United States Treasury Inflation Indexed Bonds


Security	Par (000)		Value

U.S. Government Obligations

U.S. Government Obligations — 99.3%
U.S. Treasury Inflation Indexed Bonds, 0.13%, 01/15/30	$	297,427	$	304,843,504
U.S. Treasury Inflation-Indexed Bonds
0.13%, 04/15/20		373,955		373,664,207
0.13%, 04/15/21		1,934,584		1,930,326,381
0.13%, 01/15/22		424,595		425,612,775
0.13%, 04/15/22		915,899		917,753,841
0.13%, 01/15/23		831,044		836,821,818
0.13%, 07/15/24		932,680		949,496,583
0.13%, 10/15/24		107,067		109,093,341
0.13%, 07/15/26		1,133,352		1,159,686,789
0.25%, 01/15/25		821,505		840,374,520
0.25%, 07/15/29		115,518		120,062,243
0.38%, 07/15/23		311,593		318,366,178
0.38%, 07/15/25		1,107,610		1,147,183,789
0.38%, 01/15/27		749,777		777,795,295
0.38%, 07/15/27		848,276		885,051,748
0.50%, 04/15/24		355,576		365,363,308
0.50%, 01/15/28		245,627		258,160,317
0.63%, 07/15/21		384,449		388,413,640
0.63%, 04/15/23		156,303		159,821,611
0.63%, 01/15/24		447,403		461,607,126
0.63%, 01/15/26		1,538,176		1,612,636,336
0.63%, 02/15/43		127,399		137,492,284
0.75%, 07/15/28		541,609		584,332,908
0.75%, 02/15/42		659,405		728,355,234
0.75%, 02/15/45		789,726		877,285,938
0.88%, 01/15/29		263,903		287,740,046
0.88%, 02/15/47		133,606		154,163,946
1.00%, 02/15/46		254,554		299,999,186
1.00%, 02/15/48		230,154		274,368,882
1.00%, 02/15/49		47,301		56,836,091


Security	Par/ Shares (000)		Value

U.S. Government Obligations (continued)
1.13%, 01/15/21	$	21,163	$	21,323,541
1.25%, 07/15/20		40,772		41,057,736
1.38%, 02/15/44		608,750		763,471,061
1.75%, 01/15/28		490,103		563,312,305
2.00%, 01/15/26		214,309		242,101,763
2.13%, 02/15/40		61,843		85,218,840
2.38%, 01/15/25		9,787		11,036,037
2.38%, 01/15/27		122,036		143,549,593
2.50%, 01/15/29		387,545		478,481,308
3.63%, 04/15/28		336,358		439,005,722
3.88%, 04/15/29		446,985		610,166,926

				21,141,434,697


Total U.S. Government Obligations — 99.3% (Cost: $20,309,269,847)				21,141,434,697


Short-Term Investments

Money Market Funds — 4.3%
BlackRock Cash Funds: Treasury, SL Agency Shares, 1.50%^(a)(b)(c)		909,372		909,372,000


Total Short-Term Investments — 4.3% (Cost: $909,372,000)				909,372,000


Total Investments in Securities — 103.6% (Cost: $21,218,641,847)				22,050,806,697

Other Assets, Less Liabilities — (3.6)%				(764,737,049	)


Net Assets — 100.0%			$	21,286,069,648

^(a)	Affiliate of the Fund.

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

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

Investments in issuers considered to be affiliates of the Fund during the three months ended January 31, 2020, for purposes of Section 2(a)(3) of the Investment Company Act of 1940, as amended, were as follows:

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 January 31, 2020. The breakdown of the Fund’s investments into major categories is disclosed in the Schedule of Investments above.


Affiliated Issuer	Shares Held at 10/31/19 (000)	Net Activity (000)	Shares Held at 01/31/20 (000)		Value at 01/31/20		Income			Net Realized Gain (Loss)	^(a)		Change in Unrealized Appreciation (Depreciation)
BlackRock Cash Funds: Treasury, SL Agency Shares	29,669	879,703	909,372	$	909,372,000	$	935,606	^(b)	$	—		$	—


	Level 1		Level 2		Level 3		Total
Investments
Assets
U.S. Government Obligations	$	—	$	21,141,434,697	$	—	$	21,141,434,697
Money Market Funds		909,372,000		—		—		909,372,000

	$	909,372,000	$	21,141,434,697	$	—	$	22,050,806,697