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 | | 77.36% | | 88.21% | |
United States Treasury Obligations, Value | | $ 117,838,203 | | $ 112,005,375 | |
Affiliated investments, Value | | 405,966,227 | | 317,739,851 | |
Investments in Securities, Value | | 523,804,430 | | 429,745,226 | |
Investments in Securities, cost | | $ 523,831,259 | | $ 429,717,441 | |
Affiliated Investments [Member] | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 59.95% | | 65.22% | |
Affiliated investments, Value | | $ 405,966,227 | | $ 317,739,851 | |
Affiliated Investments,Cost | | $ 405,965,437 | | $ 317,713,448 | |
U.S. Treasury Bills, 0.170% due April 21, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 2.22% | | | |
United States Treasury Obligations, Value | [1] | $ 14,998,979 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 15,000,000 | | | |
Investment Interest Rate | [1] | 0.17% | | | |
Investment Maturity Date | [1] | Apr. 21, 2022 | | | |
U.S. Treasury Bills, 0.190% due April 28, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 1.92% | | | |
United States Treasury Obligations, Value | [1] | $ 12,998,730 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 13,000,000 | | | |
Investment Interest Rate | [1] | 0.19% | | | |
Investment Maturity Date | [1] | Apr. 28, 2022 | | | |
U.S. Treasury Bills, 0.440% due May 19, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 3.69% | | | |
United States Treasury Obligations, Value | [1] | $ 24,992,000 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 25,000,000 | | | |
Investment Interest Rate | [1] | 0.44% | | | |
Investment Maturity Date | [1] | May 19, 2022 | | | |
U.S. Treasury Bills, 0.380% due June 9, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 1.77% | | | |
United States Treasury Obligations, Value | [1] | $ 11,991,421 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 12,000,000 | | | |
Investment Interest Rate | [1] | 0.38% | | | |
Investment Maturity Date | [1] | Jun. 9, 2022 | | | |
U.S. Treasury Bills, 0.365% due July 21, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 2.21% | | | |
United States Treasury Obligations, Value | [1] | $ 14,969,417 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 15,000,000 | | | |
Investment Interest Rate | [1] | 0.365% | | | |
Investment Maturity Date | [1] | Jul. 21, 2022 | | | |
U.S. Treasury Bills, 0.380% due July 28, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 1.92% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 12,967,935 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 13,000,000 | | | |
Investment Interest Rate | [1],[2] | 0.38% | | | |
Investment Maturity Date | [1],[2] | Jul. 28, 2022 | | | |
Restricted for maintenance margin | | $ 34,892,500 | | | |
U.S. Treasury Bills, 0.770% due August 18, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 3.68% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 24,919,721 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 25,000,000 | | | |
Investment Interest Rate | [1],[2] | 0.77% | | | |
Investment Maturity Date | [1],[2] | Aug. 18, 2022 | | | |
Exchange-Traded Fund [Member] | Affiliated Investments [Member] | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3] | 5.32% | | 7.40% | |
Affiliated investments, Value | [3] | $ 36,045,325 | | $ 36,070,938 | |
Affiliated Investments, Shares | [3] | 341,500 | | 341,500 | |
Affiliated Investments,Cost | [3] | $ 36,044,535 | | $ 36,044,535 | |
Money Market Funds [Member] | Affiliated Investments [Member] | Invesco Government and Agency Portfolio Institutional Class [Member] | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3] | 54.63% | [4] | 57.82% | [5] |
Affiliated investments, Value | [3] | $ 369,920,902 | [4] | $ 281,668,913 | [5] |
Affiliated Investments, Shares | [3] | 369,920,902 | [4] | 281,668,913 | [5] |
Investment Interest Rate | [3] | 0.25% | [4] | 0.03% | [5] |
Affiliated Investments,Cost | [3] | $ 369,920,902 | [4] | $ 281,668,913 | [5] |
United States Treasury Obligations [Member] | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 17.41% | | 22.99% | |
United States Treasury Obligations, Value | [1] | $ 117,838,203 | | $ 112,005,375 | |
Investments in Securities, cost | [1] | $ 117,865,822 | | $ 112,003,993 | |
U.S. Treasury Bills, 0.040% due January 6, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | | | 5.13% | |
United States Treasury Obligations, Value | [1] | | | $ 25,000,002 | |
United States Treasury Obligations, Principal Value | [1] | | | $ 25,000,000 | |
Investment Interest Rate | [1] | | | 0.04% | |
Investment Maturity Date | [1] | | | Jan. 6, 2022 | |
U.S. Treasury Bills, 0.055% due January 20, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | | | 5.13% | |
United States Treasury Obligations, Value | [1] | | | $ 24,999,911 | |
United States Treasury Obligations, Principal Value | [1] | | | $ 25,000,000 | |
Investment Interest Rate | [1] | | | 0.055% | |
Investment Maturity Date | [1] | | | Jan. 20, 2022 | |
U.S. Treasury Bills, 0.055% due January 27, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[6] | | | 5.13% | |
United States Treasury Obligations, Value | [1],[6] | | | $ 24,999,625 | |
United States Treasury Obligations, Principal Value | [1],[6] | | | $ 25,000,000 | |
Investment Interest Rate | [1],[6] | | | 0.055% | |
Investment Maturity Date | [1],[6] | | | Jan. 27, 2022 | |
Restricted for maintenance margin | | | | $ 31,996,800 | |
U.S. Treasury Bills, 0.050% due February 3, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[6] | | | 5.14% | |
United States Treasury Obligations, Value | [1],[6] | | | $ 25,006,662 | |
United States Treasury Obligations, Principal Value | [1],[6] | | | $ 25,007,200 | |
Investment Interest Rate | [1],[6] | | | 0.05% | |
Investment Maturity Date | [1],[6] | | | Feb. 3, 2022 | |
U.S. Treasury Bills, 0.070% due March 10, 2022 | | | | | |
Schedule Of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[6] | | | 2.46% | |
United States Treasury Obligations, Value | [1],[6] | | | $ 11,999,175 | |
United States Treasury Obligations, Principal Value | [1],[6] | | | $ 12,000,000 | |
Investment Interest Rate | [1],[6] | | | 0.07% | |
Investment Maturity Date | [1],[6] | | | Mar. 10, 2022 | |
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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 $34,892,500 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] | The rate shown is the 7-day SEC standardized yield as of December 31, 2021 | |
[6] | United States Treasury Obligations of $31,996,800 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |