Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($) | Jun. 30, 2022 | Dec. 31, 2021 |
Schedule of Investments [Line Items] | | | | |
Investments in Securities, Cost | | $ 17,027,846 | | $ 18,944,357 |
Percentage of Shareholders' Equity | | 101.90% | | 97.68% |
United States Treasury Obligations, Value | | $ 7,953,250 | | $ 5,999,443 |
Affiliated Investments, Value | | 9,061,866 | | 12,944,971 |
Investments in Securities, Value | | $ 17,015,116 | | 18,944,414 |
U.S. Treasury Bills, 0.860% due July 21, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[2] | 0.86% | | |
Investment Maturity Date | [1],[2] | Jul. 21, 2022 | | |
Restricted for maintenance margin | [1],[2] | $ 6,962,200 | | |
Percentage of Shareholders' Equity | [1],[2] | 17.96% | | |
United States Treasury Obligations, Value | [1],[2] | $ 2,998,348 | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 3,000,000 | | |
U.S. Treasury Bills, 1.250% due October 20, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[2] | 1.25% | | |
Investment Maturity Date | [1],[2] | Oct. 20, 2022 | | |
Percentage of Shareholders' Equity | [1],[2] | 5.95% | | |
United States Treasury Obligations, Value | [1],[2] | $ 994,130 | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 1,000,000 | | |
U.S. Treasury Bills, 1.580% due December 1, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1] | 1.58% | | |
Investment Maturity Date | [1] | Dec. 01, 2022 | | |
Percentage of Shareholders' Equity | [1] | 5.93% | | |
United States Treasury Obligations, Value | [1] | $ 990,655 | | |
United States Treasury Obligations, Principal Value | [1] | $ 1,000,000 | | |
U.S. Treasury Bills, 1.710% due December 8, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[2] | 1.71% | | |
Investment Maturity Date | [1],[2] | Dec. 08, 2022 | | |
Percentage of Shareholders' Equity | [1],[2] | 17.79% | | |
United States Treasury Obligations, Value | [1],[2] | $ 2,970,117 | | |
United States Treasury Obligations, Principal Value | [1],[2] | 3,000,000 | | |
United States Treasury Obligations [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investments in Securities, Cost | [1] | $ 7,965,980 | | $ 5,999,386 |
Percentage of Shareholders' Equity | [1] | 47.63% | | 30.93% |
United States Treasury Obligations, Value | [1] | $ 7,953,250 | | $ 5,999,443 |
Money Market Mutual Fund - Invesco Government & Agency Portfolio - Institutional Class [Member | Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [3],[4] | 1.39% | | |
Investments in Securities, Cost | [3],[4] | $ 9,061,866 | | |
Percentage of Shareholders' Equity | [3],[4] | 54.27% | | |
Affiliated Investments, Value | | $ 9,061,866 | [3],[4] | $ 12,944,971 |
Affiliated Investments, Shares | [3],[4] | 9,061,866 | | |
U.S. Treasury Bills, 0.055% due January 20, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[5] | | | 0.055% |
Investment Maturity Date | [1],[5] | | | Jan. 20, 2022 |
Restricted for maintenance margin | [1],[5] | | | $ 5,999,200 |
Percentage of Shareholders' Equity | [1],[5] | | | 10.31% |
United States Treasury Obligations, Value | [1],[5] | | | $ 1,999,993 |
United States Treasury Obligations, Principal Value | [1],[5] | | | $ 2,000,000 |
U.S. Treasury Bills, 0.070% due March 10, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[5] | | | 0.07% |
Investment Maturity Date | [1],[5] | | | Mar. 10, 2022 |
Percentage of Shareholders' Equity | [1],[5] | | | 10.31% |
United States Treasury Obligations, Value | [1],[5] | | | $ 1,999,862 |
United States Treasury Obligations, Principal Value | [1],[5] | | | $ 2,000,000 |
U.S. Treasury Bills, 0.060% due April 21, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[2] | | | 0.06% |
Investment Maturity Date | [1],[2] | | | Apr. 21, 2022 |
Percentage of Shareholders' Equity | [1],[2] | | | 10.31% |
United States Treasury Obligations, Value | [1],[2] | | | $ 1,999,588 |
United States Treasury Obligations, Principal Value | [1],[2] | | | $ 2,000,000 |
Money Market Mutual Fund - Invesco Government & Agency Portfolio - Institutional Class [Member] | Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [3],[6] | | | 0.03% |
Investments in Securities, Cost | [3],[6] | | | $ 12,944,971 |
Percentage of Shareholders' Equity | [3],[6] | | | 66.75% |
Affiliated Investments, Value | [3],[6] | | | $ 12,944,971 |
Affiliated Investments, Shares | [3],[6] | | | 12,944,971 |
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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.[2]United States Treasury Obligations of $6,962,200 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.[3]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.[4]The rate shown is the 7-day SEC standardized yield as of June 30, 2022.[5]United States Treasury Obligations of $5,999,200 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.[6]The rate shown is the 7-day SEC standardized yield as of December 31, 2021. | |