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 | | 98.37% | | 99.40% | |
United States Treasury Obligations, Value | | $ 40,996,861 | | $ 54,989,124 | |
Affiliated investments, at value (cost $71,206,864 and $86,092,194, respectively) | | 71,158,414 | | 86,041,269 | |
Investments in Securities, Value | | 112,155,275 | | 141,030,393 | |
Investments in Securities, Cost | | $ 112,199,221 | | $ 141,078,285 | |
Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 62.41% | | 60.64% | |
Affiliated investments, at value (cost $71,206,864 and $86,092,194, respectively) | | $ 71,158,414 | | $ 86,041,269 | |
Investments in Securities, Cost | | $ 71,206,864 | | $ 86,092,194 | |
U.S. Treasury Bills, 0.045% due June 10, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 7.02% | | | |
United States Treasury Obligations, Value | [1] | $ 7,999,821 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 8,000,000 | | | |
Investment Interest Rate | [2],[3] | 0.045% | | | |
Investment Maturity Date | [3] | Jun. 10, 2021 | | | |
U.S. Treasury Bills, 0.070% due August 5, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 14.03% | | | |
United States Treasury Obligations, Value | [1] | $ 15,999,160 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 16,000,000 | | | |
Investment Interest Rate | [1],[3] | 0.07% | | | |
Investment Maturity Date | [1],[3] | Aug. 5, 2021 | | | |
U.S. Treasury Bills, 0.035% due October 7, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 14.91% | | | |
United States Treasury Obligations, Value | [1] | $ 16,997,880 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 17,000,000 | | | |
Investment Interest Rate | [1],[3] | 0.035% | | | |
Investment Maturity Date | [1],[3] | Oct. 7, 2021 | | | |
United States Treasury Obligations [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 35.96% | | 38.76% | [3] |
United States Treasury Obligations, Value | | $ 40,996,861 | | $ 54,989,124 | [3] |
Investments in Securities, Cost | | 40,992,357 | | 54,986,091 | |
Restricted for maintenance margin | | $ 34,994,800 | | $ 39,994,000 | |
Exchange Traded Funds [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [4] | 15.29% | | 12.29% | |
Affiliated investments, at value (cost $71,206,864 and $86,092,194, respectively) | [4] | $ 17,438,025 | | $ 17,435,550 | |
Affiliated Investments, Shares | [4] | 165,000 | | 165,000 | |
Exchange Traded Funds [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Affiliated investments, at value (cost $71,206,864 and $86,092,194, respectively) | | $ 17,438,025 | | $ 17,435,550 | |
Investments in Securities, Cost | | $ 17,486,475 | | $ 17,486,475 | |
Money Market Mutual Fund - Invesco Government and Agency Portfolio - Institutional Class [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 47.12% | [4],[5] | 48.35% | [6] |
Affiliated investments, at value (cost $71,206,864 and $86,092,194, respectively) | | $ 53,720,389 | [4],[5] | $ 68,605,719 | [6] |
Affiliated Investments, Shares | | 53,720,389 | [4],[5] | 68,605,719 | [6] |
Investment Interest Rate | [4] | 0.03% | [5] | 0.03% | |
Investments in Securities, Cost | [4] | $ 53,720,389 | [5] | $ 68,605,719 | |
U.S. Treasury Bills, 0.090% due June 10, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3] | | | 5.64% | |
United States Treasury Obligations, Value | [3] | | | $ 7,997,462 | |
United States Treasury Obligations, Principal Value | [3] | | | $ 8,000,000 | |
Investment Interest Rate | [3],[7] | | | 0.09% | |
Investment Maturity Date | [3],[7] | | | Jun. 10, 2021 | |
U.S. Treasury Bills, 0.140% due October 7, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3] | | | 4.93% | |
United States Treasury Obligations, Value | [3] | | | $ 6,995,707 | |
United States Treasury Obligations, Principal Value | [3] | | | $ 7,000,000 | |
Investment Interest Rate | | | | 0.14% | |
Investment Maturity Date | | | | Oct. 7, 2021 | |
U.S. Treasury Bills, 0.085% due February 25, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3],[7] | | | 14.10% | |
United States Treasury Obligations, Value | [3],[7] | | | $ 19,998,339 | |
United States Treasury Obligations, Principal Value | [3],[7] | | | $ 20,000,000 | |
Investment Interest Rate | [3] | | | 0.085% | |
Investment Maturity Date | [3] | | | Feb. 25, 2021 | |
U.S. Treasury Bills, 0.080% due March 11, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [7] | | | 14.09% | |
United States Treasury Obligations, Value | [7] | | | $ 19,997,616 | |
United States Treasury Obligations, Principal Value | [7] | | | $ 20,000,000 | |
Investment Interest Rate | [3] | | | 0.08% | |
Investment Maturity Date | [3] | | | Mar. 11, 2021 | |
| |
[1] | United States Treasury Obligations of $34,994,800 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] | 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. | |
[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] | 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] | United States Treasury Obligations of $39,994,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |