Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($) | Sep. 30, 2021 | Dec. 31, 2020 |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | | 100.17% | 99.78% | |
United States Treasury Obligations, Value | | $ 182,993,964 | $ 119,984,182 | |
Affiliated Investments, Value | | 306,144,450 | 245,409,996 | |
Investments in Securities, Value | | 489,138,414 | 365,394,178 | |
Investments in Securities, Cost | | 489,147,926 | 365,396,641 | |
Restricted for maintenance margin | | $ 26,997,300 | $ 29,997,000 | |
Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | | 62.69% | 67.02% | |
Affiliated Investments, Value | | $ 306,144,450 | $ 245,409,996 | |
Affiliated Investments, at Cost | | $ 306,158,232 | $ 245,419,058 | |
U.S. Treasury Bills, 0.050% due October 7, 2021 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [1] | 4.51% | | |
United States Treasury Obligations, Value | [1] | $ 21,999,902 | | |
United States Treasury Obligations, Principal Value | [1] | $ 22,000,000 | | |
Investment Interest Rate | [1] | 0.05% | | |
Investment Maturity Date | [1] | Oct. 7, 2021 | | |
U.S. Treasury Bills, 0.050% due November 4, 2021 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [1] | 5.12% | | |
United States Treasury Obligations, Value | [1] | $ 24,998,682 | | |
United States Treasury Obligations, Principal Value | [1] | $ 25,000,000 | | |
Investment Interest Rate | [1] | 0.05% | | |
Investment Maturity Date | [1] | Nov. 4, 2021 | | |
U.S. Treasury Bills, 0.045% due December 2, 2021 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [1] | 5.53% | | |
United States Treasury Obligations, Value | [1] | $ 26,998,837 | | |
United States Treasury Obligations, Principal Value | [1] | $ 27,000,000 | | |
Investment Interest Rate | [1] | 0.045% | | |
Investment Maturity Date | [1] | Dec. 2, 2021 | | |
U.S. Treasury Bills, 0.045% due December 9, 2021 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [1] | 3.48% | | |
United States Treasury Obligations, Value | [1] | $ 16,999,340 | | |
United States Treasury Obligations, Principal Value | [1] | $ 17,000,000 | | |
Investment Interest Rate | [1] | 0.045% | | |
Investment Maturity Date | [1] | Dec. 9, 2021 | | |
U.S. Treasury Bills, 0.040% due January 6, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [2] | 5.53% | | |
United States Treasury Obligations, Value | [2] | $ 26,997,978 | | |
United States Treasury Obligations, Principal Value | [2] | $ 27,000,000 | | |
Investment Interest Rate | [2] | 0.04% | | |
Investment Maturity Date | [2] | Jan. 6, 2022 | | |
U.S. Treasury Bills, 0.050% due January 20, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [1] | 4.10% | | |
United States Treasury Obligations, Value | [1] | $ 19,998,037 | | |
United States Treasury Obligations, Principal Value | [1] | $ 20,000,000 | | |
Investment Interest Rate | [1] | 0.05% | | |
Investment Maturity Date | [1] | Jan. 20, 2022 | | |
U.S. Treasury Bills, 0.055% due February 3, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [1] | 5.73% | | |
United States Treasury Obligations, Value | [1] | $ 28,004,210 | | |
United States Treasury Obligations, Principal Value | [1] | $ 28,008,100 | | |
Investment Interest Rate | | 0.055% | | |
Investment Maturity Date | [1] | Feb. 3, 2022 | | |
U.S. Treasury Bills, 0.050% due March 10, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [1] | 3.48% | | |
United States Treasury Obligations, Value | [1] | $ 16,996,978 | | |
United States Treasury Obligations, Principal Value | [1] | $ 17,000,000 | | |
Investment Interest Rate | [1] | 0.05% | | |
Investment Maturity Date | [1] | Mar. 10, 2022 | | |
United States Treasury Obligations [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | | 37.48% | 32.76% | [3] |
United States Treasury Obligations, Value | | $ 182,993,964 | $ 119,984,182 | [3] |
Investments in Securities, Cost | | $ 182,989,694 | $ 119,977,583 | |
Exchange-Traded Fund [Member] | Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [4] | 10.21% | 13.62% | |
Affiliated Investments, Value | [4] | $ 49,871,520 | $ 49,876,240 | |
Affiliated Investments, Shares | [4] | 472,000 | 472,000 | |
Affiliated Investments, at Cost | [4] | $ 49,885,302 | $ 49,885,302 | |
Money Market Mutual Fund - Invesco Government & Agency Portfolio, Institutional Class [Member] | Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [4],[5] | 52.48% | | |
Affiliated Investments, Value | [4],[5] | $ 256,272,930 | | |
Affiliated Investments, Shares | [4],[5] | 256,272,930 | | |
Investment Interest Rate | [4],[5] | 0.03% | | |
Investments in Securities, Cost | [4],[5] | $ 256,272,930 | | |
US Treasury Bills, 0.085% Due February 11, 2021 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [3] | | 27.30% | |
United States Treasury Obligations, Value | [3] | | $ 99,994,722 | |
United States Treasury Obligations, Principal Value | [3] | | $ 100,000,000 | |
Investment Interest Rate | | | 0.085% | |
Investment Maturity Date | | | Feb. 11, 2021 | |
U.S. Treasury Bills, 0.140% due September 9, 2021 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [3] | | 5.46% | |
United States Treasury Obligations, Value | [3] | | $ 19,989,460 | |
United States Treasury Obligations, Principal Value | [3] | | $ 20,000,000 | |
Investment Interest Rate | [6] | | 0.14% | |
Investment Maturity Date | [6] | | Sep. 9, 2021 | |
Money Market Mutual Fund - Invesco Premier U.S. Government Money ETF - Institutional Class [Member] | Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Percentage of Shareholders' Equity | [4],[7] | | 53.40% | |
Affiliated Investments, Value | [4],[7] | | $ 195,533,756 | |
Affiliated Investments, Shares | [4],[7] | | 195,533,756 | |
Investment Interest Rate | [4],[7] | | 0.03% | |
Investments in Securities, Cost | [4],[7] | | $ 195,533,756 | |
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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 $26,997,300 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[3] | 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. | |
[4] | 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. | |
[5] | The rate shown is the 7-day SEC standardized yield as of September 30, 2021 | |
[6] | United States Treasury Obligations of $29,997,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[7] | The rate shown is the 7-day SEC standardized yield as of December 31, 2020. | |