Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020
Cash flows from operating activities:
Net Income (Loss)	$ 615,356,655	$ (256,534,214)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Cost of securities purchased	(1,445,740,189)	(858,980,266)
Proceeds from securities sold and matured	803,999,998	1,156,994,204
Cost of affiliated investments purchased	(2,905,207,909)	(1,806,051,012)
Proceeds from affiliated investments sold	2,397,136,105	1,925,717,569
Net accretion of discount on United States Treasury Obligations	(354,127)	(3,193,929)
Net realized (gain) loss on United States Treasury Obligations and Affiliated Investments	2	(534,287)
Net change in unrealized (gain) loss on United States Treasury Obligations, Affiliated Investments and LME Commodity Futures Contracts	15,919,712	(13,880,463)
Change in operating assets and liabilities:
Dividends from affiliates	(13,531)	342,348
Variation margin - Commodity Futures Contracts	(13,347,051)	(20,275,683)
LME Commodity Futures Contracts	5,591,579	(3,302,935)
Management fees	858,644	(287,500)
Brokerage commissions and fees	(2,443)	1,778
Net cash provided by (used in) operating activities	(525,802,555)	120,015,610
Cash flows from financing activities:
Proceeds from purchases of Shares	1,293,138,837	255,230,466
Redemption of Shares	(774,877,762)	(375,246,076)
Net cash provided by (used in) financing activities	518,261,075	(120,015,610)
Net change in cash	(7,541,480)	0
Cash at beginning of period	7,541,480
Cash at end of period	0	0
Supplemental disclosure of cash flow information
Cash paid for interest	$ 21,550	$ 38,852