Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($) | Jun. 30, 2024 | Dec. 31, 2023 |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 99.84% | | 99.93% | |
United States Treasury Obligations, Value | | $ 29,510,756 | | $ 29,517,982 | |
Total Investments in Securities | | 52,714,486 | | 65,364,155 | |
Investments in Securities, cost | | $ 52,711,404 | | $ 65,341,449 | |
U.S. Treasury Bills, 5.250% due September 5, 2024 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 9.38% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 4,952,273 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 5,000,000 | | | |
Investment Interest Rate | [1],[2] | 5.25% | | | |
Investment Maturity Date | [1],[2] | Sep. 05, 2024 | | | |
U.S. Treasury Bills, 5.240% due October 3, 2024 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 18.68% | | | |
United States Treasury Obligations, Value | [1] | $ 9,865,005 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 10,000,000 | | | |
Investment Interest Rate | [1] | 5.24% | | | |
Investment Maturity Date | [1] | Oct. 03, 2024 | | | |
U.S. Treasury Bills, 5.165% due November 14, 2024 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 18.57% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 9,805,341 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 10,000,000 | | | |
Investment Interest Rate | [1],[2] | 5.165% | | | |
Investment Maturity Date | [1],[2] | Nov. 14, 2024 | | | |
Restricted for maintenance margin | | $ 4,902,500 | | | |
U.S. Treasury Bills, 5.155% due December 5, 2024 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 9.26% | | | |
United States Treasury Obligations, Value | [1] | $ 4,888,137 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 5,000,000 | | | |
Investment Interest Rate | [1] | 5.155% | | | |
Investment Maturity Date | [1] | Dec. 05, 2024 | | | |
U.S. Treasury Bills, 5.250% due March 7, 2024 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3] | | | 7.57% | |
United States Treasury Obligations, Value | [3] | | | $ 4,953,044 | |
United States Treasury Obligations, Principal Value | [3] | | | $ 5,000,000 | |
Investment Interest Rate | [3] | | | 5.25% | |
Investment Maturity Date | [3] | | | Mar. 07, 2024 | |
U.S. Treasury Bills, 5.245% due April 4, 2024 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | | | 15.08% | |
United States Treasury Obligations, Value | [1] | | | $ 9,865,796 | |
United States Treasury Obligations, Principal Value | [1] | | | $ 10,000,000 | |
Investment Interest Rate | [1] | | | 5.245% | |
Investment Maturity Date | [1] | | | Apr. 04, 2024 | |
U.S. Treasury Bills, 5.270% due May 16, 2024 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3],[4] | | | 15% | |
United States Treasury Obligations, Value | [3],[4] | | | $ 9,808,450 | |
United States Treasury Obligations, Principal Value | [3],[4] | | | $ 10,000,000 | |
Investment Interest Rate | [3],[4] | | | 5.27% | |
Investment Maturity Date | [1],[2] | | | May 16, 2024 | |
Restricted for maintenance margin | | | | $ 4,904,000 | |
U.S. Treasury Bills, 5.190% due June 6, 2024 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | | | 7.48% | |
United States Treasury Obligations, Value | [1] | | | $ 4,890,692 | |
United States Treasury Obligations, Principal Value | [1] | | | $ 5,000,000 | |
Investment Interest Rate | [3] | | | 5.19% | |
Investment Maturity Date | [3] | | | Jun. 06, 2024 | |
United State Treasury Obligation [Member] | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 55.89% | [1] | 45.13% | [3] |
United States Treasury Obligations, Value | | $ 29,510,756 | [1] | $ 29,517,982 | [3] |
Investments in Securities, cost | | $ 29,507,674 | [1] | $ 29,495,276 | [3] |
Money Market Mutual Fund - Invesco Government and Agency Portfolio - Institutional Class [Member] | Affiliated Investments [Member] | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 43.95% | [5],[6] | 54.80% | [7],[8] |
Shares | | 23,203,730 | [5],[6] | 35,846,173 | [7],[8] |
Affiliated investments, at value | | $ 23,203,730 | [5],[6] | $ 35,846,173 | [7],[8] |
Investment Interest Rate | | 5.25% | [5],[6] | 4.22% | [7],[8] |
Investments in Securities, cost | | $ 23,203,730 | [5],[6] | $ 35,846,173 | [7],[8] |
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[1] Security may be traded on a discount basis. The interest rate shown represents the discount rate at the most recent auction date of the security prior to period end United States Treasury Obligations of $ 4,902,500 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts Security may be traded on a discount basis. The interest rate shown represents the discount rate at the most recent auction date of the security prior to period end. United States Treasury Obligations of $ 4,904,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. Affiliated issuer. The issuer and/or the Fund is a wholly-owned subsidiary of Invesco Ltd., or is affiliated by having an investment adviser that is under common control of Invesco Ltd. See Note 8. The rate shown is the 7-day SEC standardized yield as of June 30, 2024 . Affiliated issuer. The issuer and/or the Fund is a wholly-owned subsidiary of Invesco Ltd., or is affiliated by having an investment adviser that is under common control of Invesco Ltd. See Note 8. The rate shown is the 7-day SEC standardized yield as of December 31, 2023 . | |