Schedule of Investments (Unaudited) - Treasury Bills and Affiliated Investments - USD ($) | Sep. 30, 2021 | Dec. 31, 2020 |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 99.31% | | 98.04% | |
United States Treasury Obligations, Value | | $ 362,984,395 | | $ 209,933,439 | |
Affiliated Investments, Value | | 508,854,304 | | 425,809,714 | |
Investments in Securities, Value | | 871,838,699 | | 635,743,153 | |
Investments in Securities, cost | | $ 871,630,946 | | $ 635,517,149 | |
Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | | 57.96% | | 65.67% | |
Affiliated Investments, Value | | $ 508,854,304 | | $ 425,809,714 | |
Affiliated Investments, at Cost | | $ 508,648,170 | | $ 425,595,133 | |
U.S. Treasury Bills, 0.050% due October 7, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 10.93% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 95,999,574 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 96,000,000 | | | |
Investment Interest Rate | [2] | 0.05% | | | |
Investment Maturity Date | [2] | Oct. 7, 2021 | | | |
Restricted for maintenance margin | | $ 185,969,400 | | | |
U.S. Treasury Bills, 0.050% due November 4, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 0.68% | | | |
United States Treasury Obligations, Value | [1] | $ 5,999,684 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 6,000,000 | | | |
Investment Interest Rate | | 0.05% | | | |
Investment Maturity Date | | Nov. 4, 2021 | | | |
U.S. Treasury Bills, 0.045% due December 2, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 4.56% | | | |
United States Treasury Obligations, Value | [1] | $ 39,998,278 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 40,000,000 | | | |
Investment Interest Rate | | 0.045% | | | |
Investment Maturity Date | | Dec. 2, 2021 | | | |
U.S. Treasury Bills, 0.045% due December 9, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 2.05% | | | |
United States Treasury Obligations, Value | [1] | $ 17,999,301 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 18,000,000 | | | |
Investment Interest Rate | | 0.045% | | | |
Investment Maturity Date | | Dec. 9, 2021 | | | |
U.S. Treasury Bills, 0.040% due January 6, 2022 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 4.56% | | | |
United States Treasury Obligations, Value | [1] | $ 39,997,003 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 40,000,000 | | | |
Investment Interest Rate | | 0.04% | | | |
Investment Maturity Date | | Jan. 6, 2022 | | | |
U.S. Treasury Bills, 0.050% due January 20, 2022 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 2.85% | | | |
United States Treasury Obligations, Value | [1] | $ 24,997,546 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 25,000,000 | | | |
Investment Interest Rate | | 0.05% | | | |
Investment Maturity Date | | Jan. 20, 2022 | | | |
U.S. Treasury Bills, 0.050% due January 27, 2022 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 9.11% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 79,990,166 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 80,000,000 | | | |
Investment Interest Rate | [2] | 0.05% | | | |
Investment Maturity Date | [2] | Jan. 27, 2022 | | | |
Restricted for maintenance margin | | $ 185,969,400 | | | |
U.S. Treasury Bills, 0.055% due February 3, 2022 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[2] | 4.56% | | | |
United States Treasury Obligations, Value | [1],[2] | $ 40,006,043 | | | |
United States Treasury Obligations, Principal Value | [1],[2] | $ 40,011,600 | | | |
Investment Interest Rate | [2] | 0.055% | | | |
Investment Maturity Date | [2] | Feb. 3, 2022 | | | |
Restricted for maintenance margin | | $ 185,969,400 | | | |
U.S. Treasury Bills, 0.050% due March 10, 2022 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 2.05% | | | |
United States Treasury Obligations, Value | [1] | $ 17,996,800 | | | |
United States Treasury Obligations, Principal Value | [1] | $ 18,000,000 | | | |
Investment Interest Rate | | 0.05% | | | |
Investment Maturity Date | | Mar. 10, 2022 | | | |
United States Treasury Obligations [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | 41.35% | | 32.37% | |
United States Treasury Obligations, Value | [1] | $ 362,984,395 | | $ 209,933,439 | |
Investments in Securities, cost | | $ 362,982,776 | | $ 209,922,016 | |
Exchange-Traded Fund [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3] | 10.16% | | 13.77% | |
Affiliated Investments, Value | [3] | $ 89,251,002 | | $ 89,259,449 | |
Affiliated Investments, Shares | [3] | 844,700 | | 844,700 | |
Affiliated Investments, at Cost | [3] | $ 89,044,868 | | $ 89,044,868 | |
Money Market Mutual Fund - Invesco Government & Agency Portfolio - Institutional Class [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Investment Interest Rate | [3] | 0.03% | [4] | 0.03% | [5] |
Affiliated Investments, at Cost | [3] | $ 419,603,302 | [4] | $ 336,550,265 | [5] |
Money Market Mutual Fund - Invesco Government & Agency Portfolio - Institutional Class [Member] | Invesco Government And Agency Portfolio - Institutional Class [Member] | Affiliated Investments [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [3] | 47.80% | [4] | 51.90% | [5] |
Affiliated Investments, Value | [3] | $ 419,603,302 | [4] | $ 336,550,265 | [5] |
Affiliated Investments, Shares | [3] | 419,603,302 | [4] | 336,550,265 | [5] |
US Treasury Bills, 0.080% Due March 11, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1],[6] | | | 13.88% | |
United States Treasury Obligations, Value | [1],[6] | | | $ 89,989,275 | |
United States Treasury Obligations, Principal Value | [1],[6] | | | $ 90,000,000 | |
Investment Interest Rate | [1],[6] | | | 0.08% | |
Investment Maturity Date | [1],[6] | | | Mar. 11, 2021 | |
Restricted for maintenance margin | | | | $ 89,982,000 | |
US Treasury Bills, 0.090% Due June 10, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | | | 9.25% | |
United States Treasury Obligations, Value | [1] | | | $ 59,980,964 | |
United States Treasury Obligations, Principal Value | [1] | | | $ 60,000,000 | |
Investment Interest Rate | [1] | | | 0.09% | |
Investment Maturity Date | [1] | | | Jun. 10, 2021 | |
US Treasury Bills, 0.140% Due October 7, 2021 [Member] | | | | | |
Schedule of Investments [Line Items] | | | | | |
Percentage of Shareholders' Equity | [1] | | | 9.24% | |
United States Treasury Obligations, Value | [1] | | | $ 59,963,200 | |
United States Treasury Obligations, Principal Value | [1] | | | $ 60,000,000 | |
Investment Interest Rate | [1] | | | 0.14% | |
Investment Maturity Date | [1] | | | Oct. 7, 2021 | |
| |
[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 $185,969,400 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 September 30, 2021. | |
[5] | The rate shown is the 7-day SEC standardized yield as of December 31, 2020. | |
[6] | United States Treasury Obligations of $89,982,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts. | |