Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($)		Jun. 30, 2024		Dec. 31, 2023
Schedule of Investments [Line Items]
United States Treasury Obligations, Value		$ 195,983,863		$ 294,000,317
Total Investments in Securities		$ 439,357,281		$ 405,534,374
Investment, Identifier [Axis]: Affiliated Investments
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity				28.70%
United States Treasury Obligations, Value				$ 111,534,057
Affiliated Investments, at Cost				$ 111,534,057
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class, 5.25%
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[1],[2]	54.95%
Affiliated Investments, Shares	[1],[2]	243,373,418
Investments in Securities, Value	[1],[2]	$ 243,373,418
Investment Interest Rate	[1],[2]	5.25%
Affiliated Investments, at Cost	[1],[2]	$ 243,373,418
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class, 5.29%
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity				28.70%
Affiliated Investments, Shares	[1],[2]			111,534,057
Investments in Securities, Value				$ 111,534,057
Investment Interest Rate	[3],[4]			5.29%
Affiliated Investments, at Cost	[3],[4]			$ 111,534,057
Investment, Identifier [Axis]: Investments in Securities
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		99.20%		104.34%
Total Investments in Securities		$ 439,357,281		$ 405,534,374
Investments in Securities, Cost		$ 439,303,659		$ 405,235,143
Investment, Identifier [Axis]: U.S. Treasury Bills, 5.250% due March 7, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5]			6.37%
United States Treasury Obligations, Value	[5]			$ 24,765,221
United States Treasury Obligations, Principal Value	[5]			$ 25,000,000
Investment Interest Rate	[5]			5.25%
Investment Maturity Date	[5]			Mar. 07, 2024
Investment, Identifier [Axis]: United States Treasury Obligations
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity		44.25%	[6]	75.64%	[5]
United States Treasury Obligations, Value		$ 195,983,863	[6]	$ 294,000,317	[5]
Investments in Securities, Cost		$ 195,930,241	[6]	$ 293,701,086	[5]
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.190% due June 6, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5]			6.29%
United States Treasury Obligations, Value	[5]			$ 24,453,458
United States Treasury Obligations, Principal Value	[5]			$ 25,000,000
Investment Interest Rate	[5]			5.19%
Investment Maturity Date	[5]			Jun. 06, 2024
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 5.240% due May 30, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[5],[7]			62.98%
United States Treasury Obligations, Value	[5],[7]			$ 244,781,638
United States Treasury Obligations, Principal Value	[5],[7]			$ 250,000,000
Investment Interest Rate	[5],[8]			5.24%
Investment Maturity Date	[5],[8]			May 30, 2024
Investment, Identifier [Axis]: United States Treasury Obligations, U.S. Treasury Bills, 5.155% due December 5, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[6]	5.52%
United States Treasury Obligations, Value	[6]	$ 24,440,687
United States Treasury Obligations, Principal Value	[6]	$ 2,500,000
Investment Interest Rate	[6]	5.155%
Investment Maturity Date	[6]	Dec. 05, 2024
Investment, Identifier [Axis]: United States Treasury Obligations, U.S. Treasury Bills, 5.170% due November 29, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[6],[7]	33.14%
United States Treasury Obligations, Value	[6],[7]	$ 146,781,813
United States Treasury Obligations, Principal Value	[6],[7]	$ 150,000,000
Investment Interest Rate	[6],[7]	5.17%
Investment Maturity Date	[6],[7]	Nov. 29, 2024
Investment, Identifier [Axis]: United States Treasury Obligations, U.S. Treasury Bills, 5.250% due September 5, 2024
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	[6],[7]	5.59%
United States Treasury Obligations, Value	[6],[7]	$ 24,761,363
United States Treasury Obligations, Principal Value	[6],[7]	$ 25,000,000
Investment Interest Rate	[6],[7]	5.25%
Investment Maturity Date	[6],[7]	Sep. 05, 2024

[1] 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.

[2] The rate shown is the 7-day SEC standardized yield as of June 30, 2024.

[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 December 31, 2023.

[5] 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.

[6] 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.

[7] United States Treasury Obligations of $44,330,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.

[8] United States Treasury Obligations of $68,537,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.