Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($) | Mar. 31, 2021 | Dec. 31, 2020 |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 98.34% | | 99.43% | |
United States Treasury Obligations, Value | | $ 29,999,903 | | $ 42,992,257 | |
Affiliated Investments, Value | | 62,560,376 | | 61,205,704 | |
Investments in Securities, Value | | 92,560,279 | | 104,197,961 | |
Investments in Securities, Cost | | $ 92,607,570 | | $ 104,247,241 | |
Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 66.47% | | 58.41% | |
Affiliated Investments, Value | | $ 62,560,376 | | $ 61,205,704 | |
Investments in Securities, Cost | | $ 62,608,826 | | $ 61,256,629 | |
U.S. Treasury Bills, 0.025% due April 8, 2021 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 10.63% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 9,999,995 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 10,000,000 | | | |
Investment Interest Rate | [2] | 0.025% | | | |
Investment Maturity Date | [2] | Apr. 8, 2021 | | | |
U.S. Treasury Bills, 0.030% due April 22, 2021 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 10.62% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 9,999,956 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 10,000,000 | | | |
Investment Interest Rate | [2],[3] | 0.03% | | | |
Investment Maturity Date | [2],[3] | Apr. 22, 2021 | | | |
Restricted for maintenance margin | [2],[3] | $ 29,998,000 | | | |
U.S. Treasury Bills, 0.015% due April 29, 2021 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 10.62% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 9,999,952 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 10,000,000 | | | |
Investment Interest Rate | [1] | 0.015% | | | |
Investment Maturity Date | [1] | Apr. 29, 2021 | | | |
United States Treasury Obligations [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [2] | 31.87% | | 41.02% | |
United States Treasury Obligations, Value | [2] | $ 29,999,903 | | $ 42,992,257 | |
Investments in Securities, Cost | | $ 29,998,744 | | $ 42,990,612 | |
Exchange-Traded Fund - Invesco Treasury Collateral ETF [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [4] | 18.53% | | 16.64% | |
Affiliated Investments, Value | [4] | $ 17,438,025 | | $ 17,435,550 | |
Affiliated Investments | [4] | 165,000 | | 165,000 | |
Investments in Securities, Cost | [4] | $ 17,486,475 | | $ 17,486,475 | |
Money Market Mutual Fund [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Investment Interest Rate | [4] | 0.03% | [5] | 0.03% | [6] |
Investments in Securities, Cost | [4] | $ 45,122,351 | [5] | $ 43,770,154 | [6] |
Money Market Mutual Fund [Member] | Invesco Government & Agency Portfolio, Institutional Class [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [4] | 47.94% | [5] | 41.77% | [6] |
Affiliated Investments, Value | [4] | $ 45,122,351 | [5] | $ 43,770,154 | [6] |
Affiliated Investments | [4] | 45,122,351 | [5] | 43,770,154 | [6] |
U.S. Treasury Bills, 0.080% due March 11, 2021 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [2],[7] | | | 12.40% | |
United States Treasury Obligations, Value | [2],[7] | | | $ 12,998,450 | |
United States Treasury Obligations, Principal Value | [2],[7] | | | $ 13,000,000 | |
Investment Interest Rate | [2],[7] | | | 0.08% | |
Investment Maturity Date | [2],[7] | | | Mar. 11, 2021 | |
U.S. Treasury Bills, 0.090% due April 8, 2021 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [2],[8] | | | 9.54% | |
United States Treasury Obligations, Value | [2],[8] | | | $ 9,998,303 | |
United States Treasury Obligations, Principal Value | [2],[8] | | | $ 10,000,000 | |
Investment Interest Rate | [7] | | | 0.09% | |
Investment Maturity Date | [7] | | | Apr. 8, 2021 | |
U.S. Treasury Bills, 0.090% due April 22, 2021 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [2],[8] | | | 9.54% | |
United States Treasury Obligations, Value | [2],[8] | | | $ 9,997,900 | |
United States Treasury Obligations, Principal Value | [2],[8] | | | $ 10,000,000 | |
Investment Interest Rate | [7] | | | 0.09% | |
Investment Maturity Date | [7] | | | Apr. 22, 2021 | |
U.S. Treasury Bills, 0.095% due April 29, 2021 | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [2],[7] | | | 9.54% | |
United States Treasury Obligations, Value | [2],[7] | | | $ 9,997,604 | |
United States Treasury Obligations, Principal Value | [2],[7] | | | $ 10,000,000 | |
Investment Interest Rate | [7] | | | 0.095% | |
Investment Maturity Date | [7] | | | Apr. 29, 2021 | |
Restricted for maintenance margin | [7] | | | $ 42,988,400 | |
| |
[1] | | |
[2] | 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. | |
[3] | United States Treasury Obligations of $29,998,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[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 March 31, 2021. | |
[6] | The rate shown is the 7-day SEC standardized yield as of December 31, 2020. | |
[7] | United States Treasury Obligations of $42,988,400 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |
[8] | United States Treasury Obligations of $42,988,400 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts | |