10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2021

or

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from           to          

Commission File Number: 001-32947

iShares® S&P GSCI™ Commodity-Indexed Trust

(Exact name of registrant as specified in its charter)

Delaware  51-6573369

(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)

c/o iShares Delaware Trust Sponsor LLC

400 Howard Street

San Francisco, California 94105

Attn: Product Management Team

iShares Product Research & Development

(Address of principal executive offices) (Zip Code)

(415) 670-2000

(Registrant’s telephone number, including area code)

N/A

(Former name, former address and former fiscal year, if changed since last report)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Shares	GSG	NYSE Arca, Inc.

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒  No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☒  No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer   ☐	Accelerated filer   ☒
Non-accelerated filer   ☐	Smaller reporting company   ☐	Emerging growth company   ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐  No ☒

As of October 29, 2021, the Registrant had 79,950,000 Shares outstanding.

Table of Contents

		Page
PART I – FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited)	1
	Statements of Assets and Liabilities at September 30, 2021 and December 31, 2020	1
	Statements of Operations for the three and nine months ended September 30, 2021 and 2020	2
	Statements of Changes in Net Assets for the three, six and nine months ended September 30, 2021 and 2020	3
	Statements of Cash Flows for the nine months ended September 30, 2021 and 2020	5
	Schedules of Investments at September 30, 2021 and December 31, 2020	6
	Notes to Financial Statements	8
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	13
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	15
Item 4.	Controls and Procedures	15
PART II – OTHER INFORMATION		16
Item 1.	Legal Proceedings	16
Item 1A.	Risk Factors	16
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	16
Item 3.	Defaults Upon Senior Securities	16
Item 4.	Mine Safety Disclosures	16
Item 5.	Other Information	16
Item 6.	Exhibits	17
SIGNATURES		18

PART I – FINANCIAL INFORMATION

Item 1. Financial Statements

iShares S&P GSCI™ Commodity-Indexed Trust

Statements of Assets and Liabilities (Unaudited)

At September 30, 2021 and December 31, 2020

	September 30,		December 31,
	2021		2020
Assets
Cash	$	13,627,637	$	20,622,531
Short-term investments, at fair value(a)		1,249,725,359		772,677,694
Short-term investments held at the broker (restricted), at fair value(b)		48,196,963		42,290,413
Receivable for variation margin on open futures contracts (Note 9)		6,183,136		3,335,487
Total Assets		1,317,733,095		838,926,125
Liabilities
Sponsor’s fees payable		793,500		507,208
Payable for capital shares redeemed		—		11,072,297
Total Liabilities		793,500		11,579,505
Commitments and contingent liabilities (Note 7)		—		—
Net Assets	$	1,316,939,595	$	827,346,620
Shares issued and outstanding(c)		78,100,000		67,250,000
Net asset value per Share (Note 2G)	$	16.86	$	12.30

(a) Cost of short-term investments: $1,249,728,095 and $772,661,613, respectively.

(b) Cost of short-term investments held at the broker (restricted): $48,196,302 and $42,287,936, respectively.

(c) No par value, unlimited amount authorized.

See notes to financial statements.

1

iShares S&P GSCI™ Commodity-Indexed Trust

Statements of Operations (Unaudited)

For the three and nine months ended September 30, 2021 and 2020  

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Investment Income
Interest	$	94,407		$	204,222		$	290,406		$	3,580,469
Total investment income		94,407			204,222			290,406			3,580,469
Expenses
Sponsor’s fees		2,482,274			1,309,010			6,783,239			3,609,289
Brokerage commissions and fees		322,517			274,439			1,000,308			741,568
Total expenses		2,804,791			1,583,449			7,783,547			4,350,857
Net Investment loss		(2,710,384	)		(1,379,227	)		(7,493,141	)		(770,388	)
Net Realized and Unrealized Gain (Loss)
Net realized gain (loss) from:
Short-term investments		(1,506	)		16			(880	)		61,120
Futures contracts		10,796,107			31,519,147			333,696,632			(275,413,702	)
Net realized gain (loss)		10,794,601			31,519,163			333,695,752			(275,352,582	)
Net change in unrealized appreciation/depreciation on:
Short-term investments		51,000			(11,385	)		(20,633	)		(96,979	)
Futures contracts		51,987,409			(3,320,408	)		26,530,264			(7,363,713	)
Net change in unrealized appreciation/depreciation		52,038,409			(3,331,793	)		26,509,631			(7,460,692	)
Net realized and unrealized gain (loss)		62,833,010			28,187,370			360,205,383			(282,813,274	)
Net increase (decrease) in net assets resulting from operations	$	60,122,626		$	26,808,143		$	352,712,242			(283,583,662	)
Net increase (decrease) in net assets per Share(a)	$	0.73		$	0.42		$	4.37		$	(4.95	)

(a) Net increase (decrease) in net assets per Share based on average shares outstanding during the period.

See notes to financial statements.

2

iShares S&P GSCI™ Commodity-Indexed Trust

Statements of Changes in Net Assets (Unaudited)

For the three, six and nine months ended September 30, 2021

	Nine Months Ended September 30, 2021
Net Assets at December 31, 2020	$	827,346,620
Operations:
Net investment loss		(2,080,345	)
Net realized gain		202,940,932
Net change in unrealized appreciation/depreciation		(87,561,537	)
Net increase in net assets resulting from operations		113,299,050
Capital Share Transactions:
Contributions for Shares issued		217,200,755
Distributions for Shares redeemed		(43,811,299	)
Net increase in net assets from capital share transactions		173,389,456
Increase in net assets		286,688,506
Net Assets at March 31, 2021	$	1,114,035,126
Operations:
Net investment loss		(2,702,412	)
Net realized gain		119,960,219
Net change in unrealized appreciation/depreciation		62,032,759
Net increase in net assets resulting from operations		179,290,566
Capital Share Transactions:
Contributions for Shares issued		160,863,723
Distributions for Shares redeemed		(94,739,019	)
Net increase in net assets from capital share transactions		66,124,704
Increase in net assets		245,415,270
Net Assets at June 30, 2021	$	1,359,450,396
Operations:
Net investment loss		(2,710,384	)
Net realized gain		10,794,601
Net change in unrealized appreciation/depreciation		52,038,409
Net increase in net assets resulting from operations		60,122,626
Capital Share Transactions:
Contributions for Shares issued		22,714,206
Distributions for Shares redeemed		(125,347,633	)
Net decrease in net assets from capital share transactions		(102,633,427	)
Decrease in net assets		(42,510,801	)
Net Assets at September 30, 2021	$	1,316,939,595
Shares issued and redeemed
Shares issued		27,900,000
Shares redeemed		(17,050,000	)
Net increase in Shares issued and outstanding		10,850,000

See notes to financial statements.

3

iShares S&P GSCI™ Commodity-Indexed Trust

Statements of Changes in Net Assets (Unaudited)

For the three, six and nine months ended September 30, 2020

	Nine Months Ended September 30, 2020
Net Assets at December 31, 2019	$	775,343,105
Operations:
Net investment income		1,028,255
Net realized loss		(224,167,336	)
Net change in unrealized appreciation/depreciation		(144,962,309	)
Net decrease in net assets resulting from operations		(368,101,390	)
Capital Share Transactions:
Contributions for Shares issued		134,854,545
Distributions for Shares redeemed		(40,549,504	)
Net increase in net assets from capital share transactions		94,305,041
Decrease in net assets		(273,796,349	)
Net Assets at March 31, 2020	$	501,546,756
Operations:
Net investment loss		(419,416	)
Net realized loss		(82,704,409	)
Net change in unrealized appreciation/depreciation		140,833,410
Net increase in net assets resulting from operations		57,709,585
Capital Share Transactions:
Contributions for Shares issued		69,679,590
Distributions for Shares redeemed		(19,691,724	)
Net increase in net assets from capital share transactions		49,987,866
Increase in net assets		107,697,451
Net Assets at June 30, 2020	$	609,244,207
Operations:
Net investment loss		(1,379,227	)
Net realized gain		31,519,163
Net change in unrealized appreciation/depreciation		(3,331,793	)
Net increase in net assets resulting from operations		26,808,143
Capital Share Transactions:
Contributions for Shares issued		113,149,993
Distributions for Shares redeemed		(31,118,609	)
Net increase in net assets from capital share transactions		82,031,384
Increase in net assets		108,839,527
Net Assets at September 30, 2020	$	718,083,734
Shares issued		27,650,000
Shares redeemed		(8,750,000	)
Net increase in Shares issued and outstanding		18,900,000

See notes to financial statements.

4

iShares S&P GSCI™ Commodity-Indexed Trust

Statements of Cash Flows (Unaudited)

For the nine months ended September 30, 2021 and 2020

	Nine Months Ended September 30,
	2021			2020
Cash Flows from Operating Activities
Net increase (decrease) in net assets resulting from operations	$	352,712,242		$	(283,583,662	)
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:
Purchases of short-term investments		(6,773,376,889	)		(3,024,026,140	)
Sales/maturities of short-term investments		6,290,691,567			3,081,735,489
Accretion of discount		(290,406	)		(3,578,269	)
Net realized (gain) loss on short-term investments		880			(61,120	)
Net change in unrealized appreciation/depreciation on short-term investments		20,633			96,979
Change in operating assets and liabilities:
Receivable for variation margin on open futures contracts		(2,847,649	)		(10,882,146	)
Payable for variation margin on open futures contracts		(11,072,297	)		(5,952,581	)
Sponsor’s fees payable		286,292			(27,110	)
Net cash provided by (used in) operating activities		(143,875,627	)		(246,278,560	)
Cash Flows from Financing Activities
Contributions for Shares issued		400,778,684			317,684,128
Distributions for Shares redeemed		(263,897,951	)		(90,282,444	)
Net cash provided by (used in) financing activities		136,880,733			227,401,684
Net decrease in cash		(6,994,894	)		(18,876,876	)
Cash
Beginning of period
Unrestricted – cash		20,622,531			31,242,158
End of period
Unrestricted – cash	$	13,627,637		$	12,365,282

See notes to financial statements.

5

iShares S&P GSCI™ Commodity-Indexed Trust

Schedules of Investments (Unaudited)

At September 30, 2021 and December 31, 2020

September 30, 2021

Security Description	Face Amount		Fair Value
U.S. Treasury bills(a)(b):
0.01% – 0.04% due 10/05/21	$	153,000,000	$	152,999,615
0.03% – 0.04% due 10/07/21		85,000,000		84,999,469
0.04% due 11/02/21		49,000,000		48,997,454
0.05% due 11/04/21		12,000,000		11,999,150
0.04% due 11/09/21		45,000,000		44,997,258
0.03% due 11/16/21		22,000,000		21,998,805
0.03% due 11/26/21		48,000,000		47,997,200
0.01% – 0.04% due 12/02/21		119,000,000		118,992,450
0.04% due 12/07/21		83,000,000		82,995,521
0.03% – 0.04% due 12/09/21		113,000,000		112,993,862
0.04% due 12/14/21		20,000,000		19,998,643
0.03% – 0.04% due 12/16/21		128,000,000		127,990,272
0.02% – 0.04% due 12/21/21		135,000,000		134,991,495
0.03% due 12/23/21		16,000,000		15,998,647
0.03% due 12/28/21		40,000,000		39,996,089
0.04% due 12/30/21		65,000,000		64,993,500
0.03% due 01/04/22		60,000,000		59,995,250
0.03% due 01/06/22		47,000,000		46,995,572
0.03% due 01/11/22		8,000,000		7,999,320
0.04% due 01/25/22		50,000,000		49,992,750
Total U.S. Treasury bills (Cost: $1,297,924,397)				1,297,922,322
Total Investments – 98.56%				1,297,922,322
Other Assets, Less Liabilities – 1.44%				19,017,273
Net Assets – 100.00%			$	1,316,939,595

(a) A portion of the above U.S. Treasury bills are posted as margin for the Trust’s Index Futures positions as described in Note 2D.

(b) Rates shown are discount rates paid at the time of purchase.

As of September 30, 2021, the open S&P GSCI-ER futures contracts were as follows:

Number of Contracts	Expiration Date	Current Notional Amount		Net Unrealized Appreciation (Depreciation)
52,757	December 15, 2021	$	1,316,397,940	$	68,982,834

6

 

December 31, 2020

Security Description	Face Amount		Fair Value
U.S. Treasury bills(a)(b):
0.05% – 0.08% due 1/05/21	$	53,000,000	$	52,999,993
0.06% – 0.10% due 1/07/21		112,000,000		111,999,720
0.07% – 0.08% due 1/12/21		30,000,000		29,999,734
0.07% – 0.10% due 1/14/21		155,000,000		154,998,062
0.07% due 1/19/21		40,000,000		39,999,333
0.07% – 0.11% due 1/21/21		60,000,000		59,998,725
0.08% – 0.09% due 1/28/21		50,000,000		49,998,084
0.07% – 0.09% due 2/04/21		26,000,000		25,998,769
0.06% – 0.07% due 2/09/21		73,000,000		72,996,715
0.11% due 2/11/21		75,000,000		74,995,250
0.07% – 0.11% due 2/18/21		60,000,000		59,995,125
0.09% due 2/25/21		16,000,000		15,998,440
0.10% due 3/04/21		10,000,000		9,998,853
0.07% due 3/11/21		29,000,000		28,996,012
0.08% due 3/23/21		19,000,000		18,996,912
0.06% due 4/15/21		7,000,000		6,998,380
Total U.S. Treasury bills (Cost: $814,949,549)				814,968,107
Total Investments – 98.50%				814,968,107
Other Assets, Less Liabilities – 1.50%				12,378,513
Net Assets – 100.00%			$	827,346,620

(a) A portion of the above U.S. Treasury bills are posted as margin for the Trust’s Index Futures positions as described in Note 2D.

(b) Rates shown are discount rates paid at the time of purchase.

As of December 31, 2020, the open S&P GSCI-ER futures contracts were as follows:

Number of Contracts	Expiration Date	Current Notional Amount		Net Unrealized Appreciation (Depreciation)
45,779	March 15, 2021	$	827,249,420	$	42,452,572

See notes to financial statements.

7

 

iShares S&P GSCI™ Commodity-Indexed Trust

Notes to Financial Statements (Unaudited)

September 30, 2021

1 - Organization

The iShares S&P GSCI™ Commodity-Indexed Trust (the “Trust”) is a Delaware statutory trust that was organized under the laws of the State of Delaware on July 7, 2006 and commenced operations on July 10, 2006. iShares Delaware Trust Sponsor LLC, a Delaware limited liability company, is the sponsor of the Trust (the “Sponsor”). The sole member and manager of the Sponsor is BlackRock Asset Management International Inc., a Delaware corporation.

BlackRock Institutional Trust Company, N.A. is the trustee of the Trust (the “Trustee”). The Trust is governed by the Third Amended and Restated Trust Agreement, dated as of December 31, 2013 (the “Trust Agreement”), among the Sponsor, the Trustee and Wilmington Trust Company (the “Delaware Trustee”). The Trust issues units of beneficial interest (“Shares”) representing fractional undivided beneficial interests in its net assets.

The Trust holds long positions in exchange-traded index futures contracts of various expirations (“Index Futures”) on the S&P GSCI™ Excess Return Index (“S&P GSCI‑ER”). In order to collateralize its Index Futures positions and to reflect the U.S. Treasury component of the S&P GSCI™ Total Return Index (the “Index”), the Trust also holds “Collateral Assets,” which consist of cash, U.S. Treasury securities or other short-term securities and similar securities that are eligible as margin deposits for those Index Futures positions. The Index Futures held by the Trust are listed on the Chicago Mercantile Exchange (the “CME”).

The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodity futures. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities.

The Trust is a commodity pool, as defined in the Commodity Exchange Act (the “CEA”) and the applicable regulations of the Commodity Futures Trading Commission (the “CFTC”), and is operated by the Sponsor, a commodity pool operator registered with the CFTC. The Sponsor is an indirect subsidiary of BlackRock, Inc. (“BlackRock”). BlackRock Fund Advisors (the “Advisor”), an indirect subsidiary of BlackRock, serves as the commodity trading advisor of the Trust and is registered with the CFTC.

The accompanying unaudited financial statements were prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions for Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). In the opinion of management, all material adjustments, consisting only of normal recurring adjustments considered necessary for a fair statement of the interim period financial statements, have been made. Interim period results are not necessarily indicative of results for a full-year period. These financial statements and the notes thereto should be read in conjunction with the Trust’s financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2020, as filed with the SEC on March 1, 2021.

The Trust qualifies as an investment company solely for accounting purposes and follows the accounting and reporting guidance under the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 946, Financial Services – Investment Companies, but is not registered, and is not required to be registered, as an investment company under the Investment Company Act of 1940, as amended.

2 - Significant Accounting Policies

A. Basis of Accounting

The following significant accounting policies are consistently followed by the Trust in the preparation of its financial statements in conformity with U.S. GAAP. The preparation of financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.

Certain statements and captions in the financial statements for the prior periods have been changed to conform to the current financial statement presentation.

B. Investment in Index Futures

The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodity futures, including energy commodities, precious and industrial metal commodities, agricultural commodities and livestock commodities. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities.

The assets of the Trust consist of Index Futures and cash or other Collateral Assets used to satisfy applicable margin requirements for those Index Futures positions. Index Futures are exchange-traded index futures contracts on the S&P GSCI-ER, and are expected to include contracts of different terms and expirations. The Trust is expected to roll out of existing positions in Index Futures and establish new positions in Index Futures on an ongoing basis. When establishing positions in Index Futures, the Trust is required to deposit cash or other Collateral Assets with the broker as “initial margin.” On a daily basis, the Trust is obligated to pay, or entitled to receive, cash in an amount equal to the change in the daily settlement level of its Index Futures positions. Such payments or receipts are known as variation margin. Variation margin is recorded as unrealized appreciation (depreciation) and, if any, shown as variation margin receivable (or payable) on futures contracts in the statements of assets and liabilities. When an Index Futures contract is closed, the Trust records a realized gain or loss based on the difference between the value of the Index Futures contract at the time it was opened and the value at the time it was closed.

Index Futures are derivative instruments valued at fair value, which the Trustee has determined to be that day’s announced settlement price on the CME or any such other futures exchange listing Index Futures (the “Exchange”). If there is no announced settlement price for a particular Index Futures contract on that day, the Trustee will use the most recently announced settlement price unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation. The Trust’s derivatives are not designated as hedges, and all changes in the fair value are reflected in the statements of operations.

8

 

For futures contracts, counterparty credit risk is mitigated because futures contracts are exchange-traded and the exchange’s clearing house acts as central counterparty to all exchange-traded futures contracts (although customers continue to have credit exposure to the clearing member who holds their account).

Please refer to Note 9 for additional disclosures regarding the Trust’s investments in futures contracts.

C. Cash

The Trust considers cash as currencies deposited in one or more bank account. Cash is presented on the statements of cash flows as unrestricted cash.

D. Short-Term Investments

Short-term investments on the statements of assets and liabilities consist principally of short-term fixed income securities with original maturities of one year or less. These investments are valued at fair value.

As of September 30, 2021 and December 31, 2020, the Trust had restricted short-term investments held at the broker of $48,196,963 and $42,290,413, respectively, which were posted as margin for the Trust’s Index Futures positions.

E. Securities Transactions and Income Recognition

Securities transactions are accounted for on the trade date. Realized gains and losses on investment transactions are determined using the specific identification method. Interest income, including amortization and accretion of premiums and discounts on debt securities, is recognized daily on an accrual basis.

F. Income Taxes

The Trust is treated as a partnership for federal, state and local income tax purposes.

No provision for federal, state, and local income taxes has been made in the accompanying financial statements because the Trust is not subject to income taxes. Shareholders are individually responsible for their own tax payments on their proportionate share of income, gain, loss, deduction, expense and credit.

The Sponsor has analyzed the tax positions as of September 30, 2021, inclusive of the open tax return years, and does not believe that there are any uncertain tax positions that require recognition of a tax liability.

G. Calculation of Net Asset Value

The net asset value of the Trust on any given day is obtained by subtracting the Trust’s accrued expenses and other liabilities on that day from the value of (1) the Trust’s Index Futures positions and Collateral Assets on that day, (2) the interest earned on those assets by the Trust and (3) any other assets of the Trust, as of 4:00 p.m. (New York time) that day. The Trustee determines the net asset value per Share (the “NAV”) by dividing the net asset value of the Trust on a given day by the number of Shares outstanding at the time the calculation is made. The NAV is calculated each business day on which NYSE Arca, Inc. (“NYSE Arca”) is open for regular trading, as soon as practicable after 4:00 p.m. (New York time).

H. Distributions

Interest and distributions received by the Trust on its assets may be used to acquire additional Index Futures and Collateral Assets or, in the discretion of the Sponsor, distributed to shareholders. The Trust is under no obligation to make periodic distributions to shareholders.

3 - Offering of the Shares

Shares are issued and redeemed continuously in one or more blocks of 50,000 Shares (the “Baskets”) in exchange for Index Futures and cash (or, in the discretion of the Sponsor, other Collateral Assets in lieu of cash). Only registered broker-dealers who have entered into an authorized participant agreement with the Trust (each, an “Authorized Participant”) may purchase or redeem Baskets. Individual investors that are not Authorized Participants cannot purchase or redeem Shares in direct transactions with the Trust. Authorized Participants may redeem their Shares (as well as Shares on behalf of other investors) at any time before 2:40 p.m. (New York time) on any business day in one or more Baskets. Redemptions of Shares in exchange for baskets of Index Futures and cash (or, in the discretion of the Sponsor, other Collateral Assets in lieu of cash) are treated as sales for financial statement purposes.

It is possible that, from time to time, BlackRock and/or funds or other accounts managed by the Trustee or an affiliate (collectively, “Affiliates”) may purchase and hold Shares of the Trust. Affiliates reserve the right, subject to compliance with applicable law, to sell into the market or redeem in Baskets through an Authorized Participant at any time some or all of the Shares of the Trust acquired for their own accounts. A large sale or redemption of Shares of the Trust by Affiliates could significantly reduce the asset size of the Trust, which might have an adverse effect on the Trust and the Shares that remain outstanding.

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4 - Trust Expenses

The Trust is responsible for paying any applicable brokerage commissions and similar transaction fees out of its assets in connection with the roll of Index Futures held by the Trust. These expenses are recorded as brokerage commissions and fees in the statements of operations as incurred.

The Sponsor pays the amounts that would otherwise be considered the ordinary operating expenses, if any, of the Trust. In return, the Sponsor receives a fee from the Trust that accrues daily and is paid monthly in arrears at an annualized rate equal to 0.75% of the net asset value of the Trust, as calculated before deducting fees and expenses based on the value of the Trust’s assets.

The Sponsor has agreed under the Trust Agreement to pay the following administrative, operational and marketing expenses: (1) the fees of the Trustee, the Delaware Trustee, the Advisor, the Trust Administrator, the processing agent and their respective agents, (2) NYSE Arca listing fees, (3) printing and mailing costs, (4) audit fees, (5) fees for registration of the Shares with the SEC, (6) tax reporting costs, (7) license fees and (8) legal expenses relating to the Trust of up to $100,000 annually.

5 - Related Parties

The Sponsor, the Trustee and the Advisor are considered to be related parties to the Trust. The Trustee’s and Advisor’s fees are paid by the Sponsor and are not a separate expense of the Trust.

6 - Indemnification

The Trust Agreement provides that the Trustee shall indemnify the Sponsor, its directors, employees, delegees and agents against, and hold each of them harmless from, any loss, liability, claim, cost, expense or judgment of any kind whatsoever (including reasonable fees and expenses of counsel) (i) caused by the negligence or bad faith of the Trustee or (ii) arising out of any information furnished in writing to the Sponsor by the Trustee expressly for use in the registration statement, or any amendment thereto or periodic report, filed with the SEC relating to the Shares that is not materially altered by the Sponsor.

The Trust Agreement provides that the Sponsor and its shareholders, directors, officers, employees, affiliates (as such term is defined under the Securities Act of 1933, as amended) and subsidiaries and agents shall be indemnified from the Trust and held harmless against any loss, liability, claim, cost, expense or judgment of any kind whatsoever (including the reasonable fees and expenses of counsel) arising out of or in connection with the performance of their obligations under the Trust Agreement or any actions taken in accordance with the provisions of the Trust Agreement and incurred without their (1) negligence, bad faith or willful misconduct or (2) reckless disregard of their obligations and duties under the Trust Agreement.

The investment advisory agreement (the “Advisory Agreement”) between the Trust and the Advisor provides that the Advisor and its shareholders, directors, officers, employees, affiliates (as such term is defined under the Securities Act of 1933, as amended) and subsidiaries shall be indemnified from the Trust and held harmless against any loss, liability, cost, expense or judgment (including the reasonable fees and expenses of counsel) arising out of or in connection with the performance of their obligations under the Advisory Agreement or any actions taken in accordance with the provisions of the Advisory Agreement and incurred without their (1) negligence, bad faith or willful misconduct or (2) reckless disregard of their obligations and duties under the Advisory Agreement.

7 - Commitments and Contingent Liabilities

In the normal course of business, the Trust may enter into contracts with service providers that contain general indemnification clauses. The Trust’s maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Trust that have not yet occurred.

8 - Financial Highlights

The following financial highlights relate to investment performance and operations for a Share outstanding for the three and nine months ended September 30, 2021 and 2020.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Net asset value per Share, beginning of period	$	16.08		$	10.33		$	12.30		$	16.24
Net investment income (loss)(a)		(0.03	)		(0.02	)		(0.09	)		(0.01	)
Net realized and unrealized gain (loss)(b)		0.81			0.46			4.65			(5.46	)
Net increase (decrease) in net assets from operations		0.78			0.44			4.56			(5.47	)
Net asset value per Share, end of period	$	16.86		$	10.77		$	16.86		$	10.77
Total return, at net asset value(c)(d)		4.85	%		4.26	%		37.07	%		(33.68	)%
Ratio to average net assets:
Net investment income (loss)(e)		(0.82	)%		(0.79	)%		(0.83	)%		(0.16	)%
Expenses(e)		0.85	%		0.91	%		0.86	%		0.90	%

(a) Based on average Shares outstanding during the period.

(b) The amounts reported for a Share outstanding may not accord with the change in aggregate gains and losses on investments for each period due to the timing of Trust Share transactions in relation to the fluctuating fair values of the Trust’s underlying investments.

(c) Based on the change in net asset value of a Share during the period.

(d) Percentage is not annualized.

(e) Percentage is annualized.

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9 - Investing in Index Futures

Substantially all of the Trust’s assets are invested in Index Futures. The Index Futures’ settlement value at expiration is based on the value of the S&P GSCI‑ER at that time. Therefore, the value of the Trust will fluctuate based upon the value of the S&P GSCI-ER and the prices of futures contracts and commodities underlying the S&P GSCI-ER. The commodities markets have historically been extremely volatile. For the nine months ended September 30, 2021 and the year ended December 31, 2020, the average month-end notional amounts of open Index Futures were $1,191,513,696 and $668,432,601, respectively.

The following table shows the variation margin on open futures contracts, by risk exposure category, on the statements of assets and liabilities as of September 30, 2021 and December 31, 2020:

	Asset Derivatives	Fair Value		Liability Derivatives	Fair Value
September 30, 2021
Commodity contracts	Receivable for variation margin on open futures contracts	$	6,183,136	Payable for variation margin on open futures contracts	$	—
December 31, 2020
Commodity contracts	Receivable for variation margin on open futures contracts	$	3,335,487	Payable for variation margin on open futures contracts	$	—

The following table shows the effect of the open futures contracts, by risk exposure category, on the statements of operations for the three and nine months ended September 30, 2021 and 2020:

	Statements of Operations Location	Net Realized Gain (Loss)			Net Change in Unrealized Appreciation/Depreciation
Three Months Ended September 30, 2021
Commodity contracts	Net realized gain (loss) from futures contracts	$	10,796,107		$	—
	Net change in unrealized appreciation/depreciation on futures contracts		—			51,987,409
Three Months Ended September 30, 2020
Commodity contracts	Net realized gain (loss) from futures contracts	$	31,519,147		$	—
	Net change in unrealized appreciation/depreciation on futures contracts		—			(3,320,408	)
Nine Months Ended September 30, 2021
Commodity contracts	Net realized gain (loss) from futures contracts	$	333,696,632		$	—
	Net change in unrealized appreciation/depreciation on futures contracts	$	—		$	26,530,264
Nine Months Ended September 30, 2020
Commodity contracts	Net realized gain (loss) from futures contracts	$	(275,413,702	)	$	—
	Net change in unrealized appreciation/depreciation on futures contracts	$	—		$	(7,363,713	)

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10 - Investment Valuation

FASB Accounting Standards Codification Topic 820, Fair Value Measurements and Disclosures, defines fair value as the price the Trust would receive to sell an asset or pay to transfer a liability in an orderly transaction between market participants at the measurement date. The Trust’s policy is to value its investments at fair value.

Investments in Index Futures are measured at fair value on the basis of that day’s settlement price for Index Futures as announced by the applicable Exchange. If there is no announced settlement price for a particular Index Futures contract on a Business Day, the Trustee uses the most recently announced settlement price unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation.

U.S. Treasury bills are valued at the last available bid price received from independent pricing services. In determining the value of a fixed income investment, pricing services may use certain information with respect to transactions in such investments, quotations from dealers, pricing matrixes, market transactions in comparable investments, various relationships observed in the market between investments and calculated yield measures.

Various inputs are used in determining the fair value of financial instruments. Inputs may be based on independent market data (“observable inputs”) or they may be internally developed (“unobservable inputs”). These inputs are categorized into a disclosure hierarchy consisting of three broad levels for financial reporting purposes. The level of a value determined for a financial instrument within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement in its entirety. The three levels of the fair value hierarchy are as follows:

Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities;

Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability either directly or indirectly, including quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not considered to be active, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means; and

Level 3 – Unobservable inputs that are unobservable for the asset or liability, including the Trust’s assumptions used in determining the fair value of investments.

Fair value pricing could result in a difference between the prices used to calculate the Trust’s net asset value and the prices used by the Trust’s underlying index, which in turn could result in a difference between the Trust’s performance and the performance of the Trust’s underlying index.

The following table summarizes the value of each of the Trust’s investments by the fair value hierarchy levels as of September 30, 2021 and December 31, 2020:

	Level 1		Level 2		Level 3		Total
September 30, 2021
Futures contracts(a)	$	68,982,834	$	—	$	—	$	68,982,834
U.S. Treasury bills		—		1,297,922,322		—		1,297,922,322
December 31, 2020
Futures contracts(a)	$	42,452,572	$	—	$	—	$	42,452,572
U.S. Treasury bills		—		814,968,107		—		814,968,107

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

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

This information should be read in conjunction with the financial statements and notes to financial statements included in Item 1 of Part I of this Form 10‑Q. The discussion and analysis that follows may contain statements that relate to future events or future performance. In some cases, such forward‑looking statements can be identified by terminology such as “may,” “should,” “could,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “potential” or the negative of these terms or other comparable terminology. These statements are only predictions. Actual events or results may differ materially. These statements are based upon certain assumptions and analyses made by the Sponsor on the basis of its perception of historical trends, current conditions and expected future developments, as well as other factors it believes are appropriate in the circumstances. Whether or not actual results and developments will conform to the Sponsor’s expectations and predictions, however, is subject to a number of risks and uncertainties, including the special considerations discussed below, general economic, market and business conditions, changes in laws or regulations, including those concerning taxes, made by governmental authorities or regulatory bodies, and other world economic and political developments. Although the Sponsor does not make forward looking statements unless it believes it has a reasonable basis for doing so, the Sponsor cannot guarantee their accuracy. Except as required by applicable disclosure laws, none of the Trust, the Sponsor, the Advisor, the Trustee or the Delaware Trustee is under a duty to update any of the forward‑looking statements to conform such statements to actual results or to a change in expectations or predictions.

Introduction

The iShares S&P GSCI™ Commodity-Indexed Trust (the “Trust”) is a Delaware statutory trust that issues units of beneficial interest (“Shares”) representing fractional undivided beneficial interests in its net assets. The Trust holds long positions in exchange-traded index futures contracts of various expirations, (“Index Futures”) on the S&P GSCI™ Excess Return Index (the “S&P GSCI-ER”), together with cash, U.S. Treasury securities or other short-term securities and similar securities that are eligible as margin deposits for the Trust’s Index Futures positions, referred to as “Collateral Assets.” The Index Futures held by the Trust are listed on the Chicago Mercantile Exchange (the “CME”). The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodities futures. The Trust seeks to track the investment returns of the S&P GSCI™ Total Return Index (the “Index”) before payment of the Trust’s expenses and liabilities.

iShares Delaware Trust Sponsor LLC, a Delaware limited liability company, is the sponsor of the Trust (the “Sponsor”). BlackRock Institutional Trust Company, N.A. is the “Trustee” of the Trust. The Trust is a commodity pool, as defined in the Commodity Exchange Act (the “CEA”) and the applicable regulations of the Commodity Futures Trading Commission (the “CFTC”), and is operated by the Sponsor, a commodity pool operator registered with the CFTC. BlackRock Fund Advisors (the “Advisor”), an indirect subsidiary of BlackRock, Inc., serves as the commodity trading advisor of the Trust and is registered with the CFTC. The Trust is not an investment company registered under the Investment Company Act of 1940, as amended. The Trust has delegated day-to-day administration of the Trust to the Trustee. The Trustee has delegated certain day-to-day administrative functions of the Trustee to State Street Bank and Trust Company (the “Trust Administrator”). Wilmington Trust Company, a Delaware trust company, serves as the “Delaware Trustee” of the Trust.

The Trust intends to offer Shares on a continuous basis. The Trust issues and redeems Shares only in one or more blocks of 50,000 Shares (“Baskets”). Only institutions that enter into an agreement with the Trust to become “Authorized Participants” may purchase or redeem Baskets, in exchange for Index Futures and Collateral Assets with an aggregate value equal to the net asset value per Share, or “NAV” of the Shares being purchased or redeemed.

Owners of beneficial interests in Shares (“Shareholders”) who are not Authorized Participants have no right to redeem their Shares. In order to liquidate their investment in the Shares, Shareholders who are not Authorized Participants must generally sell their Shares in the secondary market, assuming that demand for their Shares exists. The price obtained by the Shareholders for the Shares may be less than the NAV of those Shares.

Shares of the Trust trade on NYSE Arca, Inc. (“NYSE Arca”) under the ticker symbol GSG.

Valuation of Index Futures; Computation of the Trust’s Net Asset Value

The Sponsor has the exclusive authority to determine the net asset value of the Trust and the NAV, which it has delegated to the Trustee under the Trust Agreement. The Trustee determines the net asset value of the Trust and the NAV as of 4:00 p.m. (New York time), on each Business Day on which NYSE Arca is open for regular trading, as soon as practicable after that time. A “Business Day” is a day (1) on which none of the following occurs: (a) NYSE Arca is closed for regular trading, (b) the Exchange is closed for regular trading or (c) the Federal Reserve wire transfer system is closed for cash wire transfers, or (2) that the Trustee determines that it is able to conduct business.

The Trustee values the Trust’s long positions in Index Futures on the basis of that day’s settlement prices for the Index Futures held by the Trust as announced by the applicable Exchange. The value of the Trust’s positions in any particular Index Futures contract equals the product of (1) the number of such Index Futures contracts owned by the Trust, (2) the settlement price of such Index Futures contract on the date of calculation and (3) the multiplier of such Index Futures contract. If there is no announced settlement price for a particular Index Futures contract on a Business Day, the Trustee uses the most recently announced settlement price unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation. The daily settlement price for each Index Futures contract currently held by the Trust is established on each trading day, generally at 2:40 p.m. (New York time), by the CME Group Inc., and its designed contract markets, including the CME, CBOT (Board of Trade of the City of Chicago, Inc.), NYMEX (New York Mercantile Exchange), COMEX and KCBT (the “CME Group”) staff.

The Trustee values all other holdings of the Trust at (1) its current market value, if quotations for such property are readily available or (2) its fair value, as reasonably determined by the Trustee, if the current market value cannot be determined.

Once the value of the Index Futures, Collateral Assets of the Trust and interest earned on the Trust’s Collateral Assets has been determined, the Trustee subtracts all accrued expenses and liabilities of the Trust as of the time of calculation in order to calculate the net asset value of the Trust.

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Once the net asset value of the Trust has been calculated, the Trustee determines the NAV by dividing the net asset value of the Trust by the number of Shares outstanding at the time the calculation is made. Any changes to the NAV that may result from creation and redemption activity are not reflected in the NAV calculations for purposes of the Trust’s operations until the Business Day following the Business Day on which they occur, but are reflected in the Trust’s financial statements as of such first Business Day. Creation and redemption orders received after 2:40 p.m. (New York time) are not deemed to be received, and the related creation or redemption will not be deemed to occur, until the following Business Day. Subject to the approval of the Trustee, Baskets may be created solely for cash, but the related creation orders will be deemed received as of the following Business Day unless received by 10:00 a.m. (New York time). Orders are expected to settle by 11:00 a.m. (New York time) on the Business Day following the Business Day on which such orders are deemed to be received.

Results of Operations

The Quarter Ended September 30, 2021

The Trust’s net asset value decreased from $1,359,450,396 at June 30, 2021 to $1,316,939,595 at September 30, 2021. The decrease in the Trust’s net asset value resulted primarily from a net decrease in the number of outstanding Shares, which fell from 84,550,000 Shares at June 30, 2021 to 78,100,000 Shares at September 30, 2021, a consequence of 1,400,000 Shares (28 Baskets) being created and 7,850,000 Shares (157 Baskets) being redeemed during the quarter. This decrease was offset by a net increase in net assets resulting from operations.

The 4.85% increase in the NAV from $16.08 at June 30, 2021 to $16.86 at September 30, 2021 is directly related to the 5.10% increase in the settlement price for the Index Futures. The NAV increased slightly less than the settlement price for the Index Futures on a percentage basis due to the Sponsor’s fees and brokerage commissions.

Net increase in net assets resulting from operations for the quarter ended September 30, 2021 was $60,122,626, resulting from a net investment loss of $2,710,384 and a net realized and unrealized gain of $62,833,010. For the quarter ended September 30, 2021, the Trust had a net realized and unrealized gain of $49,494 on short-term investments and a net realized and unrealized gain of $62,783,516 on futures contracts. Other than the Sponsor’s fees of $2,482,274 and brokerage commissions and fees of $322,517, the Trust had no expenses during the quarter.

The Nine-Month Period Ended September 30, 2021

The Trust’s net asset value increased from $827,346,620 at December 31, 2020 to $1,316,939,595 at September 30, 2021. The increase in the Trust’s net asset value resulted primarily from a net increase in net assets resulting from operations. The Trust’s net asset value also benefitted from an increase in the number of outstanding Shares, which rose from 67,250,000 Shares at December 31, 2020 to 78,100,000 Shares at September 30, 2021, a consequence of 27,900,000 Shares (558 Baskets) being created and 17,050,000 Shares (341 Baskets) being redeemed during the period.

The 37.07% increase in the NAV from $12.30 at December 31, 2020 to $16.86 at September 30, 2021 is directly related to the 38.08% increase in the settlement price for the Index Futures. The NAV increased slightly less than the settlement price for the Index Futures on a percentage basis due to the Sponsor’s fees and brokerage commissions.

Net increase in net assets resulting from operations for the period was $352,712,242, resulting from a net investment loss of $7,493,141 and a net realized and unrealized gain of $360,205,383. For the nine months ended September 30, 2021, the Trust had a net realized and unrealized loss of $21,513 on short‑term investments and a net realized and unrealized gain of $360,226,896 on futures contracts. Other than the Sponsor’s fees of $6,783,239 and brokerage commissions and fees of $1,000,308, the Trust had no expenses during the period.

Liquidity and Capital Resources

The Trust’s assets as of September 30, 2021 consist of Index Futures and Collateral Assets used to satisfy applicable margin requirements for those Index Futures positions. The Trust does not anticipate any further need for liquidity, because creations and redemptions of Shares generally occur in-kind and ordinary expenses are met by cash on hand. Interest earned on the assets posted as collateral is paid to the Trust and is used to pay the Sponsor’s fees and purchase additional Index Futures and Collateral Assets, or, in the discretion of the Sponsor, distributed to Shareholders. In exchange for a fee based on the net asset value of the Trust, the Sponsor has assumed most of the ordinary expenses incurred by the Trust. In the case of an extraordinary expense and/or insufficient interest income to cover ordinary expenses, however, the Trust could be forced to liquidate its positions in Index Futures and Collateral Assets to pay such expenses. As of September 30, 2021, the market for Index Futures had not developed significant liquidity and the Trust represented substantially all of the long-side open interest in Index Futures. In addition, it is expected that Goldman Sachs & Co. LLC or its accountholders may represent, directly or indirectly, a substantial portion of the short-side interest in such market. The existence of such a limited number of market participants could cause or exacerbate losses to the Trust if the Trust were required to liquidate its Index Futures positions.

The Sponsor is unaware of any other trends, demands, conditions or events that are reasonably likely to result in material changes to the Trust’s liquidity needs.

Because the Trust trades Index Futures, its capital is at risk due to changes in the value of the Index Futures or other assets (market risk) or the inability of counterparties to perform (credit risk).

Market Risk

The Trust holds Index Futures positions and Collateral Assets to satisfy applicable margin requirements on those Index Futures positions. Because of this limited diversification of the Trust’s assets, fluctuations in the value of the Index Futures are expected to directly affect the value of the Shares. The value of the Index Futures is expected to track generally the S&P GSCI-ER, although this correlation may not be exact. The S&P GSCI-ER, in turn, reflects the value of a diversified group of commodities. The Trust’s exposure to market risk will be influenced by a number of factors, including the lack of liquidity of the Index Futures market and activities of other market participants.

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Credit Risk

When the Trust purchases or holds Index Futures, it is exposed to the credit risk of a default by the CME’s clearing house, which serves as the counterparty to each Index Futures position, and of a default by its futures commission merchant, or Clearing FCM. In the case of such a default, the Trust may be unable to recover amounts due to it on its Index Futures positions and Collateral Assets posted as margin. The Trust is also exposed to credit risk as a result of its ownership of U.S. Treasury bills.

Off-Balance Sheet Arrangements and Contractual Obligations

The Trust does not use and is not expected to use special purpose entities to facilitate off-balance sheet financing arrangements. The Trust does not have and is not expected to have loan guarantee arrangements or other off-balance sheet arrangements of any kind other than agreements entered into in the normal course of business, which may include indemnification provisions related to certain risks service providers undertake in performing services that are in the interest of the Trust. While the Trust’s exposure under such indemnification provisions cannot be estimated, these general business indemnifications are not expected to have a material impact on the Trust’s financial position.

Critical Accounting Policies

The financial statements and accompanying notes are prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these financial statements relies on estimates and assumptions that impact the Trust’s financial position and results of operations. These estimates and assumptions affect the Trust’s application of accounting policies. In addition, please refer to Note 2 to the financial statements of the Trust for further discussion of the Trust’s accounting policies.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Quantitative Disclosure

The Trust is exposed to commodity price risk through the Trust’s holdings of Index Futures. The following table provides information about the Trust’s futures contract positions, which are sensitive to changes in commodity prices. As of September 30, 2021, the Trust’s open Index Futures positions (long) were as follows:

Number of contracts:		52,757
Expiration date:	December 2021
Weighted-average price per contract:	$	236.45
Notional amount (fair value):	$	1,316,397,940

The notional amount is calculated using the settlement price for the Index Futures on the CME on September 30, 2021, which was $249.52 per contract, and the $100 multiplier applicable under the contract terms.

The Trust has non-trading market risk as a result of investing in short-term U.S. Treasury bills and such market risk is expected to be immaterial.

Qualitative Disclosure

As described herein, the Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodities futures. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities. The Index itself is intended to reflect the performance of a diversified group of physical commodities, including energy commodities, precious and industrial metal commodities, agricultural commodities and livestock commodities. The Trust obtains this exposure to commodity prices through the Trust’s Index Futures positions. As a result, fluctuations in the value of the Trust’s Index Futures are expected to directly affect the value of the Shares.

The Trust will not engage in any activities designed to obtain a profit from, or ameliorate losses caused by, changes in the level of the Index or the S&P GSCI‑ER, or the value of any Collateral Assets. The Trust’s exposure to market risk may be influenced by a number of factors, including the lack of liquidity of the Index Futures market and activities of other market participants.

Item 4. Controls and Procedures

The duly authorized officers of the Sponsor performing functions equivalent to those a principal executive officer and principal financial officer of the Trust would perform if the Trust had any officers, with the participation of the Trustee, have evaluated the effectiveness of the Trust’s disclosure controls and procedures, and have concluded that the disclosure controls and procedures of the Trust were effective as of the end of the period covered by this report to provide reasonable assurance that information required to be disclosed in the reports that the Trust files or submits under the Securities Exchange Act of 1934, as amended, is recorded, processed, summarized and reported, within the time periods specified in the applicable rules and forms, and that it is accumulated and communicated to the duly authorized officers of the Sponsor performing functions equivalent to those a principal executive officer and principal financial officer of the Trust would perform if the Trust had any officers, as appropriate to allow timely decisions regarding required disclosure.

There are inherent limitations to the effectiveness of any system of disclosure controls and procedures, including the possibility of human error and the circumvention or overriding of the controls and procedures.

There were no changes in the Trust’s internal control over financial reporting that occurred during the period covered by this report that have materially affected, or are reasonably likely to materially affect, the Trust’s internal control over financial reporting.

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PART II – OTHER INFORMATION

Item 1. Legal Proceedings

None.

Item 1A. Risk Factors

There have been no material changes to the Risk Factors last reported under Part I, Item 1A of the registrant’s Annual Report on Form 10-K for the year ended December 31, 2020, filed with the Securities and Exchange Commission on March 1, 2021.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

a) None.

b) Not applicable.

c) 7,850,000 Shares (157 Baskets) were redeemed during the quarter ended September 30, 2021.

Period	Total Number of Shares Redeemed		Average Price Per Share
07/01/21 to 07/31/21		2,950,000	$	15.98
08/01/21 to 08/31/21		1,700,000		15.51
09/01/21 to 09/30/21		3,200,000		16.21
Total		7,850,000	$	15.99

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

None.

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Item 6. Exhibits

Exhibit No. Description

3.1 Restated Certificate of Trust of iShares® S&P GSCI™ Commodity-Indexed Trust is incorporated by reference to Exhibit 3.1(i) of registrant’s Current Report on Form 8-K filed on May 9, 2007

4.1 Third Amended and Restated Trust Agreement is incorporated by reference to Exhibit 4.1 of registrant’s Registration Statement No. 333‑193156 filed on January 2, 2014

4.2 Authorized Participant Agreement is incorporated by reference to Exhibit 4.2 of registrant’s Current Report on Form 8-K filed on November 29, 2013

10.1 Investment Advisory Agreement is incorporated by reference to Exhibit 10.1 of registrant’s Registration Statement No. 333-193156 filed on January 2, 2014

10.2 Sublicense Agreement is incorporated by reference to Exhibit 10.2 of registrant’s Registration Statement No. 333-126810 filed on May 26, 2006

10.3 Futures and Options Account Agreement is incorporated by reference to Exhibit 10.3 of registrant’s Registration Statement No. 333‑193156 filed on January 2, 2014

10.4 Master Services Agreement is incorporated by reference to Exhibit 10.4 of registrant’s Registration Statement No. 333-254992 filed on May 24, 2021

10.5 Service Module for Custodial Services is incorporated by reference to Exhibit 10.5 of registrant’s Registration Statement No. 333-254992 filed on May 24, 2021

10.6 Service Module for Fund Administration and Accounting Services is incorporated by reference to Exhibit 10.6 of registrant’s Registration Statement No. 333-254992 filed on May 24, 2021

10.7 Control Agreement is incorporated by reference to Exhibit 10.7 of registrant’s Post-Effective amendment No. 1 to Registration Statement No. 333-193156 filed on April 2, 2014

31.1 Certification by Principal Executive Officer Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended

31.2 Certification by Principal Financial Officer Pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended

32.1 Certification by Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002

32.2 Certification by Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes‑Oxley Act of 2002

101.INS Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document.

101.SCH Inline XBRL Taxonomy Extension Schema Document

101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document

104 Cover Page Interactive Data File included as Exhibit 101 (embedded within the Inline XBRL document)

17

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned in the capacities* indicated, thereunto duly authorized.

iShares Delaware Trust Sponsor LLC,

Sponsor of the iShares S&P GSCI™ Commodity-Indexed Trust (registrant)

/s/ Paul Lohrey

Paul Lohrey

Director, President and Chief Executive Officer

(Principal executive officer)

Date: November 3, 2021

/s/ Trent Walker

Trent Walker

Chief Financial Officer

(Principal financial and accounting officer)

Date: November 3, 2021

_* The registrant is a trust and the persons are signing in their respective capacities as officers of iShares Delaware Trust Sponsor LLC, the Sponsor of the registrant.

18

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Paul Lohrey, certify that:

1. I have reviewed this report on Form 10-Q of iShares S&P GSCI™ Commodity-Indexed Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a‑15(f) and 15d‑15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 3, 2021

/s/ Paul Lohrey

Paul Lohrey

President and Chief Executive Officer

(Principal executive officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Trent Walker, certify that:

1. I have reviewed this report on Form 10-Q of iShares S&P GSCI™ Commodity-Indexed Trust;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a‑15(f) and 15d‑15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: November 3, 2021

/s/ Trent Walker 

Trent Walker

Chief Financial Officer

(Principal financial and accounting officer)

EX-32.1

Exhibit 32.1

Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report of iShares S&P GSCI™ Commodity-Indexed Trust (the “Trust”) on Form 10-Q for the period ended September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Paul Lohrey, Chief Executive Officer of iShares Delaware Trust Sponsor LLC, the Sponsor of the Trust, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Trust.

It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934.

Date: November 3, 2021

/s/ Paul Lohrey 

Paul Lohrey*

President and Chief Executive Officer

(Principal executive officer)

* The registrant is a trust and Mr. Lohrey is signing in his capacity as an officer of iShares Delaware Trust Sponsor LLC, the Sponsor of the registrant.

EX-32.2

Exhibit 32.2

Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

In connection with the Quarterly Report of iShares S&P GSCI™ Commodity-Indexed Trust (the “Trust”) on Form 10-Q for the period ended September 30, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Trent Walker, Chief Financial Officer of iShares Delaware Trust Sponsor LLC, the Sponsor of the Trust, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Trust.

It is not intended that this statement be deemed to be filed for purposes of the Securities Exchange Act of 1934.

Date: November 3, 2021

/s/ Trent Walker   

Trent Walker*

Chief Financial Officer

(Principal financial and accounting officer)

_* The registrant is a trust and Mr. Walker is signing in his capacity as an officer of iShares Delaware Trust Sponsor LLC, the Sponsor of the registrant.

XML

Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2021	Oct. 29, 2021
Document Information [Line Items]
Entity Central Index Key	0001332174
Entity Registrant Name	iShares S&P GSCI Commodity-Indexed Trust
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2021
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2021
Document Transition Report	false
Entity File Number	001-32947
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	51-6573369
Entity Address, Address Line One	400 Howard Street
Entity Address, City or Town	San Francisco
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94105
City Area Code	415
Local Phone Number	670-2000
Title of 12(b) Security	Shares
Trading Symbol	GSG
Security Exchange Name	NYSEArca
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		79,950,000

XML

Statements of Assets and Liabilities (Unaudited) - USD ($)		Sep. 30, 2021	Dec. 31, 2020
Assets
Cash		$ 13,627,637	$ 20,622,531
Short-term investments, at fair value	[1]	1,249,725,359	772,677,694
Short-term investments held at the broker (restricted), at fair value	[2]	48,196,963	42,290,413
Receivable for variation margin on open futures contracts (Note 9)		6,183,136	3,335,487
Total Assets		1,317,733,095	838,926,125
Liabilities
Sponsor’s fees payable		793,500	507,208
Payable for capital shares redeemed		0	11,072,297
Total Liabilities		793,500	11,579,505
Commitments and contingent liabilities (Note 7)
Net Assets		$ 1,316,939,595	$ 827,346,620
Shares issued and outstanding (in shares)	[3]	78,100,000	67,250,000
Net asset value per Share (Note 2G) (in dollars per share)		$ 16.86	$ 12.30

[1] Cost of short-term investments: $1,249,728,095 and $772,661,613, respectively.

[2] Cost of short-term investments held at the broker (restricted): $48,196,302 and $42,287,936, respectively.

[3] No par value, unlimited amount authorized.

XML

Statements of Assets and Liabilities (Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands	Sep. 30, 2021	Dec. 31, 2020
Cost of short-term investments	$ 1,249,728,095	$ 772,661,613
Cost of short-term investments held at broker (restricted)	$ 48,196,302	$ 42,287,936
Shares, outstanding (in shares)	78,100,000	67,250,000
Shares, par value (in dollars per share)	$ 0	$ 0

XML

Statements of Operations (Unaudited) - USD ($)		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Investment Income
Interest		$ 94,407	$ 204,222	$ 290,406	$ 3,580,469
Total investment income		94,407	204,222	290,406	3,580,469
Expenses
Sponsor’s fees		2,482,274	1,309,010	6,783,239	3,609,289
Brokerage commissions and fees		322,517	274,439	1,000,308	741,568
Total expenses		2,804,791	1,583,449	7,783,547	4,350,857
Net Investment loss		(2,710,384)	(1,379,227)	(7,493,141)	(770,388)
Net Realized and Unrealized Gain (Loss)
Short-term investments		(1,506)	16	(880)	61,120
Futures contracts		10,796,107	31,519,147	333,696,632	(275,413,702)
Net realized gain (loss)		10,794,601	31,519,163	333,695,752	(275,352,582)
Net change in unrealized appreciation/depreciation on:
Short-term investments		51,000	(11,385)	(20,633)	(96,979)
Futures contracts		51,987,409	(3,320,408)	26,530,264	(7,363,713)
Net change in unrealized appreciation/depreciation		52,038,409	(3,331,793)	26,509,631	(7,460,692)
Net realized and unrealized gain (loss)		62,833,010	28,187,370	360,205,383	(282,813,274)
Net increase (decrease) in net assets resulting from operations		$ 60,122,626	$ 26,808,143	$ 352,712,242	$ (283,583,662)
Net increase (decrease) in net assets per Share (in dollars per share)	[1]	$ 0.73	$ 0.42	$ 4.37	$ (4.95)

[1] Net increase (decrease) in net assets per Share based on average shares outstanding during the period.

XML

Statements of Changes in Net Assets (Unaudited) - USD ($)	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Net Assets, Beginning of Period	$ 1,359,450,396	$ 1,114,035,126	$ 827,346,620	$ 609,244,207	$ 501,546,756	$ 775,343,105	$ 827,346,620	$ 775,343,105
Operations:
Net investment income (loss)	(2,710,384)	(2,702,412)	(2,080,345)	(1,379,227)	(419,416)	1,028,255	(7,493,141)	(770,388)
Net realized gain (loss)	10,794,601	119,960,219	202,940,932	31,519,163	(82,704,409)	(224,167,336)	333,695,752	(275,352,582)
Net change in unrealized appreciation/depreciation	52,038,409	62,032,759	(87,561,537)	(3,331,793)	140,833,410	(144,962,309)	26,509,631	(7,460,692)
Net increase in net assets resulting from operations	60,122,626	179,290,566	113,299,050	26,808,143	57,709,585	(368,101,390)	352,712,242	(283,583,662)
Capital Share Transactions:
Contributions for Shares issued	22,714,206	160,863,723	217,200,755	113,149,993	69,679,590	134,854,545
Distributions for Shares redeemed	(125,347,633)	(94,739,019)	(43,811,299)	(31,118,609)	(19,691,724)	(40,549,504)
Net increase (decrease) in net assets from capital share transactions	(102,633,427)	66,124,704	173,389,456	82,031,384	49,987,866	94,305,041
Increase (decrease) in net assets	(42,510,801)	245,415,270	286,688,506	108,839,527	107,697,451	(273,796,349)
Net Assets, End of Period	$ 1,316,939,595	$ 1,359,450,396	$ 1,114,035,126	$ 718,083,734	$ 609,244,207	$ 501,546,756	$ 1,316,939,595	$ 718,083,734
Shares issued (in shares)							27,900,000	27,650,000
Shares redeemed (in shares)							(17,050,000)	(8,750,000)
Net increase (decrease) in Shares issued and outstanding (in shares)							10,850,000	18,900,000
Shares issued and redeemed
Shares issued (in shares)							27,900,000	27,650,000
Shares redeemed (in shares)							(17,050,000)	(8,750,000)
Net increase (decrease) in Shares issued and outstanding (in shares)							10,850,000	18,900,000

XML

Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Cash Flows from Operating Activities
Net increase (decrease) in net assets resulting from operations	$ 60,122,626	$ 26,808,143	$ 352,712,242	$ (283,583,662)
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:
Purchases of short-term investments			(6,773,376,889)	(3,024,026,140)
Sales/maturities of short-term investments			6,290,691,567	3,081,735,489
Accretion of discount			(290,406)	(3,578,269)
Net realized (gain) loss on short-term investments	1,506	(16)	880	(61,120)
Net change in unrealized appreciation/depreciation on short-term investments	(51,000)	11,385	20,633	96,979
Change in operating assets and liabilities:
Receivable for variation margin on open futures contracts			(2,847,649)	(10,882,146)
Payable for variation margin on open futures contracts			(11,072,297)	(5,952,581)
Sponsor’s fees payable			286,292	(27,110)
Net cash provided by (used in) operating activities			(143,875,627)	(246,278,560)
Cash Flows from Financing Activities
Contributions for Shares issued			400,778,684	317,684,128
Distributions for Shares redeemed			(263,897,951)	(90,282,444)
Net cash provided by (used in) financing activities			136,880,733	227,401,684
Net decrease in cash			(6,994,894)	(18,876,876)
Cash
Beginning of year, Unrestricted — cash			20,622,531	31,242,158
End of year, Unrestricted — cash	$ 13,627,637	$ 12,365,282	$ 13,627,637	$ 12,365,282

XML

Schedules of Investments (Unaudited)

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Investment Holdings, Schedule of Investments [Text Block]

iShares S&P GSCI™ Commodity-Indexed Trust

Schedules of Investments (Unaudited)

At September 30, 2021 and December 31, 2020

September 30, 2021

Security Description	Face Amount		Fair Value
U.S. Treasury bills(a)(b):
0.01% – 0.04% due 10/05/21	$	153,000,000	$	152,999,615
0.03% – 0.04% due 10/07/21		85,000,000		84,999,469
0.04% due 11/02/21		49,000,000		48,997,454
0.05% due 11/04/21		12,000,000		11,999,150
0.04% due 11/09/21		45,000,000		44,997,258
0.03% due 11/16/21		22,000,000		21,998,805
0.03% due 11/26/21		48,000,000		47,997,200
0.01% – 0.04% due 12/02/21		119,000,000		118,992,450
0.04% due 12/07/21		83,000,000		82,995,521
0.03% – 0.04% due 12/09/21		113,000,000		112,993,862
0.04% due 12/14/21		20,000,000		19,998,643
0.03% – 0.04% due 12/16/21		128,000,000		127,990,272
0.02% – 0.04% due 12/21/21		135,000,000		134,991,495
0.03% due 12/23/21		16,000,000		15,998,647
0.03% due 12/28/21		40,000,000		39,996,089
0.04% due 12/30/21		65,000,000		64,993,500
0.03% due 01/04/22		60,000,000		59,995,250
0.03% due 01/06/22		47,000,000		46,995,572
0.03% due 01/11/22		8,000,000		7,999,320
0.04% due 01/25/22		50,000,000		49,992,750
Total U.S. Treasury bills (Cost: $1,297,924,397)				1,297,922,322
Total Investments – 98.56%				1,297,922,322
Other Assets, Less Liabilities – 1.44%				19,017,273
Net Assets – 100.00%			$	1,316,939,595

(a) A portion of the above U.S. Treasury bills are posted as margin for the Trust’s Index Futures positions as described in Note 2D.

(b) Rates shown are discount rates paid at the time of purchase.

As of September 30, 2021, the open S&P GSCI-ER futures contracts were as follows:

Number of Contracts	Expiration Date	Current Notional Amount		Net Unrealized Appreciation (Depreciation)
52,757	December 15, 2021	$	1,316,397,940	$	68,982,834

December 31, 2020

Security Description	Face Amount		Fair Value
U.S. Treasury bills(a)(b):
0.05% – 0.08% due 1/05/21	$	53,000,000	$	52,999,993
0.06% – 0.10% due 1/07/21		112,000,000		111,999,720
0.07% – 0.08% due 1/12/21		30,000,000		29,999,734
0.07% – 0.10% due 1/14/21		155,000,000		154,998,062
0.07% due 1/19/21		40,000,000		39,999,333
0.07% – 0.11% due 1/21/21		60,000,000		59,998,725
0.08% – 0.09% due 1/28/21		50,000,000		49,998,084
0.07% – 0.09% due 2/04/21		26,000,000		25,998,769
0.06% – 0.07% due 2/09/21		73,000,000		72,996,715
0.11% due 2/11/21		75,000,000		74,995,250
0.07% – 0.11% due 2/18/21		60,000,000		59,995,125
0.09% due 2/25/21		16,000,000		15,998,440
0.10% due 3/04/21		10,000,000		9,998,853
0.07% due 3/11/21		29,000,000		28,996,012
0.08% due 3/23/21		19,000,000		18,996,912
0.06% due 4/15/21		7,000,000		6,998,380
Total U.S. Treasury bills (Cost: $814,949,549)				814,968,107
Total Investments – 98.50%				814,968,107
Other Assets, Less Liabilities – 1.50%				12,378,513
Net Assets – 100.00%			$	827,346,620

(a) A portion of the above U.S. Treasury bills are posted as margin for the Trust’s Index Futures positions as described in Note 2D.

(b) Rates shown are discount rates paid at the time of purchase.

As of December 31, 2020, the open S&P GSCI-ER futures contracts were as follows:

Number of Contracts	Expiration Date	Current Notional Amount		Net Unrealized Appreciation (Depreciation)
45,779	March 15, 2021	$	827,249,420	$	42,452,572

See notes to financial statements.

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Note 1 - Organization

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Business Description and Basis of Presentation [Text Block]

1 - Organization

The iShares S&P GSCI™ Commodity-Indexed Trust (the “Trust”) is a Delaware statutory trust that was organized under the laws of the State of Delaware on July 7, 2006 and commenced operations on July 10, 2006. iShares Delaware Trust Sponsor LLC, a Delaware limited liability company, is the sponsor of the Trust (the “Sponsor”). The sole member and manager of the Sponsor is BlackRock Asset Management International Inc., a Delaware corporation.

BlackRock Institutional Trust Company, N.A. is the trustee of the Trust (the “Trustee”). The Trust is governed by the Third Amended and Restated Trust Agreement, dated as of December 31, 2013 (the “Trust Agreement”), among the Sponsor, the Trustee and Wilmington Trust Company (the “Delaware Trustee”). The Trust issues units of beneficial interest (“Shares”) representing fractional undivided beneficial interests in its net assets.

The Trust holds long positions in exchange-traded index futures contracts of various expirations (“Index Futures”) on the S&P GSCI™ Excess Return Index (“S&P GSCI‑ER”). In order to collateralize its Index Futures positions and to reflect the U.S. Treasury component of the S&P GSCI™ Total Return Index (the “Index”), the Trust also holds “Collateral Assets,” which consist of cash, U.S. Treasury securities or other short-term securities and similar securities that are eligible as margin deposits for those Index Futures positions. The Index Futures held by the Trust are listed on the Chicago Mercantile Exchange (the “CME”).

The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodity futures. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities.

The Trust is a commodity pool, as defined in the Commodity Exchange Act (the “CEA”) and the applicable regulations of the Commodity Futures Trading Commission (the “CFTC”), and is operated by the Sponsor, a commodity pool operator registered with the CFTC. The Sponsor is an indirect subsidiary of BlackRock, Inc. (“BlackRock”). BlackRock Fund Advisors (the “Advisor”), an indirect subsidiary of BlackRock, serves as the commodity trading advisor of the Trust and is registered with the CFTC.

The accompanying unaudited financial statements were prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions for Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). In the opinion of management, all material adjustments, consisting only of normal recurring adjustments considered necessary for a fair statement of the interim period financial statements, have been made. Interim period results are not necessarily indicative of results for a full-year period. These financial statements and the notes thereto should be read in conjunction with the Trust’s financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2020, as filed with the SEC on March 1, 2021.

The Trust qualifies as an investment company solely for accounting purposes and follows the accounting and reporting guidance under the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 946, Financial Services – Investment Companies, but is not registered, and is not required to be registered, as an investment company under the Investment Company Act of 1940, as amended.

XML

Note 2 - Significant Accounting Policies

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Significant Accounting Policies [Text Block]

2 - Significant Accounting Policies

A. Basis of Accounting

The following significant accounting policies are consistently followed by the Trust in the preparation of its financial statements in conformity with U.S. GAAP. The preparation of financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.

Certain statements and captions in the financial statements for the prior periods have been changed to conform to the current financial statement presentation.

B. Investment in Index Futures

The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodity futures, including energy commodities, precious and industrial metal commodities, agricultural commodities and livestock commodities. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities.

The assets of the Trust consist of Index Futures and cash or other Collateral Assets used to satisfy applicable margin requirements for those Index Futures positions. Index Futures are exchange-traded index futures contracts on the S&P GSCI-ER, and are expected to include contracts of different terms and expirations. The Trust is expected to roll out of existing positions in Index Futures and establish new positions in Index Futures on an ongoing basis. When establishing positions in Index Futures, the Trust is required to deposit cash or other Collateral Assets with the broker as “initial margin.” On a daily basis, the Trust is obligated to pay, or entitled to receive, cash in an amount equal to the change in the daily settlement level of its Index Futures positions. Such payments or receipts are known as variation margin. Variation margin is recorded as unrealized appreciation (depreciation) and, if any, shown as variation margin receivable (or payable) on futures contracts in the statements of assets and liabilities. When an Index Futures contract is closed, the Trust records a realized gain or loss based on the difference between the value of the Index Futures contract at the time it was opened and the value at the time it was closed.

Index Futures are derivative instruments valued at fair value, which the Trustee has determined to be that day’s announced settlement price on the CME or any such other futures exchange listing Index Futures (the “Exchange”). If there is no announced settlement price for a particular Index Futures contract on that day, the Trustee will use the most recently announced settlement price unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation. The Trust’s derivatives are not designated as hedges, and all changes in the fair value are reflected in the statements of operations.

For futures contracts, counterparty credit risk is mitigated because futures contracts are exchange-traded and the exchange’s clearing house acts as central counterparty to all exchange-traded futures contracts (although customers continue to have credit exposure to the clearing member who holds their account).

Please refer to Note 9 for additional disclosures regarding the Trust’s investments in futures contracts.

C. Cash

The Trust considers cash as currencies deposited in one or more bank account. Cash is presented on the statements of cash flows as unrestricted cash.

D. Short-Term Investments

Short-term investments on the statements of assets and liabilities consist principally of short-term fixed income securities with original maturities of one year or less. These investments are valued at fair value.

As of September 30, 2021 and December 31, 2020, the Trust had restricted short-term investments held at the broker of $48,196,963 and $42,290,413, respectively, which were posted as margin for the Trust’s Index Futures positions.

E. Securities Transactions and Income Recognition

Securities transactions are accounted for on the trade date. Realized gains and losses on investment transactions are determined using the specific identification method. Interest income, including amortization and accretion of premiums and discounts on debt securities, is recognized daily on an accrual basis.

F. Income Taxes

The Trust is treated as a partnership for federal, state and local income tax purposes.

No provision for federal, state, and local income taxes has been made in the accompanying financial statements because the Trust is not subject to income taxes. Shareholders are individually responsible for their own tax payments on their proportionate share of income, gain, loss, deduction, expense and credit.

The Sponsor has analyzed the tax positions as of September 30, 2021, inclusive of the open tax return years, and does not believe that there are any uncertain tax positions that require recognition of a tax liability.

G. Calculation of Net Asset Value

The net asset value of the Trust on any given day is obtained by subtracting the Trust’s accrued expenses and other liabilities on that day from the value of (1) the Trust’s Index Futures positions and Collateral Assets on that day, (2) the interest earned on those assets by the Trust and (3) any other assets of the Trust, as of 4:00 p.m. (New York time) that day. The Trustee determines the net asset value per Share (the “NAV”) by dividing the net asset value of the Trust on a given day by the number of Shares outstanding at the time the calculation is made. The NAV is calculated each business day on which NYSE Arca, Inc. (“NYSE Arca”) is open for regular trading, as soon as practicable after 4:00 p.m. (New York time).

H. Distributions

Interest and distributions received by the Trust on its assets may be used to acquire additional Index Futures and Collateral Assets or, in the discretion of the Sponsor, distributed to shareholders. The Trust is under no obligation to make periodic distributions to shareholders.

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Note 3 - Offering of the Shares

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

3 - Offering of the Shares

Shares are issued and redeemed continuously in one or more blocks of 50,000 Shares (the “Baskets”) in exchange for Index Futures and cash (or, in the discretion of the Sponsor, other Collateral Assets in lieu of cash). Only registered broker-dealers who have entered into an authorized participant agreement with the Trust (each, an “Authorized Participant”) may purchase or redeem Baskets. Individual investors that are not Authorized Participants cannot purchase or redeem Shares in direct transactions with the Trust. Authorized Participants may redeem their Shares (as well as Shares on behalf of other investors) at any time before 2:40 p.m. (New York time) on any business day in one or more Baskets. Redemptions of Shares in exchange for baskets of Index Futures and cash (or, in the discretion of the Sponsor, other Collateral Assets in lieu of cash) are treated as sales for financial statement purposes.

It is possible that, from time to time, BlackRock and/or funds or other accounts managed by the Trustee or an affiliate (collectively, “Affiliates”) may purchase and hold Shares of the Trust. Affiliates reserve the right, subject to compliance with applicable law, to sell into the market or redeem in Baskets through an Authorized Participant at any time some or all of the Shares of the Trust acquired for their own accounts. A large sale or redemption of Shares of the Trust by Affiliates could significantly reduce the asset size of the Trust, which might have an adverse effect on the Trust and the Shares that remain outstanding.

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Note 4 - Trust Expenses

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Expenses [Text Block]

4 - Trust Expenses

The Trust is responsible for paying any applicable brokerage commissions and similar transaction fees out of its assets in connection with the roll of Index Futures held by the Trust. These expenses are recorded as brokerage commissions and fees in the statements of operations as incurred.

The Sponsor pays the amounts that would otherwise be considered the ordinary operating expenses, if any, of the Trust. In return, the Sponsor receives a fee from the Trust that accrues daily and is paid monthly in arrears at an annualized rate equal to 0.75% of the net asset value of the Trust, as calculated before deducting fees and expenses based on the value of the Trust’s assets.

The Sponsor has agreed under the Trust Agreement to pay the following administrative, operational and marketing expenses: (1) the fees of the Trustee, the Delaware Trustee, the Advisor, the Trust Administrator, the processing agent and their respective agents, (2) NYSE Arca listing fees, (3) printing and mailing costs, (4) audit fees, (5) fees for registration of the Shares with the SEC, (6) tax reporting costs, (7) license fees and (8) legal expenses relating to the Trust of up to $100,000 annually.

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Note 5 - Related Parties

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Related Party Transactions Disclosure [Text Block]

5 - Related Parties

The Sponsor, the Trustee and the Advisor are considered to be related parties to the Trust. The Trustee’s and Advisor’s fees are paid by the Sponsor and are not a separate expense of the Trust.

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Note 6 - Indemnification

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Indemnification [Text Block]

6 - Indemnification

The Trust Agreement provides that the Trustee shall indemnify the Sponsor, its directors, employees, delegees and agents against, and hold each of them harmless from, any loss, liability, claim, cost, expense or judgment of any kind whatsoever (including reasonable fees and expenses of counsel) (i) caused by the negligence or bad faith of the Trustee or (ii) arising out of any information furnished in writing to the Sponsor by the Trustee expressly for use in the registration statement, or any amendment thereto or periodic report, filed with the SEC relating to the Shares that is not materially altered by the Sponsor.

The Trust Agreement provides that the Sponsor and its shareholders, directors, officers, employees, affiliates (as such term is defined under the Securities Act of 1933, as amended) and subsidiaries and agents shall be indemnified from the Trust and held harmless against any loss, liability, claim, cost, expense or judgment of any kind whatsoever (including the reasonable fees and expenses of counsel) arising out of or in connection with the performance of their obligations under the Trust Agreement or any actions taken in accordance with the provisions of the Trust Agreement and incurred without their (1) negligence, bad faith or willful misconduct or (2) reckless disregard of their obligations and duties under the Trust Agreement.

The investment advisory agreement (the “Advisory Agreement”) between the Trust and the Advisor provides that the Advisor and its shareholders, directors, officers, employees, affiliates (as such term is defined under the Securities Act of 1933, as amended) and subsidiaries shall be indemnified from the Trust and held harmless against any loss, liability, cost, expense or judgment (including the reasonable fees and expenses of counsel) arising out of or in connection with the performance of their obligations under the Advisory Agreement or any actions taken in accordance with the provisions of the Advisory Agreement and incurred without their (1) negligence, bad faith or willful misconduct or (2) reckless disregard of their obligations and duties under the Advisory Agreement.

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Note 7 - Commitments and Contingent Liabilities

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Commitments and Contingencies Disclosure [Text Block]

7 - Commitments and Contingent Liabilities

In the normal course of business, the Trust may enter into contracts with service providers that contain general indemnification clauses. The Trust’s maximum exposure under these arrangements is unknown as this would involve future claims that may be made against the Trust that have not yet occurred.

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Note 8 - Financial Highlights

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Financial Highlights [Text Block]

8 - Financial Highlights

The following financial highlights relate to investment performance and operations for a Share outstanding for the three and nine months ended September 30, 2021 and 2020.

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Net asset value per Share, beginning of period	$	16.08		$	10.33		$	12.30		$	16.24
Net investment income (loss)(a)		(0.03	)		(0.02	)		(0.09	)		(0.01	)
Net realized and unrealized gain (loss)(b)		0.81			0.46			4.65			(5.46	)
Net increase (decrease) in net assets from operations		0.78			0.44			4.56			(5.47	)
Net asset value per Share, end of period	$	16.86		$	10.77		$	16.86		$	10.77
Total return, at net asset value(c)(d)		4.85	%		4.26	%		37.07	%		(33.68	)%
Ratio to average net assets:
Net investment income (loss)(e)		(0.82	)%		(0.79	)%		(0.83	)%		(0.16	)%
Expenses(e)		0.85	%		0.91	%		0.86	%		0.90	%

(a) Based on average Shares outstanding during the period.

(b) The amounts reported for a Share outstanding may not accord with the change in aggregate gains and losses on investments for each period due to the timing of Trust Share transactions in relation to the fluctuating fair values of the Trust’s underlying investments.

(c) Based on the change in net asset value of a Share during the period.

(d) Percentage is not annualized.

(e) Percentage is annualized.

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Note 9 - Investing in Index Futures

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Derivative Instruments and Hedging Activities Disclosure [Text Block]

9 - Investing in Index Futures

Substantially all of the Trust’s assets are invested in Index Futures. The Index Futures’ settlement value at expiration is based on the value of the S&P GSCI‑ER at that time. Therefore, the value of the Trust will fluctuate based upon the value of the S&P GSCI-ER and the prices of futures contracts and commodities underlying the S&P GSCI-ER. The commodities markets have historically been extremely volatile. For the nine months ended September 30, 2021 and the year ended December 31, 2020, the average month-end notional amounts of open Index Futures were $1,191,513,696 and $668,432,601, respectively.

The following table shows the variation margin on open futures contracts, by risk exposure category, on the statements of assets and liabilities as of September 30, 2021 and December 31, 2020:

	Asset Derivatives	Fair Value		Liability Derivatives	Fair Value
September 30, 2021
Commodity contracts	Receivable for variation margin on open futures contracts	$	6,183,136	Payable for variation margin on open futures contracts	$	—
December 31, 2020
Commodity contracts	Receivable for variation margin on open futures contracts	$	3,335,487	Payable for variation margin on open futures contracts	$	—

The following table shows the effect of the open futures contracts, by risk exposure category, on the statements of operations for the three and nine months ended September 30, 2021 and 2020:

	Statements of Operations Location	Net Realized Gain (Loss)			Net Change in Unrealized Appreciation/Depreciation
Three Months Ended September 30, 2021
Commodity contracts	Net realized gain (loss) from futures contracts	$	10,796,107		$	—
	Net change in unrealized appreciation/depreciation on futures contracts		—			51,987,409
Three Months Ended September 30, 2020
Commodity contracts	Net realized gain (loss) from futures contracts	$	31,519,147		$	—
	Net change in unrealized appreciation/depreciation on futures contracts		—			(3,320,408	)
Nine Months Ended September 30, 2021
Commodity contracts	Net realized gain (loss) from futures contracts	$	333,696,632		$	—
	Net change in unrealized appreciation/depreciation on futures contracts	$	—		$	26,530,264
Nine Months Ended September 30, 2020
Commodity contracts	Net realized gain (loss) from futures contracts	$	(275,413,702	)	$	—
	Net change in unrealized appreciation/depreciation on futures contracts	$	—		$	(7,363,713	)

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Note 10 - Investment Valuation

9 Months Ended

Sep. 30, 2021

Notes to Financial Statements

Fair Value Disclosures [Text Block]

10 - Investment Valuation

FASB Accounting Standards Codification Topic 820, Fair Value Measurements and Disclosures, defines fair value as the price the Trust would receive to sell an asset or pay to transfer a liability in an orderly transaction between market participants at the measurement date. The Trust’s policy is to value its investments at fair value.

Investments in Index Futures are measured at fair value on the basis of that day’s settlement price for Index Futures as announced by the applicable Exchange. If there is no announced settlement price for a particular Index Futures contract on a Business Day, the Trustee uses the most recently announced settlement price unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation.

U.S. Treasury bills are valued at the last available bid price received from independent pricing services. In determining the value of a fixed income investment, pricing services may use certain information with respect to transactions in such investments, quotations from dealers, pricing matrixes, market transactions in comparable investments, various relationships observed in the market between investments and calculated yield measures.

Various inputs are used in determining the fair value of financial instruments. Inputs may be based on independent market data (“observable inputs”) or they may be internally developed (“unobservable inputs”). These inputs are categorized into a disclosure hierarchy consisting of three broad levels for financial reporting purposes. The level of a value determined for a financial instrument within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement in its entirety. The three levels of the fair value hierarchy are as follows:

Level 1 – Unadjusted quoted prices in active markets for identical assets or liabilities;

Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability either directly or indirectly, including quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not considered to be active, inputs other than quoted prices that are observable for the asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means; and

Level 3 – Unobservable inputs that are unobservable for the asset or liability, including the Trust’s assumptions used in determining the fair value of investments.

Fair value pricing could result in a difference between the prices used to calculate the Trust’s net asset value and the prices used by the Trust’s underlying index, which in turn could result in a difference between the Trust’s performance and the performance of the Trust’s underlying index.

The following table summarizes the value of each of the Trust’s investments by the fair value hierarchy levels as of September 30, 2021 and December 31, 2020:

	Level 1		Level 2		Level 3		Total
September 30, 2021
Futures contracts(a)	$	68,982,834	$	—	$	—	$	68,982,834
U.S. Treasury bills		—		1,297,922,322		—		1,297,922,322
December 31, 2020
Futures contracts(a)	$	42,452,572	$	—	$	—	$	42,452,572
U.S. Treasury bills		—		814,968,107		—		814,968,107

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

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Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2021

Accounting Policies [Abstract]

Basis of Accounting, Policy [Policy Text Block]

A. Basis of Accounting

The following significant accounting policies are consistently followed by the Trust in the preparation of its financial statements in conformity with U.S. GAAP. The preparation of financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. Actual results could differ from those estimates.

Certain statements and captions in the financial statements for the prior periods have been changed to conform to the current financial statement presentation.

Derivatives, Methods of Accounting, Derivatives Not Designated or Qualifying as Hedges [Policy Text Block]

B. Investment in Index Futures

The Trust seeks to track the results of a fully collateralized investment in futures contracts on an index composed of a diversified group of commodity futures, including energy commodities, precious and industrial metal commodities, agricultural commodities and livestock commodities. The Trust seeks to track the investment returns of the Index before payment of the Trust’s expenses and liabilities.

The assets of the Trust consist of Index Futures and cash or other Collateral Assets used to satisfy applicable margin requirements for those Index Futures positions. Index Futures are exchange-traded index futures contracts on the S&P GSCI-ER, and are expected to include contracts of different terms and expirations. The Trust is expected to roll out of existing positions in Index Futures and establish new positions in Index Futures on an ongoing basis. When establishing positions in Index Futures, the Trust is required to deposit cash or other Collateral Assets with the broker as “initial margin.” On a daily basis, the Trust is obligated to pay, or entitled to receive, cash in an amount equal to the change in the daily settlement level of its Index Futures positions. Such payments or receipts are known as variation margin. Variation margin is recorded as unrealized appreciation (depreciation) and, if any, shown as variation margin receivable (or payable) on futures contracts in the statements of assets and liabilities. When an Index Futures contract is closed, the Trust records a realized gain or loss based on the difference between the value of the Index Futures contract at the time it was opened and the value at the time it was closed.

Index Futures are derivative instruments valued at fair value, which the Trustee has determined to be that day’s announced settlement price on the CME or any such other futures exchange listing Index Futures (the “Exchange”). If there is no announced settlement price for a particular Index Futures contract on that day, the Trustee will use the most recently announced settlement price unless the Trustee, in consultation with the Sponsor, determines that such price is inappropriate as a basis for valuation. The Trust’s derivatives are not designated as hedges, and all changes in the fair value are reflected in the statements of operations.

For futures contracts, counterparty credit risk is mitigated because futures contracts are exchange-traded and the exchange’s clearing house acts as central counterparty to all exchange-traded futures contracts (although customers continue to have credit exposure to the clearing member who holds their account).

Please refer to Note 9 for additional disclosures regarding the Trust’s investments in futures contracts.

Cash and Cash Equivalents, Policy [Policy Text Block]

C. Cash

The Trust considers cash as currencies deposited in one or more bank account. Cash is presented on the statements of cash flows as unrestricted cash.

Investment, Policy [Policy Text Block]

D. Short-Term Investments

Short-term investments on the statements of assets and liabilities consist principally of short-term fixed income securities with original maturities of one year or less. These investments are valued at fair value.

As of September 30, 2021 and December 31, 2020, the Trust had restricted short-term investments held at the broker of $48,196,963 and $42,290,413, respectively, which were posted as margin for the Trust’s Index Futures positions.

Securities Transactions Income and Expense Recognition [Policy Text Block]

E. Securities Transactions and Income Recognition

Securities transactions are accounted for on the trade date. Realized gains and losses on investment transactions are determined using the specific identification method. Interest income, including amortization and accretion of premiums and discounts on debt securities, is recognized daily on an accrual basis.

Income Tax, Policy [Policy Text Block]

F. Income Taxes

The Trust is treated as a partnership for federal, state and local income tax purposes.

No provision for federal, state, and local income taxes has been made in the accompanying financial statements because the Trust is not subject to income taxes. Shareholders are individually responsible for their own tax payments on their proportionate share of income, gain, loss, deduction, expense and credit.

The Sponsor has analyzed the tax positions as of September 30, 2021, inclusive of the open tax return years, and does not believe that there are any uncertain tax positions that require recognition of a tax liability.

Calculation of Net Asset Value [Policy Text Block]

G. Calculation of Net Asset Value

The net asset value of the Trust on any given day is obtained by subtracting the Trust’s accrued expenses and other liabilities on that day from the value of (1) the Trust’s Index Futures positions and Collateral Assets on that day, (2) the interest earned on those assets by the Trust and (3) any other assets of the Trust, as of 4:00 p.m. (New York time) that day. The Trustee determines the net asset value per Share (the “NAV”) by dividing the net asset value of the Trust on a given day by the number of Shares outstanding at the time the calculation is made. The NAV is calculated each business day on which NYSE Arca, Inc. (“NYSE Arca”) is open for regular trading, as soon as practicable after 4:00 p.m. (New York time).

Distributions [Policy Text Block]

H. Distributions

Interest and distributions received by the Trust on its assets may be used to acquire additional Index Futures and Collateral Assets or, in the discretion of the Sponsor, distributed to shareholders. The Trust is under no obligation to make periodic distributions to shareholders.

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Schedules of Investments (Unaudited) (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Investment [Table Text Block]

Security Description	Face Amount		Fair Value
U.S. Treasury bills(a)(b):
0.01% – 0.04% due 10/05/21	$	153,000,000	$	152,999,615
0.03% – 0.04% due 10/07/21		85,000,000		84,999,469
0.04% due 11/02/21		49,000,000		48,997,454
0.05% due 11/04/21		12,000,000		11,999,150
0.04% due 11/09/21		45,000,000		44,997,258
0.03% due 11/16/21		22,000,000		21,998,805
0.03% due 11/26/21		48,000,000		47,997,200
0.01% – 0.04% due 12/02/21		119,000,000		118,992,450
0.04% due 12/07/21		83,000,000		82,995,521
0.03% – 0.04% due 12/09/21		113,000,000		112,993,862
0.04% due 12/14/21		20,000,000		19,998,643
0.03% – 0.04% due 12/16/21		128,000,000		127,990,272
0.02% – 0.04% due 12/21/21		135,000,000		134,991,495
0.03% due 12/23/21		16,000,000		15,998,647
0.03% due 12/28/21		40,000,000		39,996,089
0.04% due 12/30/21		65,000,000		64,993,500
0.03% due 01/04/22		60,000,000		59,995,250
0.03% due 01/06/22		47,000,000		46,995,572
0.03% due 01/11/22		8,000,000		7,999,320
0.04% due 01/25/22		50,000,000		49,992,750
Total U.S. Treasury bills (Cost: $1,297,924,397)				1,297,922,322
Total Investments – 98.56%				1,297,922,322
Other Assets, Less Liabilities – 1.44%				19,017,273
Net Assets – 100.00%			$	1,316,939,595

Security Description	Face Amount		Fair Value
U.S. Treasury bills(a)(b):
0.05% – 0.08% due 1/05/21	$	53,000,000	$	52,999,993
0.06% – 0.10% due 1/07/21		112,000,000		111,999,720
0.07% – 0.08% due 1/12/21		30,000,000		29,999,734
0.07% – 0.10% due 1/14/21		155,000,000		154,998,062
0.07% due 1/19/21		40,000,000		39,999,333
0.07% – 0.11% due 1/21/21		60,000,000		59,998,725
0.08% – 0.09% due 1/28/21		50,000,000		49,998,084
0.07% – 0.09% due 2/04/21		26,000,000		25,998,769
0.06% – 0.07% due 2/09/21		73,000,000		72,996,715
0.11% due 2/11/21		75,000,000		74,995,250
0.07% – 0.11% due 2/18/21		60,000,000		59,995,125
0.09% due 2/25/21		16,000,000		15,998,440
0.10% due 3/04/21		10,000,000		9,998,853
0.07% due 3/11/21		29,000,000		28,996,012
0.08% due 3/23/21		19,000,000		18,996,912
0.06% due 4/15/21		7,000,000		6,998,380
Total U.S. Treasury bills (Cost: $814,949,549)				814,968,107
Total Investments – 98.50%				814,968,107
Other Assets, Less Liabilities – 1.50%				12,378,513
Net Assets – 100.00%			$	827,346,620

Schedule of Derivative Instruments [Table Text Block]

Number of Contracts	Expiration Date	Current Notional Amount		Net Unrealized Appreciation (Depreciation)
52,757	December 15, 2021	$	1,316,397,940	$	68,982,834

Number of Contracts	Expiration Date	Current Notional Amount		Net Unrealized Appreciation (Depreciation)
45,779	March 15, 2021	$	827,249,420	$	42,452,572

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Note 8 - Financial Highlights (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Financial Highlights [Table Text Block]

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2021			2020			2021			2020
Net asset value per Share, beginning of period	$	16.08		$	10.33		$	12.30		$	16.24
Net investment income (loss)(a)		(0.03	)		(0.02	)		(0.09	)		(0.01	)
Net realized and unrealized gain (loss)(b)		0.81			0.46			4.65			(5.46	)
Net increase (decrease) in net assets from operations		0.78			0.44			4.56			(5.47	)
Net asset value per Share, end of period	$	16.86		$	10.77		$	16.86		$	10.77
Total return, at net asset value(c)(d)		4.85	%		4.26	%		37.07	%		(33.68	)%
Ratio to average net assets:
Net investment income (loss)(e)		(0.82	)%		(0.79	)%		(0.83	)%		(0.16	)%
Expenses(e)		0.85	%		0.91	%		0.86	%		0.90	%

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Note 9 - Investing in Index Futures (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

	Asset Derivatives	Fair Value		Liability Derivatives	Fair Value
September 30, 2021
Commodity contracts	Receivable for variation margin on open futures contracts	$	6,183,136	Payable for variation margin on open futures contracts	$	—
December 31, 2020
Commodity contracts	Receivable for variation margin on open futures contracts	$	3,335,487	Payable for variation margin on open futures contracts	$	—

Derivative Instruments, Gain (Loss) [Table Text Block]

	Statements of Operations Location	Net Realized Gain (Loss)			Net Change in Unrealized Appreciation/Depreciation
Three Months Ended September 30, 2021
Commodity contracts	Net realized gain (loss) from futures contracts	$	10,796,107		$	—
	Net change in unrealized appreciation/depreciation on futures contracts		—			51,987,409
Three Months Ended September 30, 2020
Commodity contracts	Net realized gain (loss) from futures contracts	$	31,519,147		$	—
	Net change in unrealized appreciation/depreciation on futures contracts		—			(3,320,408	)
Nine Months Ended September 30, 2021
Commodity contracts	Net realized gain (loss) from futures contracts	$	333,696,632		$	—
	Net change in unrealized appreciation/depreciation on futures contracts	$	—		$	26,530,264
Nine Months Ended September 30, 2020
Commodity contracts	Net realized gain (loss) from futures contracts	$	(275,413,702	)	$	—
	Net change in unrealized appreciation/depreciation on futures contracts	$	—		$	(7,363,713	)

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Note 10 - Investment Valuation (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block]

	Level 1		Level 2		Level 3		Total
September 30, 2021
Futures contracts(a)	$	68,982,834	$	—	$	—	$	68,982,834
U.S. Treasury bills		—		1,297,922,322		—		1,297,922,322
December 31, 2020
Futures contracts(a)	$	42,452,572	$	—	$	—	$	42,452,572
U.S. Treasury bills		—		814,968,107		—		814,968,107

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Schedules of Investments (Unaudited) - Investments (Details) - USD ($)		Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019
U.S. Treasury bills, fair value		$ 1,297,922,322			$ 814,968,107
Other Assets, Less Liabilities		19,017,273			12,378,513
Net Assets – 100.00%		1,316,939,595	$ 1,359,450,396	$ 1,114,035,126	827,346,620	$ 718,083,734	$ 609,244,207	$ 501,546,756	$ 775,343,105
United States Treasury Bills 0.01% – 0.04% due 10/05/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	153,000,000
U.S. Treasury bills, fair value	[1],[2]	152,999,615
United States Treasury Bills 0.05% – 0.08% Due 1/05/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				53,000,000
U.S. Treasury bills, fair value	[1],[2]				52,999,993
United States Treasury Bills 0.06% – 0.10% Due 1/07/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				112,000,000
U.S. Treasury bills, fair value	[1],[2]				111,999,720
United States Treasury Bills 0.03% – 0.04% due 10/07/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	85,000,000
U.S. Treasury bills, fair value	[1],[2]	84,999,469
United States Treasury Bills 0.07% – 0.08% Due 1/12/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				30,000,000
U.S. Treasury bills, fair value	[1],[2]				29,999,734
United States Treasury Bills 0.04% due 11/02/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	49,000,000
U.S. Treasury bills, fair value	[1],[2]	48,997,454
United States Treasury Bills 0.07% – 0.10% Due 1/14/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				155,000,000
U.S. Treasury bills, fair value	[1],[2]				154,998,062
United States Treasury Bills 0.05% due 11/04/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	12,000,000
U.S. Treasury bills, fair value	[1],[2]	11,999,150
United States Treasury Bills 0.04% due 11/09/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	45,000,000
U.S. Treasury bills, fair value	[1],[2]	44,997,258
United States Treasury Bills 0.07% Due 1/19/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				40,000,000
U.S. Treasury bills, fair value	[1],[2]				39,999,333
United States Treasury Bills 0.03% due 11/16/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	22,000,000
U.S. Treasury bills, fair value	[1],[2]	21,998,805
United States Treasury Bills 0.07% – 0.11% Due 1/21/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				60,000,000
U.S. Treasury bills, fair value	[1],[2]				59,998,725
United States Treasury Bills 0.03% due 11/26/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	48,000,000
U.S. Treasury bills, fair value	[1],[2]	47,997,200
United States Treasury Bills 0.08% – 0.09% Due 1/28/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				50,000,000
U.S. Treasury bills, fair value	[1],[2]				49,998,084
United States Treasury Bills 0.01% – 0.04% due 12/02/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	119,000,000
U.S. Treasury bills, fair value	[1],[2]	118,992,450
United States Treasury Bills 0.07% – 0.09% Due 2/04/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				26,000,000
U.S. Treasury bills, fair value	[1],[2]				25,998,769
United States Treasury Bills 0.04% due 12/07/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	83,000,000
U.S. Treasury bills, fair value	[1],[2]	82,995,521
United States Treasury Bills 0.06% – 0.07% Due 2/09/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				73,000,000
U.S. Treasury bills, fair value	[1],[2]				72,996,715
United States Treasury Bills 0.03% – 0.04% due 12/09/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	113,000,000
U.S. Treasury bills, fair value	[1],[2]	112,993,862
United States Treasury Bills 0.11% Due 2/11/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				75,000,000
U.S. Treasury bills, fair value	[1],[2]				74,995,250
United States Treasury Bills 0.04% due 12/14/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	20,000,000
U.S. Treasury bills, fair value	[1],[2]	19,998,643
United States Treasury Bills 0.07% – 0.11% Due 2/18/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				60,000,000
U.S. Treasury bills, fair value	[1],[2]				59,995,125
United States Treasury Bills 0.03% – 0.04% due 12/16/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	128,000,000
U.S. Treasury bills, fair value	[1],[2]	127,990,272
United States Treasury Bills 0.09% Due 2/25/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				16,000,000
U.S. Treasury bills, fair value	[1],[2]				15,998,440
United States Treasury Bills 0.02% – 0.04% due 12/21/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	135,000,000
U.S. Treasury bills, fair value	[1],[2]	134,991,495
United States Treasury Bills 0.10% Due 3/04/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				10,000,000
U.S. Treasury bills, fair value	[1],[2]				9,998,853
United States Treasury Bills 0.03% due 12/23/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	16,000,000
U.S. Treasury bills, fair value	[1],[2]	15,998,647
United States Treasury Bills 0.07% Due 3/11/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				29,000,000
U.S. Treasury bills, fair value	[1],[2]				28,996,012
United States Treasury Bills 0.03% due 12/28/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	40,000,000
U.S. Treasury bills, fair value	[1],[2]	39,996,089
United States Treasury Bills 0.08% Due 3/23/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				19,000,000
U.S. Treasury bills, fair value	[1],[2]				18,996,912
United States Treasury Bills 0.04% due 12/30/21 [Member]
U.S. Treasury bills, face amount	[1],[2]	65,000,000
U.S. Treasury bills, fair value	[1],[2]	64,993,500
United States Treasury Bills 0.06% Due 4/15/21 [Member]
U.S. Treasury bills, face amount	[1],[2]				7,000,000
U.S. Treasury bills, fair value	[1],[2]				6,998,380
United States Treasury Bills 0.03% due 01/04/22 [Member]
U.S. Treasury bills, face amount	[1],[2]	60,000,000
U.S. Treasury bills, fair value	[1],[2]	59,995,250
United States Treasury Bills 0.03% due 01/06/22 [Member]
U.S. Treasury bills, face amount	[1],[2]	47,000,000
U.S. Treasury bills, fair value	[1],[2]	46,995,572
US Treasury Bill Securities [Member]
U.S. Treasury bills, fair value		1,297,922,322			$ 814,968,107
United States Treasury Bills 0.03% due 01/11/22 [Member]
U.S. Treasury bills, face amount	[1],[2]	8,000,000
U.S. Treasury bills, fair value	[1],[2]	7,999,320
United States Treasury Bills 0.04% due 01/25/22 [Member]
U.S. Treasury bills, face amount	[1],[2]	50,000,000
U.S. Treasury bills, fair value	[1],[2]	$ 49,992,750

[1] A portion of the above U.S. Treasury bills are posted as margin for the Trust's Index Futures positions as described in Note 2D.

[2] Rates shown are discount rates paid at the time of purchase.

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Schedules of Investments (Unaudited) - Investments (Details) (Parentheticals) - USD ($)		Sep. 30, 2021	Dec. 31, 2020
Cost of short-term investments		$ 1,249,728,095	$ 772,661,613
Liabilities percentage of net asset value		1.44%	1.50%
Total percentage of net asset value		100.00%	100.00%
United States Treasury Bills 0.05% – 0.08% Due 1/05/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Jan. 05, 2021
United States Treasury Bills 0.05% – 0.08% Due 1/05/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.05%
United States Treasury Bills 0.05% – 0.08% Due 1/05/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.08%
United States Treasury Bills 0.01% – 0.04% due 10/05/21 [Member]
U.S. Treasury bills, due date	[1],[2]	Oct. 05, 2021
United States Treasury Bills 0.01% – 0.04% due 10/05/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.01%
United States Treasury Bills 0.01% – 0.04% due 10/05/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
United States Treasury Bills 0.06% – 0.10% Due 1/07/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Jan. 07, 2021
United States Treasury Bills 0.06% – 0.10% Due 1/07/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.06%
United States Treasury Bills 0.06% – 0.10% Due 1/07/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.10%
United States Treasury Bills 0.03% – 0.04% due 10/07/21 [Member]
U.S. Treasury bills, due date	[1],[2]	Oct. 07, 2021
United States Treasury Bills 0.03% – 0.04% due 10/07/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
United States Treasury Bills 0.03% – 0.04% due 10/07/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
United States Treasury Bills 0.07% – 0.08% Due 1/12/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Jan. 12, 2021
United States Treasury Bills 0.07% – 0.08% Due 1/12/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.07%
United States Treasury Bills 0.07% – 0.08% Due 1/12/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.08%
United States Treasury Bills 0.04% due 11/02/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
U.S. Treasury bills, due date	[1],[2]	Nov. 02, 2021
United States Treasury Bills 0.07% – 0.10% Due 1/14/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Jan. 14, 2021
United States Treasury Bills 0.07% – 0.10% Due 1/14/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.07%
United States Treasury Bills 0.07% – 0.10% Due 1/14/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.10%
United States Treasury Bills 0.05% due 11/04/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.05%
U.S. Treasury bills, due date	[1],[2]	Nov. 04, 2021
United States Treasury Bills 0.04% due 11/09/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
U.S. Treasury bills, due date	[1],[2]	Nov. 09, 2021
United States Treasury Bills 0.07% Due 1/19/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.07%
U.S. Treasury bills, due date	[1],[2]		Jan. 19, 2021
United States Treasury Bills 0.03% due 11/16/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
U.S. Treasury bills, due date	[1],[2]	Nov. 16, 2021
United States Treasury Bills 0.07% – 0.11% Due 1/21/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Jan. 21, 2021
United States Treasury Bills 0.07% – 0.11% Due 1/21/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.07%
United States Treasury Bills 0.07% – 0.11% Due 1/21/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.11%
United States Treasury Bills 0.03% due 11/26/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
U.S. Treasury bills, due date	[1],[2]	Nov. 26, 2021
United States Treasury Bills 0.08% – 0.09% Due 1/28/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Jan. 28, 2021
United States Treasury Bills 0.08% – 0.09% Due 1/28/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.08%
United States Treasury Bills 0.08% – 0.09% Due 1/28/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.09%
United States Treasury Bills 0.01% – 0.04% due 12/02/21 [Member]
U.S. Treasury bills, due date	[1],[2]	Dec. 02, 2021
United States Treasury Bills 0.01% – 0.04% due 12/02/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.01%
United States Treasury Bills 0.01% – 0.04% due 12/02/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
United States Treasury Bills 0.07% – 0.09% Due 2/04/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Feb. 04, 2021
United States Treasury Bills 0.07% – 0.09% Due 2/04/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.07%
United States Treasury Bills 0.07% – 0.09% Due 2/04/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.09%
United States Treasury Bills 0.04% due 12/07/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
U.S. Treasury bills, due date	[1],[2]	Dec. 07, 2021
United States Treasury Bills 0.06% – 0.07% Due 2/09/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Feb. 09, 2021
United States Treasury Bills 0.06% – 0.07% Due 2/09/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.06%
United States Treasury Bills 0.06% – 0.07% Due 2/09/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.07%
United States Treasury Bills 0.03% – 0.04% due 12/09/21 [Member]
U.S. Treasury bills, due date	[1],[2]	Dec. 09, 2021
United States Treasury Bills 0.03% – 0.04% due 12/09/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
United States Treasury Bills 0.03% – 0.04% due 12/09/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
United States Treasury Bills 0.11% Due 2/11/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.11%
U.S. Treasury bills, due date	[1],[2]		Feb. 11, 2021
United States Treasury Bills 0.04% due 12/14/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
U.S. Treasury bills, due date	[1],[2]	Dec. 14, 2021
United States Treasury Bills 0.07% – 0.11% Due 2/18/21 [Member]
U.S. Treasury bills, due date	[1],[2]		Feb. 18, 2021
United States Treasury Bills 0.07% – 0.11% Due 2/18/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.07%
United States Treasury Bills 0.07% – 0.11% Due 2/18/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.11%
United States Treasury Bills 0.03% – 0.04% due 12/16/21 [Member]
U.S. Treasury bills, due date	[1],[2]	Dec. 16, 2021
United States Treasury Bills 0.03% – 0.04% due 12/16/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
United States Treasury Bills 0.03% – 0.04% due 12/16/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
United States Treasury Bills 0.09% Due 2/25/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.09%
U.S. Treasury bills, due date	[1],[2]		Feb. 25, 2021
United States Treasury Bills 0.02% – 0.04% due 12/21/21 [Member]
U.S. Treasury bills, due date	[1],[2]	Dec. 21, 2021
United States Treasury Bills 0.02% – 0.04% due 12/21/21 [Member] | Minimum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.02%
United States Treasury Bills 0.02% – 0.04% due 12/21/21 [Member] | Maximum [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
United States Treasury Bills 0.10% Due 3/04/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.10%
U.S. Treasury bills, due date	[1],[2]		Mar. 04, 2021
United States Treasury Bills 0.03% due 12/23/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
U.S. Treasury bills, due date	[1],[2]	Dec. 23, 2021
United States Treasury Bills 0.07% Due 3/11/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.07%
U.S. Treasury bills, due date	[1],[2]		Mar. 11, 2021
United States Treasury Bills 0.03% due 12/28/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
U.S. Treasury bills, due date	[1],[2]	Dec. 28, 2021
United States Treasury Bills 0.08% Due 3/23/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.08%
U.S. Treasury bills, due date	[1],[2]		Mar. 23, 2021
United States Treasury Bills 0.04% due 12/30/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
U.S. Treasury bills, due date	[1],[2]	Dec. 30, 2021
United States Treasury Bills 0.06% Due 4/15/21 [Member]
U.S. Treasury bills, effective rate	[1],[2]		0.06%
U.S. Treasury bills, due date	[1],[2]		Apr. 15, 2021
United States Treasury Bills 0.03% due 01/04/22 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
U.S. Treasury bills, due date	[1],[2]	Jan. 04, 2022
US Treasury Bill Securities [Member]
Cost of short-term investments		$ 1,297,924,397	$ 814,949,549
Percentage of net asset value		98.56%	98.50%
United States Treasury Bills 0.03% due 01/06/22 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
U.S. Treasury bills, due date	[1],[2]	Jan. 06, 2022
United States Treasury Bills 0.03% due 01/11/22 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.03%
U.S. Treasury bills, due date	[1],[2]	Jan. 11, 2022
United States Treasury Bills 0.04% due 01/25/22 [Member]
U.S. Treasury bills, effective rate	[1],[2]	0.04%
U.S. Treasury bills, due date	[1],[2]	Jan. 25, 2022

[1] A portion of the above U.S. Treasury bills are posted as margin for the Trust's Index Futures positions as described in Note 2D.

[2] Rates shown are discount rates paid at the time of purchase.

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Schedules of Investments (Unaudited) - Open S&P GSCI ER Index Futures Contracts (Details)	9 Months Ended	12 Months Ended
	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)
Number of contracts	52,757	45,779
Expiration date	Dec. 15, 2021	Mar. 15, 2021
Current notional amount	$ 1,316,397,940	$ 827,249,420
Net unrealized appreciation (depreciation)	$ 68,982,834	$ 42,452,572

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Note 2 - Significant Accounting Policies (Details Textual) - USD ($)		Sep. 30, 2021	Dec. 31, 2020
Deposits with Clearing Organizations and Others, Securities	[1]	$ 48,196,963	$ 42,290,413

[1] Cost of short-term investments held at the broker (restricted): $48,196,302 and $42,287,936, respectively.

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Note 3 - Offering of the Shares (Details Textual)	Sep. 30, 2021 shares
Shares Prescribed Aggregation (in shares)	50,000

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Note 4 - Trust Expenses (Details Textual)	9 Months Ended
	Sep. 30, 2021 USD ($)
Sponsors Fee Annualized Accrual Rate Based on Net Asset Value of Trust	0.75%
Maximum [Member]
Legal Fees Per Year Maximum	$ 100,000

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Note 8 - Financial Highlights - Net Asset Value and Financial Highlights (Details) - $ / shares		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net asset value per Share, beginning of period (in dollars per share)		$ 16.08	$ 10.33	$ 12.30	$ 16.24
Net investment income (loss) (in dollars per share)	[1]	(0.03)	(0.02)	(0.09)	(0.01)
Net realized and unrealized gain (loss) (in dollars per share)	[2]	0.81	0.46	4.65	(5.46)
Net increase (decrease) in net assets from operations (in dollars per share)		0.78	0.44	4.56	(5.47)
Net asset value per Share, end of period (in dollars per share)		$ 16.86	$ 10.77	$ 16.86	$ 10.77
Total return, at net asset value	[3],[4]	4.85%	4.26%	37.07%	(33.68%)
Ratio to average net assets:
Net investment income (loss)	[5]	(0.82%)	(0.79%)	(0.83%)	(0.16%)
Expenses	[5]	0.85%	0.91%	0.86%	0.90%

[1] Based on average Shares outstanding during the period.

[2] The amounts reported for a Share outstanding may not accord with the change in aggregate gains and losses on investments for each period due to the timing of Trust Share transactions in relation to the fluctuating fair values of the Trust's underlying investments.

[3] Based on the change in net asset value of a Share during the period.

[4] Percentage is not annualized.

[5] Percentage is annualized.

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Note 9 - Investing in Index Futures (Details Textual) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
Average Month-End Notional Amount of Derivative Contracts	$ 1,191,513,696	$ 668,432,601

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Note 9 - Investing in Index Futures - Effect of the Futures Contracts, by Risk Exposure Category, on the Statements of Financial Condition (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Receivable for variation margin on open futures contracts	$ 6,183,136	$ 3,335,487
Commodity Contract [Member] | Receivable for Variation Margin on Open Futures Contracts [Member]
Receivable for variation margin on open futures contracts	6,183,136	3,335,487
Commodity Contract [Member] | Payable for Variation Margin on Open Futures Contracts [Member]
Payable for variation margin on open futures contracts	$ 0	$ 0

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Note 9 - Investing in Index Futures - Effect of the Futures Contracts, by Risk Exposure Category, on the Statements of Operations (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Net realized gain (loss) from futures contracts	$ 10,796,107	$ 31,519,147	$ 333,696,632	$ (275,413,702)
Net change in unrealized appreciation/depreciation on futures contracts	51,987,409	(3,320,408)	26,530,264	(7,363,713)
Commodity Contract [Member] | Net Realized Gain Loss from Futures Contracts [Member]
Net realized gain (loss) from futures contracts	10,796,107	31,519,147	333,696,632	(275,413,702)
Commodity Contract [Member] | Net Change in Unrealized Appreciation Depreciation on Futures Contracts [Member]
Net change in unrealized appreciation/depreciation on futures contracts	$ 51,987,409	$ (3,320,408)	$ 26,530,264	$ (7,363,713)

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Note 10 - Investment Valuation - Valuation of the Trust's Investments by the Fair Value Hierarchy (Details) - USD ($)		Sep. 30, 2021	Dec. 31, 2020
Futures [Member]
Investment, fair value	[1]	$ 68,982,834	$ 42,452,572
US Treasury Bill Securities [Member]
Investment, fair value		1,297,922,322	814,968,107
Fair Value, Inputs, Level 1 [Member] | Futures [Member]
Investment, fair value	[1]	68,982,834	42,452,572
Fair Value, Inputs, Level 1 [Member] | US Treasury Bill Securities [Member]
Investment, fair value		0	0
Fair Value, Inputs, Level 2 [Member] | Futures [Member]
Investment, fair value	[1]	0	0
Fair Value, Inputs, Level 2 [Member] | US Treasury Bill Securities [Member]
Investment, fair value		1,297,922,322	814,968,107
Fair Value, Inputs, Level 3 [Member] | Futures [Member]
Investment, fair value	[1]	0	0
Fair Value, Inputs, Level 3 [Member] | US Treasury Bill Securities [Member]
Investment, fair value		$ 0	$ 0

[1] Shown at the unrealized appreciation (depreciation) on the contracts.