Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($) | Mar. 31, 2022 | Dec. 31, 2021 |
Schedule of Investments [Line Items] | | | | |
Investments in Securities, Cost | | $ 20,796,298 | | $ 18,944,357 |
Percentage of Shareholders' Equity | | 99.98% | | 97.68% |
United States Treasury Obligations, Value | | $ 7,991,602 | | $ 5,999,443 |
Affiliated Investments, Value | | 12,801,929 | | 12,944,971 |
Investments in Securities, Value | | $ 20,793,531 | | 18,944,414 |
U.S. Treasury Bills, 0.170% due April 21, 2022 [Member] | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[2] | 0.17% | | |
Investment Maturity Date | [1],[2] | Apr. 21, 2022 | | |
Restricted for maintenance margin | [1],[2] | $ 7,991,400 | | |
Percentage of Shareholders' Equity | [1],[2] | 9.62% | | |
United States Treasury Obligations, Value | [1],[2] | $ 1,999,864 | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 2,000,000 | | |
U.S. Treasury Bills, 0.380% due June 9, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[2] | 0.38% | | |
Investment Maturity Date | [1],[2] | Jun. 9, 2022 | | |
Percentage of Shareholders' Equity | [1],[2] | 14.42% | | |
United States Treasury Obligations, Value | [1],[2] | $ 2,997,855 | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 3,000,000 | | |
U.S. Treasury Bills, 0.365% due July 21, 2022 | | | | |
Schedule of Investments [Line Items] | | | | |
Investment Interest Rate | [1],[2] | 0.365% | | |
Investment Maturity Date | [1],[2] | Jul. 21, 2022 | | |
Percentage of Shareholders' Equity | [1],[2] | 14.39% | | |
United States Treasury Obligations, Value | [1],[2] | $ 2,993,883 | | |
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] | $ 7,994,369 | | $ 5,999,386 |
Percentage of Shareholders' Equity | [1] | 38.43% | | 30.93% |
United States Treasury Obligations, Value | [1] | $ 7,991,602 | | $ 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] | 0.25% | | |
Investments in Securities, Cost | [3],[4] | $ 12,801,929 | | |
Percentage of Shareholders' Equity | [3],[4] | 61.55% | | |
Affiliated Investments, Value | | $ 12,801,929 | [3],[4] | $ 12,944,971 |
Affiliated Investments, Shares | [3],[4] | 12,801,929 | | |
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 |
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 |
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 |
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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 $7,991,400 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 March 31, 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. | |