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Schedule of Investments (Unaudited) - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Investments in Securities, Value $ 1,002,334,244 $ 1,269,897,511
Restricted for maintenance margin $ 205,072,113
Investment, Affiliated Issuer [Member]    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 81.45% 68.27%
Investments in Securities, Value $ 1,002,334,244 $ 876,644,367
Affiliated Investments, at Cost 1,002,112,590 $ 876,300,343
United States Treasury Obligations [Member]    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity [1]   30.62%
Investments in Securities, Value [1]   $ 393,253,144
Investments in Securities, Cost $ 0 392,834,605 [1]
Restricted for maintenance margin   $ 393,200,000
Investments in Securities [Member]    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 81.45% 98.89%
Investments in Securities, Value $ 1,002,334,244 $ 1,269,897,511
Investments in Securities, Cost $ 1,002,112,590 $ 1,269,134,948
Investment, Identifier [Axis]: Affiliated Investments Exchange-Traded Fund Invesco Short Term Treasury ETF    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 17.49% [2] 16.78% [3]
Investments in Securities, Value $ 215,248,830 [2] $ 215,371,200 [3]
Investments in Securities, Shares 2,039,500 [2] 2,039,500 [3]
Investments in Securities, Cost $ 215,027,176 [2] $ 215,027,176 [3]
Investment, Identifier [Axis]: Affiliated Investments Money Market Mutual Fund Invesco Government & Agency Portfolio, Institutional Class    
Schedule of Investments [Line Items]    
Percentage of Shareholders' Equity 63.96% [2],[4] 51.49% [3],[5]
Investments in Securities, Value $ 787,085,414 [2],[4] $ 661,273,167 [3],[5]
Investment Interest Rate 4.26% [2],[4] 4.43% [3],[5]
Investment Maturity Date Jun. 30, 2025 [2],[4] Dec. 31, 2024 [3],[5]
Investments in Securities, Shares 787,085,414 [2],[4] 661,273,167 [3],[5]
Affiliated Investments, at Cost $ 787,085,414 [2],[4] $ 661,273,167 [3],[5]
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 [1],[6]   30.62%
Investments in Securities, Value [1],[6]   $ 393,253,144
United States Treasury Obligations, Principal Value [1],[6]   $ 400,000,000
Investment Interest Rate [1],[6]   4.34%
Investment Maturity Date [1],[6]   May 29, 2025
[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] 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] 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 June 30, 2025.
[5] The rate shown is the 7-day SEC standardized yield as of December 31, 2024.
[6] United States Treasury Obligations of $393,200,000 are on deposit with the Commodity Broker and held as maintenance margin for open futures contracts.