iShares S&P GSCI Commodity-Indexed Trust (GSG) 10-Q 4 Aug 23 2023 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2023	Jul. 31, 2023
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	Q2
Document Fiscal Year Focus	2023
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2023
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	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		50,400,000

Statements of Assets and Liabil

Statements of Assets and Liabilities (Unaudited) - USD ($)		Jun. 30, 2023	Dec. 31, 2022
Assets
Cash		$ 3,403,189	$ 5,181,064
Short-term investments, at fair value	[1]	909,582,046	1,100,309,661
Short-term investments held at the broker (restricted), at fair value	[2]	71,026,565	102,037,820
Receivable for variation margin on open futures contracts (Note 9)		9,001,542	14,408,722
Total Assets		993,013,342	1,221,937,267
Liabilities
Sponsor’s fees payable		610,547	827,410
Total Liabilities		610,547	827,410
Commitments and contingent liabilities (Note 7)
Net Assets		$ 992,402,795	$ 1,221,109,857
Shares issued and outstanding (in shares)	[3]	50,900,000	57,550,000
Net asset value per Share (Note 2G) (in dollars per share)		$ 19.50	$ 21.22
[1]Cost of short-term investments: $909,415,903 and $1,099,953,044, respectively.[2]Cost of short-term investments held at the broker (restricted): $71,031,150 and $101,996,781, respectively.[3]No par value, unlimited amount authorized.

Statements of Assets and Liab_2

Statements of Assets and Liabilities (Unaudited) (Parentheticals) - USD ($) $ / shares in Thousands	Jun. 30, 2023	Dec. 31, 2022
Cost of short-term investments	$ 909,415,903	$ 1,099,953,044
Cost of short-term investments held at broker (restricted)	$ 71,031,150	$ 101,996,781
Shares, outstanding (in shares)	50,900,000	57,550,000
Shares, par value (in dollars per share)	$ 0	$ 0

Statements of Operations (Unaud

Statements of Operations (Unaudited) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Investment Income
Interest		$ 11,771,724	$ 2,968,486	$ 24,212,213	$ 3,416,356
Total investment income		11,771,724	2,968,486	24,212,213	3,416,356
Expenses
Sponsor’s fees		1,909,342	4,090,111	4,001,756	7,549,937
Brokerage commissions and fees		221,985	387,291	459,935	796,897
Total expenses		2,131,327	4,477,402	4,461,691	8,346,834
Net Investment income (loss)		9,640,397	(1,508,916)	19,750,522	(4,930,478)
Net Realized and Unrealized Gain (Loss)
Short-term investments		9,643	(4,298)	23,773	(2,959)
Futures contracts		(62,297,247)	104,723,600	(62,900,533)	841,486,838
Net realized gain (loss)		(62,287,604)	104,719,302	(62,876,760)	841,483,879
Net change in unrealized appreciation/depreciation on:
Short-term investments		(36,694)	(722,311)	(236,097)	(690,796)
Futures contracts		20,139,730	(67,121,004)	(52,523,952)	(291,710,432)
Net change in unrealized appreciation/depreciation		20,103,036	(67,843,315)	(52,760,049)	(292,401,228)
Net realized and unrealized gain (loss)		(42,184,568)	36,875,987	(115,636,809)	549,082,651
Net increase (decrease) in net assets resulting from operations		$ (32,544,171)	$ 35,367,071	$ (95,886,287)	$ 544,152,173
Net increase (decrease) in net assets per Share (in dollars per share)	[1]	$ (0.63)	$ 0.39	$ (1.79)	$ 6
[1]Net increase (decrease) in net assets per Share based on average shares outstanding during the period.

Statements of Changes in Net As

Statements of Changes in Net Assets (Unaudited) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2023	Jun. 30, 2022
Net Assets, Beginning of Period	$ 1,080,129,847	$ 1,221,109,857	$ 2,141,840,845	$ 1,431,810,115	$ 1,221,109,857	$ 1,431,810,115
Operations
Net investment gain (loss)	9,640,397	10,110,125	(1,508,916)	(3,421,562)	19,750,522	(4,930,478)
Net realized gain (loss)	(62,287,604)	(589,156)	104,719,302	736,764,577	(62,876,760)	841,483,879
Net change in unrealized appreciation/depreciation	20,103,036	(72,863,085)	(67,843,315)	(224,557,913)	(52,760,049)	(292,401,228)
Net increase (decrease) in net assets resulting from operations	(32,544,171)	(63,342,116)	35,367,071	508,785,102	(95,886,287)	544,152,173
Capital Share Transactions
Contributions for Shares issued	13,609,124	19,639,766	46,891,437	376,347,498
Distributions for Shares redeemed	(68,792,005)	(97,277,660)	(215,009,316)	(175,101,870)
Net increase (decrease) in net assets from capital share transactions	(55,182,881)	(77,637,894)	(168,117,879)	201,245,628
Increase (decrease) in net assets	(87,727,052)	(140,980,010)	(132,750,808)	710,030,730
Net Assets, End of Period	$ 992,402,795	$ 1,080,129,847	$ 2,009,090,037	$ 2,141,840,845	$ 992,402,795	$ 2,009,090,037
Shares issued and redeemed
Shares issued (in shares)					1,650,000	20,450,000
Shares redeemed (in shares)					(8,300,000)	(17,050,000)
Net increase (decrease) in Shares issued and outstanding (in shares)					(6,650,000)	3,400,000

Statements of Cash Flows (Unaud

Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Cash Flows from Operating Activities
Net increase (decrease) in net assets resulting from operations	$ (32,544,171)	$ 35,367,071	$ (95,886,287)	$ 544,152,173
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			(4,288,681,752)	(7,563,484,350)
Sales/maturities of short-term investments			4,534,348,098	7,008,666,792
Accretion of discount			(24,139,800)	(3,416,140)
Net realized (gain) loss on short-term investments	(9,643)	4,298	(23,773)	2,959
Net change in unrealized appreciation/depreciation on short-term investments	36,694	722,311	236,097	690,796
Change in operating assets and liabilities:
Receivable for variation margin on open futures contracts			5,407,180	0
Receivable for interest income			0	(10,890)
Payable for variation margin on open futures contracts			0	61,753,536
Payable for investment securities purchased			0	(89,994,437)
Sponsor’s fees payable			(216,863)	481,133
Net cash provided by (used in) operating activities			131,042,900	(41,158,428)
Cash Flows from Financing Activities
Contributions for Shares issued			33,248,890	423,238,935
Distributions for Shares redeemed			(166,069,665)	(390,111,186)
Net cash provided by (used in) financing activities			(132,820,775)	33,127,749
Net decrease in cash			(1,777,875)	(8,030,679)
Cash
Beginning of period, Unrestricted – cash			5,181,064	41,625,574
End of period, Unrestricted – cash	$ 3,403,189	$ 33,594,895	$ 3,403,189	$ 33,594,895

Schedules of Investments (Unaud

Schedules of Investments (Unaudited)	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Schedule of Investments [Text Block]	Schedules of Investments (Unaudited) At June 30, 2023 December 31, 2022 June 30, 2023 Security Description Face Amount Fair Value U.S. Treasury bills (a)(b) 4.46% 4.97% 7/05/23 $ 100,000,000 $ 99,972,743 4.69% 4.86% 7/06/23 201,000,000 200,917,129 4.96% 4.98% 7/11/23 179,000,000 178,802,205 4.98% 5.21% 7/13/23 105,000,000 104,853,984 5.22% 7/18/23 26,000,000 25,945,590 5.06% 5.09% 7/27/23 43,000,000 42,856,201 5.17% 8/08/23 17,000,000 16,912,748 5.22% 8/10/23 2,000,000 1,989,165 5.20% 8/15/23 36,000,000 35,778,711 5.14% 8/24/23 75,000,000 74,438,833 5.05% 5.15% 9/05/23 165,000,000 163,495,932 5.18% 9/12/23 35,000,000 34,645,370 Total U.S. Treasury bills (Cost: $ 980,447,053 980,608,611 Total Investments – 98.81% 980,608,611 Other Assets, Less Liabilities – 1.19% 11,794,184 Net Assets – 100.00% $ 992,402,795 (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 June 30, 2023, Number of Contracts Expiration Date Current Notional Amount Net Unrealized Appreciation (Depreciation) 35,080 September 18, 2023 $ 990,276,828 $ 7,800,746 December 31, 2022 Security Description Face Amount Fair Value U.S. Treasury bills (a)(b) 3.05% 3.89% 1/03/23 $ 94,000,000 $ 94,000,000 3.37% 3.87% 1/05/23 120,000,000 119,975,767 3.81% 4.01% 1/10/23 80,000,000 79,943,727 3.81% 1/12/23 35,000,000 34,969,615 3.80% 4.10% 1/17/23 170,000,000 169,756,793 3.56% 3.86% 1/19/23 71,000,000 70,885,769 3.68% 4.19% 1/24/23 255,000,000 254,428,687 3.72% 3.96% 1/26/23 68,000,000 67,831,414 4.09% 1/31/23 60,000,000 59,816,134 3.99% 4.01% 2/07/23 81,000,000 80,692,100 4.04% 2/14/23 6,000,000 5,971,795 4.24% 2/16/23 45,000,000 44,776,219 4.22% 2/21/23 60,000,000 59,660,552 3.97% 2/23/23 60,000,000 59,638,909 Total U.S. Treasury bills (Cost: $ 1,201,949,825 1,202,347,481 Total Investments – 98.46% 1,202,347,481 Other Assets, Less Liabilities – 1.54% 18,762,376 Net Assets – 100.00% $ 1,221,109,857 (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, 2022, Number of Contracts Expiration Date Current Notional Amount Net Unrealized Appreciation (Depreciation) 38,848 March 15, 2023 $ 1,215,724,851 $ 60,324,698

Note 1 - Organization

Note 1 - Organization	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Business Description and Basis of Presentation [Text Block]	1 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 July 10, 2006. BlackRock Institutional Trust Company, N.A. is the trustee of the Trust (the “Trustee”). The Trust is governed by the Fourth Amended and Restated Trust Agreement, dated as of March 31, 2022 ( 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 not 10 December 31, 2022, February 23, 2023. 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, not not 1940,

Note 2 - Significant Accounting

Note 2 - Significant Accounting Policies	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2 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 not 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 C. Cash The Trust considers cash as currencies deposited in one 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 As of June 30, 2023 December 31, 2022, 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 not The Sponsor has analyzed the tax positions as of June 30, 2023, not 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 2 3 4:00 4:00 H. Distributions Interest and distributions received by the Trust on its assets may no

Note 3 - Offering of the Shares

Note 3 - Offering of the Shares	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Equity [Text Block]	3 Shares are issued and redeemed continuously in one may not may 2:40 one 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

Note 4 - Trust Expenses

Note 4 - Trust Expenses	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Expenses [Text Block]	4 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 2 3 4 5 6 7 8 March 31, 2022 may not

Note 5 - Related Parties

Note 5 - Related Parties	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	5 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

Note 6 - Indemnification

Note 6 - Indemnification	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Indemnification [Text Block]	6 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 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, 1 2 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, 1 2

Note 7 - Commitments and Contin

Note 7 - Commitments and Contingent Liabilities	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	7 In the normal course of business, the Trust may may not

Note 8 - Financial Highlights

Note 8 - Financial Highlights	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Financial Highlights [Text Block]	8 The following financial highlights relate to investment performance and operations for a Share outstanding for the three six June 30, 2023 2022. Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Net asset value per Share, beginning of period $ 20.11 $ 22.69 $ 21.22 $ 17.10 Net investment income (loss) (a) 0.19 (0.02 ) 0.37 (0.05 ) Net realized and unrealized gain (loss) (b) (0.80 ) 0.38 (2.09 ) 6.00 Net increase (decrease) in net assets from operations (0.61 ) 0.36 (1.72 ) 5.95 Net asset value per Share, end of period $ 19.50 $ 23.05 $ 19.50 $ 23.05 Total return, at net asset value (c)(d) (3.03 )% 1.59 % (8.11 )% 34.80 % Ratio to average net assets: Net investment income (loss) (e) 3.79 % (0.28 )% 3.71 % (0.49 )% Expenses (e) 0.84 % 0.82 % 0.84 % 0.83 % (a) Based on average Shares outstanding during the period. (b) The amounts reported for a Share outstanding may not (c) Based on the change in net asset value of a Share during the period. (d) Percentage is not (e) Percentage is annualized.

Note 9 - Investing in Index Fut

Note 9 - Investing in Index Futures	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	9 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 six June 30, 2023 December 31, 2022, The following table shows the variation margin on open futures contracts, by risk exposure category, on the Statements of Assets and Liabilities as of June 30, 2023 December 31, 2022: Asset Derivatives Fair Value Liability Derivatives Fair Value June 30, 2023 Commodity contracts Receivable for variation margin on open futures contracts $ 9,001,542 Payable for variation margin on open futures contracts $ — December 31, 2022 Commodity contracts Receivable for variation margin on open futures contracts $ 14,408,722 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 six June 30, 2023 2022: Statements of Operations Location Net Realized Gain (Loss) Net Change in Unrealized Appreciation/Depreciation Three Months Ended June 30, 2023 Commodity contracts Net realized gain (loss) from futures contracts $ (62,297,247 ) $ — Net change in unrealized appreciation/depreciation on futures contracts — 20,139,730 Three Months Ended June 30, 2022 Commodity contracts Net realized gain (loss) from futures contracts $ 104,723,600 $ — Net change in unrealized appreciation/depreciation on futures contracts — (67,121,004 ) Six Months Ended June 30, 2023 Commodity contracts Net realized gain (loss) from futures contracts $ (62,900,533 ) $ — Net change in unrealized appreciation/depreciation on futures contracts (52,523,952 ) Six Months Ended June 30, 2022 Commodity contracts Net realized gain (loss) from futures contracts $ 841,486,838 $ — Net change in unrealized appreciation/depreciation on futures contracts — (291,710,432 )

Note 10 - Investment Valuation

Note 10 - Investment Valuation	6 Months Ended
	Jun. 30, 2023
Notes to Financial Statements
Fair Value Disclosures [Text Block]	10 FASB Accounting Standards Codification Topic 820, Fair Value Measurements and Disclosures 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 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 Various inputs are used in determining the fair value of financial instruments. Inputs may may three three Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities; Level 2 Inputs other than quoted prices included within Level 1 not 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 June 30, 2023 December 31, 2022: Level 1 Level 2 Level 3 Total June 30, 2023 Futures contracts (a) $ 7,800,746 $ — $ — $ 7,800,746 U.S. Treasury bills — 980,608,611 — 980,608,611 December 31, 2022 Futures contracts (a) $ 60,324,698 $ — $ — $ 60,324,698 U.S. Treasury bills — 1,202,347,481 — 1,202,347,481 (a) Shown at the unrealized appreciation (depreciation) on the contracts.

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2023
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 not 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
Cash and Cash Equivalents, Policy [Policy Text Block]	C. Cash The Trust considers cash as currencies deposited in one
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 As of June 30, 2023 December 31, 2022,
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 not The Sponsor has analyzed the tax positions as of June 30, 2023, not
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 2 3 4:00 4:00
Distributions [Policy Text Block]	H. Distributions Interest and distributions received by the Trust on its assets may no

Schedules of Investments (Una_2

Schedules of Investments (Unaudited) (Tables)	6 Months Ended
	Jun. 30, 2023
Notes Tables
Investment [Table Text Block]	Security Description Face Amount Fair Value U.S. Treasury bills (a)(b) 4.46% 4.97% 7/05/23 $ 100,000,000 $ 99,972,743 4.69% 4.86% 7/06/23 201,000,000 200,917,129 4.96% 4.98% 7/11/23 179,000,000 178,802,205 4.98% 5.21% 7/13/23 105,000,000 104,853,984 5.22% 7/18/23 26,000,000 25,945,590 5.06% 5.09% 7/27/23 43,000,000 42,856,201 5.17% 8/08/23 17,000,000 16,912,748 5.22% 8/10/23 2,000,000 1,989,165 5.20% 8/15/23 36,000,000 35,778,711 5.14% 8/24/23 75,000,000 74,438,833 5.05% 5.15% 9/05/23 165,000,000 163,495,932 5.18% 9/12/23 35,000,000 34,645,370 Total U.S. Treasury bills (Cost: $ 980,447,053 980,608,611 Total Investments – 98.81% 980,608,611 Other Assets, Less Liabilities – 1.19% 11,794,184 Net Assets – 100.00% $ 992,402,795 Security Description Face Amount Fair Value U.S. Treasury bills (a)(b) 3.05% 3.89% 1/03/23 $ 94,000,000 $ 94,000,000 3.37% 3.87% 1/05/23 120,000,000 119,975,767 3.81% 4.01% 1/10/23 80,000,000 79,943,727 3.81% 1/12/23 35,000,000 34,969,615 3.80% 4.10% 1/17/23 170,000,000 169,756,793 3.56% 3.86% 1/19/23 71,000,000 70,885,769 3.68% 4.19% 1/24/23 255,000,000 254,428,687 3.72% 3.96% 1/26/23 68,000,000 67,831,414 4.09% 1/31/23 60,000,000 59,816,134 3.99% 4.01% 2/07/23 81,000,000 80,692,100 4.04% 2/14/23 6,000,000 5,971,795 4.24% 2/16/23 45,000,000 44,776,219 4.22% 2/21/23 60,000,000 59,660,552 3.97% 2/23/23 60,000,000 59,638,909 Total U.S. Treasury bills (Cost: $ 1,201,949,825 1,202,347,481 Total Investments – 98.46% 1,202,347,481 Other Assets, Less Liabilities – 1.54% 18,762,376 Net Assets – 100.00% $ 1,221,109,857
Schedule of Derivative Instruments [Table Text Block]	Number of Contracts Expiration Date Current Notional Amount Net Unrealized Appreciation (Depreciation) 35,080 September 18, 2023 $ 990,276,828 $ 7,800,746 Number of Contracts Expiration Date Current Notional Amount Net Unrealized Appreciation (Depreciation) 38,848 March 15, 2023 $ 1,215,724,851 $ 60,324,698

Note 8 - Financial Highlights (

Note 8 - Financial Highlights (Tables)	6 Months Ended
	Jun. 30, 2023
Notes Tables
Financial Highlights [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Net asset value per Share, beginning of period $ 20.11 $ 22.69 $ 21.22 $ 17.10 Net investment income (loss) (a) 0.19 (0.02 ) 0.37 (0.05 ) Net realized and unrealized gain (loss) (b) (0.80 ) 0.38 (2.09 ) 6.00 Net increase (decrease) in net assets from operations (0.61 ) 0.36 (1.72 ) 5.95 Net asset value per Share, end of period $ 19.50 $ 23.05 $ 19.50 $ 23.05 Total return, at net asset value (c)(d) (3.03 )% 1.59 % (8.11 )% 34.80 % Ratio to average net assets: Net investment income (loss) (e) 3.79 % (0.28 )% 3.71 % (0.49 )% Expenses (e) 0.84 % 0.82 % 0.84 % 0.83 %

Note 9 - Investing in Index F_2

Note 9 - Investing in Index Futures (Tables)	6 Months Ended
	Jun. 30, 2023
Notes Tables
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]	Asset Derivatives Fair Value Liability Derivatives Fair Value June 30, 2023 Commodity contracts Receivable for variation margin on open futures contracts $ 9,001,542 Payable for variation margin on open futures contracts $ — December 31, 2022 Commodity contracts Receivable for variation margin on open futures contracts $ 14,408,722 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 June 30, 2023 Commodity contracts Net realized gain (loss) from futures contracts $ (62,297,247 ) $ — Net change in unrealized appreciation/depreciation on futures contracts — 20,139,730 Three Months Ended June 30, 2022 Commodity contracts Net realized gain (loss) from futures contracts $ 104,723,600 $ — Net change in unrealized appreciation/depreciation on futures contracts — (67,121,004 ) Six Months Ended June 30, 2023 Commodity contracts Net realized gain (loss) from futures contracts $ (62,900,533 ) $ — Net change in unrealized appreciation/depreciation on futures contracts (52,523,952 ) Six Months Ended June 30, 2022 Commodity contracts Net realized gain (loss) from futures contracts $ 841,486,838 $ — Net change in unrealized appreciation/depreciation on futures contracts — (291,710,432 )

Note 10 - Investment Valuation

Note 10 - Investment Valuation (Tables)	6 Months Ended
	Jun. 30, 2023
Notes Tables
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block]	Level 1 Level 2 Level 3 Total June 30, 2023 Futures contracts (a) $ 7,800,746 $ — $ — $ 7,800,746 U.S. Treasury bills — 980,608,611 — 980,608,611 December 31, 2022 Futures contracts (a) $ 60,324,698 $ — $ — $ 60,324,698 U.S. Treasury bills — 1,202,347,481 — 1,202,347,481

Schedules of Investments (Una_3

Schedules of Investments (Unaudited) - Investments (Details) - USD ($)		Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Total U.S. Treasury bills and notes		$ 980,608,611		$ 1,202,347,481
Other Assets, Less Liabilities		11,794,184		18,762,376
Net Assets – 100.00%		992,402,795	$ 1,080,129,847	1,221,109,857	$ 2,009,090,037	$ 2,141,840,845	$ 1,431,810,115
United States Treasury Bills 4.46% – 4.97% due 7/05/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	100,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	99,972,743
United States Treasury Bills 3.05% – 3.89% due 1/03/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			94,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			94,000,000
United States Treasury Bills 4.69% – 4.86% due 7/06/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	201,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	200,917,129
United States Treasury Bills 3.37% – 3.87% due 1/05/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			120,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			119,975,767
United States Treasury Bills 4.96% – 4.98% due 7/11/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	179,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	178,802,205
United States Treasury Bills 3.81% – 4.01% due 1/10/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			80,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			79,943,727
United States Treasury Bills 4.98% – 5.21% due 7/13/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	105,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	104,853,984
United States Treasury Bills 3.81% due 1/12/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			35,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			34,969,615
United States Treasury Bills 3.80% – 4.10% due 1/17/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			170,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			169,756,793
United States Treasury Bills 5.22% due 7/18/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	26,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	25,945,590
United States Treasury Bills 3.56% – 3.86% due 1/19/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			71,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			70,885,769
United States Treasury Bills 5.06% – 5.19% due 7/27/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	43,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	42,856,201
United States Treasury Bills 3.68% – 4.19% due 1/24/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			255,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			254,428,687
United States Treasury Bills 5.17% due 8/08/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	17,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	16,912,748
United States Treasury Bills 5.22% due 8/10/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	2,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	1,989,165
United States Treasury Bills 3.72% – 3.96% due 1/26/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			68,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			67,831,414
United States Treasury Bills 5.20% due 8/15/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	36,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	35,778,711
United States Treasury Bills 4.09% due 1/31/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			60,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			59,816,134
United States Treasury Bills 5.14% due 8/24/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	75,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	74,438,833
United States Treasury Bills 3.99% – 4.01% due 2/07/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			81,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			80,692,100
United States Treasury Bills 5.05% – 5.15% due 9/05/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	165,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	163,495,932
United States Treasury Bills 4.04% due 2/14/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			6,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			5,971,795
United States Treasury Bills 4.24% due 2/16/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			45,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			44,776,219
United States Treasury Bills 5.18% due 9/12/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]	35,000,000
U.S. Treasury bills and notes, fair value	[1],[2]	34,645,370
United States Treasury Bills 4.22% due 2/21/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			60,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			59,660,552
United States Treasury Bills 3.97% due 2/23/23 [Member]
U.S. Treasury bills and notes, face amount	[1],[2]			60,000,000
U.S. Treasury bills and notes, fair value	[1],[2]			59,638,909
US Treasury Bill Securities [Member]
Total U.S. Treasury bills and notes		$ 980,608,611		$ 1,202,347,481
[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.

Schedules of Investments (Una_4

Schedules of Investments (Unaudited) - Investments (Details) (Parentheticals) - USD ($)		Jun. 30, 2023	Dec. 31, 2022
Cost of short-term investments		$ 909,415,903	$ 1,099,953,044
Liabilities percentage of net asset value		1.19%	1.54%
Total percentage of net asset value		100%	100%
United States Treasury Bills 4.46% – 4.97% due 7/05/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]	Jul. 05, 2023
United States Treasury Bills 4.46% – 4.97% due 7/05/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	4.46%
United States Treasury Bills 4.46% – 4.97% due 7/05/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	4.97%
United States Treasury Bills 3.05% – 3.89% due 1/03/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 01, 2023
United States Treasury Bills 3.05% – 3.89% due 1/03/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.05%
United States Treasury Bills 3.05% – 3.89% due 1/03/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.89%
United States Treasury Bills 4.69% – 4.86% due 7/06/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]	Jul. 06, 2023
United States Treasury Bills 4.69% – 4.86% due 7/06/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	4.69%
United States Treasury Bills 4.69% – 4.86% due 7/06/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	4.86%
United States Treasury Bills 3.37% – 3.87% due 1/05/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 05, 2023
United States Treasury Bills 3.37% – 3.87% due 1/05/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.37%
United States Treasury Bills 3.37% – 3.87% due 1/05/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.87%
United States Treasury Bills 4.96% – 4.98% due 7/11/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]	Jul. 11, 2023
United States Treasury Bills 4.96% – 4.98% due 7/11/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	4.96%
United States Treasury Bills 4.96% – 4.98% due 7/11/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	4.98%
United States Treasury Bills 3.81% – 4.01% due 1/10/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 10, 2023
United States Treasury Bills 3.81% – 4.01% due 1/10/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.81%
United States Treasury Bills 3.81% – 4.01% due 1/10/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		4.01%
United States Treasury Bills 4.98% – 5.21% due 7/13/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]	Jul. 13, 2023
United States Treasury Bills 4.98% – 5.21% due 7/13/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	4.98%
United States Treasury Bills 4.98% – 5.21% due 7/13/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.21%
United States Treasury Bills 3.81% due 1/12/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.81%
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 12, 2023
United States Treasury Bills 3.80% – 4.10% due 1/17/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 17, 2023
United States Treasury Bills 3.80% – 4.10% due 1/17/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.80%
United States Treasury Bills 3.80% – 4.10% due 1/17/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		4.10%
United States Treasury Bills 5.22% due 7/18/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.22%
U.S. Treasury bills and notes, due date	[1],[2]	Jul. 18, 2023
United States Treasury Bills 3.56% – 3.86% due 1/19/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 19, 2023
United States Treasury Bills 3.56% – 3.86% due 1/19/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.56%
United States Treasury Bills 3.56% – 3.86% due 1/19/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.86%
United States Treasury Bills 5.06% – 5.19% due 7/27/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]	Jul. 27, 2023
United States Treasury Bills 5.06% – 5.19% due 7/27/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.06%
United States Treasury Bills 5.06% – 5.19% due 7/27/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.09%
United States Treasury Bills 3.68% – 4.19% due 1/24/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 24, 2023
United States Treasury Bills 3.68% – 4.19% due 1/24/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.68%
United States Treasury Bills 3.68% – 4.19% due 1/24/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		4.19%
United States Treasury Bills 5.17% due 8/08/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.17%
U.S. Treasury bills and notes, due date	[1],[2]	Aug. 08, 2023
United States Treasury Bills 5.22% due 8/10/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.22%
U.S. Treasury bills and notes, due date	[1],[2]	Aug. 10, 2023
United States Treasury Bills 3.72% – 3.96% due 1/26/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 26, 2023
United States Treasury Bills 3.72% – 3.96% due 1/26/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.72%
United States Treasury Bills 3.72% – 3.96% due 1/26/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.96%
United States Treasury Bills 5.20% due 8/15/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.20%
U.S. Treasury bills and notes, due date	[1],[2]	Aug. 15, 2023
United States Treasury Bills 4.09% due 1/31/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		4.09%
U.S. Treasury bills and notes, due date	[1],[2]		Jan. 31, 2023
United States Treasury Bills 5.14% due 8/24/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.14%
U.S. Treasury bills and notes, due date	[1],[2]	Aug. 24, 2023
United States Treasury Bills 3.99% – 4.01% due 2/07/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]		Feb. 07, 2023
United States Treasury Bills 3.99% – 4.01% due 2/07/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.99%
United States Treasury Bills 3.99% – 4.01% due 2/07/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		4.01%
United States Treasury Bills 5.05% – 5.15% due 9/05/23 [Member]
U.S. Treasury bills and notes, due date	[1],[2]	Sep. 05, 2023
United States Treasury Bills 5.05% – 5.15% due 9/05/23 [Member] | Minimum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.05%
United States Treasury Bills 5.05% – 5.15% due 9/05/23 [Member] | Maximum [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.15%
United States Treasury Bills 4.04% due 2/14/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		4.04%
U.S. Treasury bills and notes, due date	[1],[2]		Feb. 14, 2023
United States Treasury Bills 4.24% due 2/16/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		4.24%
U.S. Treasury bills and notes, due date	[1],[2]		Feb. 16, 2023
United States Treasury Bills 5.18% due 9/12/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]	5.18%
U.S. Treasury bills and notes, due date	[1],[2]	Sep. 12, 2023
United States Treasury Bills 4.22% due 2/21/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		4.22%
U.S. Treasury bills and notes, due date	[1],[2]		Feb. 21, 2023
US Treasury Bill Securities [Member]
Cost of short-term investments		$ 980,447,053	$ 1,201,949,825
Percentage of net asset value		98.81%	98.46%
United States Treasury Bills 3.97% due 2/23/23 [Member]
U.S. Treasury bills and notes, effective rate	[1],[2]		3.97%
U.S. Treasury bills and notes, due date	[1],[2]		Feb. 23, 2023
[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.

Schedules of Investments (Una_5

Schedules of Investments (Unaudited) - Open S&P GSCI ER Index Futures Contracts (Details)	6 Months Ended	12 Months Ended
	Jun. 30, 2023 USD ($)	Dec. 31, 2022 USD ($)
Number of contracts	35,080	38,848
Expiration date	Sep. 18, 2023	Mar. 15, 2023
Current notional amount	$ 990,276,828	$ 1,215,724,851
Net unrealized appreciation (depreciation)	$ 7,800,746	$ 60,324,698

Note 2 - Significant Accounti_2

Note 2 - Significant Accounting Policies (Details Textual) - USD ($)		Jun. 30, 2023	Dec. 31, 2022
Deposits with Clearing Organizations and Others, Securities	[1]	$ 71,026,565	$ 102,037,820
[1]Cost of short-term investments held at the broker (restricted): $71,031,150 and $101,996,781, respectively.

Note 3 - Offering of the Shar_2

Note 3 - Offering of the Shares (Details Textual)	Jun. 30, 2023 shares
Shares Prescribed Aggregation (in shares)	50,000

Note 4 - Trust Expenses (Detail

Note 4 - Trust Expenses (Details Textual) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2021
Sponsors Fee Annualized Accrual Rate Based on Net Asset Value of Trust	0.75%
Maximum [Member]
Legal Fees Per Year Maximum	$ 500,000	$ 100,000

Note 8 - Financial Highlights -

Note 8 - Financial Highlights - Net Asset Value and Financial Highlights (Details) - $ / shares		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net asset value per Share, beginning of period (in dollars per share)		$ 20.11	$ 22.69	$ 21.22	$ 17.10
Net investment income (loss) (in dollars per share)	[1]	0.19	(0.02)	0.37	(0.05)
Net realized and unrealized gain (loss) (in dollars per share)	[2]	(0.80)	0.38	(2.09)	6
Net increase (decrease) in net assets from operations (in dollars per share)		(0.61)	0.36	(1.72)	5.95
Net asset value per Share, end of period (in dollars per share)		$ 19.50	$ 23.05	$ 19.50	$ 23.05
Total return, at net asset value	[3],[4]	(3.03%)	1.59%	(8.11%)	34.80%
Ratio to average net assets:
Net investment income (loss)	[5]	3.79%	(0.28%)	3.71%	(0.49%)
Expenses	[5]	0.84%	0.82%	0.84%	0.83%
[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.

Note 9 - Investing in Index F_3

Note 9 - Investing in Index Futures (Details Textual) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2023	Dec. 31, 2022
Average Month-End Notional Amount of Derivative Contracts	$ 1,081,268,844	$ 1,745,238,003

Note 9 - Investing in Index F_4

Note 9 - Investing in Index Futures - Effect of the Futures Contracts, by Risk Exposure Category, on the Statements of Financial Condition (Details) - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Receivable for variation margin on open futures contracts	$ 9,001,542	$ 14,408,722
Commodity Contract [Member] | Receivable for Variation Margin on Open Futures Contracts [Member]
Receivable for variation margin on open futures contracts	9,001,542	14,408,722
Commodity Contract [Member] | Payable for Variation Margin on Open Futures Contracts [Member]
Payable for variation margin on open futures contracts	$ 0	$ 0

Note 9 - Investing in Index F_5

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		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Net realized gain (loss) from futures contracts	$ (62,297,247)	$ 104,723,600	$ (62,900,533)	$ 841,486,838
Net change in unrealized appreciation/depreciation on futures contracts	20,139,730	(67,121,004)	(52,523,952)	(291,710,432)
Commodity Contract [Member] | Net Realized Gain Loss from Futures Contracts [Member]
Net realized gain (loss) from futures contracts	(62,297,247)	104,723,600	(62,900,533)	841,486,838
Commodity Contract [Member] | Net Change in Unrealized Appreciation Depreciation on Futures Contracts [Member]
Net change in unrealized appreciation/depreciation on futures contracts	$ 20,139,730	$ (67,121,004)	$ (52,523,952)	$ (291,710,432)

Note 10 - Investment Valuatio_2

Note 10 - Investment Valuation - Valuation of the Trust's Investments by the Fair Value Hierarchy (Details) - USD ($)		Jun. 30, 2023	Dec. 31, 2022
Futures [Member]
Investment, fair value	[1]	$ 7,800,746	$ 60,324,698
US Treasury Bill Securities [Member]
Investment, fair value		980,608,611	1,202,347,481
Fair Value, Inputs, Level 1 [Member] | Futures [Member]
Investment, fair value	[1]	7,800,746	60,324,698
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		980,608,611	1,202,347,481
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.