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Schedule of Investments (Unaudited) - Futures Contracts
9 Months Ended 12 Months Ended
Sep. 30, 2021
USD ($)
Contract
Dec. 31, 2020
USD ($)
Contract
Schedule of Investments [Line Items]    
Currency Futures Contracts, Value $ 489,138,414 $ 365,394,178
Futures [Member] | United States of America, Dollars [Member] | Long [Member]    
Schedule of Investments [Line Items]    
Currency Futures Contracts, Number of Contracts | Contract 5,181 4,074
Currency Futures Contracts, Expiration Date Dec. 31, 2021 Mar. 31, 2021
Currency Futures Contracts, Notional Value $ 488,257,440 $ 366,228,156
Currency Futures Contracts, Value [1] 8,564,400 (3,888,484)
Currency Futures Contracts, Unrealized Appreciation (Depreciation) [1] $ 8,564,400 $ (3,888,484)
[1] Unrealized Appreciation (Depreciation) and Value are presented above, net by contract.