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FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES (Details) - USD ($)	9 Months Ended
	Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024
Future contracts
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES
Monthly average volume	$ 763,667,431		$ 1,046,433,502
Swap contract
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES
Monthly average volume	236,227,097		$ 296,548,412
United States Money Market Funds
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES
Deposits in domestic and foreign financial institutions, including cash investments in money market funds	675,000,000	$ 727,450,000
US Treasury Securities
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES
Deposits in domestic and foreign financial institutions, including cash investments in money market funds	226,511,887	$ 280,259,886
SEC
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES
Aggregate penalty to be paid	2,500,000
Penalty paid	1,250,000
CFTC
FINANCIAL INSTRUMENTS, OFF-BALANCE SHEET RISKS AND CONTINGENCIES
Aggregate penalty to be paid	2,500,000
Penalty paid	$ 1,250,000

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