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Condensed Schedule of Investments (Unaudited) (Parenthetical)
9 Months Ended
Sep. 30, 2022
USD ($)
Investment, Period of Yield 7 days
Expiration date Sep. 30, 2022
Collateral amount on open futures contracts $ 134,761,553
Morgan Stanley Institutional Liquidity Funds - Government Portfolio - Institutional Shares, 2.80%  
Interest rate 2.80%
Dreyfus Institutional Preferred Government Money Market Fund - Institutional Shares, 2.99%  
Interest rate 2.99%