Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($) | Mar. 31, 2022 | Dec. 31, 2021 |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 99.30% | | 98.99% | |
United States Treasury Obligations, Value | | $ 21,983,128 | | $ 16,998,245 | |
Affiliated Investments, Value | | 49,720,551 | | 55,491,753 | |
Investments in Securities, Value | | 71,703,679 | | 72,489,998 | |
Investments in Securities, Cost | | $ 71,739,830 | | $ 72,514,938 | |
Affiliated Entity | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 68.85% | | 75.78% | |
Affiliated Investments, Value | | $ 49,720,551 | | $ 55,491,753 | |
Investments in Securities, Cost | | $ 49,750,651 | | $ 55,516,603 | |
U.S. Treasury Bills, 0.170% due April 21, 2022 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 9.70% | | | |
United States Treasury Obligations, Value | [1] | $ 6,999,524 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 7,000,000 | | | |
Investment Interest Rate | [2] | 0.17% | | | |
Investment Maturity Date | [2] | Apr. 21, 2022 | | | |
U.S. Treasury Bills, 0.190% due April 28, 2022 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 6.92% | | | |
United States Treasury Obligations, Value | [1] | $ 4,999,512 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 5,000,000 | | | |
Investment Interest Rate | [2] | 0.19% | | | |
Investment Maturity Date | [2] | Apr. 28, 2022 | | | |
U.S. Treasury Bills, 0.380% due June 9, 2022 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 6.92% | | | |
United States Treasury Obligations, Value | [1] | $ 4,996,425 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 5,000,000 | | | |
Investment Interest Rate | [2] | 0.38% | | | |
Investment Maturity Date | [2] | Jun. 9, 2022 | | | |
U.S. Treasury Bills, 0.380% due July 28, 2022 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 6.91% | | | |
United States Treasury Obligations, Value | [1] | $ 4,987,667 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 5,000,000 | | | |
Investment Interest Rate | [3] | 0.38% | | | |
Investment Maturity Date | [3] | Jul. 28, 2022 | | | |
Restricted for maintenance margin | [3] | $ 21,989,179 | | | |
U.S. Treasury Bills, 0.055% due January 27, 2022 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [4],[5] | | | 9.55% | |
United States Treasury Obligations, Value | [4],[5] | | | $ 6,999,895 | |
United States Treasury Obligations, Principal Value | [4],[5] | | | $ 7,000,000 | |
Investment Interest Rate | [4],[5] | | | 0.055% | |
Investment Maturity Date | [4],[5] | | | Jan. 27, 2022 | |
U.S. Treasury Bills, 0.070% due March 10, 2022 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [4],[5] | | | 4.10% | |
United States Treasury Obligations, Value | [4],[5] | | | $ 2,999,794 | |
United States Treasury Obligations, Principal Value | [4],[5] | | | $ 3,000,000 | |
Investment Interest Rate | [4],[5] | | | 0.07% | |
Investment Maturity Date | [4],[5] | | | Mar. 10, 2022 | |
U.S. Treasury Bills, 0.060% due April 21, 2022 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [4],[5] | | | 9.56% | |
United States Treasury Obligations, Value | [4],[5] | | | $ 6,998,556 | |
United States Treasury Obligations, Principal Value | [4],[5] | | | $ 7,000,000 | |
Investment Interest Rate | [4],[5] | | | 0.06% | |
Investment Maturity Date | [4],[5] | | | Apr. 21, 2022 | |
Restricted for maintenance margin | [4],[5] | | | $ 16,997,600 | |
United States Treasury Obligations [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 30.45% | [1] | 23.21% | [4] |
United States Treasury Obligations, Value | | $ 21,983,128 | [1] | $ 16,998,245 | [4] |
Investments in Securities, Cost | | $ 16,986,300 | | $ 16,998,245 | |
Exchange Traded Fund, Invesco Treasury Collateral ETF | Affiliated Entity | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 10.23% | | 10.10% | [6] |
Affiliated Investments, Value | | $ 7,388,500 | | $ 7,393,750 | [6] |
Affiliated Investments | | 70,000 | | 70,000 | [6] |
Investments in Securities, Cost | [6] | $ 7,418,600 | | $ 7,418,600 | |
Money Market Mutual Fund, Invesco Government & Agency Portfolio, Institutional Class | Affiliated Entity | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 58.62% | | 65.68% | [6],[7] |
Affiliated Investments, Value | | $ 42,332,051 | | $ 48,098,003 | [6],[7] |
Affiliated Investments | | 42,332,051 | | 48,098,003 | [6],[7] |
Investment Interest Rate | [6] | 0.25% | [8] | 0.03% | [7] |
Investments in Securities, Cost | [6] | $ 42,332,051 | [8] | $ 48,098,003 | [7] |
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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 $16,986,300 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[3] | United States Treasury Obligations of $16,986,300 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[4] | 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 | |
[5] | United States Treasury Obligations of $16,997,600 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[6] | 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. | |
[7] | The rate shown is the 7-day SEC standardized yield as of December 31, 2021. | |
[8] | The rate shown is the 7-day SEC standardized yield as of March 31, 2022. | |