Schedule of Investments (unaudited)	iShares® Factors US Blend Style ETF
June 30, 2021	(Percentages shown are based on Net Assets)

Security	Shares		Value
Common Stocks
Advertising — 0.0%
Omnicom Group Inc.		16	$	1,280
Aerospace & Defense — 1.1%
BWX Technologies Inc.		70		4,068
Lockheed Martin Corp.		96		36,322
Northrop Grumman Corp.		74		26,894
				67,284
Agricultural & Farm Machinery — 0.1%
AGCO Corp.		29		3,781
Toro Co. (The)		12		1,319
				5,100
Air Freight & Logistics — 1.1%
Expeditors International of Washington Inc.		235		29,751
FedEx Corp.		8		2,387
United Parcel Service Inc., Class B		183		38,058
				70,196
Alternative Carriers — 0.3%
Lumen Technologies Inc.		1,208		16,417
Apparel Retail — 0.1%
L Brands Inc.		73		5,260
Apparel, Accessories & Luxury Goods — 0.5%
Carter’s Inc.		26		2,682
Columbia Sportswear Co.		69		6,787
Lululemon Athletica Inc.(a)		25		9,124
Ralph Lauren Corp.		87		10,250
				28,843
Application Software — 5.7%
Adobe Inc.(a)		46		26,939
Anaplan Inc.(a)		77		4,104
Aspen Technology Inc.(a)		300		41,262
Atlassian Corp. PLC, Class A(a)		131		33,649
Avalara Inc.(a)		27		4,369
Cadence Design Systems Inc.(a)		242		33,110
Citrix Systems Inc.		343		40,224
Dropbox Inc., Class A(a)		412		12,488
Dynatrace Inc.(a)		171		9,990
Fair Isaac Corp.(a)		73		36,696
HubSpot Inc.(a)		36		20,978
Intuit Inc.		47		23,038
Manhattan Associates Inc.(a)		170		24,623
Nutanix Inc., Class A(a)		84		3,210
Slack Technologies Inc., Class A(a)		185		8,195
Smartsheet Inc., Class A(a)		78		5,641
Synopsys Inc.(a)		20		5,516
Zoom Video Communications Inc., Class A(a)		46		17,803
				351,835
Asset Management & Custody Banks — 1.0%
Ameriprise Financial Inc.		138		34,345
Franklin Resources Inc.		44		1,408
State Street Corp.		312		25,671
				61,424
Automobile Manufacturers — 0.7%
Tesla Inc.(a)		64		43,501
Automotive Retail — 0.6%
AutoNation Inc.(a)		116		10,998

Security	Shares		Value
Automotive Retail (continued)
AutoZone Inc.(a)		10	$	14,922
O’Reilly Automotive Inc.(a)		18		10,192
				36,112
Biotechnology — 3.3%
AbbVie Inc.		768		86,508
Acceleron Pharma Inc.(a)		100		12,549
Amgen Inc.		187		45,581
Biogen Inc.(a)		42		14,543
Gilead Sciences Inc.		77		5,302
Moderna Inc.(a)		93		21,853
Vertex Pharmaceuticals Inc.(a)		92		18,550
				204,886
Building Products — 1.7%
AZEK Co. Inc. (The)(a)		66		2,802
Carrier Global Corp.		389		18,905
Lennox International Inc.		78		27,363
Masco Corp.		252		14,845
Trane Technologies PLC		3		553
Trex Co. Inc.(a)		363		37,102
				101,570
Cable & Satellite — 0.2%
Charter Communications Inc., Class A(a)		9		6,493
Comcast Corp., Class A		17		969
Sirius XM Holdings Inc.		371		2,427
				9,889
Communications Equipment — 1.8%
Arista Networks Inc.(a)		10		3,623
Ciena Corp.(a)		207		11,776
Cisco Systems Inc.		471		24,963
Lumentum Holdings Inc.(a)		175		14,355
Motorola Solutions Inc.		156		33,829
Ubiquiti Inc.		69		21,541
				110,087
Computer & Electronics Retail — 0.5%
Best Buy Co. Inc.		289		33,229
Construction Machinery & Heavy Trucks — 0.5%
Allison Transmission Holdings Inc.		733		29,129
Consumer Finance — 2.4%
Ally Financial Inc.		882		43,959
American Express Co.		5		826
Capital One Financial Corp.		138		21,347
Discover Financial Services		32		3,785
OneMain Holdings Inc.		700		41,937
Synchrony Financial		518		25,134
Upstart Holdings Inc.(a)		69		8,618
				145,606
Data Processing & Outsourced Services — 1.7%
Concentrix Corp.(a)		127		20,422
Mastercard Inc., Class A		86		31,398
Paychex Inc.		60		6,438
PayPal Holdings Inc.(a)		6		1,749
StoneCo Ltd., Class A(a)		340		22,800
Visa Inc., Class A		48		11,223
Western Union Co. (The)		440		10,107
				104,137
Department Stores — 0.0%
Kohl’s Corp.		11		606

1

Schedule of Investments (unaudited) (continued)	iShares® Factors US Blend Style ETF
June 30, 2021	(Percentages shown are based on Net Assets)

Security	Shares		Value
Department Stores (continued)
Nordstrom Inc.(a)		59	$	2,158
				2,764
Distributors — 0.4%
Pool Corp.		50		22,933
Diversified Chemicals — 0.0%
Chemours Co. (The)		16		557
Diversified REITs — 0.3%
VEREIT Inc.		328		15,065
Diversified Support Services — 0.1%
Cintas Corp.		7		2,674
IAA Inc.(a)(b)		6		327
				3,001
Electric Utilities — 0.4%
Entergy Corp.		100		9,970
Hawaiian Electric Industries Inc.		8		338
NRG Energy Inc.		367		14,790
				25,098
Electrical Components & Equipment — 0.4%
nVent Electric PLC		465		14,527
Rockwell Automation Inc.		2		572
Shoals Technologies Group Inc., Class A(a)		217		7,703
				22,802
Electronic Equipment & Instruments — 0.5%
Vontier Corp.		527		17,169
Zebra Technologies Corp., Class A(a)		30		15,885
				33,054
Electronic Manufacturing Services — 0.2%
Jabil Inc.		205		11,915
Environmental & Facilities Services — 0.0%
Republic Services Inc.		11		1,210
Waste Management Inc.		4		561
				1,771
Fertilizers & Agricultural Chemicals — 0.6%
Scotts Miracle-Gro Co. (The)		180		34,546
Financial Exchanges & Data — 1.5%
MSCI Inc.		110		58,639
S&P Global Inc.		84		34,478
				93,117
Food Retail — 2.3%
Albertsons Companies Inc., Class A(b)		4,029		79,210
Grocery Outlet Holding Corp.(a)(b)		372		12,893
Kroger Co. (The)		1,228		47,045
				139,148
Footwear — 0.0%
Nike Inc., Class B		4		618
General Merchandise Stores — 1.3%
Dollar General Corp.		69		14,931
Target Corp.		276		66,720
				81,651
Health Care Distributors — 0.3%
Cardinal Health Inc.		143		8,164
McKesson Corp.		44		8,414
				16,578

Security	Shares		Value
Health Care Equipment — 0.4%
Abbott Laboratories		107	$	12,404
Hologic Inc.(a)		13		867
IDEXX Laboratories Inc.(a)		21		13,263
				26,534
Health Care Facilities — 0.5%
HCA Healthcare Inc.		148		30,598
Health Care Services — 2.1%
Amedisys Inc.(a)		52		12,736
Chemed Corp.		53		25,149
CVS Health Corp.		314		26,200
DaVita Inc.(a)		224		26,976
Signify Health Inc., Class A(a)		1,178		35,847
				126,908
Health Care Supplies — 0.2%
Quidel Corp.(a)		75		9,609
Health Care Technology — 0.2%
Veeva Systems Inc., Class A(a)		41		12,749
Home Furnishings — 0.1%
Tempur Sealy International Inc.		203		7,956
Home Improvement Retail — 1.5%
Home Depot Inc. (The)		213		67,924
Lowe’s Companies Inc.		126		24,440
				92,364
Homebuilding — 0.2%
PulteGroup Inc.		213		11,623
Homefurnishing Retail — 0.4%
Williams-Sonoma Inc.		160		25,544
Household Products — 1.5%
Clorox Co. (The)		48		8,636
Colgate-Palmolive Co.		25		2,034
Kimberly-Clark Corp.		279		37,324
Procter & Gamble Co. (The)		341		46,011
				94,005
Housewares & Specialties — 0.0%
Newell Brands Inc.		95		2,610
Human Resource & Employment Services — 0.2%
ManpowerGroup Inc.		16		1,902
Robert Half International Inc.		109		9,698
				11,600
Hypermarkets & Super Centers — 1.6%
Costco Wholesale Corp.		108		42,732
Walmart Inc.		400		56,408
				99,140
Independent Power Producers & Energy Traders — 0.6%
Vistra Corp.		2,010		37,286
Industrial Machinery — 2.0%
Dover Corp.		73		10,994
Graco Inc.		7		530
Otis Worldwide Corp.		1,371		112,106
				123,630
Integrated Telecommunication Services — 0.8%
Verizon Communications Inc.		863		48,354

2

Schedule of Investments (unaudited) (continued)	iShares® Factors US Blend Style ETF
June 30, 2021	(Percentages shown are based on Net Assets)

Security	Shares		Value
Interactive Home Entertainment — 2.0%
Activision Blizzard Inc.		153	$	14,602
Electronic Arts Inc.		105		15,102
Playtika Holding Corp.(a)		3,084		73,523
Take-Two Interactive Software Inc.(a)		126		22,305
				125,532
Interactive Media & Services — 2.5%
Alphabet Inc., Class A(a)		14		34,185
Alphabet Inc., Class C, NVS(a)		13		32,582
Facebook Inc., Class A(a)		197		68,499
Match Group Inc.(a)		102		16,448
				151,714
Internet & Direct Marketing Retail — 4.4%
Amazon.com Inc.(a)		59		202,969
eBay Inc.		494		34,684
Qurate Retail Inc.		1,088		14,242
Wayfair Inc., Class A(a)(b)		48		15,154
				267,049
Internet Services & Infrastructure — 1.1%
Akamai Technologies Inc.(a)		47		5,480
GoDaddy Inc., Class A(a)		67		5,826
MongoDB Inc.(a)		3		1,085
Okta Inc.(a)		29		7,096
VeriSign Inc.(a)		201		45,766
				65,253
Investment Banking & Brokerage — 4.6%
Evercore Inc., Class A		640		90,093
Goldman Sachs Group Inc. (The)		40		15,181
Jefferies Financial Group Inc.		2,529		86,492
Lazard Ltd., Class A		1,057		47,830
LPL Financial Holdings Inc.		38		5,129
Morgan Stanley		251		23,014
Raymond James Financial Inc.		48		6,235
Virtu Financial Inc., Class A		359		9,919
				283,893
Leisure Products — 0.1%
Peloton Interactive Inc., Class A(a)		31		3,845
Polaris Inc.		10		1,369
				5,214
Life & Health Insurance — 1.7%
Aflac Inc.		427		22,914
Athene Holding Ltd., Class A(a)		132		8,910
Brighthouse Financial Inc.(a)		477		21,723
Primerica Inc.		214		32,772
Principal Financial Group Inc.		217		13,712
Unum Group		221		6,276
				106,307
Life Sciences Tools & Services — 0.6%
Mettler-Toledo International Inc.(a)		10		13,853
Sotera Health Co.(a)		356		8,626
Thermo Fisher Scientific Inc.		32		16,143
				38,622
Managed Health Care — 0.2%
Molina Healthcare Inc.(a)		41		10,375
Metal & Glass Containers — 0.1%
Silgan Holdings Inc.		215		8,923
Multi-line Insurance — 0.4%
American Financial Group Inc./OH		151		18,833

Security	Shares		Value
Multi-line Insurance (continued)
Assurant Inc.		5	$	781
Hartford Financial Services Group Inc. (The)		112		6,940
				26,554
Multi-Utilities — 0.0%
Ameren Corp.		4		320
Office REITs — 0.3%
SL Green Realty Corp.		240		19,200
Oil & Gas Exploration & Production — 0.5%
APA Corp.		65		1,406
Devon Energy Corp.		793		23,148
Marathon Oil Corp.		426		5,802
				30,356
Oil & Gas Storage & Transportation — 0.3%
Antero Midstream Corp.		1,770		18,390
Other Diversified Financial Services — 0.4%
Equitable Holdings Inc.		718		21,863
Packaged Foods & Meats — 0.7%
Campbell Soup Co.		227		10,349
Flowers Foods Inc.		895		21,659
General Mills Inc.		31		1,889
Hershey Co. (The)		37		6,444
JM Smucker Co. (The)		28		3,628
				43,969
Paper Packaging — 1.0%
Amcor PLC		3,977		45,577
Avery Dennison Corp.		18		3,784
Graphic Packaging Holding Co.		59		1,070
Sealed Air Corp.		224		13,272
				63,703
Personal Products — 0.7%
Estee Lauder Companies Inc. (The), Class A		55		17,495
Herbalife Nutrition Ltd.(a)		521		27,472
				44,967
Pharmaceuticals — 4.8%
Bristol-Myers Squibb Co.		780		52,120
Eli Lilly & Co.		244		56,003
Johnson & Johnson		379		62,436
Merck & Co. Inc.		1,233		95,890
Organon & Co.(a)		125		3,782
Pfizer Inc.		410		16,056
Royalty Pharma PLC, Class A		203		8,321
Zoetis Inc.		2		373
				294,981
Property & Casualty Insurance — 1.5%
Allstate Corp. (The)		336		43,828
Assured Guaranty Ltd.		79		3,751
First American Financial Corp.		226		14,091
Hanover Insurance Group Inc. (The)		37		5,019
Mercury General Corp.		58		3,767
White Mountains Insurance Group Ltd.		17		19,516
				89,972
Publishing — 0.0%
News Corp., Class B		90		2,192
Regional Banks — 0.5%
Popular Inc.		414		31,071

3

Schedule of Investments (unaudited) (continued)	iShares® Factors US Blend Style ETF
June 30, 2021	(Percentages shown are based on Net Assets)

Security	Shares		Value
Research & Consulting Services — 2.4%
Booz Allen Hamilton Holding Corp.		959	$	81,688
CACI International Inc., Class A(a)		46		11,735
Dun & Bradstreet Holdings Inc.(a)		695		14,852
FTI Consulting Inc.(a)		242		33,060
Leidos Holdings Inc.		62		6,268
				147,603
Restaurants — 1.2%
Domino’s Pizza Inc.		82		38,252
McDonald’s Corp.		10		2,310
Starbucks Corp.		101		11,293
Yum! Brands Inc.		209		24,041
				75,896
Retail REITs — 0.5%
Brixmor Property Group Inc.		252		5,768
Brookfield Property REIT Inc., Class A		1,262		23,839
				29,607
Semiconductor Equipment — 1.5%
Applied Materials Inc.		121		17,230
Enphase Energy Inc.(a)		53		9,732
KLA Corp.		50		16,211
Lam Research Corp.		30		19,521
Teradyne Inc.		215		28,802
				91,496
Semiconductors — 3.6%
Advanced Micro Devices Inc.(a)		42		3,945
Broadcom Inc.		34		16,213
Cirrus Logic Inc.(a)		168		14,300
Intel Corp.		469		26,330
Maxim Integrated Products Inc.		17		1,791
NVIDIA Corp.		49		39,205
Qorvo Inc.(a)		147		28,760
QUALCOMM Inc.		310		44,308
Texas Instruments Inc.		233		44,806
				219,658
Specialized Consumer Services — 0.1%
H&R Block Inc.		261		6,128
Specialty Stores — 0.8%
Dick’s Sporting Goods Inc.		172		17,233
Leslie’s Inc.(a)		1,051		28,892
Tractor Supply Co.		16		2,977
				49,102
Steel — 0.6%
Reliance Steel & Aluminum Co.		237		35,763
Systems Software — 8.1%
Crowdstrike Holdings Inc., Class A(a)		195		49,005
FireEye Inc.(a)		43		869
Fortinet Inc.(a)		175		41,683
McAfee Corp., Class A		748		20,959

Security	Shares		Value
Systems Software (continued)
Microsoft Corp.		1,272	$	344,585
Oracle Corp.		339		26,388
Zscaler Inc.(a)		76		16,421
				499,910
Technology Distributors — 0.2%
Avnet Inc.		28		1,123
CDW Corp./DE		51		8,907
SYNNEX Corp.		16		1,948
				11,978
Technology Hardware, Storage & Peripherals — 7.3%
Apple Inc.		2,572		352,261
Hewlett Packard Enterprise Co.		2,430		35,429
HP Inc.		701		21,163
NetApp Inc.		172		14,073
Xerox Holdings Corp.		938		22,034
				444,960
Tobacco — 0.9%
Altria Group Inc.		184		8,773
Philip Morris International Inc.		453		44,897
				53,670
Trading Companies & Distributors — 0.2%
WW Grainger Inc.		26		11,388
Trucking — 0.0%
Schneider National Inc., Class B		62		1,350
Total Common Stocks — 99.7%
(Cost: $4,601,727)				6,119,842
Short-Term Investments
Money Market Funds — 0.7%
BlackRock Cash Funds: Institutional, SL Agency Shares, 0.07%(c)(d)(e)		32,563		32,582
BlackRock Cash Funds: Treasury, SL Agency Shares, 0.00%(c)(d)		10,000		10,000
				42,582
Total Short -Term Investments — 0.7%
(Cost: $42,580)				42,582
Total Investments in Securities — 100.4%
(Cost: $4,644,307)				6,162,424
Other Assets, Less Liabilities — (0.4)%				(24,196	)
Net Assets — 100.0%			$	6,138,228

^(a) Non-income producing security.

^(b) All or a portion of this security is on loan.

^(c) Affiliate of the Fund.

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

^(e) All or a portion of this security was purchased with cash collateral received from loaned securities.

4

Schedule of Investments (unaudited) (continued)	iShares® Factors US Blend Style ETF
June 30, 2021

Affiliates

Investments in issuers considered to be affiliate(s) of the Fund during the period ended June 30, 2021 for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

Affiliated Issuer	Value at 03/31/21		Purchases at Cost			Proceeds from Sales			Net Realized Gain (Loss)		Change in Unrealized Appreciation (Depreciation)		Value at 06/30/21		Shares Held at 06/30/21		Income			Capital Gain Distributions from Underlying Funds
BlackRock Cash Funds: Institutional, SL Agency Shares	$	162,453	$	—		$	(129,878	)(a)	$	5	$	2	$	32,582		32,563	$	625	(b)	$	—
BlackRock Cash Funds: Treasury, SL Agency Shares		—		10,000	(a)		—			—		—		10,000		10,000		—			—
									$	5	$	2	$	42,582			$	625		$	—

^(a) Represents net amount purchased (sold).

^(b) All or a portion 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.

OTC Total Return Swaps

Reference Entity	Payment Frequency	Counterparty(a)	Termination Date	Net Notional		Accrued Unrealized Appreciation (Depreciation)			Net Value of Reference Entity		Gross Notional Amount Net Asset Percentage
Equity Securities Long	Monthly	Goldman Sachs & Co.(b)	02/27/23	$	4,808	$	(279	)(c)	$	4,497		0.1	%
	Monthly	JPMorgan Securities PLC(d)	02/08/23		4,823		(267	)(e)		4,533		0.1
						$	(546	)	$	9,030

^(a) The Fund receives the total return on a portfolio of long positions underlying the total return swap. The Fund pays the total return on a portfolio of short positions underlying the total return swap. In addition, the Fund pays or receives a variable rate of interest, based on a specified benchmark. The benchmark and spread are determined based upon the country and/or currency of the individual underlying positions.

^(c) Amount includes $32 of net dividends and financing fees.

^(e) Amount includes $23 of net dividends, payable for referenced securities purchased and financing fees.

The following are the specified benchmarks (plus or minus a range) used in determining the variable rate of interest:

	(b)	(d)
Range:	65 basis points	65 basis points
Benchmarks:	USD - 1M US Dollar LIBOR BBA	USD - 1M US Dollar LIBOR BBA

5

Schedule of Investments (unaudited) (continued)	iShares® Factors US Blend Style ETF
June 30, 2021

The following table represents the individual long positions and related values of the equity securities underlying the total return swap with Goldman Sachs & Co. as of June 30, 2021 expiration 2/27/2023.

	Shares		Value		% of Basket Value
Reference Entity — Long
Insurance
Fidelity National Financial Inc.		92	$	3,998		88.9	%
First American Financial Corp.		8		499		11.1
Net Value of Reference Entity — Goldman Sachs & Co.			$	4,497

The following table represents the individual long positions and related values of the equity securities underlying the total return swap with JPMorgan Securities PLC as of June 30, 2021 expiration 2/8/2023.

	Shares		Value		% of Basket Value
Reference Entity — Long
Insurance
Assured Guaranty Ltd.		25	$	1,187		26.2	%
Fidelity National Financial Inc.		77		3,346		73.8
Net Value of Reference Entity — JPMorgan Securities PLC			$	4,533

Fair Value Measurements

Various inputs are used in determining the fair value of financial instruments. For description of the input levels and information about the Fund’s policy regarding valuation of financial instruments, refer to a recently published shareholder report. Shareholder reports are available on the Fund’s website at iShares.com and on the U.S. Securities and Exchange Commission website at sec.gov.

The following table summarizes the value of the Fund’s investments according to the fair value hierarchy as of June 30, 2021. The breakdown of the Fund’s investments into major categories is disclosed in the Schedule of Investments above.

	Level 1		Level 2			Level 3		Total
Investments
Assets
Common Stocks	$	6,119,842	$	—		$	—	$	6,119,842
Money Market Funds		42,582		—			—		42,582
	$	6,162,424	$	—		$	—	$	6,162,424
Derivative financial instruments(a)
Liabilities
Swaps	$	—	$	(546	)	$	—	$	(546	)

^(a) Shown at the unrealized appreciation (depreciation) on the contracts.

Portfolio Abbreviations - Equity

NVS	Non-Voting Shares
REIT	Real Estate Investment Trust

6