Schedule of Investments (Unaudited) - Treasury Bills and Affiliated Investments - USD ($) | Mar. 31, 2022 | Dec. 31, 2021 |
Schedule of Investments [Line Items] | | | | |
Investments in Securities, Cost | | $ 527,167,957 | $ 445,058,061 | |
Percentage of Shareholders' Equity | | 103.31% | 102.39% | |
United States Treasury Obligations, Value | | $ 119,804,292 | $ 83,008,558 | |
Affiliated Investments, Value | | 407,156,279 | 361,947,746 | |
Investments in Securities, Value | | 526,960,571 | 444,956,304 | |
Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Affiliated Investments, Cost | | $ 407,290,362 | $ 362,050,622 | |
Percentage of Shareholders' Equity | | 79.82% | 83.28% | |
Affiliated Investments, Value | | $ 407,156,279 | $ 361,947,746 | |
U.S. Treasury Bills, 0.090% due April 7, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | 0.09% | | |
Investment Maturity Date | | Apr. 7, 2022 | | |
Percentage of Shareholders' Equity | | 5.88% | | |
United States Treasury Obligations, Value | | $ 29,999,300 | | |
United States Treasury Obligations, Principal Value | | $ 30,000,000 | | |
U.S. Treasury Bills, 0.360% due June 2, 2021 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | 0.36% | | |
Investment Maturity Date | | Jun. 2, 2022 | | |
Percentage of Shareholders' Equity | | 2.94% | | |
United States Treasury Obligations, Value | | $ 14,991,604 | | |
United States Treasury Obligations, Principal Value | | $ 15,000,000 | | |
U.S. Treasury Bills, 0.220% due July 7, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | 0.22% | | |
Investment Maturity Date | | Jul. 7, 2022 | | |
Percentage of Shareholders' Equity | | 5.87% | | |
United States Treasury Obligations, Value | | $ 29,954,014 | | |
United States Treasury Obligations, Principal Value | | $ 30,000,000 | | |
U.S. Treasury Bills, 0.500% due August 4, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | 0.50% | | |
Investment Maturity Date | | Aug. 4, 2022 | | |
Percentage of Shareholders' Equity | | 5.87% | | |
United States Treasury Obligations, Value | | $ 29,917,344 | | |
United States Treasury Obligations, Principal Value | | $ 30,000,000 | | |
U.S. Treasury Bills, 0.670% due September 1, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | 0.67% | | |
Investment Maturity Date | | Sep. 1, 2022 | | |
Percentage of Shareholders' Equity | | 2.93% | | |
United States Treasury Obligations, Value | | $ 14,942,030 | | |
United States Treasury Obligations, Principal Value | | 15,000,000 | | |
U.S. Treasury Bills, 0.040% due January 6, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | | 0.04% | |
Investment Maturity Date | | | Jan. 6, 2022 | |
Percentage of Shareholders' Equity | [1] | | 7.13% | |
United States Treasury Obligations, Value | [1] | | $ 31,000,003 | |
United States Treasury Obligations, Principal Value | [1] | | $ 31,000,000 | |
U.S. Treasury Bills, 0.050% due January 13, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | | 0.05% | |
Investment Maturity Date | | | Jan. 13, 2022 | |
Percentage of Shareholders' Equity | [1] | | 4.60% | |
United States Treasury Obligations, Value | [1] | | $ 19,999,944 | |
United States Treasury Obligations, Principal Value | [1] | | $ 20,000,000 | |
U.S. Treasury Bills, 0.050% due February 3, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | | 0.05% | |
Investment Maturity Date | | | Feb. 3, 2022 | |
Percentage of Shareholders' Equity | [1] | | 7.38% | |
United States Treasury Obligations, Value | [1] | | $ 32,008,611 | |
United States Treasury Obligations, Principal Value | [1] | | 32,009,300 | |
United States Treasury Obligations [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investments in Securities, Cost | | 119,877,595 | 83,007,439 | |
Restricted for maintenance margin | | $ 119,802,000 | $ 80,991,900 | |
Percentage of Shareholders' Equity | | 23.49% | 19.11% | [2] |
United States Treasury Obligations, Value | | $ 119,804,292 | $ 83,008,558 | [2] |
Exchange-Traded Fund - Invesco Treasury Collateral ETF [Member] | Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Affiliated Investments, Cost | | $ 44,053,438 | $ 44,053,438 | |
Percentage of Shareholders' Equity | | 8.61% | 10.11% | [3] |
Affiliated Investments, Value | | $ 43,919,355 | $ 43,950,562 | [3] |
Affiliated Investments, Shares | | 416,100 | 416,100 | [3] |
Money Market Mutual Fund - Invesco Government and Agency Portfolio - Institutional Class [Member] | Affiliated Investments [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | | 0.25% | 0.03% | |
Affiliated Investments, Cost | | $ 363,236,924 | $ 317,997,184 | |
Percentage of Shareholders' Equity | | 71.21% | 73.17% | [3],[4] |
Affiliated Investments, Value | | $ 363,236,924 | $ 317,997,184 | [3],[4] |
Affiliated Investments, Shares | | 363,236,924 | 317,997,184 | [3],[4] |
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[1] | United States Treasury Obligations of $119,802,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts | |
[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] | Affiliated company. 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 December 31, 2021 | |