Derivative Instruments - Fair Value of Derivative Instruments (Detail) - Currency Futures Contracts [Member] - Not Designated as Hedging Instrument [Member] - USD ($)

Dec. 31, 2025

Dec. 31, 2024

Derivatives, Fair Value [Line Items]

Assets

^[1]

$ 503,597

Liabilities

^[1]

$ (929,793)

[1]	Includes cumulative appreciation (depreciation) of currency futures contracts. Only the current day’s variation margin receivable (payable) is reported in the Statements of Financial Condition.

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References + Details

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References + Details

INVESCO DB US DOLLAR INDEX BEARISH FUND 10-K