664,454
Neogen Food Safety Corp., 8.63%, 07/20/30^(b)			136		146,506
Thermo Fisher Scientific, Inc.
5.09%, 08/10/33			495		500,438
5.30%, 02/01/44^(f)			1,000		1,002,172


					4,949,035

Health Care Providers & Services — 1.9%
Acadia Healthcare Co., Inc., 5.50%, 07/01/28^(b)			37		36,019
Aetna, Inc., 4.50%, 05/15/42			575		497,486
AHP Health Partners, Inc., 5.75%, 07/15/29^(b)			232		211,120
Catalent Pharma Solutions, Inc.^(b)
5.00%, 07/15/27			98		96,503
3.13%, 02/15/29			56		53,512
3.50%, 04/01/30^(f)			184		175,243
CHS/Community Health Systems, Inc.^(b)
5.63%, 03/15/27			115		105,846
6.00%, 01/15/29			406		354,681
5.25%, 05/15/30^(f)			570		464,785
4.75%, 02/15/31^(f)			385		297,123
Elevance Health, Inc., 4.65%, 08/15/44			1,500		1,351,558
Encompass Health Corp., 4.75%, 02/01/30			217		203,320
Fortrea Holdings, Inc., 7.50%, 07/01/30^(b)(f)			132		136,262
HCA, Inc., 5.50%, 06/15/47			1,090		1,036,184
HealthEquity, Inc., 4.50%, 10/01/29^(b)			355		327,536
IQVIA, Inc., 6.25%, 02/01/29			76		78,913
Legacy LifePoint Health LLC, 4.38%, 02/15/27^(b)			56		53,363
LifePoint Health, Inc.^(b)
9.88%, 08/15/30^(f)			189		197,702
11.00%, 10/15/30			291		311,018
Medline Borrower LP/Medline Co-Issuer, Inc., 6.25%, 04/01/29^(b)			139		139,622
Molina Healthcare, Inc.^(b)
4.38%, 06/15/28			32		30,081
3.88%, 11/15/30			122		108,467
Northwell Healthcare, Inc., 4.26%, 11/01/47			725		600,794
Prime Healthcare Services, Inc., 7.25%, 11/01/25^(b)			30		29,841
RegionalCare Hospital Partners Holdings, Inc./LifePoint Health, Inc., 9.75%, 12/01/26^(b)			59		59,079
Star Parent, Inc., 9.00%, 10/01/30^(b)			622		658,266
Surgery Center Holdings, Inc.^(b)
6.75%, 07/01/25			189		189,019
7.25%, 04/15/32^(g)			337		339,617
Tenet Healthcare Corp.
4.63%, 06/15/28			55		52,371
6.75%, 05/15/31^(b)			344		350,271
UnitedHealth Group, Inc.
5.80%, 03/15/36^(f)			1,750		1,876,069
3.05%, 05/15/41			600		454,160


					10,875,831

Health Care Technology — 0.2%
AthenaHealth Group, Inc., 6.50%, 02/15/30^(b)(f)			1,290		1,179,858


Hotel & Resort REITs — 0.2%
RHP Hotel Properties LP/RHP Finance Corp.^(b)
7.25%, 07/15/28			172		177,128
6.50%, 04/01/32			319		320,077


Security		Par (000)		Value

Hotel & Resort REITs (continued)
Service Properties Trust
7.50%, 09/15/25	USD		64	$	64,863
8.63%, 11/15/31^(b)(f)			752		801,960


					1,364,028

Hotels, Restaurants & Leisure — 2.3%
Boyne USA, Inc., 4.75%, 05/15/29^(b)			142		131,630
Burger King (Restaurant Brands International, Inc.)/New Red Finance, Inc.^(b)
3.88%, 01/15/28			39		36,653
4.38%, 01/15/28			122		115,404
4.00%, 10/15/30			98		87,318
Caesars Entertainment, Inc.^(b)
4.63%, 10/15/29^(f)			102		93,011
7.00%, 02/15/30^(f)			462		474,236
6.50%, 02/15/32			430		433,787
Carnival Corp.^(b)
4.00%, 08/01/28			119		110,258
6.00%, 05/01/29^(f)			425		419,352
7.00%, 08/15/29			104		108,470
Carnival Holdings Bermuda Ltd., 10.38%, 05/01/28^(b)			1,454		1,586,109
Churchill Downs, Inc.^(b)
5.50%, 04/01/27			110		107,969
4.75%, 01/15/28			207		197,057
5.75%, 04/01/30			241		232,638
6.75%, 05/01/31			263		264,469
Corvias Campus Living - USG LLC, 5.30%, 07/01/50^(c)			5,533		1,966,923
Fertitta Entertainment LLC/Fertitta Entertainment Finance Co., Inc.^(b)
4.63%, 01/15/29			153		140,297
6.75%, 01/15/30			84		75,425
Hilton Domestic Operating Co., Inc.
3.75%, 05/01/29^(b)			99		90,821
4.88%, 01/15/30			19		18,217
4.00%, 05/01/31^(b)			79		70,608
3.63%, 02/15/32^(b)			38		32,718
6.13%, 04/01/32^(b)			111		111,472
Hilton Grand Vacations Borrower Escrow LLC/Hilton Grand Vacations Borrower Escrow Esc, 6.63%, 01/15/32^(b)			147		147,593
Light & Wonder International, Inc.^(b)
7.25%, 11/15/29			96		98,550
7.50%, 09/01/31			132		137,267
Lindblad Expeditions Holdings, Inc., 9.00%, 05/15/28^(b)			166		175,538
Lindblad Expeditions LLC, 6.75%, 02/15/27^(b)			104		104,804
Lottomatica SpA/Roma, (3-mo. EURIBOR + 4.00%), 7.94%, 12/15/30^(a)(d)	EUR		100		109,234
Melco Resorts Finance Ltd.^(b)
4.88%, 06/06/25	USD		200		195,000
5.75%, 07/21/28			200		189,160
5.38%, 12/04/29			400		364,076
Merlin Entertainments Group US Holdings, Inc., 7.38%, 02/15/31^(b)			200		201,506
MGM China Holdings Ltd.
5.88%, 05/15/26^(d)(f)			450		443,813
4.75%, 02/01/27^(b)			200		190,111
NCL Corp. Ltd.^(b)
5.88%, 03/15/26			141		139,188
8.38%, 02/01/28			95		100,351
8.13%, 01/15/29			77		81,480
7.75%, 02/15/29			84		87,215


10

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Hotels, Restaurants & Leisure (continued)
NCL Finance Ltd., 6.13%, 03/15/28^(b)	USD		84	$	82,951
Ontario Gaming GTA LP, 8.00%, 08/01/30^(b)			191		196,725
Premier Entertainment Sub LLC/Premier Entertainment Finance Corp.^(b)
5.63%, 09/01/29			63		48,096
5.88%, 09/01/31			79		57,754
Raising Cane’s Restaurants LLC, 9.38%, 05/01/29^(b)			90		97,267
Royal Caribbean Cruises Ltd.^(b)
8.25%, 01/15/29			50		52,885
9.25%, 01/15/29^(f)			116		124,418
6.25%, 03/15/32			196		197,560
Scientific Games Holdings LP/Scientific Games U.S. FinCo, Inc., 6.63%, 03/01/30^(b)			171		165,313
Six Flags Entertainment Corp., 7.25%, 05/15/31^(b)(f)			459		465,017
Station Casinos LLC^(b)
4.50%, 02/15/28			123		115,870
6.63%, 03/15/32			122		123,241
Studio City Co. Ltd., 7.00%, 02/15/27^(d)			200		200,188
Viking Cruises Ltd.^(b)
5.88%, 09/15/27			95		93,206
7.00%, 02/15/29			34		34,147
9.13%, 07/15/31^(f)			316		345,581
Viking Ocean Cruises Ship VII Ltd., 5.63%, 02/15/29^(b)			111		108,023
Wynn Macau Ltd.
4.88%, 10/01/24^(d)			200		198,250
5.63%, 08/26/28^(b)(f)			400		378,750
5.13%, 12/15/29^(b)			200		182,125
Wynn Resorts Finance LLC/Wynn Resorts Capital Corp.^(b)
5.13%, 10/01/29			225		213,154
7.13%, 02/15/31^(f)			286		295,980


					13,446,229

Household Durables^(b)— 0.1%
Beazer Homes USA, Inc., 7.50%, 03/15/31			49		49,486
Brookfield Residential Properties, Inc./Brookfield Residential U.S. LLC, 5.00%, 06/15/29			141		127,905
CD&R Smokey Buyer, Inc., 6.75%, 07/15/25			173		171,407
Dream Finders Homes, Inc., 8.25%, 08/15/28			73		76,205
LGI Homes, Inc., 8.75%, 12/15/28			56		59,087
STL Holding Co. LLC, 8.75%, 02/15/29			76		77,998
SWF Escrow Issuer Corp., 6.50%, 10/01/29^(f)			107		79,132
Tempur Sealy International, Inc., 3.88%, 10/15/31			45		38,214


					679,434

Household Products — 0.0%
Central Garden & Pet Co.
5.13%, 02/01/28			35		33,932
4.13%, 10/15/30^(f)			105		94,195
Spectrum Brands, Inc., 3.88%, 03/15/31^(b)			107		103,070


					231,197

Independent Power and Renewable Electricity Producers — 0.2%
Alexander Funding Trust II, 7.47%, 07/31/28^(b)			105		111,017
Calpine Corp.^(b)
5.13%, 03/15/28			92		88,296
5.00%, 02/01/31			41		37,609
Clearway Energy Operating LLC, 4.75%, 03/15/28^(b)			124		117,867
Greenko Dutch BV, 3.85%, 03/29/26^(d)(f)			185		173,671
Greenko Solar Mauritius Ltd., 5.95%, 07/29/26^(d)			200		194,520
India Cleantech Energy, 4.70%, 08/10/26^(b)			213		199,805


Security		Par (000)		Value

Independent Power and Renewable Electricity Producers (continued)
NRG Energy, Inc., 7.00%, 03/15/33^(b)	USD		150	$	160,058
SCC Power PLC^(b)(h)
(4.00% Cash and 4.00% PIK), 8.00%, 12/31/28			257		106,388
(4.00% Cash or 4.00% PIK), 4.00%, 05/17/32			140		18,455


					1,207,686

Insurance — 3.8%
Alliant Holdings Intermediate LLC/Alliant Holdings Co-Issuer^(b)
4.25%, 10/15/27			348		327,628
6.75%, 10/15/27^(f)			1,279		1,260,101
6.75%, 04/15/28			210		211,482
5.88%, 11/01/29^(f)			938		871,391
7.00%, 01/15/31^(f)			664		670,653
AmWINS Group, Inc., 6.38%, 02/15/29^(b)			85		85,459
Aon Global Ltd., 4.60%, 06/14/44			500		437,789
Ardonagh Finco Ltd.
6.88%, 02/15/31^(d)	EUR		100		106,267
7.75%, 02/15/31^(b)	USD		430		428,059
Ardonagh Group Finance Ltd., 8.88%, 02/15/32^(b)			385		380,119
AssuredPartners, Inc., 7.50%, 02/15/32^(b)			237		232,889
Berkshire Hathaway Finance Corp., 4.40%, 05/15/42^(f)			500		468,423
FWD Group Holdings Ltd., 8.40%, 04/05/29^(b)(g)			230		238,050
Howden UK Refinance PLC/Howden UK Refinance 2 PLC/Howden US Refinance LLC^(b)
7.25%, 02/15/31			859		862,244
8.13%, 02/15/32			586		590,973
HUB International Ltd.^(b)(f)
7.25%, 06/15/30			1,645		1,690,562
7.38%, 01/31/32			2,156		2,170,519
Jones Deslauriers Insurance Management, Inc.^(b)
8.50%, 03/15/30			288		300,206
10.50%, 12/15/30			183		193,107
Liberty Mutual Group, Inc., 6.50%, 05/01/42^(b)			2,000		1,999,007
Marsh & McLennan Cos., Inc., 5.88%, 08/01/33^(f)			1,500		1,596,352
NFP Corp.^(b)
4.88%, 08/15/28			306		306,693
6.88%, 08/15/28			965		977,316
7.50%, 10/01/30			74		77,959
8.50%, 10/01/31			120		132,067
Panther Escrow Issuer LLC, 7.13%, 06/01/31^(b)(g)			1,561		1,587,084
Progressive Corp., 3.00%, 03/15/32			750		653,472
Prudential Financial, Inc.
5.90%, 03/17/36			500		516,313
5.70%, 12/14/36			1,625		1,704,770
Ryan Specialty LLC, 4.38%, 02/01/30^(b)			96		89,724
Teachers Insurance & Annuity Association of America, 4.27%, 05/15/47^(b)			700		580,242
USI, Inc./New York, 7.50%, 01/15/32^(b)			295		295,543


					22,042,463

Interactive Media & Services — 0.1%
Acuris Finance U.S., Inc./Acuris Finance SARL, 5.00%, 05/01/28^(b)			272		247,150
iliad SA^(d)
5.38%, 06/14/27	EUR		100		109,902
5.63%, 02/15/30			100		110,733


					467,785


S C H E D U L E O F I N V E S T M E N T S		11

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Internet Software & Services^(b)— 0.0%
Go Daddy Operating Co. LLC/GD Finance Co., Inc., 5.25%, 12/01/27	USD		12	$	11,736
Match Group Holdings II LLC 5.63%, 02/15/29			6		5,815
4.13%, 08/01/30			20		17,795
3.63%, 10/01/31^(f)			134		113,867


					149,213

IT Services — 0.8%
CA Magnum Holdings, 5.38%, 10/31/26^(b)			258		247,680
Camelot Finance SA, 4.50%, 11/01/26^(b)			198		190,507
Central Parent LLC/CDK Global II LLC/CDK Financing Co., Inc., 8.00%, 06/15/29^(b)			270		279,892
Central Parent, Inc./CDK Global, Inc., 7.25%, 06/15/29^(b)(f)			217		221,515
Engineering - Ingegneria Informatica - SpA, 11.13%, 05/15/28^(d)	EUR		100		115,976
Fair Isaac Corp., 4.00%, 06/15/28^(b)	USD		45		42,032
Fidelity National Information Services, Inc., 4.50%, 08/15/46			1,000		833,553
Fiserv, Inc., 4.40%, 07/01/49^(f)			500		424,195
International Business Machines Corp. 4.40%, 07/27/32			500		480,699
4.75%, 02/06/33^(f)			550		541,124
2.95%, 05/15/50^(f)			750		499,709
KBR, Inc., 4.75%, 09/30/28^(b)			142		130,577
Twilio, Inc. 3.63%, 03/15/29			117		105,233
3.88%, 03/15/31			117		102,140
ZoomInfo Technologies LLC/ZoomInfo Finance Corp., 3.88%, 02/01/29^(b)			303		272,753


					4,487,585

Leisure Products — 0.1%
Acushnet Co., 7.38%, 10/15/28^(b)			55		56,995
Amer Sports Co., 6.75%, 02/16/31^(b)(f)			183		181,593
Mattel, Inc., 6.20%, 10/01/40			111		110,858


					349,446

Machinery — 0.7%
Chart Industries, Inc.^(b)7.50%, 01/01/30^(f)			277		287,650
9.50%, 01/01/31			93		101,275
Esab Corp., 6.25%, 04/15/29^(b)(g)			145		145,679
GrafTech Global Enterprises, Inc., 9.88%, 12/15/28^(b)(f)			82		60,868
Husky III Holding Ltd., (13.00% Cash or 13.75% PIK), 13.00%, 02/15/25^(b)(h)			241		241,406
Husky Injection Molding Systems Ltd./Titan Co- Borrower LLC, 9.00%, 02/15/29^(b)			489		505,684
Madison IAQ LLC^(b)4.13%, 06/30/28			172		159,083
5.88%, 06/30/29^(f)			339		310,144
OT Merger Corp., 7.88%, 10/15/29^(b)			78		55,697
Terex Corp., 5.00%, 05/15/29^(b)			110		103,850
Titan Acquisition Ltd./Titan Co.-Borrower LLC, 7.75%, 04/15/26^(b)			562		561,331
TK Elevator Holdco GmbH 6.63%, 07/15/28^(d)	EUR		91		94,880
7.63%, 07/15/28^(b)	USD		400		392,172
TK Elevator Midco GmbH, 4.38%, 07/15/27^(d)	EUR		303		314,231


Security		Par (000)		Value

Machinery (continued)
TK Elevator U.S. Newco, Inc., 5.25%, 07/15/27^(b)(f)	USD		741	$	715,872
Vertiv Group Corp., 4.13%, 11/15/28^(b)			330		307,046


					4,356,868

Marine Transportation — 0.0%
Danaos Corp., 8.50%, 03/01/28^(b)			100		102,050


Media — 3.8%
Altice Financing SA^(b)9.63%, 07/15/27			217		207,558
5.75%, 08/15/29			200		160,248
Cable One, Inc. 0.00%, 03/15/26^(j)(k)			62		54,002
1.13%, 03/15/28^(j)			336		252,202
4.00%, 11/15/30^(b)			166		129,551
CCO Holdings LLC/CCO Holdings Capital Corp.^(b)
5.13%, 05/01/27			77		73,363
5.00%, 02/01/28			95		88,436
5.38%, 06/01/29			21		19,224
6.38%, 09/01/29^(f)			517		490,469
4.75%, 03/01/30			82		70,409
4.25%, 02/01/31			262		213,962
7.38%, 03/01/31^(f)			1,093		1,071,886
4.75%, 02/01/32			182		148,534
4.25%, 01/15/34^(f)			253		190,978
Charter Communications Operating LLC/Charter Communications Operating Capital
5.38%, 05/01/47			1,100		886,342
4.80%, 03/01/50			1,000		740,212
Clear Channel Outdoor Holdings, Inc.^(b)5.13%, 08/15/27^(f)			171		161,191
7.75%, 04/15/28^(f)			237		207,565
9.00%, 09/15/28^(f)			811		844,750
7.50%, 06/01/29			448		370,515
7.88%, 04/01/30			382		379,768
CMG Media Corp., 8.88%, 12/15/27^(b)			213		141,157
Comcast Corp. 6.45%, 03/15/37			790		871,131
3.90%, 03/01/38			1,500		1,307,097
4.70%, 10/15/48^(f)			3,000		2,747,072
CSC Holdings LLC^(b)5.50%, 04/15/27			200		178,943
11.25%, 05/15/28			1,203		1,192,104
11.75%, 01/31/29			626		626,976
4.13%, 12/01/30^(f)			400		286,020
4.50%, 11/15/31			206		145,841
Directv Financing LLC, 8.88%, 02/01/30^(b)			97		96,766
Directv Financing LLC/Directv Financing Co-Obligor, Inc., 5.88%, 08/15/27^(b)			507		479,640
Discovery Communications LLC, 3.45%, 03/15/25			210		205,505
DISH DBS Corp.^(b)5.25%, 12/01/26			717		564,572
5.75%, 12/01/28			78		53,606
DISH Network Corp., 11.75%, 11/15/27^(b)			547		558,449
GCI LLC, 4.75%, 10/15/28^(b)			72		66,017
Gray Television, Inc.^(b)(f)5.88%, 07/15/26			144		140,240
7.00%, 05/15/27			241		224,138
Hughes Satellite Systems Corp., 5.25%, 08/01/26			72		59,923
Interpublic Group of Cos., Inc., 5.40%, 10/01/48			500		469,265
Lamar Media Corp., 4.00%, 02/15/30			21		19,086
Nexstar Media, Inc., 5.63%, 07/15/27^(b)			49		47,007


12

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Media (continued)
Outfront Media Capital LLC/Outfront Media Capital Corp.^(b)
5.00%, 08/15/27^(f)	USD		203	$	195,379
4.25%, 01/15/29^(f)			234		211,999
4.63%, 03/15/30			66		59,191
7.38%, 02/15/31			93		97,410
Pinewood Finco PLC, 6.00%, 03/27/30^(d)	GBP		100		126,215
Radiate Holdco LLC/Radiate Finance, Inc.^(b)
4.50%, 09/15/26	USD		205		163,006
6.50%, 09/15/28			281		134,019
Sirius XM Radio, Inc.^(b)
3.13%, 09/01/26			28		26,228
5.00%, 08/01/27^(f)			428		411,771
Stagwell Global LLC, 5.63%, 08/15/29^(b)			69		62,659
Sunrise FinCo I BV, 4.88%, 07/15/31^(b)			303		270,421
TCI Communications, Inc., 7.88%, 02/15/26			610		639,635
Univision Communications, Inc.^(b)6.63%, 06/01/27			158		154,530
8.00%, 08/15/28^(f)			694		707,020
7.38%, 06/30/30^(f)			120		118,661
Videotron Ltd., 3.63%, 06/15/29^(b)			54		48,810
VZ Secured Financing BV, 3.50%, 01/15/32^(d)	EUR		100		94,490
Walt Disney Co. 7.63%, 11/30/28	USD		385		425,291
5.40%, 10/01/43^(f)			500		510,269
Ziggo Bond Co. BV, 6.00%, 01/15/27^(b)			150		147,836
Ziggo BV, 4.88%, 01/15/30^(b)			200		179,547


					22,026,107

Metals & Mining — 0.9%
ABJA Investment Co. Pte. Ltd.^(d)5.95%, 07/31/24			250		249,070
5.45%, 01/24/28			200		199,500
Arsenal AIC Parent LLC^(b)8.00%, 10/01/30			161		169,032
11.50%, 10/01/31			495		551,313
ATI, Inc. 5.88%, 12/01/27			121		119,142
7.25%, 08/15/30			229		236,700
5.13%, 10/01/31			110		101,906
Big River Steel LLC/BRS Finance Corp., 6.63%, 01/31/29^(b)			329		330,850
Carpenter Technology Corp., 7.63%, 03/15/30			151		155,779
Constellium SE 4.25%, 02/15/26^(d)	EUR		100		107,457
3.75%, 04/15/29^(b)(f)	USD		591		531,722
JSW Steel Ltd., 5.95%, 04/18/24^(d)			200		199,820
Kaiser Aluminum Corp.^(b)4.63%, 03/01/28			126		118,230
4.50%, 06/01/31			366		323,811
New Gold, Inc., 7.50%, 07/15/27^(b)			273		273,617
Novelis Corp.^(b)3.25%, 11/15/26^(f)			542		505,025
4.75%, 01/30/30^(f)			328		302,620
3.88%, 08/15/31			200		171,801
Novelis Sheet Ingot GmbH, 3.38%, 04/15/29^(d)	EUR		100		101,423
Rio Tinto Finance USA PLC, 4.75%, 03/22/42	USD		400		379,152


Security		Par (000)		Value

Metals & Mining (continued)
Samarco Mineracao SA, (9.50% PIK), 9.50%, 06/30/31^(d)(h)	USD		43	$	38,700
Vedanta Resources Finance II PLC, 13.88%, 01/21/27^(d)			94		88,536


					5,255,206

Mortgage Real Estate Investment Trusts (REITs)^(b)— 0.0%
Ladder Capital Finance Holdings LLLP/Ladder Capital Finance Corp.
5.25%, 10/01/25			30		29,466
4.25%, 02/01/27			42		39,295
4.75%, 06/15/29			46		41,815
Starwood Property Trust, Inc., 7.25%, 04/01/29			94		94,748


					205,324

Office REITs — 0.1%
Alexandria Real Estate Equities, Inc.
4.75%, 04/15/35			140		132,296
4.00%, 02/01/50			550		423,296
Highwoods Realty LP, 7.65%, 02/01/34			40		43,625


					599,217

Oil, Gas & Consumable Fuels — 6.9%
Aethon United BR LP/Aethon United Finance Corp., 8.25%, 02/15/26^(b)			431		435,973
Antero Midstream Partners LP/Antero Midstream Finance Corp.^(b)
5.75%, 01/15/28			39		38,399
5.38%, 06/15/29			140		134,632
6.63%, 02/01/32			185		185,808
Apache Corp., 5.35%, 07/01/49			22		18,597
Ascent Resources Utica Holdings LLC/ARU Finance Corp.^(b)
9.00%, 11/01/27			281		353,653
8.25%, 12/31/28			453		465,360
Series B, 5.88%, 06/30/29			44		41,951
Baytex Energy Corp., 8.50%, 04/30/30^(b)			144		150,363
Buckeye Partners LP
5.85%, 11/15/43			94		80,086
5.60%, 10/15/44			59		47,154
Burlington Resources LLC, 5.95%, 10/15/36			685		728,346
Callon Petroleum Co.
6.38%, 07/01/26			111		112,180
8.00%, 08/01/28^(b)			66		68,966
7.50%, 06/15/30^(b)			97		102,577
Chesapeake Energy Corp.^(b)
5.88%, 02/01/29			28		27,770
6.75%, 04/15/29^(f)			96		97,029
CITGO Petroleum Corp., 8.38%, 01/15/29^(b)(f)			322		338,306
Civitas Resources, Inc.^(b)
8.38%, 07/01/28			223		234,755
8.63%, 11/01/30^(f)			182		195,427
8.75%, 07/01/31			336		359,540
CNX Midstream Partners LP, 4.75%, 04/15/30^(b)			66		58,824
CNX Resources Corp., 7.38%, 01/15/31^(b)			70		71,290
Comstock Resources, Inc.^(b)(f)
6.75%, 03/01/29			387		369,060
5.88%, 01/15/30			447		404,807
ConocoPhillips, 6.50%, 02/01/39			600		680,638
CQP Holdco LP/BIP-V Chinook Holdco LLC, 5.50%, 06/15/31^(b)			500		472,558


S C H E D U L E O F I N V E S T M E N T S		13

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Oil, Gas & Consumable Fuels (continued)
Crescent Energy Finance LLC^(b)9.25%, 02/15/28	USD		400	$	422,354
7.63%, 04/01/32			331		333,550
Devon Energy Corp. 5.85%, 12/15/25			1,000		1,005,427
4.75%, 05/15/42			300		261,113
Diamond Foreign Asset Co./Diamond Finance LLC, 8.50%, 10/01/30^(b)			140		147,757
DT Midstream, Inc., 4.38%, 06/15/31^(b)			209		189,275
Ecopetrol SA, 8.88%, 01/13/33			175		183,836
Enbridge, Inc.^(a)
(3-mo. CME Term SOFR + 3.90%), 6.25%, 03/01/78			1,935		1,883,299
(5-year CMT + 4.43%), 8.50%, 01/15/84			123		133,644
Series 20-A, (5-year CMT + 5.31%), 5.75%, 07/15/80			950		899,078
Energean Israel Finance Ltd., 8.50%, 09/30/33^(b)(d)			55		55,040
Energy Transfer LP 5.30%, 04/15/47			540		490,953
(5-year CMT + 4.02%), 8.00%, 05/15/54^(a)			397		416,402
Series H, (5-year CMT + 5.69%), 6.50%^(a)(i)			307		300,904
EnLink Midstream LLC, 6.50%, 09/01/30^(b)			125		128,603
EnLink Midstream Partners LP, 5.60%, 04/01/44			141		125,539
Enterprise Products Operating LLC, 6.13%, 10/15/39			1,400		1,496,260
EOG Resources, Inc., 5.10%, 01/15/36			200		196,586
EQM Midstream Partners LP 4.13%, 12/01/26			68		65,388
4.50%, 01/15/29^(b)			13		12,189
6.38%, 04/01/29^(b)			201		202,476
7.50%, 06/01/30^(b)			57		60,930
FTAI Infra Escrow Holdings LLC, 10.50%, 06/01/27^(b)			57		59,389
Genesis Energy LP/Genesis Energy Finance Corp.
7.75%, 02/01/28			118		118,607
8.25%, 01/15/29			209		214,559
8.88%, 04/15/30			163		170,621
Harvest Midstream I LP, 7.50%, 09/01/28^(b)			40		40,557
Hess Corp., 4.30%, 04/01/27			1,100		1,078,566
Hilcorp Energy I LP/Hilcorp Finance Co.^(b)
6.25%, 11/01/28			70		69,924
5.75%, 02/01/29			127		123,703
6.00%, 04/15/30			12		11,749
8.38%, 11/01/33			320		346,942
Howard Midstream Energy Partners LLC, 8.88%, 07/15/28^(b)			179		188,883
HPCL-Mittal Energy Ltd., 5.45%, 10/22/26^(d)			200		194,750
Impulsora Pipeline LLC, 6.05%, 01/01/43^(c)			1,567		1,324,072
ITT Holdings LLC, 6.50%, 08/01/29^(b)(f)			232		211,723
Kinder Morgan, Inc., 5.05%, 02/15/46^(f)			1,400		1,243,040
Kinetik Holdings LP^(b)6.63%, 12/15/28			58		59,030
5.88%, 06/15/30^(f)			60		58,688
Leviathan Bond Ltd., 6.75%, 06/30/30^(b)(d)			22		20,413
Magnolia Oil & Gas Operating LLC/Magnolia Oil & Gas Finance Corp., 6.00%, 08/01/26^(b)			22		21,641
Marathon Petroleum Corp., 6.50%, 03/01/41^(f)			1,150		1,250,382
Matador Resources Co.^(b)6.88%, 04/15/28^(f)			167		170,854
6.50%, 04/15/32^(g)			159		159,193
Medco Oak Tree Pte. Ltd., 7.38%, 05/14/26^(d)			288		288,270
MPLX LP 4.25%, 12/01/27			250		243,137
4.80%, 02/15/29			500		493,908
Murphy Oil Corp., 5.88%, 12/01/42			18		16,151


Security		Par (000)		Value

Oil, Gas & Consumable Fuels (continued)
Nabors Industries Ltd.^(b)7.25%, 01/15/26	USD		65	$	64,598
7.50%, 01/15/28			177		166,011
Nabors Industries, Inc.^(b)7.38%, 05/15/27			10		9,982
9.13%, 01/31/30			118		122,680
New Fortress Energy, Inc.^(b)6.75%, 09/15/25			40		39,727
8.75%, 03/15/29			470		468,208
NGL Energy Operating LLC/NGL Energy Finance Corp.^(b)
8.13%, 02/15/29^(f)			325		332,859
8.38%, 02/15/32			658		674,520
Noble Finance II LLC, 8.00%, 04/15/30^(b)			209		217,705
Northern Oil & Gas, Inc. 8.13%, 03/01/28^(b)			513		520,689
3.63%, 04/15/29^(j)			96		116,880
8.75%, 06/15/31^(b)			212		223,864
PBF Holding Co. LLC/PBF Finance Corp., 7.88%, 09/15/30^(b)			158		163,888
Permian Resources Operating LLC^(b)8.00%, 04/15/27			189		194,658
5.88%, 07/01/29			170		167,168
9.88%, 07/15/31			209		232,889
7.00%, 01/15/32^(f)			208		215,782
Petroleos Mexicanos 4.25%, 01/15/25			55		53,445
6.50%, 03/13/27^(f)			142		133,481
8.75%, 06/02/29			204		199,122
5.95%, 01/28/31^(f)			245		196,343
6.70%, 02/16/32			117		97,403
6.38%, 01/23/45			48		30,996
Prairie Acquiror LP, 9.00%, 08/01/29^(b)			113		116,327
Precision Drilling Corp., 6.88%, 01/15/29^(b)			9		8,983
Rockcliff Energy II LLC, 5.50%, 10/15/29^(b)			111		103,876
Rockies Express Pipeline LLC, 4.95%, 07/15/29^(b)			36		33,645
Sabine Pass Liquefaction LLC, 5.88%, 06/30/26			1,750		1,763,811
Sitio Royalties Operating Partnership LP/Sitio Finance Corp., 7.88%, 11/01/28^(b)(f)			247		255,472
SM Energy Co., 6.50%, 07/15/28			75		75,321
Suncor Energy, Inc., 6.50%, 06/15/38			1,000		1,065,982
Tallgrass Energy Partners LP/Tallgrass Energy Finance Corp.^(b)
5.50%, 01/15/28			95		91,531
7.38%, 02/15/29			299		300,787
6.00%, 12/31/30			2		1,900
6.00%, 09/01/31			88		82,126
Talos Production, Inc.^(b)9.00%, 02/01/29			117		124,250
9.38%, 02/01/31			98		104,474
TransCanada PipeLines Ltd., 4.63%, 03/01/34			500		472,020
Transocean Aquila Ltd., 8.00%, 09/30/28^(b)			82		84,165
Transocean Titan Financing Ltd., 8.38%, 02/01/28^(b)			125		130,089
Transocean, Inc.^(b)7.50%, 01/15/26			411		408,427
11.50%, 01/30/27			358		373,114
8.00%, 02/01/27			261		259,061
8.75%, 02/15/30^(f)			436		454,190
Valaris Ltd., 8.38%, 04/30/30^(b)			537		553,933
Venture Global Calcasieu Pass LLC^(b)3.88%, 08/15/29			182		163,827
4.13%, 08/15/31			3		2,668


14

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Oil, Gas & Consumable Fuels (continued)
Venture Global Calcasieu Pass LLC^(b)(continued)
3.88%, 11/01/33	USD		409	$	347,487
Venture Global LNG, Inc.^(b)8.13%, 06/01/28			557		568,244
9.50%, 02/01/29			1,344		1,448,648
8.38%, 06/01/31			875		902,360
9.88%, 02/01/32			815		878,361
Vermilion Energy, Inc., 6.88%, 05/01/30^(b)			108		105,451
Vital Energy, Inc. 9.75%, 10/15/30^(f)			209		228,552
7.88%, 04/15/32^(b)			273		277,332
Western Midstream Operating LP, 5.25%, 02/01/50			102		91,242


					39,983,958

Paper & Forest Products — 0.2%
International Paper Co., 6.00%, 11/15/41			870		901,180


Passenger Airlines — 0.8%
Air Canada, 3.88%, 08/15/26^(b)			125		119,303
American Airlines Pass-Through Trust
Series 2015-2, Class A, 4.00%, 03/22/29			932		873,560
Series 2015-2, Class AA, 3.60%, 03/22/29			931		880,840
American Airlines, Inc., 8.50%, 05/15/29^(b)(f)			306		323,276
United Airlines Pass-Through Trust, Series 2023-1, Class A, 4.30%, 02/15/27			2,113		2,072,903
United Airlines, Inc.^(b)(f)4.38%, 04/15/26			113		109,241
4.63%, 04/15/29			252		234,360
VistaJet Malta Finance PLC/Vista Management Holding, Inc., 7.88%, 05/01/27^(b)			85		71,861


					4,685,344

Personal Care Products — 0.0%
Coty, Inc./HFC Prestige Products, Inc./HFC Prestige International U.S. LLC, 6.63%, 07/15/30^(b)			107		108,658


Pharmaceuticals — 1.6%
1375209 BC Ltd., 9.00%, 01/30/28^(b)			189		185,220
AbbVie, Inc. 3.20%, 05/14/26^(f)			500		482,591
4.55%, 03/15/35^(f)			2,140		2,068,408
4.45%, 05/14/46			2,095		1,881,215
Bristol-Myers Squibb Co. 3.55%, 03/15/42^(f)			350		280,694
4.35%, 11/15/47			300		259,046
Cheplapharm Arzneimittel GmbH, 3.50%, 02/11/27^(d)	EUR		100		104,227
CVS Health Corp. 5.13%, 07/20/45	USD		700		645,077
5.05%, 03/25/48			1,821		1,653,792
Jazz Securities DAC, 4.38%, 01/15/29^(b)			200		186,308
Option Care Health, Inc., 4.38%, 10/31/29^(b)			76		69,681
Takeda Pharmaceutical Co. Ltd., 2.05%, 03/31/30			500		423,974
Teva Pharmaceutical Finance Netherlands II BV, 7.38%, 09/15/29	EUR		100		119,380
Teva Pharmaceutical Finance Netherlands III BV
3.15%, 10/01/26	USD		299		278,719
4.75%, 05/09/27			200		192,356
7.88%, 09/15/29			200		214,112


					9,044,800


Security		Par (000)		Value

Professional Services^(b)— 0.1%
CoreLogic, Inc., 4.50%, 05/01/28^(f)	USD		607	$	544,274
Dun & Bradstreet Corp., 5.00%, 12/15/29			338		311,995


					856,269

Real Estate Management & Development — 0.2%
Agps Bondco PLC, 5.50%, 11/13/26^(d)(l)(m)	EUR		100		41,368
Anywhere Real Estate Group LLC/Anywhere Co.-Issuer Corp.
7.00%, 04/15/30^(b)	USD		150		133,303
Series AI, 7.00%, 04/15/30			170		151,017
Cushman & Wakefield U.S. Borrower LLC, 8.88%, 09/01/31^(b)			203		214,522
Fantasia Holdings Group Co. Ltd.^(a)(d)(l)(m)
11.75%, 04/17/22			200		3,000
10.88%, 01/09/23			307		4,605
11.88%, 06/01/23			400		6,000
9.25%, 07/28/23			300		4,500
i-595 Express LLC, 3.31%, 12/31/31^(c)			668		616,487
Theta Capital Pte. Ltd., 8.13%, 01/22/25^(d)			200		189,954


					1,364,756

Residential REITs — 0.2%
ERP Operating LP, 4.50%, 06/01/45			1,155		991,411


Retail REITs — 0.3%
Simon Property Group LP, 4.75%, 03/15/42			1,670		1,507,132


Semiconductors & Semiconductor Equipment — 1.2%
ams-OSRAM AG, 10.50%, 03/30/29^(d)	EUR		100		106,698
Broadcom, Inc. 4.75%, 04/15/29^(f)	USD		2,500		2,469,246
4.15%, 04/15/32^(b)			1,500		1,391,608
Entegris, Inc.^(b)4.38%, 04/15/28			78		73,310
4.75%, 04/15/29			625		598,972
Intel Corp. 5.13%, 02/10/30			750		761,405
2.00%, 08/12/31^(f)			1,000		821,747
KLA Corp., 3.30%, 03/01/50			500		367,013
NCR Atleos Corp., 9.50%, 04/01/29^(b)			158		168,998
QUALCOMM, Inc., 4.65%, 05/20/35			250		247,859


					7,006,856

Software — 2.2%
Boxer Parent Co., Inc. 6.50%, 10/02/25^(d)	EUR		100		107,764
7.13%, 10/02/25^(b)	USD		81		81,072
9.13%, 03/01/26^(b)(f)			516		515,809
Capstone Borrower, Inc., 8.00%, 06/15/30^(b)			205		212,718
Clarivate Science Holdings Corp.^(b)(f)
3.88%, 07/01/28			743		687,418
4.88%, 07/01/29			392		362,651
Cloud Software Group, Inc.^(b)(f)
6.50%, 03/31/29			2,147		2,037,420
9.00%, 09/30/29			1,072		1,028,174
Elastic NV, 4.13%, 07/15/29^(b)			129		116,088
McAfee Corp., 7.38%, 02/15/30^(b)(f)			410		375,989
Microsoft Corp., 2.92%, 03/17/52^(f)			1,600		1,131,160
MicroStrategy, Inc., 6.13%, 06/15/28^(b)			342		329,937
Oracle Corp. 5.38%, 07/15/40^(f)			3,025		2,934,310
4.00%, 11/15/47			400		312,267


S C H E D U L E O F I N V E S T M E N T S		15

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Software (continued)
Oracle Corp. (continued)
3.95%, 03/25/51^(f)	USD		600	$	457,162
Playtika Holding Corp., 4.25%, 03/15/29^(b)			54		46,748
SS&C Technologies, Inc., 5.50%, 09/30/27^(b)(f)			169		165,241
UKG, Inc., 6.88%, 02/01/31^(b)(f)			1,451		1,478,173
Veritas U.S., Inc./Veritas Bermuda Ltd., 7.50%, 09/01/25^(b)			189		173,287


					12,553,388

Specialized REITs^(b)— 0.1%
Iron Mountain, Inc.
7.00%, 02/15/29			220		224,193
5.63%, 07/15/32			62		58,564


					282,757

Specialty Retail^(b)— 0.1%
Arko Corp., 5.13%, 11/15/29			86		71,180
eG Global Finance PLC, 12.00%, 11/30/28			209		222,154
PetSmart, Inc./PetSmart Finance Corp., 7.75%, 02/15/29^(f)			493		479,956


					773,290

Technology Hardware, Storage & Peripherals — 0.2%
Apple, Inc., 3.75%, 11/13/47^(f)			1,000		825,065
Seagate HDD Cayman^(b)
8.25%, 12/15/29			202		217,042
8.50%, 07/15/31			319		344,731


					1,386,838

Textiles, Apparel & Luxury Goods^(b)— 0.0%
Hanesbrands, Inc., 4.88%, 05/15/26			117		113,915
Levi Strauss & Co., 3.50%, 03/01/31			11		9,650


					123,565

Tobacco — 0.9%
Altria Group, Inc.
2.45%, 02/04/32			200		162,294
5.38%, 01/31/44^(f)			2,000		1,969,942
Reynolds American, Inc.
4.45%, 06/12/25			394		388,731
7.00%, 08/04/41			1,000		1,043,141
5.85%, 08/15/45			1,500		1,391,320


					4,955,428

Trading Companies & Distributors^(b)— 0.1%
Beacon Roofing Supply, Inc.
4.13%, 05/15/29			68		61,676
6.50%, 08/01/30			98		99,444
GYP Holdings III Corp., 4.63%, 05/01/29			138		128,296


					289,416

Transportation Infrastructure — 0.8%
Aeropuertos Dominicanos Siglo XXI SA, 6.75%, 03/30/29^(b)			200		203,375
Azzurra Aeroporti SpA, 2.63%, 05/30/27^(d)	EUR		100		101,951
GMR Hyderabad International Airport Ltd., 4.25%, 10/27/27^(d)	USD		200		185,313
ITR Concession Co. LLC, 4.20%, 07/15/25^(b)			4,000		3,840,222
Transurban Finance Co. Pty. Ltd., 4.13%, 02/02/26^(b)			580		565,860


					4,896,721

Water Utilities — 0.2%
American Water Capital Corp., 4.45%, 06/01/32			1,350		1,301,052


Security		Par (000)		Value

Wireless Telecommunication Services — 1.0%
Altice France SA/France
11.50%, 02/01/27^(d)	EUR		100	$	92,188
5.13%, 07/15/29^(b)	USD		544		367,762
5.50%, 10/15/29^(b)			600		407,240
Cellnex Finance Co. SA, 1.25%, 01/15/29^(d)	EUR		100		96,865
Connect Finco SARL/Connect U.S. Finco LLC, 6.75%, 10/01/26^(b)	USD		612		599,928
Eutelsat SA, 1.50%, 10/13/28^(d)	EUR		100		80,309
Kenbourne Invest SA, 6.88%, 11/26/24^(b)	USD		233		113,151
Rogers Communications, Inc., 7.50%, 08/15/38^(f)			2,325		2,695,058
T-Mobile U.S., Inc.
2.55%, 02/15/31			500		425,909
4.50%, 04/15/50^(f)			500		433,399
Vmed O2 U.K. Financing I PLC, 4.50%, 07/15/31^(d)	GBP		100		107,283
Vodafone Group PLC, 4.25%, 09/17/50^(f)	USD		700		565,040


					5,984,132

Total Corporate Bonds — 64.8% (Cost: $386,899,775)					377,088,542


Floating Rate Loan Interests^(a)

Aerospace & Defense — 0.1%
Dynasty Acquisition Co., Inc., 2024 Term Loan B1, 08/24/28⁽ⁿ⁾			50		49,854
Ovation Parent, Inc., 2024 Term Loan, 03/27/31⁽ⁿ⁾			73		73,046
Peraton Corp.
2nd Lien Term Loan B1, (3-mo. CME Term SOFR + 7.85%), 13.18%, 02/01/29			303		303,472
Term Loan B, (1-mo. CME Term SOFR at 0.75% Floor + 3.85%), 9.18%, 02/01/28			150		149,768
Standard Aero Ltd., 2024 Term Loan B2, 08/24/28⁽ⁿ⁾			19		19,222


					595,362

Air Freight & Logistics — 0.0%
Clue Opco LLC, Term Loan B, (1-mo. CME Term SOFR at 0.75% Floor + 4.50%), 9.83%, 12/19/30			121		118,884


Automobile Components — 0.0%
Tenneco, Inc., 2022 Term Loan B, (3-mo. CME Term SOFR + 5.10%), 10.42%, 11/17/28			82		77,213


Beverages — 0.0%
Naked Juice LLC
2nd Lien Term Loan, (3-mo. CME Term SOFR + 6.10%), 11.40%, 01/24/30			20		16,106
Term Loan, (3-mo. CME Term SOFR at 0.50% Floor + 3.35%), 8.66%, 01/24/29			17		15,748


					31,854

Broadline Retail — 0.1%
StubHub Holdco Sub LLC, 2024 Extended Term Loan B, (3-mo. CME Term SOFR + 4.75%), 10.08%, 03/15/30			386		386,020


Building Products — 0.0%
Foundation Building Materials, Inc., 2024 Term Loan B2, (1-mo. CME Term SOFR + 4.00%), 9.31%, 01/29/31			55		55,193
White Cap Buyer LLC, Term Loan B, (1-mo. CME Term SOFR + 3.75%), 9.08%, 10/19/27			45		45,566


					100,759


16

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Chemicals — 0.1%
Aruba Investments Holdings LLC, 2020 2nd Lien Term Loan, (1-mo. CME Term SOFR at 0.75% Floor + 7.85%), 13.18%, 11/24/28^(c)	USD		64	$	63,756
Chemours Co., 2023 USD Term Loan B, (1-mo. CME Term SOFR at 0.50% Floor + 3.50%), 8.83%, 08/18/28			122		121,020
Discovery Purchaser Corp., Term Loan, (3-mo. CME Term SOFR at 0.50% Floor + 4.38%), 9.71%, 10/04/29			357		356,948
Herens U.S. Holdco Corp., USD Term Loan B, (3-mo. CME Term SOFR + 4.03%), 9.33%, 07/03/28			92		86,196
Momentive Performance Materials Inc., 2023 Term Loan, (1-mo. CME Term SOFR + 4.50%), 9.83%, 03/29/28			148		144,837


					772,757

Commercial Services & Supplies — 0.1%
Champions Financing, Inc., 2024 Term Loan B, (3-mo. CME Term SOFR + 4.75%), 10.07%, 02/23/29^(c)			153		153,383
PECF USS Intermediate Holding III Corp., Term Loan B, (3-mo. CME Term SOFR at 0.50% Floor + 4.51%), 9.82%, 12/15/28			93		70,360
TruGreen LP, 2020 2nd Lien Term Loan, (3-mo. CME Term SOFR at 0.75% Floor + 8.76%), 14.07%, 11/02/28			41		31,998


					255,741

Communications Equipment — 0.0%
Viasat, Inc., 2023 Term Loan, (1-mo. CME Term SOFR + 4.61%), 9.93%, 05/30/30			140		135,004


Construction & Engineering — 0.1%
Brand Industrial Services, Inc., 2023 Term Loan B, (3- mo. CME Term SOFR at 0.50% Floor + 5.50%), 10.81%, 08/01/30			592		594,068
Groundworks, LLC⁽ⁿ⁾
2024 Delayed Draw Term Loan, 03/14/31			14		14,131
2024 Term Loan, 03/14/31			77		76,778


					684,977

Construction Materials — 0.0%
BCPE Empire Holdings, Inc., 2024 Term Loan, (1-mo. CME Term SOFR at 0.50% Floor + 4.00%), 9.33%, 12/11/28			78		78,034
Chariot Buyer LLC, 2024 Incremental Term Loan B, (1-mo. CME Term SOFR at 0.50% Floor + 3.75%), 9.08%, 11/03/28			99		99,124


					177,158

Consumer Finance — 0.0%
Sabre GLBL, Inc.
2021 Term Loan B1, (1-mo. CME Term SOFR + 3.61%), 8.94%, 12/17/27			46		38,680
2021 Term Loan B2, (1-mo. CME Term SOFR + 3.61%), 8.94%, 12/17/27			72		60,951


					99,631

Containers & Packaging — 0.0%
Trident TPI Holdings, Inc., 2023 USD Term Loan, (3-mo. CME Term SOFR at 0.50% Floor + 4.50%), 9.81%, 09/15/28			92		91,694


Security		Par (000)		Value

Diversified Consumer Services — 0.2%
Ascend Learning LLC
2021 2nd Lien Term Loan, (1-mo. CME Term SOFR + 5.85%), 11.18%, 12/10/29	USD		83	$	81,522
2021 Term Loan, (1-mo. CME Term SOFR + 3.60%), 8.93%, 12/11/28			105		104,701
OMNIA Partners LLC, 2024 Term Loan B, (3-mo. CME Term SOFR + 3.75%), 9.07%, 07/25/30			37		36,983
PG Investment Co. 59 SARL, Term Loan B, 02/24/31^(c)(n)			158		158,198
Wand NewCo 3, Inc., 2024 Term Loan B, (1-mo. CME Term SOFR + 3.75%), 9.08%, 01/30/31			496		497,161


					878,565

Diversified Telecommunication Services — 0.1%
Connect Finco SARL, 2024 Extended Term Loan B, 09/13/29⁽ⁿ⁾			101		99,256
Frontier Communications Holdings LLC, 2021 1st Lien Term Loan, (1-mo. CME Term SOFR + 3.86%), 9.19%, 10/08/27			143		142,117
Level 3 Financing, Inc.^(c)
2024 Extended Term Loan B1, (1-week CME Term SOFR at 2.00% Floor + 6.56%), 11.81%, 04/15/29			38		37,577
2024 Extended Term Loan B2, (1-week CME Term SOFR at 2.00% Floor + 6.56%), 11.81%, 04/15/30			38		37,853
Lumen Technologies, Inc., 2024 Term Loan A, 06/01/28⁽ⁿ⁾			47		39,177
Zayo Group Holdings, Inc., USD Term Loan, (1-mo. CME Term SOFR + 3.00%), 8.44%, 03/09/27			10		9,151


					365,131

Electronic Equipment, Instruments & Components — 0.0%
Roper Industrial Products Investment Co., 2023 USD Term Loan, (3-mo. CME Term SOFR at 0.50% Floor + 4.00%), 9.30%, 11/22/29			66		66,628


Energy Equipment & Services — 0.0%
Lealand Finance Co. BV, 2020 Make Whole Term Loan, (1-mo. CME Term SOFR + 3.11%), 8.44%, 06/28/24^(c)			8		4,177


Entertainment — 0.0%
Motion Finco SARL, 2024 USD Term Loan B, 11/12/29⁽ⁿ⁾			116		115,738


Financial Services — 0.0%
Deerfield Dakota Holding LLC
2020 USD Term Loan B, (3-mo. CME Term SOFR at 1.00% Floor + 3.75%), 9.06%, 04/09/27			33		32,988
2021 USD 2nd Lien Term Loan, (3-mo. CME Term SOFR + 7.01%), 12.32%, 04/07/28			145		144,456


					177,444

Food Products — 0.0%
Chobani LLC, 2023 Incremental Term Loan, (1-mo. CME Term SOFR + 3.75%), 9.08%, 10/25/27			148		148,370


S C H E D U L E O F I N V E S T M E N T S		17

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Health Care Equipment & Supplies — 0.1%
Bausch & Lomb Corp., 2023 Incremental Term Loan, (1-mo. CME Term SOFR + 4.00%), 9.33%, 09/29/28	USD		128	$	128,115
Bausch and Lomb Corp., Term Loan, (1-mo. CME Term SOFR at 0.50% Floor + 3.35%), 8.68%, 05/10/27			285		281,199


					409,314

Health Care Providers & Services — 0.1%
CNT Holdings I Corp., 2020 Term Loan, (3-mo. CME Term SOFR at 0.75% Floor + 3.50%), 8.82%, 11/08/27			129		129,837
LifePoint Health, Inc., 2023 Term Loan B, (3-mo. CME Term SOFR + 5.76%), 11.09%, 11/16/28			68		67,981
Phoenix Newco, Inc., 2021 1st Lien Term Loan, (1-mo. CME Term SOFR at 0.50% Floor + 3.36%), 8.69%, 11/15/28			60		59,962
Quorum Health Corp., 2020 Term Loan, (3-mo. CME Term SOFR at 1.00% Floor + 8.35%), 13.68%, 04/29/25			117		70,158
Star Parent, Inc., Term Loan B, (3-mo. CME Term SOFR + 4.00%), 9.31%, 09/27/30			238		236,250
Surgery Center Holdings, Inc., 2023 Term Loan, (1-mo. CME Term SOFR + 3.50%), 8.83%, 12/19/30			68		67,954


					632,142

Health Care Technology — 0.6%
AthenaHealth Group, Inc., 2022 Term Loan B, (1-mo. CME Term SOFR at 0.50% Floor + 3.25%), 8.58%, 02/15/29			943		932,884
Cotiviti, Inc., 2024 Fixed Term Loan B, 02/21/31⁽ⁿ⁾			1,666		1,668,083
Gainwell Acquisition Corp., Term Loan B, (3-mo. CME Term SOFR + 4.10%), 9.41%, 10/01/27			298		284,130
Verscend Holding Corp., 2021 Term Loan B, (1-mo. CME Term SOFR + 4.11%), 9.44%, 08/27/25			620		620,343


					3,505,440

Household Durables — 0.1%
Hunter Douglas, Inc., USD Term Loan B1, (3-mo. CME Term SOFR + 3.50%), 8.82%, 02/26/29			145		142,510
Sunset Debt Merger Sub, Inc., 2021 Term Loan B, (1-mo. CME Term SOFR + 4.11%), 9.44%, 10/06/28			279		255,791


					398,301

Industrial Conglomerates — 0.0%
Chromalloy Corp., 2024 Term Loan B, 03/27/31⁽ⁿ⁾			172		171,283


Insurance⁽ⁿ⁾— 0.2%
Truist Insurance Holdings LLC
1st Lien Term Loan, 03/24/31			296		295,506
2nd Lien Term Loan, 03/08/32			801		805,005


					1,100,511

IT Services — 0.0%
Project Alpha Intermediate Holding, Inc., 2023 1st Lien Term Loan B, (3-mo. CME Term SOFR at 0.50% Floor + 4.75%), 10.06%, 10/28/30			59		59,541


Leisure Products — 0.0%
Peloton Interactive, Inc., Term Loan, (6-mo. CME Term SOFR + 7.10%), 12.48%, 05/25/27			70		69,976


Machinery — 0.3%
SPX Flow, Inc., 2022 Term Loan, (1-mo. CME Term SOFR + 4.60%), 9.93%, 04/05/29			252		252,605
Titan Acquisition Ltd./Canada 2018 Term Loan B, (1-mo. CME Term SOFR + 3.11%), 8.44%, 03/28/25			459		458,876


Security		Par (000)		Value

Machinery (continued)
Titan Acquisition Ltd./Canada (continued)
2024 Term Loan B, 02/01/29⁽ⁿ⁾	USD		168	$	168,349
TK Elevator U.S. Newco, Inc., USD Term Loan B, 04/30/30⁽ⁿ⁾			537		538,564
Wec US Holdings Ltd., 2024 Term Loan, (1-mo. CME Term SOFR + 2.75%), 8.08%, 01/27/31			82		81,881


					1,500,275

Media — 0.3%
AVSC Holding Corp., 2018 2nd Lien Term Loan, (1-mo. CME Term SOFR at 1.00% Floor + 7.36%), 12.69%, 09/01/25			156		146,977
Clear Channel Outdoor Holdings, Inc., 2024 Term Loan, (1-mo. CME Term SOFR + 4.11%), 9.44%, 08/23/28			308		307,048
Directv Financing LLC, 2024 Term Loan, (1-mo. CME Term SOFR at 0.75% Floor + 5.11%), 10.44%, 08/02/29			304		303,397
Morgan Stanley & Co. International PLC, 2024 CCIBV Fixed Term Loan^(c)(i)(n)			636		632,820
Radiate Holdco LLC, 2021 Term Loan B, (1-mo. CME Term SOFR at 0.75% Floor + 3.36%), 8.69%, 09/25/26			160		133,571


					1,523,813

Metals & Mining — 0.0%
Morgan Stanley & Co International PLC, 2024 Term Loan B, 03/25/31⁽ⁱ⁾⁽ⁿ⁾			128		128,241


Oil, Gas & Consumable Fuels — 0.2%
Ecopetrol SA, 2023 Term Loan, (6-mo. CME Term SOFR + 4.75%), 10.00%, 09/06/30^(c)			150		154,500
Freeport LNG Investments LLLP, Term Loan B, (3-mo. CME Term SOFR + 3.50%), 9.08%, 12/21/28			65		64,270
M6 ETX Holdings II Midco LLC, Term Loan B, (1-mo. CME Term SOFR at 0.50% Floor + 4.60%), 9.93%, 09/19/29			77		77,409
New Fortress Energy, Inc., Term Loan, (3-mo. CME Term SOFR at 0.75% Floor + 5.00%), 10.32%, 10/27/28			641		641,996
NGL Energy Operating LLC, 2024 Term Loan B, (1-mo. CME Term SOFR + 4.50%), 9.83%, 02/02/31			110		110,220


					1,048,395

Passenger Airlines — 0.1%
AAdvantage Loyalty IP Ltd., 2021 Term Loan, (3-mo. CME Term SOFR at 0.75% Floor + 5.01%), 10.33%, 04/20/28			230		238,287


Personal Care Products — 0.0%
KDC/ONE Development Corp., Inc., 2023 USD Term Loan B, (1-mo. CME Term SOFR + 5.00%), 10.33%, 08/15/28			120		120,131


Pharmaceuticals — 0.0%
Amneal Pharmaceuticals LLC, 2023 Term Loan B, (1- mo. CME Term SOFR + 5.50%), 10.83%, 05/04/28			48		47,524


Professional Services — 0.0%
CoreLogic, Inc., Term Loan, (1-mo. CME Term SOFR at 0.50% Floor + 3.61%), 8.94%, 06/02/28			85		83,039
Galaxy U.S. Opco, Inc., Term Loan, (3-mo. CME Term SOFR at 0.50% Floor + 4.75%), 10.06%, 04/29/29^(c)			138		124,771


					207,810


18

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Real Estate Management & Development — 0.0%
Cushman & Wakefield U.S. Borrower LLC, 2023 Term Loan B, (1-mo. CME Term SOFR at 0.50% Floor + 4.00%), 9.33%, 01/31/30^(c)	USD		50	$	50,075


Software — 0.5%
Applied Systems, Inc., 2024 2nd Lien Term Loan, (3- mo. CME Term SOFR + 5.25%), 10.56%, 02/23/32			122		126,117
Boxer Parent Co., Inc., 2023 USD Term Loan, (1-mo. CME Term SOFR + 4.25%), 9.58%, 12/29/28			166		166,517
Cloud Software Group, Inc.
2022 USD Term Loan B, (3-mo. CME Term SOFR + 4.60%), 9.91%, 03/30/29			318		315,948
2024 Term Loan, 03/21/31⁽ⁿ⁾			212		210,544
Cloudera, Inc., 2021 Second Lien Term Loan, (1-mo. CME Term SOFR + 6.10%), 11.43%, 10/08/29			234		231,305
Ellucian Holdings, Inc., 2024 Term Loan B, (1-mo. CME Term SOFR + 3.60%), 8.93%, 10/09/29			166		166,939
Genesys Cloud Services Holdings II LLC, Term Loan B, (1-mo. CME Term SOFR + 3.86%), 9.19%, 12/01/27			124		124,388
McAfee Corp., 2022 USD Term Loan B, (1-mo. CME Term SOFR + 3.85%), 9.18%, 03/01/29			91		90,614
MH Sub I LLC
2021 2nd Lien Term Loan, (1-mo. CME Term SOFR + 6.25%), 11.58%, 02/23/29			35		33,587
2023 Term Loan, (1-mo. CME Term SOFR at 0.50% Floor + 4.25%), 9.58%, 05/03/28			393		390,601
Planview Parent, Inc., 2nd Lien Term Loan, (3-mo. CME Term SOFR at 0.75% Floor + 7.35%), 12.65%, 12/18/28^(c)			103		99,395
Polaris Newco LLC, USD Term Loan B, (1-mo. CME Term SOFR + 4.26%), 9.57%, 06/02/28			195		193,459
Proofpoint, Inc., 1st Lien Term Loan, 08/31/28⁽ⁿ⁾			84		84,001
RealPage, Inc., 1st Lien Term Loan, (1-mo. CME Term SOFR + 3.11%), 8.44%, 04/24/28			214		208,541
Sovos Compliance LLC, 2021 Term Loan, (1-mo. CME Term SOFR at 0.50% Floor + 4.61%), 9.94%, 08/11/28			116		115,010
UKG, Inc., 2021 2nd Lien Term Loan, (3-mo. CME Term SOFR + 5.35%), 10.68%, 05/03/27			128		128,626


					2,685,592

Transportation Infrastructure — 0.0%
Apple Bidco LLC, 2022 Incremental Term Loan, (1-mo. CME Term SOFR at 0.50% Floor + 3.50%), 8.83%, 09/22/28			32		31,837
Brown Group Holding LLC, 2022 Incremental Term Loan B2, (3-mo. CME Term SOFR at 0.50% Floor + 3.00%), 8.16%, 07/02/29			41		40,979


					72,816


Security		Par (000)		Value

Wireless Telecommunication Services — 0.1%
Altice France SA/France, 2023 USD Term Loan B14, (3-mo. CME Term SOFR + 5.50%), 10.81%, 08/15/28	USD		93	$	73,339
Digicel International Finance Ltd., 2024 Term Loan, (3-mo. CME Term SOFR + 5.15%), 10.47%, 05/25/27^(c)			385		371,977


					445,316


Total Floating Rate Loan Interests — 3.4% (Cost: $19,577,929)					19,697,890


Foreign Agency Obligations

Bahrain — 0.0%
Bahrain Government International Bond, 5.45%, 09/16/32^(d)			200		183,188


Canada — 1.1%
CDP Financial, Inc., 5.60%, 11/25/39^(b)			5,890		6,200,651


Colombia — 0.1%
Colombia Government International Bond
4.50%, 01/28/26^(f)			300		292,650
3.88%, 04/25/27			200		188,100
3.13%, 04/15/31			200		159,500
8.00%, 04/20/33^(f)			200		211,200


					851,450

Dominican Republic — 0.1%
Dominican Republic International Bond
6.88%, 01/29/26^(d)			115		116,092
5.95%, 01/25/27^(d)			228		226,632
4.50%, 01/30/30^(b)			226		205,321
7.05%, 02/03/31^(b)			150		155,344


					703,389

Egypt — 0.0%
Egypt Government International Bond, 7.50%, 02/16/61^(b)			219		157,133


Guatemala — 0.1%
Guatemala Government Bond^(b)
5.25%, 08/10/29			200		193,661
5.38%, 04/24/32			200		192,160


					385,821

Hungary — 0.0%
Hungary Government International Bond, 5.38%, 09/12/33^(d)	EUR		66		75,093


Ivory Coast — 0.1%
Ivory Coast Government International Bond, 6.38%, 03/03/28^(d)	USD		400		394,750


Morocco — 0.0%
Morocco Government International Bond, 2.38%, 12/15/27^(b)			200		178,250


S C H E D U L E O F I N V E S T M E N T S		19

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Oman — 0.1%
Oman Government International Bond^(d)
6.50%, 03/08/47	USD		228	$	229,852
6.75%, 01/17/48			200		204,875


					434,727

Romania — 0.1%
Romanian Government International Bond
5.25%, 11/25/27^(b)			102		100,565
2.50%, 02/08/30^(d)	EUR		222		211,812
2.12%, 07/16/31^(d)			226		199,323


					511,700

Senegal — 0.0%
Senegal Government International Bond, 6.25%, 05/23/33^(d)(f)	USD		200		170,625


South Africa — 0.1%
Republic of South Africa Government International Bond
4.85%, 09/30/29			200		179,250
5.88%, 04/20/32^(f)			200		180,250


					359,500

Ukraine — 0.0%
Ukraine Government International Bond^(a)(l)(m)
7.75%, 09/01/27^(d)			385		130,515
7.25%, 03/15/35^(b)			200		58,100


					188,615


Total Foreign Agency Obligations — 1.8% (Cost: $10,840,864)					10,794,892


Municipal Bonds

California — 1.1%
City of Los Angeles California, GO, Series A, Sustainability Bonds, 5.00%, 09/01/42			2,000		1,990,033
East Bay Municipal Utility District Water System Revenue, RB, BAB, 5.87%, 06/01/40			1,900		2,044,581
Oxnard Union High School District, Refunding GO, (BAM), 3.18%, 08/01/43			1,600		1,255,280
State of California, Refunding GO, 5.13%, 03/01/38			1,000		1,009,589


					6,299,483

Georgia — 0.4%
Municipal Electric Authority of Georgia, Refunding RB, BAB, 7.06%, 04/01/57^(e)			1,884		2,136,348


Hawaii — 0.3%
City & County Honolulu HI Wastewater System Revenue, Refunding RB, Series A, 2.62%, 07/01/45			1,000		687,194
State of Hawaii, GO, Series GK, 6.15%, 10/01/38			1,000		1,090,372


					1,777,566

Illinois — 0.3%
State of Illinois, GO, 5.10%, 06/01/33			2,000		1,983,186


Massachusetts — 0.1%
University of Massachusetts Building Authority, Refunding RB, Series 3, 3.43%, 11/01/40			500		419,418


New York — 1.2%
Metropolitan Transportation Authority, RB, BAB, 7.34%, 11/15/39			1,295		1,584,540
New York City Industrial Development Agency, Refunding RB, (AGM), 3.19%, 03/01/40			165		127,858


Security		Par (000)		Value

New York (continued)
New York City Municipal Water Finance Authority, Refunding RB, BAB, 5.72%, 06/15/42	USD		1,390	$	1,444,925
New York State Dormitory Authority, RB, BAB
Series D, 5.60%, 03/15/40			1,900		1,916,636
Series F, 5.63%, 03/15/39			1,100		1,122,333
Port Authority of New York & New Jersey, RB, Series 159, 6.04%, 12/01/29			780		833,615


					7,029,907


Total Municipal Bonds — 3.4% (Cost: $19,056,405)					19,645,908


Non-Agency Mortgage-Backed Securities

Collateralized Mortgage Obligations — 9.8%
Alternative Loan Trust
Series 2005-64CB, Class 1A15, 5.50%, 12/25/35			358		308,572
Series 2006-OA21, Class A1, (1-mo. Term SOFR + 0.30%), 5.63%, 03/20/47^(a)			341		273,774
Series 2007-OA10, Class 2A1, (1-mo. Term SOFR + 0.61%), 5.94%, 09/25/47^(a)			3,904		555,619
Banc of America Funding Trust, Series 2007-2, Class 1A2, 6.00%, 03/25/37			213		160,186
Bravo Residential Funding Trust^(a)(b)
Series 2021-NQM1, Class A1, 0.94%, 02/25/49			676		597,060
Series 2023-NQM3, Class A1, 4.85%, 09/25/62			440		429,007
Series 2023-NQM4, Class A1, 6.44%, 05/25/63			1,365		1,372,810
Chase Home Lending Mortgage Trust, Series 2019- ATR1, Class A12, 6.50%, 04/25/49^(a)(b)			485		479,858
CIM Trust^(a)(b)
Series 2023-I1, Class A1, 6.03%, 04/25/58			1,230		1,214,778
Series 2023-I2, Class A1, 6.64%, 12/25/67			1,180		1,179,968
COLT Mortgage Loan Trust^(b)
Series 2020-2, Class M1, 5.25%, 03/25/65^(a)			3,050		2,964,241
Series 2020-3, Class M1, 3.36%, 04/27/65^(a)			3,820		3,489,262
Series 2022-1, Class A1, 4.55%, 04/25/67^(a)			1,501		1,500,014
Series 2022-7, Class A1, 5.16%, 04/25/67^(a)			1,947		1,916,581
Series 2022-9, Class A1, 6.79%, 12/25/67^(a)			317		318,047
Series 2023-2, Class A1, 6.60%, 07/25/68			1,425		1,434,996
Credit Suisse Mortgage Capital Certificates Trust, Series 2022-NQM5, Class A1, 5.17%, 05/25/67^(a)(b)			2,646		2,622,208
Deephaven Residential Mortgage Trust, Series 2022-2, Class A1, 4.30%, 03/25/67^(a)(b)			258		246,340
Ellington Financial Mortgage Trust^(a)(b)
Series 2020-1, Class M1, 5.24%, 05/25/65			1,500		1,472,694
Series 2021-2, Class A1, 0.93%, 06/25/66			195		156,276
Flagstar Mortgage Trust, Series 2021-4, Class A1, 2.50%, 06/01/51^(a)(b)			2,385		1,910,820
GCAT Trust, Series 2022-NQM3, Class A1, 4.35%, 04/25/67^(a)(b)			1,117		1,080,242
GS Mortgage-Backed Securities Corp. Trust, Series 2022-PJ2, Class A4, 2.50%, 06/25/52^(a)(b)			1,031		826,317
GS Mortgage-Backed Securities Trust, Series 2021- PJ2, Class A2, 2.50%, 11/25/51^(a)(b)			899		720,194
GSR Mortgage Loan Trust, Series 2007-4F, Class 3A1, 6.00%, 07/25/37			79		51,085
Homeward Opportunities Fund Trust, Series 2022-1, Class A1, 5.08%, 07/25/67^(b)			1,175		1,159,298
JP Morgan Mortgage Trust
Series 2006-S3, Class 1A12, 6.50%, 08/25/36			40		12,975
Series 2022-DSC1, Class A1, 4.75%, 01/25/63^(a)(b)			458		437,016


20

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Collateralized Mortgage Obligations (continued)
JP Morgan Mortgage Trust (continued)
Series 2022-INV3, Class A3B, 3.00%, 09/25/52^(a)(b)	USD		721	$	599,773
Series 2023-DSC1, Class A1, 4.63%, 07/25/63^(a)(b)			322		307,417
Mello Mortgage Capital Acceptance, Series 2022-INV2, Class A3, 3.00%, 04/25/52^(a)(b)			762		636,176
Merrill Lynch Mortgage Investors Trust, Series 2006-A3, Class 3A1, 5.35%, 05/25/36^(a)			118		78,699
MFA Trust^(a)(b)
Series 2021-NQM1, Class M1, 2.31%, 04/25/65			2,750		2,120,062
Series 2023-NQM1, Class A1, 5.75%, 11/25/67			827		815,801
Series 2023-NQM3, Class A1, 6.62%, 07/25/68			1,649		1,657,522
Mill City Mortgage Trust, Series 2023-NQM2, Class A1, 6.24%, 12/25/67^(a)(b)			1,742		1,737,400
OBX Trust^(b)
Class A1A, 6.57%, 06/25/63^(a)			1,519		1,532,321
Series 2022-INC3, Class A1, 3.00%, 02/25/52^(a)			675		565,123
Series 2022-NQM9, Class A1A, 6.45%, 09/25/62^(a)			505		505,799
Series 2023-NQM1, Class A1, 6.12%, 11/25/62^(a)			679		678,451
Series 2023-NQM6, Class A1, 6.52%, 07/25/63			1,282		1,292,754
PRKCM Trust, Series 2023-AFC2, Class A1, 6.48%, 06/25/58^(b)			1,517		1,514,009
RCKT Mortgage Trust, Series 2022-2, Class A1, 3.00%, 02/25/52^(a)(b)			1,010		843,104
SG Residential Mortgage Trust, Series 2022-2, Class A1, 5.35%, 08/25/62^(a)(b)			655		650,279
Spruce Hill Mortgage Loan Trust, Series 2022-SH1, Class A1A, 4.10%, 07/25/57^(a)(b)			684		645,318
STAR Trust, Series 2021-1, Class M1, 2.36%, 05/25/65^(a)(b)			2,050		1,620,481
Starwood Mortgage Residential Trust, Series 2020-3, Class M1, 3.54%, 04/25/65^(a)(b)			2,000		1,688,096
Verus Securitization Trust^(b)
Series 2022-3, Class A1, 4.13%, 02/25/67			2,749		2,573,531
Series 2022-7, Class A1, 5.15%, 07/25/67^(a)			1,593		1,580,809
Series 2022-INV2, Class A1, 6.79%, 10/25/67^(a)			461		463,805
Series 2023-1, Class A1, 5.85%, 12/25/67^(a)			924		918,163
Series 2023-5, Class A1, 6.48%, 06/25/68^(a)			1,330		1,335,032
Visio Trust, Series 2023-2, Class A1, 6.60%, 10/25/58^(b)			1,409		1,415,734


					56,665,897

Commercial Mortgage-Backed Securities — 4.5%
3650R Commercial Mortgage Trust, Series 2021-PF1, Class A5, 2.52%, 11/15/54			1,250		1,024,813
BAMLL Commercial Mortgage Securities Trust, Series 2015-200P, Class C, 3.60%, 04/14/33^(a)(b)			4,170		3,981,743
Bayview Commercial Asset Trust, Series 2007-2A, Class A1, (1-mo. Term SOFR + 0.52%), 5.85%, 07/25/37^(a)(b)			597		545,688
BX Commercial Mortgage Trust^(a)(b)
Series 2021-CIP, Class A, (1-mo. Term SOFR + 1.04%), 6.36%, 12/15/38			605		598,572
Series 2021-SOAR, Class A, (1-mo. Term SOFR + 0.78%), 6.11%, 06/15/38			1,492		1,481,581
Series 2021-XL2, Class A, (1-mo. Term SOFR + 0.80%), 6.13%, 10/15/38			391		388,033
Series 2022-LP2, Class A, (1-mo. Term SOFR + 1.01%), 6.34%, 02/15/39			1,417		1,409,860
Series 2024-MF, Class C, (1-mo. Term SOFR + 1.94%), 7.27%, 02/15/39			510		507,450


Security		Par (000)		Value

Commercial Mortgage-Backed Securities (continued)
BX Commercial Mortgage Trust^(a)(b)(continued)
Series 2024-XL4, Class C, (1-mo. Term SOFR + 2.19%), 7.52%, 02/15/39	USD		100	$	99,969
BX Trust^(a)(b)
Series 2021-LBA, Class AJV, (1-mo. Term SOFR + 0.91%), 6.24%, 02/15/36			1,690		1,682,606
Series 2022 VAMF, Class A, (1-mo. Term SOFR + 0.85%), 6.18%, 01/15/39			1,300		1,288,625
Series 2022-GPA, Class A, (1-mo. Term SOFR + 2.17%), 7.49%, 08/15/39			645		646,614
Series 2024-BIO, Class C, (1-mo. Term SOFR + 2.64%), 7.97%, 02/15/41			240		239,925
Series 2024-CNYN, Class C, (1-mo. Term SOFR + 1.94%), 1.00%, 04/15/29^(g)			800		799,000
Series 2024-PAT, Class B, (1-mo. Term SOFR + 3.04%), 8.29%, 03/15/26			170		169,907
Cantor Commercial Real Estate Lending, Series 2019- CF2, Class A5, 2.87%, 11/15/52			550		478,636
Cold Storage Trust, Series 2020-ICE5, Class A, (1-mo. Term SOFR + 1.01%), 6.33%, 11/15/37^(a)(b)			238		237,363
Credit Suisse Mortgage Capital Certificates Trust, Series 2020-FACT, Class D, (1-mo. Term SOFR + 4.07%), 9.40%, 10/15/37^(a)(b)			900		854,307
CSMC BHAR, Series 2021-BHAR, Class C, (1-mo. Term SOFR + 2.11%), 7.44%, 11/15/38^(a)(b)			300		297,569
DC Trust, Series 2024-HLTN, Class C, 1.00%, 04/13/28^(a)(b)(g)			220		219,981
Extended Stay America Trust, Series 2021-ESH, Class D, (1-mo. Term SOFR + 2.36%), 7.69%, 07/15/38^(a)(b)			1,764		1,762,308
GS Mortgage Securities Trust, Series 2019-GC38, Class AAB, 3.84%, 02/10/52			891		860,302
JP Morgan Chase Commercial Mortgage Securities Trust, Series 2022-ACB, Class A, (30-day Avg SOFR + 1.40%), 6.72%, 03/15/39^(a)(b)			1,700		1,695,484
Lehman Brothers Small Balance Commercial Mortgage Trust, Series 2006-1A, Class B, (1-mo. Term SOFR + 1.11%), 6.44%, 04/25/31^(a)(b)			16		15,568
Morgan Stanley Bank of America Merrill Lynch Trust, Series 2015-C22, Class A4, 3.31%, 04/15/48			1,200		1,169,871
STWD Trust, Series 2021-FLWR, Class A, (1-mo. Term SOFR + 0.69%), 6.02%, 07/15/36^(a)(b)			1,207		1,194,930
UBS Commercial Mortgage Trust, Series 2019-C18, Class A4, 3.04%, 12/15/52			1,200		1,048,806
Wells Fargo Commercial Mortgage Trust, Series 2016- LC25, Class A4, 3.64%, 12/15/59			1,700		1,625,052


					26,324,563


Total Non-Agency Mortgage-Backed Securities — 14.3%
(Cost: $88,010,401)					82,990,460


Preferred Securities

Capital Trusts — 7.0%^(a)

Automobiles — 0.0%
Volkswagen International Finance NV, 3.88%^(d)(i)	EUR		100		99,809


Banks⁽ⁱ⁾— 6.1%
AIB Group PLC, 5.25%^(d)			200		214,147
Banco Bilbao Vizcaya Argentaria SA, 6.13%	USD		2,000		1,841,846
Banco Mercantil del Norte SA, 6.75%^(b)			200		198,688
Bank of America Corp., Series FF, 5.88%^(f)			3,500		3,446,459


S C H E D U L E O F I N V E S T M E N T S		21

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value

Banks (continued)
Bank of New York Mellon Corp., Series F, 4.63%^(f)	USD		2,750	$	2,597,248
Barclays PLC
4.38%			310		254,135
9.63%			640		678,657
BNP Paribas SA^(b)
4.63%			2,000		1,649,854
8.50%			265		276,992
Citigroup, Inc., Series AA, 7.63%			208		218,372
Goldman Sachs Group, Inc., Series R, 4.95%			333		327,497
HSBC Holdings PLC
4.70%			275		231,266
6.50%^(f)			1,090		1,066,729
6.00%^(f)			435		418,717
6.38%			1,000		992,921
ING Groep NV, Series NC10, 4.25%			1,500		1,138,032
JPMorgan Chase & Co., Series FF, 5.00%			2,500		2,491,834
Krung Thai Bank PCL/Cayman Islands, 4.40%^(d)			252		239,085
Lloyds Banking Group PLC
8.00%^(f)			200		201,373
6.75%			595		587,862
7.50%			1,750		1,743,004
NatWest Group PLC, 6.00%			1,575		1,537,973
Nordea Bank Abp, 6.13%^(b)			2,960		2,942,509
PNC Financial Services Group, Inc.
Series V, 6.20%			205		204,466
Series W, 6.25%^(f)			1,705		1,652,439
Rizal Commercial Banking Corp., 6.50%^(d)			200		196,563
U.S. Bancorp, Series J, 5.30%^(f)			1,900		1,819,071
UBS Group AG^(b)
4.88%			2,000		1,836,434
Series NC10, 9.25%			200		225,707
Series NC5, 9.25%			400		433,390
Wells Fargo & Co.
7.63%^(f)			300		320,612
Series S, 5.90%			3,390		3,375,683
Woori Bank, 4.25%^(d)			250		246,563


					35,606,128

Capital Markets — 0.2%
Charles Schwab Corp., Series H, 4.00%⁽ⁱ⁾			1,500		1,265,632


Diversified Telecommunication Services — 0.1%
Telefonica Europe BV, 6.14%^(d)(i)	EUR		200		223,613


Electric Utilities — 0.5%
Edison International, Series B, 5.00%⁽ⁱ⁾	USD		169		160,111
EDP - Energias de Portugal SA, 5.94%, 04/23/83^(d)	EUR		100		112,669
Electricite de France SA, 3.38%^(d)(i)			200		188,238
NextEra Energy Capital Holdings, Inc., 5.65%, 05/01/79	USD		2,750		2,630,176


					3,091,194

Independent Power and Renewable Electricity Producers^(b)(i)— 0.1%
NRG Energy, Inc., 10.25%			340		364,721
Vistra Corp., 7.00%			141		139,610


					504,331

Wireless Telecommunication Services — 0.0%
Vodafone Group PLC, 6.50%, 08/30/84^(d)	EUR		100		116,021


					40,906,728



Security		Shares		Value

Preferred Stocks — 0.3%^(a)(i)

Banks — 0.3%
Morgan Stanley, Series K, 5.85%			66,567		1,663,509


Financial Services — 0.0%
Federal National Mortgage Association, Series S, 8.25%			10,000		39,900


					1,703,409


Trust Preferred — 0.2%

Banks — 0.2%
Citigroup Capital XIII, 11.95%, 10/30/40^(a)			29,583		871,811


					871,811

Total Preferred Securities — 7.5%
(Cost: $44,950,777)					43,481,948


		Par (000)

U.S. Government Sponsored Agency Securities

Agency Obligations — 1.1%
Fannie Mae, 5.63%, 07/15/37^(f)	USD		1,600		1,765,577
Resolution Funding Corp. Principal Strip, 0.00%, 04/15/30^(k)			6,055		4,583,222


					6,348,799

Collateralized Mortgage Obligations — 4.8%
Fannie Mae REMICS
Series 2015-47, Class GL, 3.50%, 07/25/45			1,636		1,430,743
Series 2022-25, Class KL, 4.00%, 05/25/52			14,500		12,740,399
Freddie Mac REMICS
Series 4350, Class DY, 4.00%, 06/15/44			1,560		1,463,419
Series 4398, Class ZX, 4.00%, 09/15/54			11,215		9,833,165
Series 4549, Class TZ, 4.00%, 11/15/45			2,959		2,812,374


					28,280,100

Interest Only Collateralized Mortgage Obligations — 0.1%
Fannie Mae REMICS, Series 2012-47, Class NI, 4.50%, 04/25/42			782		128,341
Ginnie Mae^(a)
Series 2009-116, Class KS, (1-mo. Term SOFR + 6.36%), 1.03%, 12/16/39			568		41,390
Series 2011-52, Class NS, (1-mo. Term SOFR + 6.56%), 1.23%, 04/16/41			4,540		302,712


					472,443

Mortgage-Backed Securities^(f)— 14.0%
Fannie Mae Mortgage-Backed Securities
4.50%, 07/01/55			2,649		2,581,834
4.00%, 02/01/56 - 04/01/56			2,846		2,692,628
Freddie Mac Mortgage-Backed Securities, 4.50%, 03/01/47			534		524,016
Ginnie Mae Mortgage-Backed Securities, 5.50%, 08/15/33			24		23,971


22

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

(Percentages shown are based on Net Assets)


Security		Par (000)		Value


Mortgage-Backed Securities (continued)
Uniform Mortgage-Backed Securities
1.50%, 05/01/31	USD		5,875	$	5,349,713
5.00%, 08/01/34 - 04/11/54^(o)			21,335		21,119,319
4.50%, 06/01/37 - 04/11/54^(o)			11,634		11,264,558
5.50%, 12/01/37 - 04/11/54^(o)			23,129		23,142,394
6.00%, 12/01/38			194		200,966
3.00%, 02/01/52			1,920		1,652,579
3.50%, 04/01/52 - 04/01/53			4,008		3,619,691
4.00%, 05/01/52 - 09/01/52			4,001		3,736,822
6.50%, 10/01/53			5,320		5,435,073


					81,343,564


Total U.S. Government Sponsored Agency Securities — 20.0%
(Cost: $121,542,245)					116,444,906


U.S. Treasury Obligations
U.S. Treasury Bonds^(f)
3.00%, 11/15/44			33,795		27,062,402
2.50%, 02/15/46			57,350		41,475,699
2.75%, 11/15/47			2,000		1,494,375
U.S. Treasury Notes^(f)
5.00%, 10/31/25			26,000		26,073,125
3.63%, 05/31/28			1,900		1,851,832
4.88%, 10/31/28			7,800		7,995,914


Total U.S. Treasury Obligations — 18.2%
(Cost: $128,661,377)					105,953,347


Total Long-Term Investments — 150.5%
(Cost: $920,077,311)					875,962,780


		Shares


Short-Term Securities

Money Market Funds — 1.2%
BlackRock Liquidity Funds, T-Fund, Institutional Class, 5.19%^(p)(q)			7,145,875		7,145,875


Total Short-Term Securities — 1.2%
(Cost: $7,145,875)					7,145,875


Options Purchased — 0.0%
(Cost: $533)					141


Total Investments Before TBA Sale Commitments and Options Written — 151.7%
(Cost: $927,223,719)					883,108,796


Security		Par (000)			Value


TBA Sale Commitments

Mortgage-Backed Securities — (0.9)%
Uniform Mortgage-Backed Securities, 4.50%, 04/11/54^(o)	USD		(5,640	)	$	(5,370,534	)


Total TBA Sale Commitments — (0.9)%
(Proceeds: $(5,402,944))						(5,370,534	)


Options Written — (0.0)%
(Premiums Received: $(108))						(16	)


Total Investments, Net of TBA Sale Commitments and Options Written — 150.8%
(Cost: $921,820,667)						877,738,246
Liabilities in Excess of Other Assets — (50.8)%						(295,685,170	)


Net Assets — 100.0%					$	582,053,076

^(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)	Security is valued using significant unobservable inputs and is classified as Level 3 in the fair value hierarchy.

^(d)	This security may be resold to qualified foreign investors and foreign institutional buyers under Regulation S of the Securities Act of 1933.

^(e)	All or a portion of the security has been pledged and/or segregated as collateral in connection with outstanding exchange-traded options written.

^(f)	All or a portion of the security has been pledged as collateral in connection with outstanding reverse repurchase agreements.

^(g)	When-issued security.

^(h)	Payment-in-kind security which may pay interest/dividends in additional par/shares and/or in cash. Rates shown are the current rate and possible payment rates.

⁽ⁱ⁾	Perpetual security with no stated maturity date.

^(j)	Convertible security.

^(k)	Zero-coupon bond.

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

^(m)	Non-income producing security.

⁽ⁿ⁾	Represents an unsettled loan commitment at period end. Certain details associated with this purchase are not known prior to the settlement date, including coupon rate.

^(o)	Represents or includes a TBA transaction.

^(p)	Affiliate of the Trust.

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

For purposes of this report, industry and sector sub-classifications may differ from those utilized by the Trust for compliance purposes.


S C H E D U L E O F I N V E S T M E N T S		23

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Affiliates

Investments in issuers considered to be affiliate(s) of the Trust during the period ended March 31, 2024 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:


Affiliated Issuer	Value at 12/31/23		Purchases at Cost		Proceeds from Sales			Net Realized Gain (Loss)		Change in Unrealized Appreciation (Depreciation)		Value at 03/31/24		Shares Held at 03/31/24		Income		Capital Gain Distributions from Underlying Funds
BlackRock Liquidity Funds, T-Fund, Institutional Class	$	11,900,896	$	—	$	(4,755,021	)^(a)	$	—	$	—	$	7,145,875		7,145,875	$	98,306	$	—

^(a)

Represents net amount purchased (sold).

Reverse Repurchase Agreements

Counterparty

Interest

Rate

Trade

Date

Maturity

Date

^(a)

Face Value

Including

Accrued Interest

Type of Non-Cash Underlying

Collateral

Remaining

Contractual Maturity

of the Agreements

^(a)

BNP Paribas SA

5.38

%^(b)

09/05/23

Open

17,781,250

18,337,512

U.S. Treasury
Obligations

Open/Demand

BNP Paribas SA

5.38

^(b)

09/05/23

Open

26,909,269

27,756,553

U.S. Treasury
Obligations

Open/Demand

Nomura Securities International, Inc.

5.45

^(b)

09/05/23

Open

23,008,937

23,728,983

U.S. Treasury
Obligations

Open/Demand

Nomura Securities International, Inc.

5.45

^(b)

09/05/23

Open

1,495,000

1,541,648

U.S. Treasury
Obligations

Open/Demand

Nomura Securities International, Inc.

5.45

^(b)

10/06/23

Open

1,838,250

1,887,418

U.S. Treasury
Obligations

Open/Demand

BNP Paribas SA

5.38

^(b)

11/06/23

Open

26,097,500

26,673,291

U.S. Treasury
Obligations

Open/Demand

BNP Paribas SA

5.38

^(b)

11/06/23

Open

7,926,750

8,101,557

U.S. Treasury
Obligations

Open/Demand

U.S. Government
Sponsored

BNP Paribas SA

5.43

^(b)

01/05/24

Open

1,832,000

1,855,188

Agency Securities

Open/Demand

TD Securities (USA) LLC

5.49

^(b)

01/05/24

Open

2,913,750

2,951,075

Corporate Bonds

Open/Demand

BNP Paribas SA

5.42

^(b)

01/08/24

Open

415,250

420,439

Corporate Bonds

Open/Demand

BNP Paribas SA

5.42

^(b)

01/08/24

Open

2,433,750

2,464,162

Capital Trusts

Open/Demand

BNP Paribas SA

5.42

^(b)

01/08/24

Open

461,875

467,647

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

01/08/24

Open

291,727

295,413

Corporate Bonds

Open/Demand

BNP Paribas SA

5.37

^(b)

01/23/24

Open

138,510

139,915

Corporate Bonds

Open/Demand

BNP Paribas SA

5.42

^(b)

01/23/24

Open

213,469

215,654

Corporate Bonds

Open/Demand

BNP Paribas SA

5.49

^(b)

01/23/24

Open

500,917

506,112

Corporate Bonds

Open/Demand

BNP Paribas SA

5.39

^(b)

01/29/24

Open

1,238,400

1,249,896

Corporate Bonds

Open/Demand

BNP Paribas SA

5.44

^(b)

01/29/24

Open

99,440

100,372

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

01/29/24

Open

2,011,600

2,030,481

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.35

^(b)

01/29/24

Open

129,724

130,920

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

01/29/24

Open

1,839,687

1,857,050

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

01/29/24

Open

129,030

130,248

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

01/29/24

Open

132,460

133,710

Corporate Bonds

Open/Demand

BNP Paribas SA

4.75

^(b)

02/08/24

Open

913,500

919,768

Corporate Bonds

Open/Demand

BNP Paribas SA

5.15

^(b)

02/08/24

Open

58,449

58,884

Corporate Bonds

Open/Demand

BNP Paribas SA

5.18

^(b)

02/08/24

Open

951,250

958,367

Corporate Bonds

Open/Demand

BNP Paribas SA

5.30

^(b)

02/08/24

Open

299,500

301,793

Corporate Bonds

Open/Demand

BNP Paribas SA

5.30

^(b)

02/08/24

Open

409,200

412,333

Corporate Bonds

Open/Demand

BNP Paribas SA

5.35

^(b)

02/08/24

Open

1,035,881

1,043,886

Corporate Bonds

Open/Demand

BNP Paribas SA

5.37

^(b)

02/08/24

Open

101,700

102,489

Corporate Bonds

Open/Demand

BNP Paribas SA

5.37

^(b)

02/08/24

Open

3,176,250

3,200,887

Capital Trusts

Open/Demand

BNP Paribas SA

5.39

^(b)

02/08/24

Open

41,063

41,382

Corporate Bonds

Open/Demand

BNP Paribas SA

5.39

^(b)

02/08/24

Open

121,890

122,839

Corporate Bonds

Open/Demand

BNP Paribas SA

5.42

^(b)

02/08/24

Open

145,564

146,703

Corporate Bonds

Open/Demand

BNP Paribas SA

5.44

^(b)

02/08/24

Open

177,925

179,323

Corporate Bonds

Open/Demand

BNP Paribas SA

5.45

^(b)

02/08/24

Open

1,085,460

1,094,005

Capital Trusts

Open/Demand

BNP Paribas SA

5.45

^(b)

02/08/24

Open

113,256

114,148

Corporate Bonds

Open/Demand

BNP Paribas SA

5.45

^(b)

02/08/24

Open

176,030

177,416

Corporate Bonds

Open/Demand


24

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Reverse Repurchase Agreements (continued)

Counterparty

Interest

Rate

Trade

Date

Maturity

Date

^(a)

Face Value

Including

Accrued Interest

Type of Non-Cash Underlying

Collateral

Remaining

Contractual Maturity

of the Agreements

^(a)

BNP Paribas SA

5.45

%^(b)

02/08/24

Open

282,000

284,220

Capital Trusts

Open/Demand

BNP Paribas SA

5.45

^(b)

02/08/24

Open

104,089

104,908

Corporate Bonds

Open/Demand

BNP Paribas SA

5.45

^(b)

02/08/24

Open

417,500

420,787

Corporate Bonds

Open/Demand

BNP Paribas SA

5.48

^(b)

02/08/24

Open

136,160

137,238

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.25

^(b)

02/08/24

Open

164,304

165,550

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.35

^(b)

02/08/24

Open

429,876

433,198

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.35

^(b)

02/08/24

Open

196,075

197,590

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/08/24

Open

428,925

432,302

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/08/24

Open

138,819

139,912

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/08/24

Open

3,161,250

3,186,136

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/08/24

Open

408,125

411,338

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/08/24

Open

1,084,000

1,092,533

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/08/24

Open

2,786,250

2,808,184

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/08/24

Open

1,526,250

1,538,265

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/08/24

Open

961,250

968,817

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

4.50

^(b)

02/08/24

Open

85,250

85,804

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.35

^(b)

02/08/24

Open

181,766

183,170

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.35

^(b)

02/08/24

Open

201,631

203,189

Foreign Agency
Obligations

Open/Demand

Nomura Securities International, Inc.

5.35

^(b)

02/08/24

Open

480,000

483,709

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.40

^(b)

02/08/24

Open

519,893

523,948

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

940,000

947,441

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

379,114

382,115

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

953,750

961,299

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

320,000

322,533

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

998,750

1,006,656

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

109,378

110,243

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

87,538

88,230

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

267,000

269,113

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/08/24

Open

90,169

90,882

Corporate Bonds

Open/Demand

TD Securities (USA) LLC

5.48

^(b)

02/08/24

Open

5,500,000

5,543,536

Corporate Bonds

Open/Demand

TD Securities (USA) LLC

5.49

^(b)

02/08/24

Open

3,954,300

3,985,658

Corporate Bonds

Open/Demand

U.S. Bancorp Investments, Inc.

5.31

^(b)

02/08/24

Open

951,250

958,546

Corporate Bonds

Open/Demand

BNP Paribas SA

5.45

^(b)

02/13/24

Open

190,750

192,107

Corporate Bonds

Open/Demand

U.S. Bancorp Investments, Inc.

5.31

^(b)

02/13/24

Open

537,625

541,352

Corporate Bonds

Open/Demand

U.S. Bancorp Investments, Inc.

5.31

^(b)

02/13/24

Open

2,737,500

2,756,478

Corporate Bonds

Open/Demand

BNP Paribas SA

5.45

^(b)

02/14/24

Open

161,359

162,482

Corporate Bonds

Open/Demand

Goldman Sachs & Co. LLC

5.45

^(b)

02/16/24

Open

136,159

137,086

Corporate Bonds

Open/Demand

BNP Paribas SA

5.45

^(b)

02/22/24

Open

1,404,434

1,412,513

Corporate Bonds

Open/Demand

BNP Paribas SA

5.47

^(b)

02/22/24

Open

292,315

294,003

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

02/22/24

Open

331,626

333,545

Corporate Bonds

Open/Demand

U.S. Bancorp Investments, Inc.

5.31

^(b)

02/22/24

Open

280,000

281,569

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.32

^(b)

03/08/24

Open

124,198

124,583

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.32

^(b)

03/08/24

Open

392,690

393,909

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.32

^(b)

03/08/24

Open

271,397

272,240

Corporate Bonds

Open/Demand


S C H E D U L E O F I N V E S T M E N T S			25

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Reverse Repurchase Agreements (continued)

Counterparty

Interest

Rate

Trade

Date

Maturity

Date

^(a)

Face Value

Including

Accrued Interest

Type of Non-Cash Underlying

Collateral

Remaining

Contractual Maturity

of the Agreements

^(a)

Nomura Securities International, Inc.

5.32

%^(b)

03/08/24

Open

102,265

102,582

Corporate Bonds

Open/Demand

U.S. Bancorp Investments, Inc.

5.31

^(b)

03/08/24

Open

526,250

527,880

Corporate Bonds

Open/Demand

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

559,036

560,641

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

1,594,688

1,599,267

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

255,324

256,057

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

158,491

158,946

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

1,836,907

1,842,181

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

1,627,862

1,632,536

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

2,523,273

2,530,517

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

5,212,139

5,227,104

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

5,278,675

5,293,830

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

195,211

195,771

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Canadian Imperial Bank of Commerce

5.44

03/12/24

04/11/24

23,304

23,370

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,688,815

1,693,672

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

511,742

513,214

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

17,408

17,458

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

613,432

615,196

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

2,517,667

2,524,908

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,988,545

1,994,265

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,787,874

1,793,016

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

784,818

787,076

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,472,934

1,477,170

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

5,203,794

5,218,762

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,801,333

1,806,514

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

5,736,284

5,752,784

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

322,160

323,087

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,603,272

1,607,884

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

260,289

261,038

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

987,523

990,364

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,715,986

1,720,922

Agency Securities

Up to 30 Days

U.S. Government
Sponsored

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,564,766

1,569,267

Agency Securities

Up to 30 Days


26

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Reverse Repurchase Agreements (continued)

Counterparty

Interest

Rate

Trade

Date

Maturity

Date

^(a)

Face Value

Including

Accrued Interest

Type of Non-Cash Underlying

Collateral

Remaining

Contractual Maturity

of the Agreements

^(a)

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,082,296

1,085,409

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

1,091,415

1,094,554

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

951,951

954,689

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

448,667

449,957

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

Cantor Fitzgerald & Co.

5.45

03/12/24

04/11/24

230,838

231,502

U.S. Government
Sponsored
Agency Securities

Up to 30 Days

J.P. Morgan Securities LLC

5.50

03/12/24

04/17/24

147,710

148,139

Foreign Agency
Obligations

Up to 30 Days

J.P. Morgan Securities LLC

4.50

03/13/24

04/17/24

160,864

161,246

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

4.85

03/13/24

04/17/24

385,632

387,450

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

4.90

03/13/24

04/17/24

1,785,000

1,789,616

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

5.00

03/13/24

04/17/24

150,618

151,016

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

5.25

03/13/24

04/17/24

992,599

995,349

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

5.40

03/13/24

04/17/24

137,250

137,641

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

5.45

03/13/24

04/17/24

264,864

265,626

Foreign Agency
Obligations

Up to 30 Days

J.P. Morgan Securities LLC

5.45

03/13/24

04/17/24

241,400

242,094

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

5.45

03/13/24

04/17/24

487,374

488,776

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

5.45

03/13/24

04/17/24

1,128,750

1,131,997

Corporate Bonds

Up to 30 Days

Merrill Lynch International

5.32

03/13/24

04/18/24

160,745

161,173

Foreign Agency
Obligations

Up to 30 Days

Merrill Lynch International

5.33

03/13/24

04/18/24

159,031

159,455

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.15

03/14/24

04/18/24

270,970

271,668

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.15

03/14/24

04/18/24

583,700

585,203

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.25

03/14/24

04/18/24

135,010

135,364

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.25

03/14/24

04/18/24

168,445

168,887

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.35

03/14/24

04/18/24

166,263

166,707

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.35

03/14/24

04/18/24

522,000

523,396

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.35

03/14/24

04/18/24

162,500

162,935

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.35

03/14/24

04/18/24

151,105

151,509

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.35

03/14/24

04/18/24

163,280

163,717

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

236,844

237,483

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

367,901

368,895

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

455,000

456,228

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

331,110

332,004

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

417,500

418,627

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

205,350

205,904

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

138,225

138,598

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

126,650

126,992

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

575,250

576,803

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

227,311

227,925

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

1,291,875

1,295,363

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

204,125

204,676

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/14/24

04/18/24

661,342

663,128

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

239,243

239,894

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

3,725,000

3,735,151

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

100,760

101,035

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

392,421

393,491

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

450,625

451,853

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

544,131

545,614

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

1,631,250

1,635,695

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

205,456

206,016

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

2,865,000

2,872,807

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

127,470

127,817

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

347,500

348,447

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

1,534,250

1,538,431

Capital Trusts

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

2,633,340

2,640,516

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

795,000

797,166

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

209,948

210,520

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/14/24

04/18/24

815,957

818,181

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.50

03/14/24

04/18/24

539,159

540,642

Corporate Bonds

Up to 30 Days


S C H E D U L E O F I N V E S T M E N T S			27

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Reverse Repurchase Agreements (continued)

Counterparty

Interest

Rate

Trade

Date

Maturity

Date

^(a)

Face Value

Including

Accrued Interest

Type of Non-Cash Underlying

Collateral

Remaining

Contractual Maturity

of the Agreements

^(a)

BofA Securities, Inc.

5.50

03/14/24

04/18/24

461,601

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.50

03/14/24

04/18/24

361,165

362,158

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.50

03/14/24

04/18/24

176,605

177,091

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.50

03/14/24

04/18/24

4,215,394

4,226,986

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.60

03/14/24

04/18/24

158,828

159,272

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.60

03/14/24

04/18/24

767,187

769,336

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.60

03/14/24

04/18/24

740,000

742,072

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.30

03/15/24

04/18/24

172,922

173,278

Capital Trusts

Up to 30 Days

BofA Securities, Inc.

5.40

03/15/24

04/18/24

1,537,789

1,541,710

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/15/24

04/18/24

524,081

525,192

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/15/24

04/18/24

71,400

71,551

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.50

03/15/24

04/18/24

403,780

404,644

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.50

03/15/24

04/18/24

224,944

225,425

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.53

03/15/24

04/18/24

78,977

79,147

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

5.49

^(b)

03/15/24

Open

2,542,969

2,548,398

Corporate Bonds

Open/Demand

BofA Securities, Inc.

5.45

03/19/24

04/18/24

112,306

112,527

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

258,405

258,793

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

169,155

169,409

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

104,241

104,398

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

225,781

226,120

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

242,171

242,534

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

103,444

103,599

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

308,989

309,452

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

133,403

133,603

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

109,586

109,751

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

327,010

327,501

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.40

03/21/24

04/18/24

254,925

255,307

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/21/24

04/18/24

138,161

138,371

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/21/24

04/18/24

426,575

427,221

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/21/24

04/18/24

169,451

169,708

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/21/24

04/18/24

301,070

301,526

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/21/24

04/18/24

222,931

223,269

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/21/24

04/18/24

143,198

143,414

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/21/24

04/18/24

94,331

94,474

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.45

03/21/24

04/18/24

198,835

199,136

Corporate Bonds

Up to 30 Days

Nomura Securities International, Inc.

5.48

^(b)

03/21/24

Open

354,137

354,730

Corporate Bonds

Open/Demand

Barclays Bank PLC

5.49

03/22/24

04/24/24

2,371,875

2,375,492

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

2.00

03/22/24

04/24/24

15,580

15,589

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

4.25

03/22/24

04/24/24

55,658

55,723

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

4.50

03/22/24

04/24/24

262,836

263,165

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

4.50

03/22/24

04/24/24

177,131

177,353

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

214,698

215,023

Capital Trusts

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

182,722

182,999

Capital Trusts

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

1,011,193

1,012,724

Capital Trusts

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

111,353

111,521

Capital Trusts

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

3,660,000

3,665,541

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

176,750

177,018

Capital Trusts

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

2,078,125

2,081,271

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

773,750

774,921

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

1,032,812

1,034,376

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

1,147,125

1,148,862

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

1,211,250

1,213,084

Corporate Bonds

Up to 30 Days

Barclays Capital, Inc.

5.45

03/22/24

04/24/24

920,000

921,393

Corporate Bonds

Up to 30 Days

J.P. Morgan Securities LLC

5.45

03/26/24

04/17/24

221,619

221,820

Corporate Bonds

Up to 30 Days

BofA Securities, Inc.

5.35

03/26/24

04/18/24

313,170

313,449

Corporate Bonds

Up to 30 Days

BNP Paribas SA

5.45

^(b)

03/26/24

Open

259,688

259,923

Corporate Bonds

Open/Demand

BNP Paribas SA

5.49

^(b)

03/26/24

Open

178,360

178,523

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.32

^(b)

03/26/24

Open

408,098

408,460

Corporate Bonds

Open/Demand

RBC Capital Markets, LLC

4.65

^(b)

03/26/24

Open

402,320

402,580

Corporate Bonds

Open/Demand

RBC Capital Markets, LLC

4.80

^(b)

03/26/24

Open

424,687

424,971

Corporate Bonds

Open/Demand


28

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Reverse Repurchase Agreements (continued)

Counterparty

Interest

Rate

Trade

Date

Maturity

Date

^(a)

Face Value

Including

Accrued Interest

Type of Non-Cash Underlying

Collateral

Remaining

Contractual Maturity

of the Agreements

^(a)

Nomura Securities International, Inc.

5.48

%^(b)

03/27/24

Open

847,717

848,363

Corporate Bonds

Open/Demand

BNP Paribas SA

5.41

^(b)

03/28/24

Open

185,674

185,785

Corporate Bonds

Open/Demand

Nomura Securities International, Inc.

5.48

^(b)

03/28/24

Open

183,665

183,777

Corporate Bonds

Open/Demand

284,611,118

288,383,050

^(a)

Certain agreements have no stated maturity and can be terminated by either party at any time.

^(b)

Variable rate security. Rate as of period end and maturity is the date the principal owed can be recovered through demand.

Derivative Financial Instruments Outstanding as of Period End

Futures Contracts



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

Long Contracts
10-Year U.S. Ultra Long Treasury Note		417		06/18/24	$	47,792	$	250,803
Ultra U.S. Treasury Bond		712		06/18/24		91,848		1,962,796


								2,213,599

Short Contracts
10-Year U.S. Treasury Note		844		06/18/24		93,513		(340,602	)
U.S. Long Bond		159		06/18/24		19,150		(336,909	)
2-Year U.S. Treasury Note		105		06/28/24		21,471		23,231
5-Year U.S. Treasury Note		18		06/28/24		1,926		(4,784	)


								(659,064	)


							$	1,554,535

Forward Foreign Currency Exchange Contracts



Currency Purchased		Currency Sold			Counterparty	Settlement Date		Unrealized Appreciation (Depreciation)

USD	76,762		EUR	69,855	Deutsche Bank AG		05/16/24	$	1,270
USD	376,010		EUR	342,243	Deutsche Bank AG		05/16/24		6,149
USD	110,959		CAD	150,000	Deutsche Bank AG		06/20/24		96
USD	103,196		EUR	95,000	State Street Bank and Trust Co.		06/20/24		381
USD	48,055		EUR	44,000	UBS AG		06/20/24		436
USD	6,054,986		EUR	5,537,000	UBS AG		06/20/24		62,535
USD	120,064		GBP	95,000	JPMorgan Chase Bank N.A.		06/20/24		110
USD	127,369		GBP	100,000	Morgan Stanley & Co. International PLC		06/20/24		1,102
USD	736,252		GBP	578,000	Morgan Stanley & Co. International PLC		06/20/24		6,428


								$	78,507

Exchange-Traded Options Purchased

Description

Number of

Contracts

Expiration

Date

Exercise Price

Notional

Amount (000)

Value

Put

10-Year U.S. Treasury Note Future

04/26/24

USD109.00

USD 111

141


S C H E D U L E O F I N V E S T M E N T S			29

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Exchange-Traded Options Written

Description

Number of

Contracts

Expiration

Date

Exercise Price

Notional

Amount (000)

Value

Put

10-Year U.S. Treasury Note Future

04/26/24

USD

106.50

USD

111

(16

)

Centrally Cleared Credit Default Swaps — Buy Protection



Reference Obligation/Index	Financing Rate Paid by the Trust			Payment Frequency		Termination Date		Notional Amount (000)		Value			Upfront Premium Paid (Received)			Unrealized Appreciation (Depreciation)
CDX.NA.HY.41.V2		5.00	%		Quarterly		12/20/28	USD	8,306	$	(625,343	)	$	(184,221	)	$	(441,122	)
CDX.NA.IG.41.V1		1.00			Quarterly		12/20/28	USD	25,210		(584,163	)		(349,905	)		(234,258	)


										$	(1,209,506	)	$	(534,126	)	$	(675,380	)

OTC Credit Default Swaps — Sell Protection


Reference Obligation/Index	Financing Rate Received by the Trust		Payment Frequency	Counterparty	Termination Date	Credit Rating	^(a)	Notional Amount (000)^(b)			Value			Upfront Premium Paid (Received)			Unrealized Appreciation (Depreciation)
Virgin Media Finance PLC	5.00	%	Quarterly	JPMorgan Chase Bank N.A. Morgan Stanley & Co.	12/20/25	B-		EUR	10	$	672		$	544		$	128
CMA CGM SA	5.00		Quarterly	International PLC	06/20/27	N/R		EUR	20		2,356			3,309			(953	)
Adler Real Estate AG	5.00		Quarterly	Bank of America N.A.	12/20/27	N/R		EUR	5		(279	)		(942	)		663
Adler Real Estate AG	5.00		Quarterly	Barclays Bank PLC	12/20/27	N/R		EUR	3		(168	)		(553	)		385
Adler Real Estate AG	5.00		Quarterly	Barclays Bank PLC	12/20/27	N/R		EUR	9		(471	)		(1,555	)		1,084
Adler Real Estate AG	5.00		Quarterly	Citibank N.A.	12/20/27	N/R		EUR	3		(137	)		(464	)		327
Adler Real Estate AG	5.00		Quarterly	JPMorgan Chase Bank N.A.	12/20/27	N/R		EUR	6		(286	)		(974	)		688
				Morgan Stanley & Co.
Adler Real Estate AG	5.00		Quarterly	International PLC	12/20/27	N/R		EUR	4		(207	)		(694	)		487
Faurecia SE	5.00		Quarterly	Barclays Bank PLC	06/20/29	BB		EUR	13		1,820			1,792			28
Ziggo Bond Co. BV	5.00		Quarterly	Bank of America N.A. Morgan Stanley & Co.	06/20/29	B-		EUR	7		466			595			(129	)
CMBX.NA.15	3.00		Monthly	International PLC	11/15/64	N/R		USD	4,710		(665,490	)		(871,184	)		205,694


										$	(661,724	)	$	(870,126	)	$	208,402

^(a)

Using the rating of the issuer or the underlying securities of the index, as applicable, provided by S&P Global Ratings.

^(b)

The maximum potential amount the Trust may pay should a negative credit event take place as defined under the terms of the agreement.

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 Trust has the ability to access;

•

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


30

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Fair Value Hierarchy as of Period End (continued)

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 Trust’s policy regarding valuation of financial instruments, refer to its most recent financial statements.

The following table summarizes the Trust’s financial instruments categorized in the fair value hierarchy. The breakdown of the Trust’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
Asset-Backed Securities	$	—	$	99,511,793	$	353,094	$	99,864,887
Corporate Bonds
Aerospace & Defense		—		15,523,880		—		15,523,880
Air Freight & Logistics		—		1,122,232		—		1,122,232
Automobile Components		—		2,868,815		—		2,868,815
Automobiles		—		5,411,431		—		5,411,431
Banks		—		29,868,151		—		29,868,151
Beverages		—		4,704,740		—		4,704,740
Biotechnology		—		3,509,162		—		3,509,162
Broadline Retail		—		1,561,972		—		1,561,972
Building Products		—		8,039,103		—		8,039,103
Capital Markets		—		5,215,877		—		5,215,877
Chemicals		—		4,578,960		—		4,578,960
Commercial Services & Supplies		—		6,803,934		—		6,803,934
Communications Equipment		—		650,360		—		650,360
Construction & Engineering		—		1,384,083		—		1,384,083
Construction Materials		—		3,809,718		—		3,809,718
Consumer Discretionary		—		94,469		—		94,469
Consumer Finance		—		5,636,944		—		5,636,944
Consumer Staples Distribution & Retail		—		2,250,076		—		2,250,076
Containers & Packaging		—		4,077,962		—		4,077,962
Diversified Consumer Services		—		1,429,937		—		1,429,937
Diversified REITs		—		7,797,014		—		7,797,014
Diversified Telecommunication Services		110,442		18,178,368		—		18,288,810
Electric Utilities		—		28,047,257		—		28,047,257
Electrical Equipment		—		813,405		—		813,405
Electronic Equipment, Instruments & Components		—		1,915,897		—		1,915,897
Energy Equipment & Services		—		2,332,304		—		2,332,304
Entertainment		—		118,581		—		118,581
Environmental, Maintenance & Security Service		—		2,029,943		—		2,029,943
Financial Services		—		3,561,406		—		3,561,406
Food Products		—		1,489,512		—		1,489,512
Gas Utilities		—		1,489,044		—		1,489,044
Ground Transportation		—		7,692,050		—		7,692,050
Health Care Equipment & Supplies		—		4,949,035		—		4,949,035
Health Care Providers & Services		—		10,875,831		—		10,875,831
Health Care Technology		—		1,179,858		—		1,179,858
Hotel & Resort REITs		—		1,364,028		—		1,364,028
Hotels, Restaurants & Leisure		—		11,479,306		1,966,923		13,446,229
Household Durables		—		679,434		—		679,434
Household Products		—		231,197		—		231,197
Independent Power and Renewable Electricity Producers		—		1,207,686		—		1,207,686
Insurance		—		22,042,463		—		22,042,463
Interactive Media & Services		—		467,785		—		467,785
Internet Software & Services		—		149,213		—		149,213
IT Services		—		4,487,585		—		4,487,585
Leisure Products		—		349,446		—		349,446
Machinery		—		4,356,868		—		4,356,868
Marine Transportation		—		102,050		—		102,050
Media		—		22,026,107		—		22,026,107
Metals & Mining		—		5,255,206		—		5,255,206
Mortgage Real Estate Investment Trusts (REITs)		—		205,324		—		205,324
Office REITs		—		599,217		—		599,217
Oil, Gas & Consumable Fuels		—		38,659,886		1,324,072		39,983,958
Paper & Forest Products		—		901,180		—		901,180


S C H E D U L E O F I N V E S T M E N T S			31

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

Fair Value Hierarchy as of Period End (continued)



	Level 1			Level 2			Level 3		Total
Corporate Bonds (continued)
Passenger Airlines	$	—		$	4,685,344		$	—	$	4,685,344
Personal Care Products		—			108,658			—		108,658
Pharmaceuticals		—			9,044,800			—		9,044,800
Professional Services		—			856,269			—		856,269
Real Estate Management & Development		—			748,269			616,487		1,364,756
Residential REITs		—			991,411			—		991,411
Retail REITs		—			1,507,132			—		1,507,132
Semiconductors & Semiconductor Equipment		—			7,006,856			—		7,006,856
Software		—			12,553,388			—		12,553,388
Specialized REITs		—			282,757			—		282,757
Specialty Retail		—			773,290			—		773,290
Technology Hardware, Storage & Peripherals		—			1,386,838			—		1,386,838
Textiles, Apparel & Luxury Goods		—			123,565			—		123,565
Tobacco		—			4,955,428			—		4,955,428
Trading Companies & Distributors		—			289,416			—		289,416
Transportation Infrastructure		—			4,896,721			—		4,896,721
Water Utilities		—			1,301,052			—		1,301,052
Wireless Telecommunication Services		—			5,984,132			—		5,984,132
Floating Rate Loan Interests		—			17,809,408			1,888,482		19,697,890
Foreign Agency Obligations		—			10,794,892			—		10,794,892
Municipal Bonds		—			19,645,908			—		19,645,908
Non-Agency Mortgage-Backed Securities		—			82,990,460			—		82,990,460
Preferred Securities
Capital Trusts		—			40,906,728			—		40,906,728
Preferred Stocks
Banks		1,663,509			—			—		1,663,509
Financial Services		—			39,900			—		39,900
Trust Preferred		871,811			—			—		871,811
U.S. Government Sponsored Agency Securities		—			116,444,906			—		116,444,906
U.S. Treasury Obligations		—			105,953,347			—		105,953,347
Short-Term Securities
Money Market Funds		7,145,875			—			—		7,145,875
Options Purchased
Interest Rate Contracts		141			—			—		141
Liabilities
Investments
TBA Sale Commitments		—			(5,370,534	)		—		(5,370,534	)


	$	9,791,778		$	861,797,426		$	6,149,058	$	877,738,262

Derivative Financial Instruments^(a)
Assets
Credit Contracts	$	—		$	209,484		$	—	$	209,484
Foreign Currency Exchange Contracts		—			78,507			—		78,507
Interest Rate Contracts		2,236,830			—			—		2,236,830
Liabilities
Credit Contracts		—			(676,462	)		—		(676,462	)
Interest Rate Contracts		(682,311	)		—			—		(682,311	)


	$	1,554,519		$	(388,471	)	$	—	$	1,166,048

^(a)

Derivative financial instruments are swaps, futures contracts and forward foreign currency exchange contracts. Swaps, futures contracts and forward foreign currency exchange contracts are valued at the unrealized appreciation (depreciation) on the instrument.

The Trust may hold assets and/or liabilities in which the fair value approximates the carrying amount or face value, including accrued interest, for financial reporting purposes. As of period end, reverse repurchase agreements of $288,383,050 are categorized as Level 2 within the fair value hierarchy.


32

Schedule of Investments (unaudited) (continued)

March 31, 2024

BlackRock Core Bond Trust (BHK)

A reconciliation of Level 3 financial instruments is presented when the Trust had a significant amount of Level 3 investments and derivative financial instruments at the beginning and/or end of the period in relation to net assets. The following table is a reconciliation of Level 3 investments for which significant unobservable inputs were used in determining fair value:




	Asset-Backed Securities			Corporate Bonds			Floating Rate Loan Interests			Total

Assets
Opening balance, as of December 31, 2023	$	961,517		$	4,014,607		$	311,432		$	5,287,556
Transfers into Level 3		—			—			302,610			302,610
Transfers out of Level 3		(500,050	)		—			(142,170	)		(642,220	)
Accrued discounts/premiums		(5,539	)		—			339			(5,200	)
Net realized gain (loss)		1,057			—			10			1,067
Net change in unrealized appreciation (depreciation)^(a)		9,014			(46,241	)		52,022			14,795
Purchases		—			—			1,364,714			1,364,714
Sales		(112,905	)		(60,884	)		(475	)		(174,264	)


Closing balance, as of March 31, 2024	$	353,094		$	3,907,482		$	1,888,482		$	6,149,058

Net change in unrealized appreciation (depreciation) on investments still held at March 31, 2024^(a)	$	9,014		$	(46,241	)	$	52,022		$	14,795

^(a)

Any difference between net change in unrealized appreciation (depreciation) and net change in unrealized appreciation (depreciation) on investments still held at March 31, 2024 is generally due to investments no longer held or categorized as Level 3 at period end.



Currency Abbreviation

CAD		Canadian Dollar

EUR		Euro

GBP		British Pound

USD		United States Dollar

Portfolio Abbreviation

AGM		Assured Guaranty Municipal Corp.

BAB		Build America Bond

BAM		Build America Mutual Assurance Co.

CLO		Collateralized Loan Obligation

CMT		Constant Maturity Treasury

DAC		Designated Activity Company

EURIBOR		Euro Interbank Offered Rate

GO		General Obligation Bonds

PIK		Payment-in-Kind

RB		Revenue Bond

SG		Syncora Guarantee

SOFR		Secured Overnight Financing Rate

TBA		To-Be-Announced


S C H E D U L E O F I N V E S T M E N T S			33

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