v3.25.1
Schedule of Investments (Unaudited) - Treasury Bills and Money Market Fund - USD ($)
Mar. 31, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 88.06% 98.89%
Investments in Securities, Value $ 1,196,885,957 $ 1,269,897,511
Investments in Securities, Cost 1,196,562,998 $ 1,269,134,948
Restricted for maintenance margin $ 143,255,407  
Investment, Identifier [Axis]: Affiliated Investments    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 58.83% 68.27%
Investments in Securities, Value $ 799,613,441 $ 876,644,367
Affiliated Investments, at Cost $ 799,401,984 $ 876,300,343
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Short Term Treasury ETF    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 15.84% [1] 16.78% [2]
Investments in Securities, Value $ 215,238,633 [1] $ 215,371,200 [2]
Investments in Securities, Shares 2,039,500 [1] 2,039,500 [2]
Investments in Securities, Cost $ 215,027,176 [1] $ 215,027,176 [2]
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 42.99% [1],[3] 51.49% [2],[4]
Investments in Securities, Value $ 584,374,808 [1],[3] $ 661,273,167 [2],[4]
Investment Interest Rate 4.29% [1],[3] 4.43% [2],[4]
Investment Maturity Date Mar. 31, 2025 [1],[3] Dec. 31, 2024 [2],[4]
Investments in Securities, Shares 584,374,808 [1],[3] 661,273,167 [2],[4]
Affiliated Investments, at Cost $ 584,374,808 [1],[3] $ 661,273,167 [2],[4]
Investment, Identifier [Axis]: United States Treasury Obligations    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 29.23% [5] 30.62% [6]
Investments in Securities, Value $ 397,272,516 [5] $ 393,253,144 [6]
Investments in Securities, Cost 397,161,014 [5] 392,834,605 [6]
Restricted for maintenance margin $ 99,310,000 $ 393,200,000
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bill, 4.340% due May 29, 2025    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity [6],[7]   30.62%
Investments in Securities, Value [6],[7]   $ 393,253,144
United States Treasury Obligations, Principal Value [6],[7]   $ 400,000,000
Investment Interest Rate [6],[7]   4.34%
Investment Maturity Date [6],[7]   May 29, 2025
Investment, Identifier [Axis]: United States Treasury Obligations U.S. Treasury Bills, 4.195% due May 29, 2025    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity [5],[8] 29.23%  
Investments in Securities, Value [5],[8] $ 397,272,516  
United States Treasury Obligations, Principal Value [5],[8] $ 400,000,000  
Investment Interest Rate [5],[8] 4.195%  
Investment Maturity Date [5],[8] May 29, 2025  
[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] 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
[3] The rate shown is the 7-day SEC standardized yield as of March 31, 2025.
[4] The rate shown is the 7-day SEC standardized yield as of December 31, 2024.
[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 $393,200,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.
[8] United States Treasury Obligations of $99,310,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.