Schedule of Investments  (unaudited)  April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Common Stocks — 98.1%
Aerospace & Defense — 1.2%
AAR Corp.		1,450	$	28,391
Aerojet Rocketdyne Holdings, Inc.(a)(b)		3,968		163,244
AeroVironment, Inc.(a)(b)		1,163		70,082
Astronics Corp.(b)		1,123		10,085
Axon Enterprise, Inc.(a)(b)		3,026		220,020
Cubic Corp.		1,725		65,912
Curtiss-Wright Corp.		2,287		237,048
Ducommun, Inc.(b)		520		14,685
Hexcel Corp.		4,591		158,803
Huntington Ingalls Industries, Inc.		2,129		407,512
Kratos Defense & Security Solutions, Inc.(b)		5,061		76,016
Maxar Technologies, Inc.(b)		3,386		42,697
Mercury Systems, Inc.(b)		2,934		261,595
Moog, Inc., Class A		1,670		82,632
National Presto Industries, Inc.		199		16,181
Park Aerospace Corp.		922		12,272
Parsons Corp.(b)		1,076		40,242
Spirit AeroSystems Holdings, Inc., Class A		5,600		124,096
Teledyne Technologies, Inc.(b)		1,902		619,424
Triumph Group, Inc.		2,190		15,418
Vectrus, Inc.(b)		535		27,825
				2,694,180
Air Freight & Logistics — 0.3%
Air Transport Services Group, Inc.(b)		3,300		66,792
Atlas Air Worldwide Holdings, Inc.(b)		1,369		44,972
Echo Global Logistics, Inc.(b)		1,276		22,368
Forward Air Corp.		1,393		71,879
Hub Group, Inc., Class A(b)		1,690		81,306
Park-Ohio Holdings Corp.		104		1,906
Radiant Logistics, Inc.(b)		1,614		6,908
XPO Logistics, Inc.(b)		4,929		328,961
				625,092
Airlines — 0.3%
Alaska Air Group, Inc.		6,200		201,624
Allegiant Travel Co.		738		57,918
Copa Holdings SA, Class A		1,689		74,671
Hawaiian Holdings, Inc.		2,718		39,139
JetBlue Airways Corp.(a)(b)		15,360		149,606
Mesa Air Group, Inc.(a)(b)		1,375		6,249
SkyWest, Inc.		2,747		85,020
Spirit Airlines, Inc.(a)(b)		3,580		53,772
				667,999
Auto Components — 0.7%
Adient PLC(b)		4,939		73,986
American Axle & Manufacturing Holdings, Inc.(b)		6,788		29,324
BorgWarner, Inc.		11,063		316,070
Cooper Tire & Rubber Co.		2,999		63,549

Security	Shares		Value
Auto Components (continued)
Cooper-Standard Holdings, Inc.(a)(b)		836	$	10,743
Dana, Inc.		7,548		86,802
Dorman Products, Inc.(b)		1,445		91,151
Fox Factory Holding Corp.(b)		1,873		95,542
Gentex Corp.		13,597		329,591
Gentherm, Inc.(b)		1,620		60,653
Goodyear Tire & Rubber Co.		13,174		94,458
LCI Industries		1,307		113,343
Modine Manufacturing Co.(b)		2,488		11,519
Motorcar Parts of America, Inc.(a)(b)		885		12,593
Spartan Motors, Inc.		2,029		28,589
Standard Motor Products, Inc.		973		39,591
Stoneridge, Inc.(b)		1,291		25,859
Tenneco, Inc., Class A		2,345		12,170
Visteon Corp.(a)(b)		1,505		90,751
				1,586,284
Automobiles — 0.2%
Harley-Davidson, Inc.(a)		8,161		178,155
Thor Industries, Inc.		2,746		181,785
Winnebago Industries, Inc.(a)		1,656		73,477
				433,417
Banks — 5.7%
1st Constitution Bancorp		645		8,191
1st Source Corp.		821		28,513
ACNB Corp.		459		12,834
Allegiance Bancshares, Inc.(a)		891		22,346
Amalgamated Bank, Class A		644		6,891
Amerant Bancorp, Inc.(b)		994		13,439
American National Bankshares, Inc.		893		23,888
Ameris Bancorp		3,462		88,039
Ames National Corp.		530		11,236
Arrow Financial Corp.		959		27,331
Associated Banc-Corp		8,773		124,050
Atlantic Capital Bancshares, Inc.(b)		1,563		19,616
Atlantic Union Bankshares Corp.		4,223		100,803
BancFirst Corp.		939		36,161
Banco Latinoamericano de Comercio Exterior SA		1,922		21,949
Bancorp, Inc.(b)		1,805		12,581
BancorpSouth Bank		5,537		121,205
Bank First Corp.(a)		293		15,007
Bank of Commerce Holdings		768		5,906
Bank of Hawaii Corp.		2,109		143,792
Bank of Marin Bancorp		706		23,270
Bank of NT Butterfield & Son Ltd.		2,941		64,731
Bank of Princeton		17		357
Bank OZK		6,634		150,061
Bank7 Corp.		125		1,250
BankFinancial Corp.		1,007		8,328
BankUnited, Inc.		5,321		105,409
Bankwell Financial Group, Inc.		660		10,065
Banner Corp.		1,390		53,418

1

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Banks (continued)
Bar Harbor Bankshares		689	$	12,664
Baycom Corp.(b)		170		2,096
BCB Bancorp, Inc.		694		7,023
BOK Financial Corp.		1,740		90,115
Boston Private Financial Holdings, Inc.		2,027		15,405
Bridge Bancorp, Inc.		1,249		25,842
Bryn Mawr Bank Corp.		1,311		38,170
Business First Bancshares, Inc.		1,013		14,162
Byline Bancorp, Inc.		1,534		18,899
C&F Financial Corp.		146		5,192
Cadence BanCorp		5,144		34,053
Cambridge Bancorp		225		12,550
Camden National Corp.		767		25,119
Capital Bancorp, Inc.(b)		913		9,915
Capital City Bank Group, Inc.		641		14,128
Capstar Financial Holdings, Inc.		606		6,914
Carolina Financial Corp.		1,424		48,174
Carter Bank & Trust		1,293		12,258
Cathay General Bancorp		4,222		117,878
CBTX, Inc.		910		16,435
CenterState Bank Corp.		6,520		113,383
Central Pacific Financial Corp.		639		11,176
Central Valley Community Bancorp		698		10,212
Century Bancorp, Inc., Class A		157		11,726
Chemung Financial Corp.		272		6,664
CIT Group, Inc.		5,130		97,367
Citizens & Northern Corp.		890		15,913
City Holding Co.		819		55,356
Civista Bancshares, Inc.		700		10,731
CNB Financial Corp.		684		12,134
Coastal Financial Corp.(b)		381		5,002
Codorus Valley Bancorp, Inc.		558		7,840
Colony Bankcorp, Inc.		304		3,830
Columbia Banking System, Inc.		3,008		81,186
Commerce Bancshares, Inc.		5,399		330,365
Community Bank System, Inc.		2,751		171,910
Community Bankers Trust Corp.		1,006		5,624
Community Financial Corp.		187		4,338
Community Trust Bancorp, Inc.		803		27,222
ConnectOne Bancorp, Inc.		1,663		24,845
CrossFirst Bankshares, Inc.(a)(b)		2,444		23,633
Cullen/Frost Bankers, Inc.		2,974		213,712
Customers Bancorp, Inc.(b)		1,348		17,200
CVB Financial Corp.		6,744		140,174
Eagle Bancorp, Inc.		1,288		45,183
East West Bancorp, Inc.		7,647		268,180
Enterprise Bancorp, Inc.		520		12,558
Enterprise Financial Services Corp.		1,489		45,772
Equity Bancshares, Inc., Class A(b)		729		13,661
Esquire Financial Holdings, Inc.(b)		330		5,419
Evans Bancorp, Inc.		193		5,360
Farmers & Merchants Bancorp, Inc./Archbold		529		12,696
Farmers National Banc Corp.		1,941		24,049

Security	Shares		Value
Banks (continued)
FB Financial Corp.		1,032	$	23,055
Fidelity D&D Bancorp, Inc.		158		6,096
Financial Institutions, Inc.		857		16,583
First Bancorp, Inc.		776		16,994
First BanCorp, Puerto Rico		11,430		66,637
First Bancorp/Southern Pines		1,629		43,315
First Bancshares, Inc.		1,030		20,518
First Bank/Hamilton		786		6,225
First Busey Corp.		2,831		52,147
First Business Financial Services, Inc.		336		5,772
First Capital, Inc.		162		8,076
First Choice Bancorp		535		8,143
First Citizens BancShares, Inc., Class A		360		137,520
First Commonwealth Financial Corp.		4,004		38,118
First Community Bancshares, Inc.		1,115		26,281
First Financial Bancorp		4,073		62,643
First Financial Bankshares, Inc.		7,133		198,654
First Financial Corp.		698		24,793
First Financial Northwest, Inc.		318		3,123
First Foundation, Inc.		1,835		25,250
First Guaranty Bancshares, Inc.		384		5,188
First Hawaiian, Inc.		7,266		127,809
First Horizon National Corp.		16,922		153,652
First Internet Bancorp		483		7,583
First Interstate Bancsystem, Inc., Class A		2,124		71,791
First Merchants Corp.		2,930		82,948
First Mid Bancshares, Inc.		1,117		29,824
First Midwest Bancorp, Inc.		4,305		63,628
First Northwest Bancorp		1,156		13,467
First of Long Island Corp.		1,666		26,306
FNB Corp.		17,921		144,981
FNCB Bancorp, Inc.		306		1,897
Franklin Financial Network, Inc.		580		13,758
Franklin Financial Services Corp.		294		8,497
Fulton Financial Corp.		8,301		97,039
FVCBankcorp, Inc.(b)		1,055		12,143
German American Bancorp, Inc.		1,488		44,238
Glacier Bancorp, Inc.		4,656		177,300
Great Southern Bancorp, Inc.		654		27,841
Great Western Bancorp, Inc.		2,356		44,293
Guaranty Bancshares, Inc.		399		10,761
Hancock Whitney Corp.		4,603		96,249
Hanmi Financial Corp.		814		9,825
HarborOne Bancorp, Inc.(b)		1,238		9,929
Hawthorn Bancshares, Inc.		545		9,919
HBT Financial, Inc.		587		6,839
Heartland Financial USA, Inc.		2,034		69,095
Heritage Commerce Corp.		3,109		27,608
Heritage Financial Corp.		1,541		30,897
Home BancShares, Inc.		8,771		134,459
HomeTrust Bancshares, Inc.		876		13,464
Hope Bancorp, Inc.		4,942		49,173
Horizon Bancorp		2,298		26,151

2

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Banks (continued)
Howard Bancorp, Inc.(b)		621	$	6,937
Iberiabank Corp.		2,879		119,363
Independent Bank Corp.		2,483		120,923
Independent Bank Group, Inc.		1,890		57,286
International Bancshares Corp.		3,046		88,303
Investar Holding Corp.		370		4,643
Investors Bancorp, Inc.		12,723		118,451
Lakeland Bancorp, Inc.		2,903		32,485
Lakeland Financial Corp.		1,414		59,855
LCNB Corp.		1,028		14,741
Level One Bancorp, Inc.		336		6,085
Live Oak Bancshares, Inc.		1,248		17,410
Macatawa Bank Corp.		1,007		7,734
Mackinac Financial Corp.		391		4,035
MainStreet Bancshares, Inc.(b)		295		4,431
Mercantile Bank Corp.		768		18,125
Metrocity Bankshares, Inc.		851		9,008
Metropolitan Bank Holding Corp.(b)		320		8,029
Mid Penn Bancorp, Inc.		619		12,132
Midland States Bancorp, Inc.		1,038		16,836
MidWestOne Financial Group, Inc.		679		14,171
MVB Financial Corp.		703		9,652
National Bank Holdings Corp., Class A		1,196		31,790
National Bankshares, Inc.		350		10,493
NBT Bancorp, Inc.		1,797		59,535
Nicolet Bankshares, Inc.(b)		487		26,795
Northeast Bank(b)		309		5,176
Northrim BanCorp, Inc.		325		7,621
Norwood Financial Corp.		265		6,261
Oak Valley Bancorp		300		3,918
OFG Bancorp		2,026		25,487
Ohio Valley Banc Corp.		200		5,040
Old National Bancorp		7,841		111,107
Old Second Bancorp, Inc.		1,188		9,777
Opus Bank		1,067		20,508
Origin Bancorp, Inc.		914		20,373
Orrstown Financial Services, Inc.		493		7,592
Pacific Mercantile Bancorp(b)		851		3,412
Pacific Premier Bancorp, Inc.		2,832		60,463
PacWest Bancorp		6,541		132,390
Park National Corp.		756		60,465
Parke Bancorp, Inc.		468		6,594
PCB Bancorp		756		7,091
Peapack Gladstone Financial Corp.		649		12,247
Penns Woods Bancorp, Inc.		318		7,282
People’s United Financial, Inc.		23,423		297,238
People’s Utah Bancorp		705		15,143
Peoples Bancorp of North Carolina, Inc.		237		4,124
Peoples Bancorp, Inc.		1,308		31,797
Peoples Financial Services Corp.		376		13,916
Pinnacle Financial Partners, Inc.		3,925		157,981
Popular, Inc.		5,125		197,774
Preferred Bank		660		25,179
Premier Financial Bancorp, Inc.		602		7,826

Security	Shares		Value
Banks (continued)
Professional Holding Corp., Class A(b)		149	$	2,189
Prosperity Bancshares, Inc.		4,821		288,922
QCR Holdings, Inc.		1,011		31,119
RBB Bancorp		994		12,842
Red River Bancshares, Inc.		271		10,377
Reliant Bancorp Inc.		453		6,596
Renasant Corp.		3,183		83,490
Republic Bancorp, Inc., Class A		679		22,631
Republic First Bancorp, Inc.(b)		2,161		5,683
Richmond Mutual BanCorp., Inc.(b)		732		7,818
S&T Bancorp, Inc.		2,052		54,809
Sandy Spring Bancorp, Inc.		2,076		52,938
SB One Bancorp		585		10,782
Seacoast Banking Corp. of Florida(a)(b)		2,600		58,422
Select Bancorp, Inc.(b)		788		6,462
ServisFirst Bancshares, Inc.(a)		2,701		95,939
Shore Bancshares, Inc.		727		8,070
Sierra Bancorp		672		13,642
Signature Bank		2,893		310,072
Silvergate Capital Corp., Class A(b)		161		2,560
Simmons First National Corp., Class A		5,010		93,687
SmartFinancial, Inc.		576		8,329
South Plains Financial, Inc.		568		7,060
South State Corp.		1,875		108,450
Southern First Bancshares, Inc.(b)		699		20,383
Southern National Bancorp of Virginia, Inc.		1,386		13,957
Southside Bancshares, Inc.		1,733		52,700
Spirit of Texas Bancshares, Inc.(b)		780		8,962
Sterling Bancorp		10,484		129,268
Stock Yards Bancorp, Inc.		1,195		39,483
Summit Financial Group, Inc.		449		7,929
Synovus Financial Corp.		7,664		161,021
TCF Financial Corp.		8,259		245,210
Texas Capital Bancshares, Inc.(b)		2,688		74,673
Tompkins Financial Corp.		839		56,641
TowneBank		3,827		77,305
Trico Bancshares		1,476		44,457
TriState Capital Holdings, Inc.(b)		1,104		15,699
Triumph Bancorp, Inc.(a)(b)		1,079		29,899
Trustmark Corp.		3,618		96,275
UMB Financial Corp.		2,460		125,066
Umpqua Holdings Corp.		12,309		154,170
Union Bankshares, Inc.		170		4,085
United Bankshares, Inc.		5,395		161,634
United Community Banks, Inc.		3,072		64,957
United Security Bancshares		1,160		7,726
Unity Bancorp, Inc.		440		6,318
Univest Financial Corp.		1,934		34,232
Valley National Bancorp		21,492		179,673
Veritex Holdings, Inc.		2,353		41,319
Washington Trust Bancorp, Inc.		826		28,918
Webster Financial Corp.		4,939		139,527
WesBanco, Inc.		3,647		90,008

3

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Banks (continued)
West BanCorp., Inc.		744	$	13,838
Westamerica BanCorp		1,343		84,609
Western Alliance Bancorp		4,898		175,740
Wintrust Financial Corp.		3,107		130,183
Zions Bancorp. NA		8,528		269,570
				12,291,929
Beverages — 0.2%
Boston Beer Co., Inc., Class A(a)(b)		437		203,865
Celsius Holdings, Inc.(a)(b)		1,474		7,399
Coca-Cola Consolidated, Inc.		266		62,635
Craft Brew Alliance, Inc.(a)(b)		567		8,562
MGP Ingredients, Inc.		757		28,561
National Beverage Corp.(b)		691		34,709
New Age Beverages Corp.(b)		3,021		4,260
				349,991
Biotechnology — 6.2%
89bio, Inc.(b)		127		2,986
Abeona Therapeutics, Inc.(b)		2,644		6,293
ACADIA Pharmaceuticals, Inc.(b)		5,948		287,348
Acceleron Pharma, Inc.(b)		2,422		219,264
Acorda Therapeutics, Inc.(b)		1,880		1,810
Adamas Pharmaceuticals, Inc.(b)		757		2,445
ADMA Biologics, Inc.(a)(b)		3,350		9,882
Aduro Biotech, Inc.(b)		3,291		9,100
Adverum Biotechnologies, Inc.(a)(b)		3,531		41,842
Aeglea BioTherapeutics, Inc.(b)		1,022		7,941
Affimed NV(b)		3,517		7,702
Agenus, Inc.(b)		7,129		18,999
AgeX Therapeutics, Inc.(a)(b)		346		292
Agios Pharmaceuticals, Inc.(b)		3,203		131,771
Aimmune Therapeutics, Inc.(a)(b)		2,351		40,249
Akcea Therapeutics, Inc.(a)(b)		626		10,680
Akebia Therapeutics, Inc.(b)		6,186		50,107
Akero Therapeutics, Inc.(b)		398		8,119
Albireo Pharma, Inc.(b)		610		13,701
Aldeyra Therapeutics, Inc.(b)		927		2,920
Alector, Inc.(a)(b)		1,628		40,244
Alkermes PLC(b)		8,379		114,876
Allakos, Inc.(a)(b)		972		63,919
Allogene Therapeutics, Inc.(a)(b)		2,191		63,320
Alnylam Pharmaceuticals, Inc.(b)		5,732		754,904
AMAG Pharmaceuticals, Inc.(a)(b)		1,473		11,828
Amicus Therapeutics, Inc.(b)		13,809		163,084
AnaptysBio, Inc.(b)		1,553		24,258
Anavex Life Sciences Corp.(b)		2,395		8,287
Apellis Pharmaceuticals, Inc.(b)		3,036		104,044
Applied Therapeutics, Inc.(a)(b)		402		14,371
Aprea Therapeutics, Inc.(a)(b)		294		9,346
Arcus Biosciences, Inc.(b)		1,538		40,619
Arcutis Biotherapeutics, Inc.(b)		494		14,682
Ardelyx, Inc.(b)		2,965		19,510
Arena Pharmaceuticals, Inc.(b)		2,670		130,750

Security	Shares		Value
Biotechnology (continued)
Arrowhead Pharmaceuticals, Inc.(b)		5,434	$	187,093
Atara Biotherapeutics, Inc.(b)		2,555		21,181
Athenex, Inc.(b)		3,993		35,697
Athersys, Inc.(a)(b)		8,186		18,828
Atreca, Inc., Class A(b)		815		12,453
Avid Bioservices, Inc.(b)		2,722		16,604
Avrobio, Inc.(b)		1,113		14,324
Baudax Bio, Inc.(b)		302		929
Beam Therapeutics, Inc.(a)(b)		583		9,299
Beyondspring, Inc.(b)		642		9,213
BioCryst Pharmaceuticals, Inc.(b)		9,301		36,367
Biohaven Pharmaceutical Holding Co. Ltd.(a)(b)		2,286		107,671
Biospecifics Technologies Corp.(a)(b)		373		21,227
Bioxcel Therapeutics, Inc.(b)		345		12,765
Black Diamond Therapeutics, Inc.(a)(b)		740		27,410
Bluebird Bio, Inc.(b)		3,026		163,041
Blueprint Medicines Corp.(b)		2,859		168,195
Bridgebio Pharma, Inc.(b)		4,084		124,685
Cabaletta Bio, Inc.(b)		255		1,849
Calithera Biosciences, Inc.(b)		2,652		16,257
Calyxt, Inc.(b)		478		2,084
CareDx, Inc.(a)(b)		2,140		54,313
CASI Pharmaceuticals, Inc.(a)(b)		2,011		3,740
Castle Biosciences, Inc.(a)(b)		655		20,259
Catalyst Pharmaceuticals, Inc.(b)		3,866		18,325
CEL-SCI Corp.(a)(b)		1,585		27,896
Celcuity, Inc.(a)(b)		238		1,430
Cellular Biomedicine Group, Inc.(b)		603		8,743
Centogene NV(b)		106		2,067
Checkpoint Therapeutics, Inc.(b)		1,158		2,038
ChemoCentryx, Inc.(b)		2,157		114,343
Chiasma, Inc.(b)		1,470		7,600
Chimerix, Inc.(b)		1,809		4,161
Clovis Oncology, Inc.(a)(b)		2,478		18,858
Coherus Biosciences, Inc.(b)		3,195		53,037
Concert Pharmaceuticals, Inc.(b)		1,277		12,744
Constellation Pharmaceuticals, Inc.(b)		1,096		39,434
Contra GTX, Inc.(a)(b)(c)		23		47
Corbus Pharmaceuticals Holdings, Inc.(a)(b)		2,476		16,044
Cortexyme, Inc.(a)(b)		706		32,208
Crinetics Pharmaceuticals, Inc.(b)		563		9,391
Cue Biopharma, Inc.(a)(b)		969		24,787
Cyclerion Therapeutics, Inc.(a)(b)		984		3,808
Cytokinetics, Inc.(a)(b)		2,996		45,270
CytomX Therapeutics, Inc.(b)		2,816		29,061
Deciphera Pharmaceuticals, Inc.(b)		1,128		65,401
Denali Therapeutics, Inc.(b)		2,962		64,749
Dicerna Pharmaceuticals, Inc.(b)		2,798		55,121
Dynavax Technologies Corp.(b)		4,678		19,881
Eagle Pharmaceuticals, Inc.(b)		548		27,937
Editas Medicine, Inc.(a)(b)		2,856		66,031
Eidos Therapeutics, Inc.(b)		659		30,604

4

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Biotechnology (continued)
Eiger Biopharmaceuticals, Inc.(b)		1,515	$	11,272
Emergent Biosolutions, Inc.(b)		2,422		179,107
Enanta Pharmaceuticals, Inc.(b)		1,019		47,251
Enochian Biosciences, Inc.(b)		782		2,674
Epizyme, Inc.(a)(b)		4,224		69,527
Esperion Therapeutics, Inc.(a)(b)		1,254		49,658
Evelo Biosciences, Inc.(a)(b)		541		2,997
Exact Sciences Corp.(a)(b)		7,458		589,033
Exelixis, Inc.(b)		15,919		393,120
Fate Therapeutics, Inc.(b)		3,222		88,218
FibroGen, Inc.(b)		4,276		157,742
Five Prime Therapeutics, Inc.(a)(b)		1,464		4,802
Flexion Therapeutics, Inc.(a)(b)		1,623		17,269
Frequency Therapeutics, Inc.(b)		286		4,550
G1 Therapeutics, Inc.(a)(b)		2,076		27,258
Galectin Therapeutics, Inc.(a)(b)		2,234		5,551
Geron Corp.(a)(b)		8,943		10,642
Global Blood Therapeutics, Inc.(a)(b)		3,041		232,697
GlycoMimetics, Inc.(a)(b)		1,412		3,939
Gossamer Bio, Inc.(b)		1,782		23,202
Gritstone Oncology, Inc.(a)(b)		1,294		9,071
Halozyme Therapeutics, Inc.(b)		7,152		162,029
Harpoon Therapeutics, Inc.(b)		320		4,032
Heron Therapeutics, Inc.(a)(b)		4,708		67,136
Homology Medicines, Inc.(b)		1,203		14,520
Hookipa Pharma, Inc.(b)		459		4,067
IGM Biosciences, Inc.(b)		335		18,348
ImmunoGen, Inc.(b)		9,858		40,221
Immunomedics, Inc.(b)		10,275		312,154
Inovio Pharmaceuticals, Inc.(a)(b)		4,759		57,251
Insmed, Inc.(a)(b)		4,770		109,710
Intellia Therapeutics, Inc.(a)(b)		2,092		28,179
Intercept Pharmaceuticals, Inc.(a)(b)		1,354		110,920
Invitae Corp.(a)(b)		4,241		70,189
Ionis Pharmaceuticals, Inc.(b)		6,805		377,882
Iovance Biotherapeutics, Inc.(b)		6,316		203,059
Ironwood Pharmaceuticals, Inc.(b)		8,549		85,490
Jounce Therapeutics, Inc.(a)(b)		663		3,249
Kadmon Holdings, Inc.(b)		7,713		33,166
KalVista Pharmaceuticals, Inc.(b)		1,035		11,292
Karuna Therapeutics, Inc.(b)		607		50,430
Karyopharm Therapeutics, Inc.(a)(b)		3,248		71,618
Kezar Life Sciences, Inc.(b)		1,483		6,970
Kindred Biosciences, Inc.(b)		1,751		8,790
Kiniksa Pharmaceuticals Ltd., Class A(a)(b)		689		13,746
Kodiak Sciences, Inc.(a)(b)		1,586		86,516
Krystal Biotech, Inc.(a)(b)		619		29,211
Kura Oncology, Inc.(b)		1,590		23,134
La Jolla Pharmaceutical Co.(a)(b)		861		6,251
Lexicon Pharmaceuticals, Inc.(a)(b)		1,794		3,391
Ligand Pharmaceuticals, Inc.(b)		933		91,966
Lineage Cell Therapeutics, Inc.(a)(b)		4,804		4,083
LogicBio Therapeutics, Inc.(b)		379		2,168

Security	Shares		Value
Biotechnology (continued)
MacroGenics, Inc.(b)		2,334	$	16,805
Madrigal Pharmaceuticals, Inc.(a)(b)		503		42,091
Magenta Therapeutics, Inc.(b)		858		6,993
MannKind Corp.(a)(b)		10,852		14,108
Marker Therapeutics, Inc.(b)		1,128		3,108
MediciNova, Inc.(b)		1,987		10,233
MEI Pharma, Inc.(b)		4,819		13,059
MeiraGTx Holdings PLC(b)		826		11,374
Mersana Therapeutics, Inc.(b)		2,234		20,173
Millendo Therapeutics, Inc.(b)		651		1,087
Minerva Neurosciences, Inc.(b)		1,288		11,553
Mirati Therapeutics, Inc.(a)(b)		1,593		135,469
Mirum Pharmaceuticals, Inc.(b)		259		4,377
Moderna, Inc.(b)		11,903		547,419
Molecular Templates, Inc.(b)		966		15,678
Momenta Pharmaceuticals, Inc.(b)		5,893		186,808
Morphic Holding, Inc.(b)		509		6,927
Mustang Bio, Inc.(b)		1,547		4,270
Myriad Genetics, Inc.(b)		3,366		52,038
Natera, Inc.(b)		3,286		121,713
Neon Therapeutics, Inc.(b)		541		1,563
Neurocrine Biosciences, Inc.(a)(b)		4,910		481,867
NextCure, Inc.(b)		627		20,327
Novavax, Inc.(a)(b)		1,894		34,338
Oncocyte Corp.(a)(b)		663		1,790
OPKO Health, Inc.(a)(b)		17,288		38,379
Organogenesis Holdings, Inc.(a)(b)		528		1,959
Oyster Point Pharma, Inc.(b)		274		8,056
Palatin Technologies, Inc.(a)(b)		8,861		4,293
PDL BioPharma, Inc.(b)		5,397		18,296
Pfenex, Inc.(b)		1,451		8,343
PhaseBio Pharmaceuticals, Inc.(b)		571		2,204
Pieris Pharmaceuticals, Inc.(b)		2,480		6,572
PolarityTE, Inc.(b)		391		403
Portola Pharmaceuticals, Inc.(a)(b)		4,375		30,975
Precigen, Inc.(a)(b)		5,036		18,130
Precision BioSciences, Inc.(a)(b)		1,733		11,923
Prevail Therapeutics, Inc.(a)(b)		661		9,551
Principia Biopharma, Inc.(a)(b)		1,046		65,040
Progenics Pharmaceuticals, Inc.(b)		4,138		16,304
Protagonist Therapeutics, Inc.(b)		866		5,846
Prothena Corp. PLC(b)		1,951		21,890
PTC Therapeutics, Inc.(b)		3,189		162,384
Puma Biotechnology, Inc.(a)(b)		1,511		15,186
Radius Health, Inc.(b)		2,221		34,847
Rapt Therapeutics, Inc.(b)		116		1,762
Recro Pharma, Inc.(b)		960		8,122
REGENXBIO, Inc.(b)		1,851		73,707
Replimune Group, Inc.(b)		661		11,957
Retrophin, Inc.(b)		2,373		36,117
Revolution Medicines, Inc.(b)		904		28,268
Rhythm Pharmaceuticals, Inc.(b)		1,435		27,035
Rigel Pharmaceuticals, Inc.(b)		8,116		14,528
Rocket Pharmaceuticals, Inc.(a)(b)		1,841		27,247

5

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Biotechnology (continued)
Rubius Therapeutics, Inc.(a)(b)		1,843	$	11,150
Sage Therapeutics, Inc.(b)		2,741		106,844
Sangamo Therapeutics, Inc.(a)(b)		6,313		51,451
Sarepta Therapeutics, Inc.(a)(b)		3,761		443,347
Savara, Inc.(a)(b)		1,819		4,384
Scholar Rock Holding Corp.(b)		858		14,097
Seattle Genetics, Inc.(b)		6,214		852,747
Seres Therapeutics, Inc.(b)		1,943		7,150
Solid Biosciences, Inc.(b)		943		2,188
Sorrento Therapeutics, Inc.(a)(b)		6,216		14,110
Spectrum Pharmaceuticals, Inc.(b)		5,365		15,558
Spero Therapeutics, Inc.(b)		637		7,918
SpringWorks Therapeutics, Inc.(a)(b)		704		21,303
Stemline Therapeutics, Inc.(a)(b)		2,350		12,290
Stoke Therapeutics, Inc.(b)		1,068		22,460
Strongbridge Biopharma PLC(b)		1,475		4,219
Sutro Biopharma, Inc.(b)		500		4,925
Syndax Pharmaceuticals, Inc.(a)(b)		1,105		19,890
Synlogic, Inc.(a)(b)		699		1,454
Syros Pharmaceuticals, Inc.(a)(b)		1,641		13,834
TCR2 Therapeutics, Inc.(a)(b)		567		5,409
TG Therapeutics, Inc.(a)(b)		4,245		49,921
Tocagen, Inc.(b)		867		1,014
Translate Bio, Inc.(a)(b)		1,679		21,558
Turning Point Therapeutics, Inc.(b)		1,537		79,171
Twist Bioscience Corp.(b)		1,369		44,780
Tyme Technologies, Inc.(a)(b)		3,461		5,607
Ultragenyx Pharmaceutical, Inc.(a)(b)		2,947		178,087
United Therapeutics Corp.(b)		2,285		250,345
UNITY Biotechnology, Inc.(b)		1,418		9,203
UroGen Pharma Ltd.(b)		735		16,324
Vanda Pharmaceuticals, Inc.(b)		3,016		34,684
VBI Vaccines, Inc.(a)(b)		11,364		13,864
Veracyte, Inc.(a)(b)		2,658		71,686
Vericel Corp.(b)		2,140		31,030
Viela Bio, Inc.(b)		266		10,808
Viking Therapeutics, Inc.(a)(b)		3,130		18,029
Vir Biotechnology, Inc.(b)		238		7,261
Voyager Therapeutics, Inc.(a)(b)		1,185		12,810
X4 Pharmaceuticals, Inc.(a)(b)		810		7,541
XBiotech, Inc.(a)(b)		641		10,141
Xencor, Inc.(b)		2,545		74,390
Y-mAbs Therapeutics, Inc.(b)		1,256		42,176
ZIOPHARM Oncology, Inc.(b)		10,961		30,691
				13,511,082
Building Products — 1.6%
AAON, Inc.(a)		2,031		96,757
Advanced Drainage Systems, Inc.		2,363		95,796
Allegion PLC		4,891		491,741
Ameresco, Inc., Class A(b)		1,102		19,902
American Woodmark Corp.(a)(b)		938		48,223
AO Smith Corp.		7,204		305,306
Apogee Enterprises, Inc.		1,285		26,265

Security	Shares		Value
Building Products (continued)
Armstrong Flooring, Inc.(a)(b)		926	$	1,945
Armstrong World Industries, Inc.		2,518		194,087
Builders FirstSource, Inc.(b)		6,090		111,751
Caesarstone Ltd.		1,162		11,399
Cornerstone Building Brands, Inc.(a)(b)		2,278		12,142
CSW Industrials, Inc.		884		58,556
Fortune Brands Home & Security, Inc.		7,398		356,584
Gibraltar Industries, Inc.(b)		1,749		80,979
Griffon Corp.		2,124		34,855
Insteel Industries, Inc.		890		15,637
JELD-WEN Holding, Inc.(b)		3,905		49,593
Lennox International, Inc.(a)		1,858		346,851
Masonite International Corp.(b)		1,337		78,990
Owens Corning		5,789		251,011
Patrick Industries, Inc.		1,186		48,887
PGT Innovations, Inc.(b)		2,759		28,528
Quanex Building Products Corp.		1,530		19,079
Resideo Technologies, Inc.(b)		6,881		35,300
Simpson Manufacturing Co., Inc.		2,389		172,247
Trex Co., Inc.(b)		3,106		295,753
UFP Industries, Inc.		2,997		123,237
				3,411,401
Capital Markets — 1.9%
Affiliated Managers Group, Inc.		2,547		178,188
Ares Management Corp., Class A		3,668		123,061
Arlington Asset Investment Corp., Class A		1,624		4,596
Artisan Partners Asset Management, Inc., Class A		2,385		70,214
AssetMark Financial Holdings(b)		652		15,641
Associated Capital Group, Inc., Class A		121		4,631
B. Riley Financial, Inc.		1,208		24,027
BGC Partners, Inc., Class A		17,819		55,150
Blucora, Inc.(b)		2,731		38,425
BrightSphere Investment Group PLC(b)		3,160		23,416
Cohen & Steers, Inc.		1,293		74,658
Cowen, Inc., Class A		1,204		13,184
Diamond Hill Investment Group, Inc.		163		17,858
Donnelley Financial Solutions, Inc.(a)(b)		1,549		11,277
Eaton Vance Corp.		5,703		209,300
Evercore, Inc., Class A		2,103		108,515
Federated Hermes, Inc.		4,950		112,711
Focus Financial Partners, Inc., Class A(b)		1,740		41,516
GAIN Capital Holdings, Inc.		954		6,239
GAMCO Investors, Inc., Class A		288		3,727
Greenhill & Co., Inc.		761		8,120
Hamilton Lane, Inc., Class A		1,180		76,523
Hannon Armstrong Sustainable Infrastructure Capital, Inc.		3,450		96,565
Houlihan Lokey, Inc.		2,285		135,683
INTL. FCStone, Inc.(b)		925		36,963
Janus Henderson Group PLC		8,519		152,490

6

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Capital Markets (continued)
Lazard Ltd., Class A		5,114	$	140,635
Legg Mason, Inc.		4,649		231,660
LPL Financial Holdings, Inc.		4,357		262,378
MarketAxess Holdings, Inc.		1,963		893,185
Medallion Financial Corp.(a)(b)		819		2,359
Moelis & Co., Class A		2,611		77,991
Oppenheimer Holdings, Inc., Class A		470		9,673
Piper Sandler Cos		752		40,540
PJT Partners, Inc., Class A		1,238		60,216
Pzena Investment Management, Inc., Class A		654		3,218
Safeguard Scientifics, Inc.(a)		1,114		7,898
Sculptor Capital Management, Inc.		825		12,094
SEI Investments Co.		6,908		352,032
Siebert Financial Corp.(b)		466		2,656
Silvercrest Asset Management Group, Inc., Class A		334		3,400
Stifel Financial Corp.		3,349		148,294
Virtu Financial, Inc., Class A		2,856		66,745
Virtus Investment Partners, Inc.		318		25,844
Waddell & Reed Financial, Inc., Class A		4,007		58,302
Westwood Holdings Group, Inc.		391		9,005
WisdomTree Investments, Inc.		6,816		22,084
				4,072,887
Chemicals — 2.1%
Advanced Emissions Solutions, Inc.		699		5,194
AdvanSix, Inc.(b)		1,379		16,796
Albemarle Corp.		5,578		342,657
American Vanguard Corp.		1,427		17,937
Ashland Global Holdings, Inc.		2,943		181,554
Axalta Coating Systems Ltd.(b)		11,116		219,430
Balchem Corp.		1,760		157,062
Cabot Corp.		2,950		99,976
CF Industries Holdings, Inc.		11,903		327,332
Chase Corp.		362		34,122
Chemours Co.		8,725		102,344
Codexis, Inc.(b)		3,118		36,200
Element Solutions, Inc.(a)(b)		11,640		119,310
Ferro Corp.(a)(b)		4,495		44,815
Flotek Industries, Inc.(b)		1,723		1,546
FutureFuel Corp.		947		9,830
GCP Applied Technologies, Inc.(b)		3,113		53,295
Hawkins, Inc.		459		17,180
HB Fuller Co.		2,605		95,838
Huntsman Corp.		11,155		187,516
Ingevity Corp.(b)		2,222		115,366
Innospec, Inc.		1,279		92,753
Intrepid Potash, Inc.(a)(b)		4,093		3,942
Koppers Holdings, Inc.(b)		903		14,231
Kraton Corp.(b)		1,490		23,259
Kronos Worldwide, Inc.		1,095		10,392
Landec Corp.(b)		1,196		13,335
Livent Corp.(a)(b)		6,996		43,375

Security	Shares		Value
Chemicals (continued)
LSB Industries, Inc.(b)		806	$	1,604
Marrone Bio Innovations, Inc.(a)(b)		4,139		3,022
Minerals Technologies, Inc.		1,843		81,166
NewMarket Corp.		362		148,941
Olin Corp.		8,709		116,265
Orion Engineered Carbons SA		3,189		29,052
PolyOne Corp.		4,920		114,587
PQ Group Holdings, Inc.(b)		2,294		26,886
Quaker Chemical Corp.(a)		656		99,791
Rayonier Advanced Materials, Inc.		1,917		3,412
RPM International, Inc.		6,845		454,576
Scotts Miracle-Gro Co.		2,088		258,975
Sensient Technologies Corp.		2,144		102,462
Stepan Co.		1,094		104,368
Trecora Resources(b)		1,921		11,334
Tredegar Corp.		1,325		21,836
Trinseo SA		2,347		47,996
Tronox Holdings PLC, Class A(b)		5,287		36,057
Valhi, Inc.		1,055		929
Valvoline, Inc.		10,191		175,183
Westlake Chemical Corp.		1,925		83,641
WR Grace & Co.		2,908		137,345
				4,446,015
Commercial Services & Supplies — 1.5%
ABM Industries, Inc.		3,594		123,957
ACCO Brands Corp.		5,798		42,905
ADT, Inc.		6,666		38,196
Advanced Disposal Services, Inc.(b)		3,891		125,485
BrightView Holdings, Inc.(b)		1,583		20,294
Brink’s Co.		2,682		137,104
Casella Waste Systems, Inc., Class A(a)(b)		2,436		112,982
CECO Environmental Corp.(b)		1,268		6,873
Charah Solutions, Inc.(b)		461		742
Cimpress PLC(a)(b)		1,014		73,809
Clean Harbors, Inc.(b)		2,800		149,604
Covanta Holding Corp.		6,504		50,601
Deluxe Corp.		2,382		67,101
Encore Capital Group, Inc.(b)		1,703		44,244
Ennis, Inc.		1,164		21,662
Harsco Corp.(a)(b)		3,376		33,693
Healthcare Services Group, Inc.		3,784		96,454
Heritage-Crystal Clean, Inc.(b)		737		13,524
Herman Miller, Inc.		3,209		72,331
HNI Corp.		2,351		57,223
IAA, Inc.(b)		7,197		277,804
InnerWorkings, Inc.(a)(b)		1,916		3,391
Interface, Inc.		3,114		28,773
KAR Auction Services, Inc.		6,954		104,171
Kimball International, Inc., Class B		1,833		22,491
Knoll, Inc.		2,280		26,585
McGrath RentCorp		1,337		72,933
Mobile Mini, Inc.		2,522		72,054

7

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Commercial Services & Supplies (continued)
MSA Safety, Inc.		1,879	$	211,444
NL Industries, Inc.		244		817
Pitney Bowes, Inc.		8,148		28,763
Quad/Graphics, Inc.		1,346		5,007
Rollins, Inc.(a)		7,531		301,240
RR Donnelley & Sons Co.		2,959		5,060
SP Plus Corp.(b)		1,371		28,914
Steelcase, Inc., Class A		4,991		54,652
Stericycle, Inc.(a)(b)		4,833		235,851
Sykes Enterprises, Inc.(b)		2,197		62,900
Team, Inc.(b)		1,408		8,687
Tetra Tech, Inc.		2,801		210,859
UniFirst Corp.		819		137,715
US Ecology, Inc.		1,172		38,418
Viad Corp.		1,268		30,394
VSE Corp.		420		8,072
				3,265,779
Communications Equipment — 0.9%
Acacia Communications, Inc.(b)		2,051		138,832
ADTRAN, Inc.		1,898		19,511
Applied Optoelectronics, Inc.(a)(b)		780		8,362
Bel Fuse, Inc., Class B		434		3,238
CalAmp Corp.(b)		1,662		11,169
Calix, Inc.(b)		2,207		25,380
Cambium Networks Corp.(b)		195		1,117
Casa Systems, Inc.(b)		1,337		6,859
Ciena Corp.(b)		8,222		380,267
Clearfield, Inc.(b)		451		5,876
CommScope Holding Co., Inc.(b)		10,092		111,113
Comtech Telecommunications Corp.		881		16,307
DASAN Zhone Solutions, Inc.(b)		238		1,526
Digi International, Inc.(b)		1,345		15,266
EchoStar Corp., Class A(a)(b)		2,809		88,624
Extreme Networks, Inc.(b)		5,674		19,292
Harmonic, Inc.(a)(b)		5,129		29,748
Infinera Corp.(b)		10,229		63,062
Inseego Corp.(a)(b)		1,907		22,789
InterDigital, Inc.		1,690		97,631
KVH Industries, Inc.(b)		703		6,524
Loral Space & Communications, Inc.(b)		616		13,552
Lumentum Holdings, Inc.(b)		3,865		312,717
NETGEAR, Inc.(b)		1,378		33,044
Plantronics, Inc.		1,992		28,127
Ribbon Communications, Inc.(b)		3,082		11,234
Tessco Technologies, Inc.		241		1,485
Ubiquiti, Inc.(a)		492		79,719
ViaSat, Inc.(a)(b)		3,148		133,475
Viavi Solutions, Inc.(a)(b)		12,402		149,816
				1,835,662
Construction & Engineering — 1.0%
AECOM(b)		8,078		292,908
Aegion Corp.(b)		1,843		29,580

Security	Shares		Value
Construction & Engineering (continued)
Arcosa, Inc.		2,642	$	98,467
Argan, Inc.		778		29,206
Comfort Systems USA, Inc.		1,906		63,470
Concrete Pumping Holdings, Inc.(b)		1,248		3,544
Construction Partners, Inc., Class A(b)		908		16,644
Dycom Industries, Inc.(b)		1,682		54,833
EMCOR Group, Inc.		2,891		183,665
Fluor Corp.		7,169		83,877
Granite Construction, Inc.		2,451		40,295
Great Lakes Dredge & Dock Corp.(a)(b)		3,414		30,180
IES Holdings, Inc.(a)(b)		371		7,327
Jacobs Engineering Group, Inc.		6,809		563,445
KBR, Inc.		7,762		157,258
MasTec, Inc.(a)(b)		3,349		120,229
MYR Group, Inc.(b)		961		28,830
Northwest Pipe Co.(b)		482		11,722
NV5 Global, Inc.(a)(b)		635		29,686
Primoris Services Corp.		2,439		38,073
Quanta Services, Inc.(a)		7,467		271,500
Sterling Construction Co., Inc.(b)		1,245		12,301
Tutor Perini Corp.(b)		2,928		20,496
WillScot Corp.(b)		3,079		35,871
				2,223,407
Construction Materials — 0.1%
Eagle Materials, Inc.		2,202		134,344
Forterra, Inc.(b)		804		6,561
Summit Materials, Inc., Class A(b)		6,084		91,929
United States Lime & Minerals, Inc.		103		8,250
US Concrete, Inc.(b)		791		15,172
				256,256
Consumer Discretionary — 0.0%
Acushnet Holdings Corp.		1,850		50,690
American Outdoor Brands Corp.(b)		2,216		20,974
At Home Group, Inc.(b)		1,880		4,418
Camping World Holdings, Inc., Class A		1,472		13,057
				89,139
Consumer Finance — 0.5%
Credit Acceptance Corp.(a)(b)		558		173,856
Curo Group Holdings Corp.		685		6,384
Elevate Credit, Inc.(b)		1,091		2,040
Enova International, Inc.(a)(b)		1,586		25,440
Ezcorp, Inc., Class A(a)(b)		3,554		19,902
FirstCash, Inc.		2,254		161,927
Green Dot Corp., Class A(b)		2,528		77,104
I3 Verticals, Inc., Class A(a)(b)		970		22,543
LendingClub Corp.(b)		3,527		27,052
Navient Corp.		10,563		80,490
Nelnet, Inc., Class A		975		46,946
OneMain Holdings, Inc.		3,599		87,132
Oportun Financial Corp.(a)(b)		343		2,566
PRA Group, Inc.(a)(b)		2,571		71,320
Regional Management Corp.(b)		350		5,579

8

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Consumer Finance (continued)
Santander Consumer USA Holdings, Inc.		5,577	$	86,945
SLM Corp.		22,867		190,711
World Acceptance Corp.(b)		361		24,494
				1,112,431
Containers & Packaging — 1.4%
AptarGroup, Inc.		3,396		363,644
Ardagh Group SA		1,258		15,650
Avery Dennison Corp.		4,445		490,684
Berry Global Group, Inc.(a)(b)		6,843		272,283
Crown Holdings, Inc.(a)(b)		7,020		452,158
Graphic Packaging Holding Co.		14,907		199,008
Greif, Inc., Class A		1,117		37,855
Greif, Inc., Class B		337		13,396
Myers Industries, Inc.		1,673		20,678
O-I Glass, Inc.		8,318		68,540
Packaging Corp. of America		5,057		488,759
Sealed Air Corp.		8,414		240,556
Silgan Holdings, Inc.		3,933		135,689
Sonoco Products Co.		5,268		257,289
UFP Technologies, Inc.(b)		547		23,521
				3,079,710
Distributors — 0.2%
Core-Mark Holding Co., Inc.		2,145		61,647
Funko, Inc., Class A(a)(b)		1,116		4,776
Greenlane Holdings, Inc., Class A(b)		193		618
Pool Corp.		2,050		433,903
Weyco Group, Inc.		265		5,043
				505,987
Diversified Consumer Services — 1.2%
2U, Inc.(b)		3,104		73,720
Adtalem Global Education, Inc.(b)		2,874		91,307
American Public Education, Inc.(b)		857		22,085
Bright Horizons Family Solutions, Inc.(b)		3,082		358,899
Carriage Services, Inc.		799		12,001
Chegg, Inc.(b)		6,358		271,804
Collectors Universe, Inc.		450		9,886
frontdoor, Inc.(b)		4,672		180,853
Graham Holdings Co., Class B		228		88,922
Grand Canyon Education, Inc.(b)		2,616		225,028
H&R Block, Inc.		10,429		173,643
Houghton Mifflin Harcourt Co.(b)		4,777		7,643
K12, Inc.(b)		2,290		52,006
Laureate Education, Inc., Class A(b)		5,981		56,640
Matthews International Corp., Class A		1,741		41,680
OneSpaWorld Holdings Ltd.		2,225		14,485
Regis Corp.(b)		1,187		14,743
Select Interior Concepts, Inc., Class A(b)		881		2,819
Service Corp. International		9,220		338,743
ServiceMaster Global Holdings, Inc.(b)		7,097		241,653

Security	Shares		Value
Diversified Consumer Services (continued)
Strategic Education, Inc.		1,173	$	186,859
WW International, Inc.(a)(b)		2,681		68,392
				2,533,811
Diversified Financial Services — 0.7%
Alerus Financial Corp.		312		5,304
Cannae Holdings, Inc.(b)		3,981		125,601
FactSet Research Systems, Inc.		1,986		546,150
FGL Holdings		6,952		72,162
GWG Holdings, Inc.(b)		159		1,364
Jefferies Financial Group, Inc.		13,557		186,002
Marlin Business Services Corp.		464		4,937
Morningstar, Inc.		1,053		164,226
On Deck Capital, Inc.(b)		2,649		3,205
PICO Holdings, Inc.(b)		400		3,424
Tiptree, Inc.		1,087		6,946
Voya Financial, Inc.		7,083		319,939
				1,439,260
Diversified Telecommunication Services — 0.3%
8x8, Inc.(a)(b)		5,115		86,750
Anterix, Inc.(b)		530		27,825
ATN International, Inc.		618		38,390
Bandwidth, Inc., Class A(a)(b)		889		72,507
Cincinnati Bell, Inc.(b)		2,062		30,208
Cogent Communications Holdings, Inc.		2,243		188,031
Consolidated Communications Holdings, Inc.		2,595		16,271
IDT Corp., Class B(b)		677		3,656
Intelsat SA(a)(b)		3,513		4,391
Iridium Communications, Inc.(b)		5,403		121,595
Ooma, Inc.(b)		976		11,380
ORBCOMM, Inc.(b)		5,435		14,348
Pareteum Corp.(a)(b)		4,490		2,846
Vonage Holdings Corp.(b)		12,118		101,306
				719,504
Education Services — 0.0%
Perdoceo Education Corp.(b)		3,722		48,386
Electric Utilities — 1.3%
ALLETE, Inc.		2,805		161,456
Alliant Energy Corp.		12,655		614,400
El Paso Electric Co.		2,176		147,968
Hawaiian Electric Industries, Inc.		5,584		220,401
IDACORP, Inc.		2,658		243,951
MGE Energy, Inc.		1,743		112,702
OGE Energy Corp.		10,636		335,247
Otter Tail Corp.		2,074		92,044
Pinnacle West Capital Corp.		5,969		459,553
PNM Resources, Inc.		4,352		176,213
Portland General Electric Co.		4,827		225,855
Spark Energy, Inc., Class A		185		1,336
Unitil Corp.		671		33,758
				2,824,884

9

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Electrical Equipment — 1.1%
Acuity Brands, Inc.		2,049	$	177,423
Allied Motion Technologies, Inc.		341		9,828
American Superconductor Corp.(a)(b)		1,537		8,838
Atkore International Group, Inc.(b)		2,719		66,180
AZZ, Inc.		1,440		45,202
Bloom Energy Corp., Class A(a)(b)		2,708		20,770
Brady Corp., Class A		2,512		109,372
Encore Wire Corp.		1,130		51,731
Energous Corp.(a)(b)		872		1,945
EnerSys		2,239		130,735
Franklin Electric Co., Inc.		2,514		127,711
Generac Holdings, Inc.(b)		3,155		307,423
GrafTech International Ltd.		3,565		28,948
Hubbell, Inc.		2,906		361,594
nVent Electric PLC		8,342		155,578
Plug Power, Inc.(a)(b)		16,317		68,287
Powell Industries, Inc.		437		11,087
Preformed Line Products Co.		144		7,154
Regal-Beloit Corp.		2,211		157,003
Sensata Technologies Holding PLC(b)		8,431		306,720
Sunrun, Inc.(b)		6,092		85,471
Thermon Group Holdings, Inc.(b)		1,933		29,536
TPI Composites, Inc.(b)		1,780		31,203
Vicor Corp.(a)(b)		1,010		53,702
				2,353,441
Electronic Equipment, Instruments & Components — 3.0%
Agilysys, Inc.(b)		1,283		25,134
Airgain, Inc.(a)(b)		465		3,762
Akoustis Technologies, Inc.(a)(b)		1,438		13,028
Anixter International, Inc.(b)		1,577		146,440
Arlo Technologies, Inc.(b)		5,883		16,119
Arrow Electronics, Inc.(b)		4,200		264,264
Avnet, Inc.		5,296		158,986
Badger Meter, Inc.		1,533		90,493
Belden, Inc.		2,126		72,688
Benchmark Electronics, Inc.		2,022		41,775
Coda Octopus Group, Inc.(b)		146		891
Cognex Corp.		8,825		487,493
Coherent, Inc.(b)		1,319		168,661
CTS Corp.		1,845		42,730
Daktronics, Inc.		1,696		7,666
Dolby Laboratories, Inc., Class A		3,459		207,644
ePlus, Inc.(b)		730		51,647
Fabrinet(b)		1,863		116,903
FARO Technologies, Inc.(b)		959		52,640
Fitbit, Inc., Series A(b)		12,341		82,561
FLIR Systems, Inc.		7,195		312,263
II-VI, Inc.(a)(b)		4,838		166,524
Insight Enterprises, Inc.(b)		1,892		102,717

Security	Shares		Value
Electronic Equipment, Instruments & Components (continued)
IntriCon Corp.(b)		333	$	4,396
Iteris, Inc.(b)		2,183		8,710
Itron, Inc.(b)		1,817		126,863
Jabil, Inc.		7,954		226,212
KEMET Corp.		3,087		83,380
Kimball Electronics, Inc.(b)		1,238		16,738
Knowles Corp.(b)		4,374		68,016
Littelfuse, Inc.		1,275		185,181
Mesa Laboratories, Inc.(a)		219		52,122
Methode Electronics, Inc.		1,960		58,839
MTS Systems Corp.		1,297		27,587
Napco Security Technologies, Inc.(a)(b)		559		11,202
National Instruments Corp.		6,785		260,680
nLight, Inc.(b)		1,978		31,173
Novanta, Inc.(b)		1,806		156,923
OSI Systems, Inc.(b)		941		68,110
PAR Technology Corp.(b)		619		11,705
PC Connection, Inc.		454		20,861
Plexus Corp.(b)		1,555		97,483
Rogers Corp.(b)		983		109,152
Sanmina Corp.(b)		3,496		96,944
ScanSource, Inc.(b)		1,272		32,970
SYNNEX Corp.		2,162		189,305
Tech Data Corp.(b)		1,829		257,231
Trimble, Inc.(b)		13,391		463,730
TTM Technologies, Inc.(a)(b)		5,343		61,925
Universal Display Corp.(a)		2,256		338,671
Vishay Intertechnology, Inc.		7,202		119,481
Vishay Precision Group, Inc.(b)		484		11,190
Wrap Technologies, Inc.(a)(b)		281		1,363
Zebra Technologies Corp., Class A(b)		2,847		653,842
				6,485,014
Energy Equipment & Services — 0.3%
Apergy Corp.(a)(b)		4,377		40,312
Archrock, Inc.		7,657		36,830
Cactus, Inc., Class A		2,629		46,744
Covia Holdings Corp.(a)(b)		1,227		798
Dril-Quip, Inc.(a)(b)		2,005		66,426
Era Group, Inc.(b)		796		4,076
Exterran Corp.(b)		1,275		8,670
Forum Energy Technologies, Inc.(b)		3,590		1,544
Frank’s International NV(a)(b)		3,057		7,428
FTS International, Inc.(a)(b)		1,067		437
Geospace Technologies Corp.(b)		513		3,186
Helix Energy Solutions Group, Inc.(a)(b)		6,586		16,728
Helmerich & Payne, Inc.		6,007		118,758
Independence Contract Drilling, Inc.(a)(b)		121		943
KLX Energy Services Holdings, Inc.(a)(b)		793		1,031
Liberty Oilfield Services, Inc., Class A		2,581		12,182
Mammoth Energy Services, Inc.		557		468
Matrix Service Co.(b)		1,299		13,562

10

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Energy Equipment & Services (continued)
Nabors Industries Ltd.		326	$	4,802
National Energy Services Reunited Corp.(a)(b)		1,224		6,255
Natural Gas Services Group, Inc.(a)(b)		492		3,124
NCS Multistage Holdings, Inc.(b)		214		143
Newpark Resources, Inc.(b)		3,634		5,560
NexTier Oilfield Solutions Inc.(b)		7,953		18,451
Nine Energy Service, Inc.(a)(b)		685		993
Noble Corp. PLC(a)(b)		10,543		2,720
Oceaneering International, Inc.(a)(b)		4,777		24,554
Oil States International, Inc.(a)(b)		3,076		10,581
Pacific Drilling SA(a)(b)		1,221		782
Patterson-UTI Energy, Inc.		8,932		32,959
ProPetro Holding Corp.(a)(b)		3,898		16,528
RigNet, Inc.(b)		635		857
RPC, Inc.		2,458		8,382
SEACOR Holdings, Inc.(b)		881		24,897
SEACOR Marine Holdings, Inc.(b)		734		2,297
Seadrill Ltd.(a)(b)		2,350		1,348
Select Energy Services, Inc., Class A(a)(b)		2,934		14,083
Smart Sand, Inc.(a)(b)		957		794
Solaris Oilfield Infrastructure, Inc., Class A		1,565		10,705
TETRA Technologies, Inc.(b)		5,146		2,502
Tidewater, Inc.(b)		1,952		11,244
Transocean Ltd.(a)(b)		31,872		40,796
U.S Well Services, Inc.(a)(b)		792		366
Unit Corp.(a)(b)		2,256		763
				626,609
Entertainment — 0.4%
AMC Entertainment Holdings, Inc., Class A(a)		2,158		10,617
Glu Mobile, Inc.(b)		6,405		49,959
Madison Square Garden Entertainment Corp.(b)		976		80,715
Roku, Inc.(b)		4,550		551,597
World Wrestling Entertainment, Inc., Class A(a)		2,185		97,167
				790,055
Equity Real Estate Investment Trusts (REITs) — 8.7%
Acadia Realty Trust		4,848		60,067
Agree Realty Corp.		2,217		144,349
Alexander’s, Inc.		103		32,472
American Assets Trust, Inc.		2,555		72,358
American Campus Communities, Inc.		7,384		260,581
American Finance Trust, Inc.		5,023		38,727
American Homes 4 Rent, Class A		13,844		334,194
Americold Realty Trust		10,075		308,194
Anworth Mortgage Asset Corp.		3,996		6,873
Apartment Investment & Management Co., Class A		7,926		298,572

Security	Shares		Value
Equity Real Estate Investment Trusts (REITs) (continued)
Apollo Commercial Real Estate Finance, Inc.		8,835	$	72,005
Apple Hospitality REIT, Inc.		11,485		111,175
Ares Commercial Real Estate Corp.		1,280		9,920
Armada Hoffler Properties, Inc.		2,881		27,686
ARMOUR Residential REIT, Inc.		3,048		26,944
Ashford Hospitality Trust, Inc.		3,876		3,187
Blackstone Mortgage Trust, Inc., Class A(a)		6,625		155,886
Bluerock Residential Growth REIT, Inc.		667		3,882
Brandywine Realty Trust		8,921		99,558
Brixmor Property Group, Inc.		15,965		182,799
BRT Apartments Corp.		862		8,534
Camden Property Trust		4,880		429,782
Capstead Mortgage Corp.		5,946		30,860
Catchmark Timber Trust, Inc., Class A		2,262		17,779
CBL & Associates Properties, Inc.		7,378		2,132
Cedar Realty Trust, Inc.(a)		3,169		3,327
Chatham Lodging Trust		2,121		15,929
Cherry Hill Mortgage Investment Corp.		594		4,134
Chimera Investment Corp.		9,705		75,408
CIM Commercial Trust Corp.		546		5,564
City Office REIT, Inc.		2,726		27,533
Clipper Realty, Inc.		722		3,827
Colony Capital, Inc.		28,104		64,920
Columbia Property Trust, Inc.		6,191		88,469
Community Healthcare Trust, Inc.		973		36,196
CoreCivic, Inc.		6,208		81,449
CorEnergy Infrastructure Trust, Inc.		617		7,490
CorePoint Lodging, Inc.		1,741		7,573
CoreSite Realty Corp.		1,992		241,410
Corporate Office Properties Trust		6,024		159,154
Cousins Properties, Inc.		7,827		236,141
CubeSmart		10,181		256,561
CyrusOne, Inc.		5,961		418,164
DiamondRock Hospitality Co.		10,400		64,792
Diversified Healthcare Trust		12,682		39,441
Douglas Emmett, Inc.		9,068		276,483
Duke Realty Corp.		19,587		679,669
Easterly Government Properties, Inc.		4,047		108,905
EastGroup Properties, Inc.		1,978		209,668
Empire State Realty Trust, Inc., Class A		7,430		62,115
EPR Properties		4,154		122,211
Equity Commonwealth		6,261		212,561
Equity LifeStyle Properties, Inc.		9,167		552,862
Farmland Partners, Inc.		2,078		13,632
First Industrial Realty Trust, Inc.		6,524		246,411
Four Corners Property Trust, Inc.		3,801		85,104
Franklin Street Properties Corp.		5,863		31,895
Gaming and Leisure Properties, Inc.		10,736		303,185
Geo Group, Inc.		6,384		80,949
Getty Realty Corp.		1,882		51,115
Gladstone Commercial Corp.		1,431		22,610
Gladstone Land Corp.		1,023		13,729

11

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Equity Real Estate Investment Trusts (REITs) (continued)
Global Net Lease, Inc.		4,309	$	62,007
Healthcare Realty Trust, Inc.		6,756		198,559
Healthcare Trust of America, Inc., Class A		11,247		277,014
Hersha Hospitality Trust		2,669		13,959
Highwoods Properties, Inc.		5,526		214,464
Hudson Pacific Properties, Inc.		8,270		203,277
Independence Realty Trust, Inc.		4,977		50,118
Industrial Logistics Properties Trust		3,354		62,686
Innovative Industrial Properties, Inc.		831		65,200
Investors Real Estate Trust		615		38,517
Iron Mountain, Inc.		15,386		372,033
iStar, Inc.		2,933		29,389
JBG SMITH Properties		6,650		225,767
Jernigan Capital, Inc.		1,146		15,127
Kilroy Realty Corp.		5,507		342,866
Kimco Realty Corp.		22,414		244,537
Kite Realty Group Trust		4,685		47,928
Lamar Advertising Co., Class A		4,503		259,598
Lexington Realty Trust		13,146		137,376
Life Storage, Inc.		2,492		218,274
LTC Properties, Inc.		2,272		80,883
Macerich Co.		6,106		45,612
Mack-Cali Realty Corp.		4,730		76,579
Medical Properties Trust, Inc.		27,151		465,368
MFA Financial, Inc.		24,729		43,276
Monmouth Real Estate Investment Corp.		5,134		69,771
National Health Investors, Inc.		2,247		123,720
National Retail Properties, Inc.		9,195		300,125
National Storage Affiliates Trust		3,139		89,399
New Residential Investment Corp.		22,365		136,203
New Senior Investment Group, Inc.		4,049		13,402
New York Mortgage Trust, Inc.		19,685		42,913
NexPoint Residential Trust, Inc.		991		29,799
Office Properties Income Trust		2,488		68,171
Omega Healthcare Investors, Inc.		11,954		348,459
One Liberty Properties, Inc.		886		13,928
Orchid Island Capital, Inc.		3,022		11,907
Outfront Media, Inc.		7,785		122,147
Paramount Group, Inc.		10,445		100,794
Park Hotels & Resorts, Inc.		12,678		120,568
Pebblebrook Hotel Trust		7,173		84,928
Pennsylvania Real Estate Investment Trust(a)		2,745		2,772
PennyMac Mortgage Investment Trust(f)		5,145		53,508
Physicians Realty Trust		10,010		154,354
Piedmont Office Realty Trust, Inc., Class A		6,547		113,590
PotlatchDeltic Corp.		3,533		124,044
Preferred Apartment Communities, Inc., Class A		2,268		16,806
PS Business Parks, Inc.		1,071		138,255
QTS Realty Trust, Inc., Class A		3,019		188,778

Security	Shares		Value
Equity Real Estate Investment Trusts (REITs) (continued)
Rayonier, Inc.		6,817	$	163,813
Redwood Trust, Inc.		5,341		21,898
Regency Centers Corp.		8,669		380,656
Retail Opportunity Investments Corp.		6,413		62,238
Retail Properties of America, Inc., Class A		11,521		71,430
Retail Value, Inc.		723		10,462
Rexford Industrial Realty, Inc.		6,089		247,944
RLJ Lodging Trust		8,841		82,133
RPT Realty		4,025		27,451
Ryman Hospitality Properties, Inc.		2,587		91,425
Sabra Health Care REIT, Inc.		10,936		140,200
Safehold, Inc.		785		45,342
Saul Centers, Inc.		553		18,039
Seritage Growth Properties, Class A		2,221		23,498
Service Properties Trust		9,706		67,263
SITE Centers Corp.		8,057		48,825
SL Green Realty Corp.		4,062		215,489
Spirit Realty Capital, Inc.		5,361		164,904
STAG Industrial, Inc.		7,684		201,705
Starwood Property Trust, Inc.		14,596		188,872
STORE Capital Corp.		11,043		221,633
Summit Hotel Properties, Inc.		4,852		29,403
Sun Communities, Inc.		4,795		644,448
Sunstone Hotel Investors, Inc.		11,952		109,839
Tanger Factory Outlet Centers, Inc.(a)		5,341		40,164
Taubman Centers, Inc.		3,183		137,187
Terreno Realty Corp.		3,385		185,566
UMH Properties, Inc.		2,565		33,319
Uniti Group, Inc.		10,478		73,975
Universal Health Realty Income Trust		696		74,444
Urban Edge Properties		6,108		70,242
Urstadt Biddle Properties, Inc., Class A		1,549		22,631
VEREIT, Inc.		57,759		316,519
VICI Properties, Inc.		24,540		427,487
Washington Prime Group, Inc.		9,745		8,379
Washington Real Estate Investment Trust		4,512		105,220
Weingarten Realty Investors		6,543		119,017
Whitestone REIT		2,346		15,906
Xenia Hotels & Resorts, Inc.		6,155		59,704
				18,876,527
Food & Staples Retailing — 0.7%
Andersons, Inc.		1,902		32,277
BJ’s Wholesale Club Holdings, Inc.(a)(b)		5,640		148,388
Casey’s General Stores, Inc.		1,962		297,066
Chefs’ Warehouse, Inc.(b)		1,165		16,403
Grocery Outlet Holding Corp.(b)		3,775		125,594
HF Foods Group, Inc.(a)(b)		1,026		8,341
Ingles Markets, Inc., Class A		748		30,541
Natural Grocers by Vitamin Cottage, Inc.		931		10,492
Performance Food Group Co.(b)		6,490		190,482

12

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Food & Staples Retailing (continued)
PriceSmart, Inc.		1,108	$	70,402
Rite Aid Corp.(a)(b)		3,269		46,845
SpartanNash Co.		1,750		30,013
Sprouts Farmers Market, Inc.(b)		6,442		133,865
U.S. Foods Holding Corp.(a)(b)		11,529		247,874
United Natural Foods, Inc.(b)		3,097		32,952
Village Super Market, Inc., Class A		404		9,708
Weis Markets, Inc.		471		23,564
				1,454,807
Food Products — 1.6%
Alico, Inc.		216		6,331
B&G Foods, Inc.		3,112		60,435
Beyond Meat, Inc.(b)		2,578		255,196
Bridgford Foods Corp.(a)(b)		72		1,312
Bunge Ltd.		7,238		287,131
Cal-Maine Foods, Inc.		1,734		71,978
Calavo Growers, Inc.(a)		752		43,616
Darling Ingredients, Inc.(b)		8,629		177,671
Farmer Bros Co.(a)(b)		808		7,466
Flowers Foods, Inc.		10,498		233,895
Fresh Del Monte Produce, Inc.		1,473		41,995
Freshpet, Inc.(b)		1,889		142,450
Griffin Industrial Realty, Inc.		43		1,652
Hain Celestial Group, Inc.(a)(b)		4,541		117,339
Hostess Brands, Inc.(b)		6,808		81,832
Ingredion, Inc.		3,593		291,752
J&J Snack Foods Corp.		833		105,816
John B Sanfilippo & Son, Inc.		478		39,258
Lamb Weston Holdings, Inc.		7,780		477,381
Lancaster Colony Corp.		976		131,399
Limoneira Co.(a)		660		8,811
Pilgrim’s Pride Corp.(b)		3,057		67,254
Post Holdings, Inc.(b)		3,493		320,832
Sanderson Farms, Inc.		1,061		144,445
Seneca Foods Corp., Class A(b)		299		10,758
Simply Good Foods Co.(b)		4,535		85,485
Tootsie Roll Industries, Inc.		1,060		37,238
TreeHouse Foods, Inc.(b)		2,992		154,776
				3,405,504
Gas Utilities — 1.1%
Atmos Energy Corp.		6,440		656,687
Chesapeake Utilities Corp.		902		79,268
National Fuel Gas Co.		4,440		182,040
New Jersey Resources Corp.		5,091		171,974
Northwest Natural Holding Co.		1,596		103,900
ONE Gas, Inc.		2,832		225,739
RGC Resources, Inc.		365		9,077
South Jersey Industries, Inc.		5,008		143,179
Southwest Gas Holdings, Inc.		2,938		222,700
Spire, Inc.		2,699		196,919

Security	Shares		Value
Gas Utilities (continued)
UGI Corp.		11,220	$	338,619
				2,330,102
Health Care Equipment & Supplies — 4.3%
Accuray, Inc.(b)		4,055		9,063
Alphatec Holdings, Inc.(b)		3,278		14,849
AngioDynamics, Inc.(b)		1,746		18,211
Anika Therapeutics, Inc.(b)		827		27,481
Antares Pharma, Inc.(b)		7,916		25,648
Apyx Medical Corp.(b)		1,737		5,906
AtriCure, Inc.(b)		2,069		89,215
Atrion Corp.		83		52,442
Avanos Medical, Inc.(b)		2,608		80,978
Axogen, Inc.(b)		1,651		16,097
Axonics Modulation Technologies, Inc.(a)(b)		1,063		34,239
BioLife Solutions, Inc.(a)(b)		274		2,995
BioSig Technologies, Inc.(a)(b)		656		5,091
Cantel Medical Corp.		2,094		77,478
Cardiovascular Systems, Inc.(a)(b)		1,919		80,598
Cerus Corp.(a)(b)		7,485		46,033
ConforMIS, Inc.(b)		2,641		2,030
CONMED Corp.		1,455		107,539
CryoLife, Inc.(a)(b)		1,940		43,320
CryoPort, Inc.(b)		1,500		28,260
Cutera, Inc.(b)		692		9,307
CytoSorbents Corp.(a)(b)		1,594		13,645
DexCom, Inc.(b)		4,829		1,618,681
ElectroCore, Inc.(a)(b)		493		473
Envista Holdings Corp.(b)		7,885		153,521
GenMark Diagnostics, Inc.(a)(b)		2,584		32,326
Glaukos Corp.(b)		2,126		78,003
Globus Medical, Inc., Class A(a)(b)		4,117		195,393
Haemonetics Corp.(b)		2,700		307,206
Hill-Rom Holdings, Inc.		3,600		404,964
ICU Medical, Inc.(b)		1,040		228,082
Inogen, Inc.(b)		1,057		52,850
Insulet Corp.(a)(b)		3,154		629,917
Integra LifeSciences Holdings Corp.(b)		3,668		187,251
Invacare Corp.		1,679		12,626
iRadimed Corp.(b)		249		5,418
iRhythm Technologies, Inc.(b)		1,333		140,818
Lantheus Holdings, Inc.(b)		2,246		29,310
LeMaitre Vascular, Inc.		940		26,781
LivaNova PLC(b)		2,655		141,034
Masimo Corp.(b)		2,485		531,566
Meridian Bioscience, Inc.(b)		1,724		20,688
Merit Medical Systems, Inc.(b)		2,838		115,847
Misonix, Inc.(a)(b)		472		5,942
Natus Medical, Inc.(b)		1,598		39,934
Neogen Corp.(b)		2,772		173,500
Neuronetics, Inc.(b)		533		1,333
Nevro Corp.(a)(b)		1,598		187,989
Novocure Ltd.(b)		4,645		305,641

13

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Health Care Equipment & Supplies (continued)
NuVasive, Inc.(b)		2,806	$	170,829
Ocular Therapeutix, Inc.(a)(b)		2,080		11,981
OraSure Technologies, Inc.(b)		2,769		44,138
Orthofix Medical, Inc.(b)		885		31,373
OrthoPediatrics Corp.(b)		474		23,155
Pulse Biosciences, Inc.(a)(b)		619		6,951
Quidel Corp.(b)		1,928		267,992
Rockwell Medical, Inc.(a)(b)		3,392		7,903
RTI Surgical Holdings, Inc.(a)(b)		2,455		6,641
SeaSpine Holdings Corp.(b)		1,026		10,568
Senseonics Holdings, Inc.(a)(b)		5,543		3,160
Shockwave Medical, Inc.(b)		1,404		56,328
SI-BONE, Inc.(b)		897		14,505
Sientra, Inc.(a)(b)		1,784		4,103
Silk Road Medical, Inc.(b)		939		39,325
Soliton, Inc.(b)		296		2,673
STAAR Surgical Co.(b)		2,435		93,309
STERIS PLC		4,459		635,408
Surmodics, Inc.(b)		783		29,832
Tactile Systems Technology, Inc.(b)		1,011		52,188
Tandem Diabetes Care, Inc.(a)(b)		2,993		238,782
TransEnterix, Inc.(a)(b)		576		239
TransMedics Group, Inc.(a)(b)		759		13,730
Utah Medical Products, Inc.		153		12,699
Vapotherm, Inc.(b)		1,024		20,767
Varex Imaging Corp.(b)		2,079		54,324
ViewRay, Inc.(a)(b)		5,044		10,492
West Pharmaceutical Services, Inc.		3,884		735,086
Wright Medical Group NV(b)		6,590		191,901
Zynex, Inc.(a)(b)		785		13,863
				9,221,764
Health Care Providers & Services — 1.9%
1Life Healthcare, Inc.(b)		1,191		29,382
Acadia Healthcare Co., Inc.(a)(b)		4,724		113,423
Addus HomeCare Corp.(b)		688		55,742
Amedisys, Inc.(b)		1,652		304,232
American Renal Associates Holdings, Inc.(a)(b)		816		6,104
AMN Healthcare Services, Inc.(b)		2,425		113,927
Apollo Medical Holdings, Inc.(b)		361		5,610
Avalon GloboCare Corp.(b)		905		1,665
BioTelemetry, Inc.(a)(b)		1,732		80,902
Brookdale Senior Living, Inc.(a)(b)		10,656		38,468
Catasys, Inc.(a)(b)		178		5,418
Chemed Corp.		820		341,587
Community Health Systems, Inc.(a)(b)		4,279		12,965
CorVel Corp.(b)		425		22,393
Covetrus, Inc.(a)(b)		4,990		59,331
Cross Country Healthcare, Inc.(b)		1,701		10,699
Encompass Health Corp.		5,226		346,223
Ensign Group, Inc.(a)		2,669		99,847
Exagen, Inc.(b)		175		2,730
Genesis Healthcare, Inc.(a)(b)		3,243		2,822

Security	Shares		Value
Health Care Providers & Services (continued)
Guardant Health, Inc.(a)(b)		1,988	$	152,997
Hanger, Inc.(b)		2,103		38,611
HealthEquity, Inc.(b)		3,579		201,390
Integer Holdings Corp.(b)		1,643		122,338
Joint Corp.(b)		546		6,607
LHC Group, Inc.(b)		1,627		211,494
Magellan Health, Inc.(b)		1,144		69,475
MEDNAX, Inc.(a)(b)		4,516		65,572
Molina Healthcare, Inc.(b)		3,221		528,147
National HealthCare Corp.		717		49,021
National Research Corp., Class A		699		36,062
Option Care Health, Inc.(a)(b)		1,166		16,674
Owens & Minor, Inc.		3,813		26,996
Patterson Cos., Inc.		4,483		81,949
Pennant Group Inc.(b)		1,114		22,046
Penumbra, Inc.(a)(b)		1,698		301,089
PetIQ, Inc.(b)		1,194		34,148
Premier, Inc., Class A(b)		3,396		112,611
Progyny, Inc.(a)(b)		571		13,379
Providence Service Corp.(b)		694		40,259
R1 RCM, Inc.(a)(b)		5,576		57,544
RadNet, Inc.(b)		2,467		34,834
Select Medical Holdings Corp.(b)		5,820		99,347
Surgery Partners, Inc.(b)		1,311		15,470
Tenet Healthcare Corp.(b)		5,466		110,304
Tivity Health, Inc.(a)(b)		2,215		19,869
Triple-S Management Corp., Class B(b)		1,165		19,724
U.S. Physical Therapy, Inc.		735		55,493
				4,196,920
Health Care Technology — 0.8%
Allscripts Healthcare Solutions, Inc.(b)		8,967		58,285
Castlight Health, Inc., Class B(a)(b)		4,383		3,213
Change Healthcare, Inc.(b)		12,216		142,194
Computer Programs & Systems, Inc.		600		14,418
Evolent Health, Inc., Class A(a)(b)		4,530		32,661
Health Catalyst, Inc.(a)(b)		1,128		30,084
HealthStream, Inc.(b)		1,275		29,102
HMS Holdings Corp.(b)		4,758		136,436
Inovalon Holdings, Inc., Class A(b)		3,719		65,082
Inspire Medical Systems, Inc.(b)		674		48,299
Livongo Health, Inc.(a)(b)		2,786		111,468
NextGen Healthcare, Inc.(b)		2,656		28,021
Omnicell, Inc.(a)(b)		2,213		161,328
OptimizeRx Corp.(a)(b)		678		6,312
Phreesia, Inc.(b)		1,580		40,116
Schrodinger, Inc.(b)		819		38,002
Simulations Plus, Inc.		699		26,597
Tabula Rasa HealthCare, Inc.(b)		1,041		65,937
Teladoc Health, Inc.(a)(b)		3,826		629,721
Vocera Communications, Inc.(b)		1,806		34,242
				1,701,518

14

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Hotels, Restaurants & Leisure — 2.5%
Aramark		13,308	$	363,441
BBX Capital Corp.		3,071		6,511
Biglari Holdings, Inc., Class B(b)		42		2,940
BJ’s Restaurants, Inc.		1,191		26,035
Bloomin’ Brands, Inc.		4,939		59,515
Bluegreen Vacations Corp.		220		1,199
Boyd Gaming Corp.		4,292		71,633
Braemar Hotels & Resorts, Inc.		1,257		3,934
Brinker International, Inc.		1,849		43,045
Caesars Entertainment Corp.(b)		31,173		301,131
Carrols Restaurant Group, Inc.(b)		1,425		5,201
Century Casinos, Inc.(a)(b)		1,126		5,106
Cheesecake Factory, Inc.		2,338		52,114
Choice Hotels International, Inc.		1,661		124,658
Churchill Downs, Inc.		1,873		187,712
Chuy’s Holdings, Inc.(a)(b)		809		13,559
Cracker Barrel Old Country Store, Inc.		1,222		119,023
Dave & Buster’s Entertainment, Inc.		1,890		27,670
Del Taco Restaurants, Inc.(b)		1,117		6,568
Denny’s Corp.(b)		3,294		37,123
Dine Brands Global, Inc.		935		41,505
Domino’s Pizza, Inc.		2,184		790,455
Dunkin’ Brands Group, Inc.		4,410		277,124
El Pollo Loco Holdings, Inc.(b)		845		10,334
Eldorado Resorts, Inc.(b)		3,302		70,795
Everi Holdings, Inc.(b)		3,954		19,572
Extended Stay America, Inc.		10,160		110,439
Fiesta Restaurant Group, Inc.(a)(b)		900		6,547
Golden Entertainment, Inc.(b)		743		7,014
Hilton Grand Vacations, Inc.(a)(b)		4,641		95,605
Hyatt Hotels Corp., Class A		1,957		110,101
Inspired Entertainment, Inc.(b)		470		1,208
International Game Technology PLC		5,405		40,754
J Alexander’s Holdings, Inc.(b)		497		2,629
Jack in the Box, Inc.		1,123		67,717
Kura Sushi USA, Inc., Class A(b)		244		4,107
Lindblad Expeditions Holdings, Inc.(b)		930		6,212
Marcus Corp.		1,122		16,314
Marriott Vacations Worldwide Corp.		2,245		186,335
Monarch Casino & Resort, Inc.(a)(b)		570		19,004
Nathan’s Famous, Inc.		139		7,822
Noodles & Co.(a)(b)		1,486		9,287
Papa John’s International, Inc.		1,164		83,715
Penn National Gaming, Inc.(b)		5,924		105,566
Planet Fitness, Inc., Class A(b)		4,450		268,468
PlayAGS, Inc.(b)		1,064		4,671
Potbelly Corp.(a)(b)		878		3,029
RCI Hospitality Holdings, Inc.(a)		372		4,661
Red Lion Hotels Corp.(a)(b)		970		1,562
Red Robin Gourmet Burgers, Inc.(b)		533		7,798

Security	Shares		Value
Hotels, Restaurants & Leisure (continued)
Red Rock Resorts, Inc., Class A		4,136	$	45,331
Ruth’s Hospitality Group, Inc.		1,390		15,644
Scientific Games Corp., Class A(b)		2,857		36,027
SeaWorld Entertainment, Inc.(b)		2,703		39,707
Shake Shack, Inc., Class A(b)		1,581		86,180
Six Flags Entertainment Corp.		4,497		89,985
Target Hospitality Corp.(b)		1,352		2,731
Texas Roadhouse, Inc.		3,419		161,001
Twin River Worldwide Holdings, Inc.		564		8,900
Vail Resorts, Inc.		2,167		370,557
Wendy’s Co.		9,986		198,322
Wingstop, Inc.(a)		1,562		183,176
Wyndham Destinations, Inc.		4,789		122,455
Wyndham Hotels & Resorts, Inc.		4,723		178,104
				5,376,588
Household Durables — 1.5%
Bassett Furniture Industries, Inc.		398		2,722
Beazer Homes USA, Inc.(b)		1,438		10,124
Casper Sleep, Inc.(a)(b)		361		2,509
Cavco Industries, Inc.(b)		481		74,401
Century Communities, Inc.(b)		1,731		37,078
Ethan Allen Interiors, Inc.		1,201		13,583
Flexsteel Industries, Inc.		353		3,389
GoPro, Inc., Class A(b)		8,048		28,329
Green Brick Partners, Inc.(b)		1,749		15,584
Hamilton Beach Brands Holding Co., Class A		292		3,852
Helen of Troy Ltd.(b)		1,339		219,971
Hooker Furniture Corp.		486		7,285
Installed Building Products, Inc.(b)		1,317		64,941
iRobot Corp.(a)(b)		1,516		92,415
KB Home(a)		4,571		119,943
La-Z-Boy, Inc.		2,200		51,590
Legacy Housing Corp.(b)		333		3,257
Leggett & Platt, Inc.		6,976		245,067
LGI Homes, Inc.(b)		993		60,156
Lifetime Brands, Inc.		417		2,377
Lovesac Co.(a)(b)		434		5,178
M/I Homes, Inc.(b)		1,324		33,709
MDC Holdings, Inc.		2,937		85,907
Meritage Homes Corp.(b)		1,856		97,551
NACCO Industries, Inc., Class A		196		6,889
Newell Brands, Inc.		20,197		280,334
NVR, Inc.(b)		171		530,100
PulteGroup, Inc.		13,268		375,086
Purple Innovation, Inc.(b)		516		5,191
Skyline Champion Corp.(b)		3,031		59,741
Sonos, Inc.(b)		4,519		46,184
Taylor Morrison Home Corp., Class A(a)(b)		6,821		99,246
Tempur Sealy International, Inc.(b)		2,402		129,108
Toll Brothers, Inc.		6,324		151,903
TopBuild Corp.(b)		1,811		168,767

15

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Household Durables (continued)
TRI Pointe Group, Inc.(b)		7,088	$	81,370
Tupperware Brands Corp.		2,199		7,081
Universal Electronics, Inc.(b)		803		33,148
ZAGG, Inc.(b)		991		3,270
				3,258,336
Household Products — 0.3%
Central Garden & Pet Co.(b)		503		16,569
Central Garden & Pet Co., Class A(b)		2,042		62,097
Energizer Holdings, Inc.		3,179		123,854
Oil-Dri Corp. of America		264		9,871
Reynolds Consumer Products, Inc.		2,557		82,924
Spectrum Brands Holdings, Inc.		2,472		106,444
WD-40 Co.(a)		765		133,324
				535,083
Independent Power and Renewable Electricity Producers — 0.6%
Atlantic Power Corp.(b)		5,009		9,968
Clearway Energy, Inc., Class A		1,967		36,783
Clearway Energy, Inc., Class C		3,741		74,932
Genie Energy Ltd., Class B		578		4,555
NRG Energy, Inc.		13,411		449,671
Ormat Technologies, Inc.		2,114		131,935
Sunnova Energy International, Inc.(b)		2,062		25,981
TerraForm Power, Inc., Class A		4,186		72,501
Vistra Energy Corp.		22,534		440,314
Vivint Solar, Inc.(b)		2,099		13,308
				1,259,948
Industrial Conglomerates — 0.3%
BWX Technologies, Inc.		4,940		262,116
Carlisle Cos., Inc.		2,910		351,994
Raven Industries, Inc.		1,983		44,161
Seaboard Corp.		15		45,167
Standex International Corp.		605		30,153
				733,591
Insurance — 3.6%
Alleghany Corp.		749		399,749
Ambac Financial Group, Inc.(b)		2,574		44,273
American Equity Investment Life Holding Co.		4,023		84,563
American Financial Group, Inc.		3,998		264,827
American National Insurance Co.		439		35,339
AMERISAFE, Inc.		879		55,966
Argo Group International Holdings Ltd.		1,836		64,921
Assurant, Inc.		3,275		347,936
Assured Guaranty Ltd.		5,100		151,623
Axis Capital Holdings Ltd.		4,415		161,589
Benefytt Technologies, Inc.(b)		282		7,369
Brighthouse Financial, Inc.(b)		5,740		147,575
Brown & Brown, Inc.		12,610		452,825
BRP Group, Inc., Class A(b)		955		9,569
Citizens, Inc.(a)(b)		3,415		18,987
CNO Financial Group, Inc.		8,151		114,603

Security	Shares		Value
Insurance (continued)
Crawford & Co., Class A		639	$	4,550
Donegal Group, Inc., Class A		535		7,661
eHealth, Inc.(b)		1,221		130,281
Employers Holdings, Inc.		968		29,398
Enstar Group Ltd.(b)		614		88,797
Erie Indemnity Co., Class A		1,311		233,437
Everest Re Group Ltd.		2,143		371,018
FBL Financial Group, Inc., Class A		517		20,204
FedNat Holding Co.		603		7,308
First American Financial Corp.		5,928		273,399
Genworth Financial, Inc., Class A(b)		28,344		102,889
Global Indemnity Ltd.		422		10,377
Globe Life, Inc.		5,675		467,279
Goosehead Insurance, Inc., Class A(b)		620		34,807
Greenlight Capital Re Ltd., Class A(b)		1,515		9,878
Hallmark Financial Services, Inc.(b)		509		2,199
Hanover Insurance Group, Inc.		2,039		204,675
HCI Group, Inc.		303		12,620
Heritage Insurance Holdings, Inc.		1,264		14,334
Hilltop Holdings, Inc.		3,915		75,559
Horace Mann Educators Corp.		1,689		59,385
Independence Holding Co.		253		6,998
Investors Title Co.		73		9,775
James River Group Holdings Ltd.		1,575		55,881
Kemper Corp.		3,408		229,086
Kinsale Capital Group, Inc.		1,127		122,415
MBIA, Inc.(b)		3,904		31,779
Mercury General Corp.		1,462		59,884
National General Holdings Corp.		3,805		72,409
National Western Life Group, Inc., Class A		115		22,164
NI Holdings, Inc.(b)		788		10,646
Old Republic International Corp.		14,844		236,762
Palomar Holdings, Inc.(a)(b)		957		55,984
Primerica, Inc.		2,164		224,861
ProAssurance Corp.		2,177		46,566
ProSight Global, Inc.(b)		486		4,063
Protective Insurance Corp., Class B		430		6,717
Reinsurance Group of America, Inc.		3,336		349,212
RenaissanceRe Holdings Ltd.		2,321		338,889
RLI Corp.		2,040		148,573
Safety Insurance Group, Inc.		788		66,287
Selective Insurance Group, Inc.		3,067		153,749
State Auto Financial Corp.		907		22,757
Stewart Information Services Corp.		984		31,350
Third Point Reinsurance Ltd.(b)		3,928		29,224
Trupanion, Inc.(a)(b)		1,394		41,695
United Fire Group, Inc.		1,088		31,117
United Insurance Holdings Corp.		1,333		11,397
Universal Insurance Holdings, Inc.		1,414		25,777
Unum Group		11,302		197,220
W.R. Berkley Corp.(a)		7,712		416,448
Watford Holdings Ltd.(b)		889		10,979
White Mountains Insurance Group Ltd.		170		165,410
				7,757,843

16

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Interactive Media & Services — 0.3%
Cargurus, Inc.(a)(b)		4,038	$	92,389
Cars.com, Inc.(b)		3,316		17,177
ComScore, Inc.(b)		2,572		7,433
DHI Group, Inc.(b)		4,660		12,955
Eventbrite, Inc., Class A(a)(b)		1,303		11,883
EverQuote, Inc., Class A(b)		425		16,562
Meet Group, Inc.(b)		2,972		18,337
QuinStreet, Inc.(b)		2,273		23,094
Travelzoo(b)		191		1,064
TrueCar, Inc.(b)		5,149		13,181
Yelp, Inc.(a)(b)		3,730		83,366
Zillow Group, Inc., Class A(b)		3,153		137,282
Zillow Group, Inc., Class C(a)(b)		6,522		286,707
				721,430
Internet & Direct Marketing Retail — 0.6%
1-800-Flowers.com, Inc., Class A(a)(b)		1,205		23,124
Duluth Holdings, Inc., Class B(a)(b)		371		1,488
Etsy, Inc.(b)		6,280		407,384
Gaia, Inc.(b)		473		4,300
Groupon, Inc.(b)		19,290		23,534
GrubHub, Inc.(a)(b)		4,969		237,468
Lands’ End, Inc.(b)		436		3,710
Leaf Group Ltd.(b)		511		741
Liberty TripAdvisor Holdings, Inc., Series A(b)		5,186		12,187
Liquidity Services, Inc.(b)		1,389		6,945
PetMed Express, Inc.		1,122		44,398
Quotient Technology, Inc.(b)		3,639		26,128
Qurate Retail, Inc., Series A(b)		20,885		168,229
RealReal, Inc.(a)(b)		3,073		36,077
Rubicon Project, Inc.(a)(b)		5,765		41,335
Shutterstock, Inc.		1,186		45,068
Stamps.com, Inc.(b)		868		137,378
Stitch Fix, Inc., Class A(a)(b)		2,123		34,074
TripAdvisor, Inc.		5,617		112,171
Waitr Holdings, Inc.(b)		2,211		2,963
				1,368,702
IT Services — 3.8%
Alliance Data Systems Corp.		2,247		112,507
Amdocs Ltd.		7,023		452,562
Black Knight, Inc.(b)		7,636		538,873
Booz Allen Hamilton Holding Corp.		7,251		532,514
Brightcove, Inc.(b)		1,861		14,516
CACI International, Inc., Class A(a)(b)		1,316		329,184
Cardtronics PLC, Class A(b)		2,096		47,998
Cass Information Systems, Inc.		664		26,633
Conduent, Inc.(b)		8,436		21,259
CoreLogic, Inc.		4,166		160,058
CSG Systems International, Inc.		1,770		85,987

Security	Shares		Value
IT Services (continued)
Endurance International Group Holdings, Inc.(b)		3,059	$	7,846
EPAM Systems, Inc.(b)		2,743		605,901
Euronet Worldwide, Inc.(b)		2,697		247,477
EVERTEC, Inc.		3,261		82,634
Evo Payments, Inc., Class A(a)(b)		2,293		45,654
Exela Technologies, Inc.(a)(b)		1,604		569
ExlService Holdings, Inc.(b)		1,778		109,756
Genpact Ltd.		10,068		346,641
GTT Communications, Inc.(a)(b)		1,605		18,233
Hackett Group, Inc.		1,168		17,321
Information Services Group, Inc.(b)		2,016		5,040
International Money Express, Inc.(b)		929		7,506
Jack Henry & Associates, Inc.		4,093		669,410
Leidos Holdings, Inc.		7,114		702,934
Limelight Networks, Inc.(b)		6,756		34,253
LiveRamp Holdings, Inc.(a)(b)		3,726		141,066
ManTech International Corp., Class A		1,354		100,954
MAXIMUS, Inc.		3,299		222,089
MongoDB, Inc.(a)(b)		2,277		369,170
NIC, Inc.		3,562		86,307
Okta, Inc.(b)		5,580		844,254
Paysign, Inc.(a)(b)		1,494		12,848
Perficient, Inc.(b)		1,827		63,634
Perspecta, Inc.		7,475		161,236
PRGX Global, Inc.(b)		790		3,168
Priority Technology Holdings, Inc.(b)		223		359
Sabre Corp.		14,677		106,702
Science Applications International Corp.		3,111		254,044
StarTek, Inc.(b)		669		2,790
Switch, Inc., Class A(a)		3,365		57,777
Teradata Corp.(b)		5,657		139,106
TTEC Holdings, Inc.(a)		986		38,434
Tucows, Inc., Class A(a)(b)		460		24,339
Unisys Corp.(a)(b)		2,147		27,031
Verra Mobility Corp.(a)(b)		7,409		66,385
Virtusa Corp.(b)		1,563		51,579
WEX, Inc.(b)		2,319		306,850
				8,303,388
Leisure Products — 0.4%
Brunswick Corp.		4,404		210,159
Callaway Golf Co.(a)		4,922		70,483
Clarus Corp.		919		9,815
Escalade, Inc.		723		6,182
Johnson Outdoors, Inc., Class A		264		18,047
Malibu Boats, Inc., Class A(b)		1,201		41,290
Marine Products Corp.		266		2,585
MasterCraft Boat Holdings, Inc.(a)(b)		869		9,081
Mattel, Inc.(b)		17,734		154,640
Polaris, Inc.		3,090		219,174
Sturm Ruger & Co., Inc.		929		49,423
Vista Outdoor, Inc.(b)		3,455		34,965
YETI Holdings, Inc.(b)		2,725		75,237
				901,081

17

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Life Sciences Tools & Services — 2.0%
Accelerate Diagnostics, Inc.(a)(b)		1,338	$	14,598
Adaptive Biotechnologies Corp.(a)(b)		3,566		114,148
Avantor, Inc.(a)(b)		16,948		284,896
Bio-Rad Laboratories, Inc., Class A(b)		1,121		493,352
Bio-Techne Corp.		2,040		459,000
Bruker Corp.		5,251		206,469
Charles River Laboratories International, Inc.(b)		2,559		370,210
ChromaDex Corp.(a)(b)		1,704		8,520
Enzo Biochem, Inc.(b)		2,477		7,481
Fluidigm Corp.(b)		3,589		8,039
Luminex Corp.(a)		2,339		84,321
Medpace Holdings, Inc.(b)		1,429		114,120
NanoString Technologies, Inc.(a)(b)		1,878		59,645
NeoGenomics, Inc.(b)		4,919		134,485
Pacific Biosciences of California, Inc.(a)(b)		8,853		29,259
PerkinElmer, Inc.		5,868		531,230
Personalis, Inc.(a)(b)		888		9,209
PPD, Inc.(b)		3,833		91,609
PRA Health Sciences, Inc.(a)(b)		3,434		331,381
QIAGEN NV(b)		11,793		491,650
Quanterix Corp.(b)		679		17,790
Repligen Corp.(b)		2,765		321,155
Syneos Health, Inc.(b)		3,248		181,206
				4,363,773
Machinery — 4.1%
AGCO Corp.		3,250		171,730
Alamo Group, Inc.		463		45,578
Albany International Corp., Class A		1,699		86,887
Allison Transmission Holdings, Inc.		5,669		206,011
Altra Industrial Motion Corp.		3,765		105,081
Astec Industries, Inc.		1,246		49,977
Barnes Group, Inc.		2,486		95,413
Blue Bird Corp.(a)(b)		768		9,423
Briggs & Stratton Corp.		2,249		5,105
Chart Industries, Inc.(b)		1,930		68,940
CIRCOR International, Inc.(b)		971		14,497
Colfax Corp.(b)		4,981		128,460
Columbus McKinnon Corp.		1,149		31,115
Commercial Vehicle Group, Inc.(b)		1,253		3,032
Crane Co.		2,713		147,723
DMC Global, Inc.(a)		908		23,435
Donaldson Co., Inc.		6,550		287,087
Douglas Dynamics, Inc.		1,244		45,978
Eastern Co.		259		4,662
Energy Recovery, Inc.(a)(b)		1,770		14,408
Enerpac Tool Group Corp.		3,236		55,206
EnPro Industries, Inc.		973		44,126

Security	Shares		Value
Machinery (continued)
ESCO Technologies, Inc.		1,371	$	104,607
Evoqua Water Technologies Corp.(b)		4,342		69,689
Federal Signal Corp.		3,217		86,634
Flowserve Corp.		7,023		197,838
Gates Industrial Corp. PLC(a)(b)		2,205		18,941
Gencor Industries, Inc.(b)		326		3,951
Gorman-Rupp Co.		1,030		30,385
Graco, Inc.		8,743		390,462
Graham Corp.		114		1,493
Greenbrier Cos., Inc.		1,826		31,005
Helios Technologies, Inc.		1,588		56,485
Hillenbrand, Inc.		4,025		84,324
Hurco Cos., Inc.		475		15,528
Hyster-Yale Materials Handling, Inc.		501		19,559
IDEX Corp.		4,013		616,517
Ingersoll Rand, Inc.(b)		18,334		533,153
ITT, Inc.		4,738		249,787
John Bean Technologies Corp.(a)		1,697		130,228
Kadant, Inc.		590		49,613
Kennametal, Inc.		4,224		108,177
LB Foster Co., Class A(b)		407		5,857
Lincoln Electric Holdings, Inc.		3,173		255,458
Lindsay Corp.		617		55,530
Luxfer Holdings PLC		1,743		23,653
Lydall, Inc.(b)		736		8,243
Manitowoc Co., Inc.(b)		1,724		15,895
Meritor, Inc.(b)		3,789		77,675
Middleby Corp.(a)(b)		2,893		160,938
Miller Industries, Inc.		546		16,587
Mueller Industries, Inc.		2,882		74,644
Mueller Water Products, Inc., Class A		8,179		77,619
Navistar International Corp.(b)		2,449		58,213
NN, Inc.		1,796		6,196
Nordson Corp.		3,049		490,615
Omega Flex, Inc.		143		12,884
Oshkosh Corp.		3,681		248,578
Pentair PLC		8,696		300,795
Proto Labs, Inc.(a)(b)		1,420		144,258
RBC Bearings, Inc.(b)		1,296		164,177
REV Group, Inc.		1,134		6,033
Rexnord Corp.		5,698		155,384
Snap-on, Inc.		2,842		370,284
SPX Corp.(b)		2,380		90,749
SPX FLOW, Inc.(a)(b)		2,304		75,041
Tennant Co.		963		56,981
Terex Corp.		3,634		55,200
Timken Co.		3,481		130,816
Titan International, Inc.		2,222		3,133
Toro Co.		5,747		366,716
TriMas Corp.(b)		2,473		58,956
Trinity Industries, Inc.		5,312		102,469
Twin Disc, Inc.(b)		423		2,542
Valmont Industries, Inc.		1,162		136,233
Wabash National Corp.		2,528		20,730

18

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Machinery (continued)
WABCO Holdings, Inc.(b)		2,717	$	365,110
Watts Water Technologies, Inc., Class A		1,475		121,540
Welbilt, Inc.(a)(b)		7,707		37,996
Woodward, Inc.		2,837		171,809
				8,967,787
Marine — 0.1%
Costamare, Inc.		2,749		13,800
Eagle Bulk Shipping, Inc.(a)(b)		1,704		2,863
Genco Shipping & Trading Ltd.		653		3,807
Kirby Corp.(a)(b)		3,208		171,371
Matson, Inc.		2,285		69,098
Safe Bulkers, Inc.(b)		1,654		1,720
Scorpio Bulkers, Inc.		234		5,998
				268,657
Media — 1.6%
AMC Networks, Inc., Class A(b)		2,347		55,976
Boston Omaha Corp., Class A(b)		529		8,586
Cable One, Inc.		234		447,609
Cardlytics, Inc.(b)		672		30,206
cbdMD, Inc.(a)(b)		298		287
Central European Media Enterprises Ltd., Class A(a)(b)		5,251		20,426
Cinemark Holdings, Inc.		5,192		74,142
Clear Channel Outdoor Holdings, Inc.(b)		1,652		1,594
Cumulus Media, Inc., Class A(a)(b)		573		2,538
Daily Journal Corp.(b)		54		14,985
Emerald Holding, Inc.		1,076		2,453
Entercom Communications Corp., Class A		5,968		7,281
Entravision Communications Corp., Class A		3,178		4,640
Eros International PLC(b)		3,680		9,384
EW Scripps Co., Class A		2,621		21,151
Fluent, Inc.(b)		1,589		3,194
Gannett Co., Inc.		5,759		6,508
GCI Liberty, Inc., Class A(a)(b)		5,282		321,304
Gray Television, Inc.(b)		4,951		57,481
Hemisphere Media Group, Inc.(b)		733		6,802
IMAX Corp.(b)		3,085		35,477
Interpublic Group of Cos., Inc.		20,384		346,120
John Wiley & Sons, Inc., Class A		2,345		88,055
Lee Enterprises, Inc.(a)(b)		2,172		1,990
Liberty Latin America Ltd., Class A(b)		2,582		27,627
Liberty Latin America Ltd., Class C(b)		5,853		60,520
Liberty Media Corp. — Liberty Formula One, Class A(a)(b)		1,121		33,910
Liberty Media Corp. — Liberty Formula One, Class C(b)		10,645		342,663
Liberty Media Corp. — Liberty Braves, Class A(b)		524		10,815

Security	Shares		Value
Media (continued)
Liberty Media Corp. — Liberty Braves, Class C(b)		2,007	$	40,321
Lions Gate Entertainment Corp., Class A(b)		2,350		16,779
Lions Gate Entertainment Corp., Class B(b)		6,941		46,366
LiveXLive Media, Inc.(b)		1,347		3,435
Madison Square Garden Co., Class A(b)		1,013		173,547
Marchex, Inc., Class B(b)		3,196		5,337
MDC Partners, Inc., Class A(b)		2,329		3,330
Meredith Corp.		2,338		34,673
MSG Networks, Inc., Class A(b)		2,604		30,936
National CineMedia, Inc.		2,649		8,742
New York Times Co., Class A		8,608		279,932
News Corp., Class A(a)		21,301		211,093
News Corp., Class B		5,948		60,789
Nexstar Media Group, Inc., Class A		2,380		166,695
Reading International, Inc., Class A(a)(b)		671		2,862
Saga Communications, Inc., Class A		168		4,724
Scholastic Corp.		1,627		47,297
Sinclair Broadcast Group, Inc., Class A		3,355		59,216
TechTarget, Inc.(a)(b)		1,140		26,585
TEGNA, Inc.		11,200		120,064
TiVo Corp.		7,036		49,463
Tribune Publishing Co.		1,295		11,098
Value Line, Inc.		72		2,231
WideOpenWest, Inc.(b)		1,029		6,092
				3,455,331
Metals & Mining — 1.0%
Alcoa Corp.(b)		9,670		78,810
Allegheny Technologies, Inc.(a)(b)		7,282		54,688
Carpenter Technology Corp.		2,556		56,667
Century Aluminum Co.(a)(b)		2,941		12,793
Cleveland-Cliffs, Inc.		21,213		92,913
Coeur Mining, Inc.(b)		13,610		57,298
Commercial Metals Co.		6,227		99,258
Compass Minerals International, Inc.		1,844		90,651
Ferroglobe PLC(b)(c)		897		—
Gold Resource Corp.		3,023		12,485
Haynes International, Inc.		581		12,840
Hecla Mining Co.		28,753		75,620
Kaiser Aluminum Corp.		833		60,168
Materion Corp.		1,087		56,241
Mayville Engineering Co., Inc.(b)		267		1,394
Novagold Resources, Inc.(b)		12,072		135,086
Olympic Steel, Inc.		326		3,077
Ramaco Resources, Inc.(b)		946		2,233
Reliance Steel & Aluminum Co.		3,426		306,901
Royal Gold, Inc.		3,462		424,199
Ryerson Holding Corp.(b)		675		3,119
Schnitzer Steel Industries, Inc., Class A		1,312		20,415

19

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Metals & Mining (continued)
Steel Dynamics, Inc.		10,738	$	260,611
SunCoke Energy, Inc.		4,822		15,189
Synalloy Corp.(b)		335		2,961
TimkenSteel Corp.(a)(b)		2,056		5,346
U.S. Silica Holdings, Inc.(a)		4,190		8,045
United States Steel Corp.(a)		9,052		69,519
Warrior Met Coal, Inc.		2,267		28,451
Worthington Industries, Inc.		2,282		60,336
				2,107,314
Mortgage Real Estate Investment Trusts (REITs) — 0.3%
AG Mortgage Investment Trust, Inc.		1,387		4,425
AGNC Investment Corp.		28,652		355,858
Colony Credit Real Estate, Inc.		3,837		18,456
Drive Shack, Inc.(b)		2,660		3,511
Dynex Capital, Inc.		1,452		20,778
Ellington Financial, Inc.		2,467		25,632
Exantas Capital Corp.		1,066		3,155
Front Yard Residential Corp.		2,906		33,157
Granite Point Mortgage Trust, Inc.		2,558		12,739
Great Ajax Corp.		704		6,125
Invesco Mortgage Capital, Inc.		9,112		27,701
KKR Real Estate Finance Trust, Inc.		1,553		24,506
Ready Capital Corp.		2,349		15,668
TPG RE Finance Trust, Inc.		2,871		22,078
Two Harbors Investment Corp.		14,094		64,410
Western Asset Mortgage Capital Corp.		1,923		5,865
				644,064
Multi-Utilities — 0.3%
Avista Corp.		3,678		158,301
Black Hills Corp.		3,284		203,411
MDU Resources Group, Inc.		10,579		237,604
NorthWestern Corp.		2,598		149,879
				749,195
Multiline Retail — 0.3%
Big Lots, Inc.		1,970		46,196
Dillard’s, Inc., Class A		471		13,885
JC Penney Co., Inc.(a)(b)		13,695		3,479
Kohl’s Corp.		8,089		149,323
Macy’s, Inc.(a)		16,587		97,200
Nordstrom, Inc.(a)		5,987		112,436
Ollie’s Bargain Outlet Holdings, Inc.(a)(b)		2,718		184,579
				607,098
Oil, Gas & Consumable Fuels — 1.3%
Abraxas Petroleum Corp.(b)		5,752		1,810
Altus Midstream Co., Class A(b)		2,059		1,565
Amplify Energy Corp.		595		785
Amyris, Inc.(b)		2,775		7,493
Antero Midstream Corp.		13,841		65,745
Antero Resources Corp.(a)(b)		15,054		44,861
Arch Coal, Inc., Class A		747		21,805

Security	Shares		Value
Oil, Gas & Consumable Fuels (continued)
Ardmore Shipping Corp.		1,437	$	9,455
Berry Corp.		3,437		11,789
Bonanza Creek Energy, Inc.(a)(b)		944		16,482
Brigham Minerals, Inc., Class A		1,451		18,703
California Resources Corp.(a)(b)		2,553		7,148
Callon Petroleum Co.(a)(b)		18,369		17,261
Centennial Resource Development, Inc., Class A(b)		9,037		10,664
Chaparral Energy, Inc., Class A(b)		1,218		596
Chesapeake Energy Corp.(a)(b)		300		5,250
Cimarex Energy Co.		5,454		138,641
Clean Energy Fuels Corp.(b)		6,462		13,926
CNX Resources Corp.(b)		10,106		107,124
Comstock Resources, Inc.(a)(b)		657		5,033
CONSOL Energy, Inc.(a)(b)		1,305		9,905
Contura Energy, Inc.(b)		789		3,014
CVR Energy, Inc.		1,469		35,036
Delek US Holdings, Inc.		4,070		95,035
Denbury Resources, Inc.(a)(b)		25,090		8,920
DHT Holdings, Inc.		5,497		39,908
Diamond S Shipping, Inc.(b)		1,291		16,021
Dorian LPG Ltd.(b)		1,847		17,528
Earthstone Energy, Inc., Class A(a)(b)		661		1,527
Energy Fuels, Inc.(a)(b)		5,468		9,733
EQT Corp.		13,729		200,306
Equitrans Midstream Corp.		10,701		89,674
Evolution Petroleum Corp.		1,497		4,446
Extraction Oil & Gas, Inc.(b)		3,392		1,796
Falcon Minerals Corp.		1,550		3,790
GasLog Ltd.		2,062		9,526
Golar LNG Ltd.		5,601		39,711
Goodrich Petroleum Corp.(a)(b)		250		2,128
Green Plains, Inc.		1,514		8,887
Gulfport Energy Corp.(b)		10,769		27,515
Hallador Energy Co.		779		593
HighPoint Resources Corp.(b)		4,620		1,532
HollyFrontier Corp.		7,982		263,725
International Seaways, Inc.(a)		1,068		25,846
Kosmos Energy Ltd.		17,128		28,261
Laredo Petroleum, Inc.(b)		7,354		8,016
Magnolia Oil & Gas Corp., Class A(b)		4,916		31,807
Matador Resources Co.(a)(b)		6,791		47,809
Montage Resources Corp.(a)(b)		2,003		13,681
Murphy Oil Corp.		7,308		86,673
NextDecade Corp.(b)		435		726
Nordic American Tankers Ltd.(a)		7,726		46,511
Northern Oil and Gas, Inc.(a)(b)		15,564		13,030
Oasis Petroleum, Inc.(a)(b)		15,706		11,055
Overseas Shipholding Group, Inc., Class A(a)(b)		3,265		8,163
Panhandle Oil and Gas, Inc., Class A		595		2,576
Par Pacific Holdings, Inc.(b)		1,209		11,752
Parsley Energy, Inc., Class A		16,173		152,835
PBF Energy, Inc., Class A		6,610		75,354

20

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Oil, Gas & Consumable Fuels (continued)
PDC Energy, Inc.(b)		5,972	$	77,576
Peabody Energy Corp.		3,872		13,126
Penn Virginia Corp.(a)(b)		528		3,321
PrimeEnergy Resources Corp.(b)		13		812
QEP Resources, Inc.		9,802		9,665
Range Resources Corp.		11,227		65,453
Renewable Energy Group, Inc.(b)		1,908		47,338
REX American Resources Corp.(a)(b)		278		16,535
Ring Energy, Inc.(b)		2,761		2,489
Rosehill Resources, Inc.(a)(b)		205		94
SandRidge Energy, Inc.(b)		1,380		2,746
Scorpio Tankers, Inc.		2,270		49,690
SFL Corp. Ltd.		4,970		56,111
SilverBow Resources, Inc.(b)		271		1,466
SM Energy Co.		5,281		21,388
Southwestern Energy Co.(b)		27,080		87,468
Talos Energy, Inc.(a)(b)		839		9,556
Targa Resources Corp.		12,667		164,164
Teekay Corp.(b)		3,436		12,782
Teekay Tankers Ltd., Class A(b)		1,456		29,571
Tellurian, Inc.(a)(b)		4,199		5,963
Uranium Energy Corp.(b)		9,375		10,313
W&T Offshore, Inc.(a)(b)		4,964		13,750
Whiting Petroleum Corp.(a)(b)		3,916		4,934
World Fuel Services Corp.		3,649		91,225
WPX Energy, Inc.(b)		22,616		138,636
				2,896,659
Paper & Forest Products — 0.2%
Boise Cascade Co.		2,079		65,010
Clearwater Paper Corp.(b)		628		15,034
Domtar Corp.		3,154		73,678
Louisiana-Pacific Corp.		5,742		114,840
Neenah, Inc.		958		46,808
PH Glatfelter Co.		2,172		31,711
Schweitzer-Mauduit International, Inc.		1,696		54,645
Verso Corp., Class A(a)(b)		2,205		30,628
				432,354
Personal Products — 0.3%
BellRing Brands, Inc., Class A(b)		2,231		39,109
Edgewell Personal Care Co.(b)		2,873		79,324
elf Beauty, Inc.(b)		1,290		16,860
Herbalife Nutrition Ltd.(a)(b)		5,236		195,565
Inter Parfums, Inc.		1,036		46,299
Lifevantage Corp.(b)		558		8,649
Medifast, Inc.		615		46,666
Nature’s Sunshine Products, Inc.(b)		459		4,039
Nu Skin Enterprises, Inc., Class A		3,044		88,915
Revlon, Inc., Class A(a)(b)		254		3,383
USANA Health Sciences, Inc.(a)(b)		706		62,989

Security	Shares		Value
Personal Products (continued)
Youngevity International, Inc.(a)(b)		413	$	682
				592,480
Pharmaceuticals — 1.7%
AcelRx Pharmaceuticals, Inc.(a)(b)		3,225		5,192
Aclaris Therapeutics, Inc.(a)(b)		1,425		1,895
Aerie Pharmaceuticals, Inc.(a)(b)		2,390		36,424
Akorn, Inc.(b)		3,679		773
Amneal Pharmaceuticals, Inc.(a)(b)		6,163		22,372
Amphastar Pharmaceuticals, Inc.(b)		1,772		30,035
ANI Pharmaceuticals, Inc.(b)		345		13,803
Arvinas Holding Co. LLC(b)		1,218		63,945
Assembly Biosciences, Inc.(a)(b)		1,172		20,522
Assertio Therapeutics, Inc.(b)		6,039		5,284
Axsome Therapeutics, Inc.(b)		1,430		135,893
BioDelivery Sciences International, Inc.(b)		3,977		18,135
Cara Therapeutics, Inc.(a)(b)		2,345		34,753
Catalent, Inc.(b)		8,166		564,679
Cerecor, Inc.(b)		875		2,074
Collegium Pharmaceutical, Inc.(a)(b)		1,873		38,734
Corcept Therapeutics, Inc.(b)		5,254		66,516
CorMedix, Inc.(a)(b)		973		4,038
Cymabay Therapeutics, Inc.(a)(b)		4,730		8,372
Eloxx Pharmaceuticals, Inc.(b)		956		2,791
Endo International PLC(b)		10,502		48,309
Evofem Biosciences, Inc.(a)(b)		651		3,086
Evolus, Inc.(a)(b)		731		3,041
EyePoint Pharmaceuticals, Inc.(a)(b)		2,535		2,454
Fulcrum Therapeutics, Inc.(a)(b)		592		7,471
Heska Corp.(b)		331		23,435
Horizon Therapeutics PLC(b)		10,150		365,806
Innoviva, Inc.(a)(b)		3,124		44,298
Intersect ENT, Inc.(b)		1,481		17,002
Intra-Cellular Therapies, Inc.(b)		2,509		44,334
Jazz Pharmaceuticals PLC(b)		2,935		323,584
Kala Pharmaceuticals, Inc.(b)		1,183		11,783
Kaleido Biosciences, Inc.(a)(b)		497		3,235
Lannett Co., Inc.(a)(b)		1,551		14,796
Liquidia Technologies, Inc.(b)		517		2,575
Mallinckrodt PLC(a)(b)		5,268		21,388
Marinus Pharmaceuticals, Inc.(b)		3,984		8,127
Menlo Therapeutics, Inc.(a)(b)		2,334		4,248
MyoKardia, Inc.(b)		2,385		149,826
Nektar Therapeutics(a)(b)		9,018		173,146
NGM Biopharmaceuticals, Inc.(b)		938		17,128
Odonate Therapeutics, Inc.(b)		445		12,527
Omeros Corp.(a)(b)		2,663		44,259
Optinose, Inc.(b)		1,482		5,987
Osmotica Pharmaceuticals PLC(b)		478		1,912
Pacira BioSciences, Inc.(b)		2,242		92,572
Paratek Pharmaceuticals, Inc.(b)		1,587		6,491
Perrigo Co. PLC		6,784		361,587
Phathom Pharmaceuticals, Inc.(a)(b)		520		17,597

21

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Pharmaceuticals (continued)
Phibro Animal Health Corp., Class A		1,129	$	30,156
Prestige Consumer Healthcare, Inc.(b)		2,672		108,724
Reata Pharmaceuticals, Inc., Class A(b)		1,211		191,532
resTORbio, Inc.(b)		708		1,083
Revance Therapeutics, Inc.(b)		3,034		56,159
Satsuma Pharmaceuticals, Inc.(b)		309		6,056
SIGA Technologies, Inc.(b)		2,614		15,449
Supernus Pharmaceuticals, Inc.(b)		2,793		65,356
TherapeuticsMD, Inc.(a)(b)		10,752		16,988
Theravance Biopharma, Inc.(a)(b)		2,701		78,761
Tricida, Inc.(b)		1,268		38,357
Verrica Pharmaceuticals, Inc.(b)		573		6,916
WaVe Life Sciences Ltd.(b)		1,077		9,348
Xeris Pharmaceuticals, Inc.(a)(b)		1,923		5,192
Zogenix, Inc.(b)		2,441		68,909
Zynerba Pharmaceuticals, Inc.(a)(b)		862		3,336
				3,610,556
Professional Services — 0.9%
Acacia Research Corp.(b)		169		428
ASGN, Inc.(b)		2,591		120,352
Barrett Business Services, Inc.		358		17,513
BG Staffing, Inc.		361		4,386
CBIZ, Inc.(b)		2,793		66,334
CRA International, Inc.		243		10,238
Exponent, Inc.		2,800		196,924
Forrester Research, Inc.(b)		515		16,119
Franklin Covey Co.(b)		482		10,002
FTI Consulting, Inc.(a)(b)		1,925		245,168
GP Strategies Corp.(b)		562		4,474
Heidrick & Struggles International, Inc.		750		16,830
Huron Consulting Group, Inc.(b)		1,208		67,696
ICF International, Inc.		995		73,172
Insperity, Inc.		1,996		95,229
Kelly Services, Inc., Class A		1,631		25,199
Kforce, Inc.		1,322		39,594
Korn Ferry		3,075		88,652
ManpowerGroup, Inc.		3,191		236,900
Mistras Group, Inc.(b)		2,936		13,946
Paylocity Holding Corp.(b)		1,853		212,224
Resources Connection, Inc.		1,416		15,406
Robert Half International, Inc.		5,919		279,791
TriNet Group, Inc.(b)		2,417		118,360
TrueBlue, Inc.(b)		1,622		25,190
Upwork, Inc.(b)		3,215		26,781
Willdan Group, Inc.(b)		506		12,832
				2,039,740
Real Estate Management & Development — 0.5%
Alexander & Baldwin, Inc.		3,844		50,510
Altisource Portfolio Solutions SA(b)		342		2,856
American Realty Investors, Inc.(b)		117		930
CareTrust REIT, Inc.		5,211		85,877
Consolidated-Tomoka Land Co.(a)		242		10,171

Security	Shares		Value
Real Estate Management & Development (continued)
Cushman & Wakefield PLC(b)		5,900	$	71,803
Essential Properties Realty Trust, Inc.		4,911		72,143
eXp World Holdings, Inc.(a)(b)		1,035		9,501
Forestar Group, Inc.(b)		896		11,818
FRP Holdings, Inc.(b)		420		18,266
Global Medical REIT, Inc.		1,683		17,537
Howard Hughes Corp.(b)		2,219		120,181
Jones Lang LaSalle, Inc.		2,721		287,283
Kennedy-Wilson Holdings, Inc.		6,809		96,347
Marcus & Millichap, Inc.(b)		1,198		34,802
Maui Land & Pineapple Co., Inc.(b)		670		7,002
Newmark Group, Inc., Class A		8,681		33,682
Rafael Holdings, Inc., Class B(a)(b)		567		8,001
RE/MAX Holdings, Inc., Class A		1,101		28,945
Realogy Holdings Corp.		6,935		30,098
Redfin Corp.(b)		4,809		101,614
RMR Group, Inc., Class A		768		22,779
St. Joe Co.(b)		1,987		36,362
Stratus Properties, Inc.(b)		267		4,478
Tejon Ranch Co.(b)		1,400		19,180
Transcontinental Realty Investors, Inc.(b)		22		415
				1,182,581
Road & Rail — 0.6%
AMERCO		479		134,182
ArcBest Corp.		1,534		31,248
Avis Budget Group, Inc.(b)		3,147		51,863
Covenant Transportation Group, Inc., Class A(b)		683		6,065
Daseke, Inc.(a)(b)		1,855		3,163
Heartland Express, Inc.		2,786		54,578
Hertz Global Holdings, Inc.(a)(b)		5,881		23,759
Knight-Swift Transportation Holdings, Inc.(a)		6,699		249,069
Landstar System, Inc.		2,019		208,583
Marten Transport Ltd.		2,370		53,135
PAM Transportation Services, Inc.(b)		74		2,825
Ryder System, Inc.		2,803		99,226
Saia, Inc.(b)		1,434		132,674
Schneider National, Inc., Class B(a)		3,073		67,329
Universal Logistics Holdings, Inc.		322		4,485
US Xpress Enterprises, Inc., Class A(a)(b)		818		3,567
Werner Enterprises, Inc.		2,416		96,930
YRC Worldwide, Inc.(a)(b)		1,561		2,685
				1,225,366
Semiconductors & Semiconductor Equipment — 2.5%
Adesto Technologies Corp.(b)		1,294		15,334
Advanced Energy Industries, Inc.(b)		1,994		110,866
Alpha & Omega Semiconductor Ltd.(b)		978		11,765
Ambarella, Inc.(a)(b)		1,728		90,858
Amkor Technology, Inc.(b)		5,318		52,542

22

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Semiconductors & Semiconductor Equipment (continued)
Axcelis Technologies, Inc.(b)		1,832	$	42,796
AXT, Inc.(b)		2,786		15,407
Brooks Automation, Inc.(a)		3,651		140,527
Cabot Microelectronics Corp.(a)		1,576		193,123
CEVA, Inc.(b)		1,268		39,752
Cirrus Logic, Inc.(b)		3,134		236,930
Cohu, Inc.		2,339		38,664
Cree, Inc.(a)(b)		5,582		240,752
Diodes, Inc.(b)		2,200		111,958
DSP Group, Inc.(b)		1,222		21,079
Enphase Energy, Inc.(b)		4,943		231,481
Entegris, Inc.		7,102		385,141
First Solar, Inc.(a)(b)		4,368		192,236
FormFactor, Inc.(b)		4,053		94,435
GSI Technology, Inc.(a)(b)		1,299		10,041
Ichor Holdings Ltd.(b)		1,326		33,017
Impinj, Inc.(a)(b)		820		18,417
Inphi Corp.(a)(b)		2,428		234,399
Lattice Semiconductor Corp.(b)		6,856		154,329
MACOM Technology Solutions Holdings, Inc.(b)		2,423		74,289
MaxLinear, Inc.(b)		3,507		57,830
MKS Instruments, Inc.		2,859		286,558
Monolithic Power Systems, Inc.		2,227		445,200
NeoPhotonics Corp.(b)		1,932		18,586
NVE Corp.		250		14,193
ON Semiconductor Corp.(b)		21,651		347,390
Onto Innovation, Inc.(b)		2,581		83,779
PDF Solutions, Inc.(b)		1,827		29,177
Photronics, Inc.(b)		2,652		31,691
Power Integrations, Inc.		1,477		151,171
Rambus, Inc.(b)		6,023		75,468
Semtech Corp.(b)		3,524		159,426
Silicon Laboratories, Inc.(b)		2,264		220,106
SiTime Corp.(b)		230		4,982
SMART Global Holdings, Inc.(b)		659		16,666
SunPower Corp.(a)(b)		4,326		31,796
Teradyne, Inc.		8,837		552,666
Ultra Clean Holdings, Inc.(b)		2,266		41,672
Veeco Instruments, Inc.(b)		2,368		25,882
Xperi Corp.		2,949		45,061
				5,429,438
Software — 7.4%
A10 Networks, Inc.(b)		3,013		20,579
ACI Worldwide, Inc.(b)		6,157		168,702
Alarm.com Holdings, Inc.(b)		1,976		88,386
Altair Engineering, Inc., Class A(b)		2,238		73,832
Alteryx, Inc., Class A(a)(b)		2,404		272,085
American Software, Inc., Class A		1,154		19,018
Anaplan, Inc.(b)		4,527		184,973
Appfolio, Inc., Class A(b)		834		91,623
Appian Corp.(a)(b)		1,844		84,215
Aspen Technology, Inc.(a)(b)		3,568		364,828

Security	Shares		Value
Software (continued)
Avalara, Inc.(b)		2,511	$	224,408
Avaya Holdings Corp.(b)		5,473		54,402
Benefitfocus, Inc.(b)		1,427		15,454
Bill.Com Holdings, Inc.(a)(b)		613		36,100
Blackbaud, Inc.		2,617		144,615
Blackline, Inc.(b)		2,343		142,314
Bottomline Technologies DE, Inc.(b)		2,294		95,499
Box, Inc., Class A(b)		7,935		128,071
CDK Global, Inc.		6,656		261,448
Cerence, Inc.(b)		2,061		43,611
Ceridian HCM Holding, Inc.(b)		4,889		288,304
ChannelAdvisor Corp.(b)		1,308		13,512
Cloudera, Inc.(a)(b)		12,369		102,415
CommVault Systems, Inc.(b)		2,206		94,174
Cornerstone OnDemand, Inc.(b)		3,005		100,848
Coupa Software, Inc.(a)(b)		3,388		596,593
Digimarc Corp.(a)(b)		535		8,961
Digital Turbine, Inc.(b)		5,004		29,323
DocuSign, Inc.(b)		8,429		882,938
Domo, Inc., Class B(a)(b)		1,249		24,293
Dynatrace, Inc.(b)		6,727		200,801
Ebix, Inc.		1,153		24,132
eGain Corp.(b)		937		7,777
Elastic NV(a)(b)		2,822		181,003
Envestnet, Inc.(b)		2,516		157,300
Everbridge, Inc.(b)		1,790		199,370
Fair Isaac Corp.(b)		1,525		538,234
FireEye, Inc.(b)		11,012		126,748
Five9, Inc.(b)		3,225		298,861
ForeScout Technologies, Inc.(b)		2,345		74,477
GTY Technology Holdings, Inc.(b)		3,238		12,661
Guidewire Software, Inc.(b)		4,342		394,427
HubSpot, Inc.(b)		2,198		370,649
Ideanomics, Inc.(b)		6,280		3,783
Intelligent Systems Corp.(a)(b)		339		11,370
j2 Global, Inc.		2,432		196,117
LivePerson, Inc.(b)		3,421		81,899
LogMeIn, Inc.		2,629		224,674
Majesco(b)		388		2,165
Manhattan Associates, Inc.(a)(b)		3,300		234,102
Medallia, Inc.(b)		3,430		73,676
MicroStrategy, Inc., Class A(b)		434		54,827
Mitek Systems, Inc.(a)(b)		797		7,436
MobileIron, Inc.(b)		5,085		25,883
Model N, Inc.(b)		1,819		52,496
NetScout Systems, Inc.(b)		3,761		99,591
New Relic, Inc.(a)(b)		2,569		137,930
Nuance Communications, Inc.(b)		15,181		306,656
Nutanix, Inc., Class A(b)		9,052		185,475
OneSpan, Inc.(b)		1,929		32,407
PagerDuty, Inc.(a)(b)		2,106		44,458
Paycom Software, Inc.(a)(b)		2,622		684,394
Pegasystems, Inc.		1,946		162,725
Phunware, Inc.(a)(b)		2,186		1,585

23

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Software (continued)
Ping Identity Holding Corp.(b)		688	$	17,145
Pluralsight, Inc., Class A(a)(b)		3,066		50,405
Progress Software Corp.		2,429		99,370
Proofpoint, Inc.(b)		2,914		354,721
PROS Holdings, Inc.(b)		1,901		65,375
PTC, Inc.(b)		5,597		387,592
Q2 Holdings, Inc.(b)		2,323		185,190
QAD, Inc., Class A		567		23,995
Qualys, Inc.(a)(b)		1,822		192,112
Rapid7, Inc.(b)		2,694		122,712
RealPage, Inc.(b)		4,116		265,441
Rimini Street, Inc.(b)		1,025		4,736
RingCentral, Inc., Class A(b)		3,967		906,579
Rosetta Stone, Inc.(b)		1,016		17,353
SailPoint Technologies Holding, Inc.(b)		4,579		85,124
SecureWorks Corp., Class A(b)		307		3,494
SharpSpring, Inc.(b)		560		3,858
ShotSpotter, Inc.(a)(b)		398		13,679
Smartsheet, Inc., Class A(a)(b)		4,720		248,838
SolarWinds Corp.(a)(b)		2,509		42,603
Sprout Social, Inc., Class A(b)		454		7,636
SPS Commerce, Inc.(b)		1,891		104,969
SVMK, Inc.(b)		4,607		72,330
Synchronoss Technologies, Inc.(b)		1,988		6,859
Telenav, Inc.(b)		1,667		7,785
Tenable Holdings, Inc.(b)		1,984		51,703
Trade Desk, Inc., Class A(a)(b)		2,093		612,370
Tyler Technologies, Inc.(b)		2,034		652,283
Upland Software, Inc.(b)		1,284		40,613
Varonis Systems, Inc.(b)		1,570		105,269
Verint Systems, Inc.(b)		3,551		151,770
VirnetX Holding Corp.(a)(b)		2,268		12,610
Workiva, Inc.(b)		2,030		77,851
Yext, Inc.(a)(b)		5,478		70,118
Zendesk, Inc.(b)		6,002		461,434
Zix Corp.(a)(b)		2,614		14,325
Zscaler, Inc.(b)		3,745		251,215
Zuora, Inc., Class A(b)		5,125		54,171
Zynga, Inc., Class A(b)		46,570		351,138
				16,062,384
Specialty Retail — 1.8%
Aaron’s, Inc.		3,627		115,738
Abercrombie & Fitch Co., Class A		3,634		38,448
America’s Car-Mart, Inc.(b)		390		25,720
American Eagle Outfitters, Inc.		8,236		65,476
Asbury Automotive Group, Inc.(b)		1,040		70,200
Ascena Retail Group, Inc.(b)		167		242
AutoNation, Inc.(b)		2,933		109,225
Barnes & Noble Education, Inc.(a)(b)		2,329		4,169
Bed Bath & Beyond, Inc.(a)		7,150		44,258
Boot Barn Holdings, Inc.(a)(b)		1,721		31,770
Buckle, Inc.		1,381		21,143
Burlington Stores, Inc.(b)		3,484		636,492

Security	Shares		Value
Specialty Retail (continued)
Caleres, Inc.		2,626	$	21,297
Carvana Co.(b)		2,379		190,582
Cato Corp., Class A		1,035		11,654
Chico’s FAS, Inc.		5,664		8,496
Children’s Place, Inc.		890		26,308
Citi Trends, Inc.		536		6,089
Conn’s, Inc.(b)		866		5,854
Container Store Group, Inc.(b)		598		1,256
Designer Brands, Inc., Class A		3,803		24,149
Dick’s Sporting Goods, Inc.		3,349		98,427
Express, Inc.(b)		2,819		5,835
Five Below, Inc.(b)		2,932		264,349
Floor & Decor Holdings, Inc., Class A(a)(b)		3,449		146,238
Foot Locker, Inc.		5,683		145,655
GameStop Corp., Class A(a)		3,201		18,342
Genesco, Inc.(b)		995		18,835
GNC Holdings, Inc., Class A(a)(b)		2,984		1,717
Group 1 Automotive, Inc.		959		54,270
Guess?, Inc.		2,236		20,907
Haverty Furniture Cos., Inc.		837		11,325
Hibbett Sports, Inc.(b)		857		13,223
Hudson Ltd., Class A(b)		2,124		10,408
J. Jill, Inc.(b)		556		253
L Brands, Inc.		12,229		145,403
Lithia Motors, Inc., Class A		1,164		128,692
Lumber Liquidators Holdings, Inc.(b)		1,197		8,439
MarineMax, Inc.(b)		933		13,444
Michaels Cos., Inc.(a)(b)		3,568		10,847
Monro, Inc.		1,754		97,329
Murphy USA, Inc.(b)		1,478		157,850
National Vision Holdings, Inc.(a)(b)		4,031		106,821
Office Depot, Inc.		31,311		69,510
OneWater Marine, Inc., Class A(a)(b)		263		3,022
Party City Holdco, Inc.(b)		2,244		1,702
Penske Automotive Group, Inc.		1,904		68,506
Rent-A-Center, Inc.		2,551		50,778
RH(b)		860		123,651
RTW RetailWinds, Inc.(b)		745		232
Sally Beauty Holdings, Inc.(b)		6,359		61,746
Shoe Carnival, Inc.		466		11,007
Signet Jewelers Ltd.		2,517		25,321
Sleep Number Corp.(b)		1,440		43,056
Sonic Automotive, Inc., Class A		1,230		26,359
Sportsman’s Warehouse Holdings, Inc.(b)		2,093		14,986
Systemax, Inc.		536		10,645
Tailored Brands, Inc.(a)		2,097		3,481
Tilly’s, Inc., Class A		1,007		5,931
Urban Outfitters, Inc.(b)		3,831		66,430
Williams-Sonoma, Inc.		4,189		259,048
Winmark Corp.		118		17,700
Zumiez, Inc.(b)		1,205		25,474
				3,825,760

24

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Technology Hardware, Storage & Peripherals — 0.3%
3D Systems Corp.(a)(b)		6,367	$	54,056
AstroNova, Inc.		279		1,961
Avid Technology, Inc.(b)		1,351		9,484
Diebold Nixdorf, Inc.(b)		3,765		18,561
Immersion Corp.(b)		1,332		9,271
NCR Corp.(b)		6,825		140,049
Pure Storage, Inc., Class A(b)		12,851		185,054
Stratasys Ltd.(a)(b)		2,459		43,524
Synaptics, Inc.(b)		1,804		117,964
Xerox Holdings Corp.(b)		9,102		166,476
				746,400
Textiles, Apparel & Luxury Goods — 0.8%
Capri Holdings Ltd.(a)(b)		7,594		115,809
Carter’s, Inc.		2,244		175,481
Centric Brands, Inc.(a)(b)		270		224
Columbia Sportswear Co.		1,655		120,633
Crocs, Inc.(b)		3,797		92,077
Culp, Inc.		407		2,894
Deckers Outdoor Corp.(b)		1,519		225,966
Delta Apparel, Inc.(b)		593		7,638
Fossil Group, Inc.(b)		2,445		9,682
G-III Apparel Group Ltd.(a)(b)		2,728		30,908
Hanesbrands, Inc.		18,759		186,464
Kontoor Brands, Inc.(b)		2,412		46,817
Movado Group, Inc.		763		7,867
Oxford Industries, Inc.		926		38,818
Ralph Lauren Corp.		2,636		194,484
Rocky Brands, Inc.		332		7,121
Skechers U.S.A., Inc., Class A(b)		7,075		199,374
Steven Madden Ltd.		4,473		112,138
Superior Group of Cos., Inc.		496		4,325
Unifi, Inc.(b)		716		7,411
Vera Bradley, Inc.(b)		851		4,689
Vince Holding Corp.(b)		135		806
Wolverine World Wide, Inc.		4,447		91,119
				1,682,745
Thrifts & Mortgage Finance — 1.0%
Axos Financial, Inc.(b)		2,893		66,684
Banc of California, Inc.(a)		2,186		22,778
Berkshire Hills Bancorp, Inc.		2,358		40,180
Bridgewater Bancshares, Inc.(b)		1,023		10,363
Brookline Bancorp, Inc.		3,331		34,010
Capitol Federal Financial, Inc.		7,132		85,513
Columbia Financial, Inc.(b)		3,218		45,551
Dime Community Bancshares, Inc.		1,461		24,004
ESSA Bancorp, Inc.		470		5,640
Essent Group Ltd.		5,197		141,982
Federal Agricultural Mortgage Corp., Class C		428		28,518

Security	Shares		Value
Thrifts & Mortgage Finance (continued)
First Defiance Financial Corp.		1,940	$	33,717
Flagstar Bancorp, Inc.		2,156		55,862
Flushing Financial Corp.		1,428		17,836
FS Bancorp, Inc.		192		8,054
Greene County Bancorp, Inc.		450		9,446
Hingham Institution for Savings		74		11,324
Home Bancorp, Inc.		574		14,580
HomeStreet, Inc.		902		23,046
Kearny Financial Corp.		4,348		40,436
Ladder Capital Corp.		5,943		47,247
LendingTree, Inc.(a)(b)		415		103,489
Luther Burbank Corp.		1,439		15,484
Malvern Bancorp, Inc.(b)		474		6,233
Merchants Bancorp		272		4,189
Meridian Bancorp, Inc.		2,352		27,707
Meta Financial Group, Inc.		1,593		29,343
MGIC Investment Corp.		18,894		138,115
MMA Capital Holdings, Inc.(b)		195		4,974
Mr Cooper Group, Inc.(b)		3,232		30,963
New York Community Bancorp, Inc.		23,715		257,545
NMI Holdings, Inc., Class A(b)		3,997		54,039
Northfield Bancorp, Inc.		2,382		26,845
Northwest Bancshares, Inc.		6,697		71,055
OceanFirst Financial Corp.		2,906		48,966
Ocwen Financial Corp.(a)(b)		5,694		2,401
OP Bancorp		872		6,156
PCSB Financial Corp.		942		12,858
Pioneer Bancorp, Inc.(a)(b)		699		7,395
Ponce de Leon Federal Bank(a)(b)		718		6,613
Provident Bancorp, Inc.(b)		357		3,406
Provident Financial Holdings, Inc.		238		3,106
Provident Financial Services, Inc.		2,893		41,515
Prudential Bancorp, Inc.		593		7,294
Radian Group, Inc.		11,080		165,978
Riverview Bancorp, Inc.		1,280		7,078
Southern Missouri Bancorp, Inc.		443		10,512
Sterling Bancorp, Inc.		690		2,491
Territorial Bancorp, Inc.		588		14,776
TFS Financial Corp.		3,016		41,168
Timberland Bancorp, Inc.		537		10,391
TrustCo Bank Corp. NY		3,947		24,866
Velocity Financial, Inc.(b)		346		1,311
Walker & Dunlop, Inc.		1,578		60,643
Washington Federal, Inc.		3,912		104,607
Waterstone Financial, Inc.		1,194		17,337
Western New England Bancorp, Inc.		2,243		13,480
WSFS Financial Corp.		2,789		81,383
				2,232,483
Tobacco — 0.1%
22nd Century Group, Inc.(b)		4,799		4,512
Pyxus International, Inc.(a)(b)		320		838
Turning Point Brands, Inc.		412		9,600
Universal Corp.		1,299		62,833
Vector Group Ltd.		5,197		55,608
				133,391

25

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund (Percentages shown are based on Net Assets)

Security	Shares		Value
Trading Companies & Distributors — 0.9%
Air Lease Corp.		5,804	$	151,775
Applied Industrial Technologies, Inc.		1,963		102,842
Beacon Roofing Supply, Inc.(b)		2,948		64,856
BlueLinx Holdings, Inc.(b)		357		1,953
BMC Stock Holdings, Inc.(b)		3,662		77,818
CAI International, Inc.(a)(b)		723		11,922
DXP Enterprises, Inc.(b)		783		11,682
EVI Industries, Inc.(b)		255		4,659
Foundation Building Materials, Inc.(b)		1,014		11,864
GATX Corp.		1,920		113,856
General Finance Corp.(a)(b)		582		3,393
GMS, Inc.(b)		2,360		43,377
H&E Equipment Services, Inc.		1,513		24,601
HD Supply Holdings, Inc.(b)		8,737		259,314
Herc Holdings, Inc.(b)		1,145		32,323
Kaman Corp.		1,632		63,256
Lawson Products, Inc.(b)		217		7,293
MRC Global, Inc.(b)		3,770		20,207
MSC Industrial Direct Co., Inc., Class A		2,344		139,796
NOW, Inc.(b)		6,819		42,073
Rush Enterprises, Inc., Class A		1,472		55,200
Rush Enterprises, Inc., Class B		335		11,829
SiteOne Landscape Supply, Inc.(a)(b)		2,166		191,973
Textainer Group Holdings Ltd.(a)(b)		1,992		17,490
Titan Machinery, Inc.(b)		920		8,648
Transcat, Inc.(b)		318		8,933
Triton International Ltd.		2,936		90,957
Univar Solutions, Inc.(a)(b)		8,958		130,070
Veritiv Corp.(a)(b)		697		6,531
Watsco, Inc.		1,701		273,844
WESCO International, Inc.(a)(b)		2,371		61,338
Willis Lease Finance Corp.(b)		123		2,461
				2,048,134
Transportation Infrastructure — 0.1%
Macquarie Infrastructure Corp.		3,976		109,698
Water Utilities — 0.5%
American States Water Co.		1,997		158,502
Artesian Resources Corp., Class A		484		16,713
Cadiz, Inc.(b)		909		9,699
California Water Service Group		2,573		115,579

Security	Shares		Value
Water Utilities (continued)
Consolidated Water Co. Ltd.		675	$	10,138
Essential Utilities, Inc.		11,632		486,101
Global Water Resources, Inc.		556		5,977
Middlesex Water Co.		896		54,029
Pure Cycle Corp.(a)(b)		854		8,771
SJW Group		1,421		84,592
York Water Co.		605		24,394
				974,495
Wireless Telecommunication Services — 0.2%
Boingo Wireless, Inc.(b)		2,361		32,912
Gogo, Inc.(a)(b)		2,348		3,827
Shenandoah Telecommunications Co.		2,595		138,859
Spok Holdings, Inc.		799		8,198
Telephone & Data Systems, Inc.		5,659		111,030
United States Cellular Corp.(b)		951		30,270
				325,096
Total Common Stocks — 98.1% (Cost — $215,230,139)				212,395,723
Investment Companies — 0.9%
Equity Fund — 0.9%
iShares Russell 2000 ETF(a)(f)		8,111		1,056,944
iShares Russell Mid-Cap ETF(a)(f)		16,578		817,959
Total Investment Companies — 0.9% (Cost — $1,669,046)				1,874,903
Total Long-Term Investments — 99.0% (Cost — $216,899,185)				214,270,626
Short-Term Securities — 11.2%
BlackRock Cash Funds: Institutional, SL Agency Shares,     0.92%(d)(e)(f)		22,650,080		22,674,995
BlackRock Cash Funds: Treasury, SL Agency Shares,     0.21%(d)(f)		1,566,284		1,566,284
Total Short-Term Securities — 11.2% (Cost — $24,219,451)				24,241,279
Total Investments — 110.2% (Cost — $241,118,636)				238,511,905
Liabilities in Excess of Other Assets — (10.2)%				(22,074,172	)
Net Assets — 100.0%			$	216,437,733

^(a)  Security, or a portion of the security, is on loan.

^(b)  Non-income producing security.

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

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

^(e)  Security was purchased with the cash collateral from loaned securities.

26

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund     

^(f)  Investments in issuers considered to be an affiliate/affiliates of the fund for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

Affiliated Issuer	Shares Held at 07/31/19		Shares Purchased			Shares Sold			Shares Held at 04/30/20		Value at 04/30/20		Income			Net Realized Gain (Loss) (a)			Change in Unrealized Appreciation (Depreciation)
BlackRock Cash Funds: Institutional, SL Agency Shares		15,171,717		7,478,363	(b)		—			22,650,080	$	22,674,995	$	148,995	(c)	$	(2,968	)	$	17,449
BlackRock Cash Funds: Treasury, SL Agency Shares		1,035,862		530,422	(b)		—			1,566,284		1,566,284		19,291			—			—
PennyMac Mortgage Investment Trust		3,109		2,118			(82	)		5,145		53,508		4,466			30			(43,226	)
iShares Russell 2000 ETF		4,541		36,582			(33,012	)		8,111		1,056,944		8,942			(318,246	)		117,213
iShares Russell Mid-Cap ETF		10,293		93,450			(87,165	)		16,578		817,959		8,618			(207,225	)		59,830
											$	26,169,690	$	190,312		$	(528,409	)	$	151,266

^(a)  Includes net capital gain distributions, if applicable.

^(b)  Represents net shares purchased/sold.

^(c)  Represents securities lending income earned from the reinvestment of cash collateral from loaned securities, net of fees and collateral investment expenses, and other payments to and from borrowers of securities.

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

Portfolio Abbreviations
ETF	Exchange-Traded Fund
MBIA	Municipal Bond Investors Assurance (National Public Finance Guaranty Corp.)
Radian	Radian Guaranty, Inc.
REIT	Real Estate Investment Trust
S&P	Standard & Poor’s

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
Russell 2000 E-Mini Index		11		06/19/20	$	719	$	13,512
S&P MidCap 400 E-Mini Index		6		06/19/20		985		12,464
							$	25,976

27

Schedule of Investments  (unaudited) (continued) April 30, 2020 iShares Russell Small/Mid-Cap Index Fund

Fair Value Hierarchy as of Period End

Various inputs are used in determining the fair value of investments and derivative financial instruments. These inputs to valuation techniques are categorized into a fair value hierarchy consisting of three broad levels for financial reporting purposes as follows:

• Level 1 — Unadjusted price quotations in active markets/exchanges for identical assets or liabilities that the Fund has the ability to access

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

• Level 3 — Unobservable inputs based on the best information available in the circumstances, to the extent observable inputs are not available (including the BlackRock Global Valuation Methodologies Committee’s (the “Global Valuation Committee’s”) assumptions used in determining the fair value of investments)

The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). Accordingly, the degree of judgment exercised in determining fair value is greatest for instruments categorized in Level 3. The inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, for disclosure purposes, the fair value hierarchy classification is determined based on the lowest level input that is significant to the fair value measurement in its entirety. Investments classified within Level 3 have significant unobservable inputs used by the Global Valuation Committee in determining the price for Fair Valued Investments. Level 3 investments include equity or debt issued by privately held companies 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 investments is based on the pricing transparency of the investments and derivative financial instruments and is not necessarily an indication of the risks associated with investing in those securities. For information about the Fund’s policy regarding valuation of investments, refer to the Fund’s most recent financial statements as contained in its semi-annual report.

The following tables summarize the Fund’s investments categorized in the disclosure hierarchy:

	Level 1		Level 2		Level 3		Total
Assets:
Investments:
Long-Term Investments:
Common Stocks(a)	$	212,395,676	$	—	$	47	$	212,395,723
Investment Companies		1,874,903		—		—		1,874,903
Short-Term Securities:
Short-Term Securities		24,241,279		—		—		24,241,279
	$	238,511,858	$	—	$	47	$	238,511,905
Derivative Financial Instruments(b)
Assets:
Equity contracts	$	25,976	$	—	$	—	$	25,976

^(a)  See above Schedule of Investments for values in each industry.

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

28