Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities:
Net Income (Loss)	$ 22,382,410	$ (151,710,385)	$ 551,790,070
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Cost of securities purchased	(1,072,897,142)	(2,725,821,126)	(3,513,373,147)
Proceeds from securities sold and matured	1,500,000,000	3,259,999,847	2,882,029,600
Cost of affiliated investments purchased	(2,207,958,507)	(3,555,261,081)	(7,464,209,086)
Proceeds from affiliated investments sold	2,239,424,067	4,072,945,337	8,042,449,383
Net accretion of discount on United States Treasury Obligations	(36,358,923)	(45,806,209)	(18,597,705)
Net realized (gain) loss on United States Treasury Obligations and Affiliated Investments	4	154	103,308
Net change in unrealized (gain) loss on United States Treasury Obligations, Affiliated Investments and LME Commodity Futures Contracts	6,073,186	(37,201,718)	63,097,601
Change in operating assets and liabilities:
Variation margin - Commodity Futures Contracts	(15,115,460)	38,134,315	(62,155,794)
LME Commodity Futures Contracts	(4,691,741)	(46,384,666)	59,888,443
Dividends from affiliates	992,974	890,154	(4,569,269)
Management fees	(314,984)	(681,835)	36,219
Brokerage commissions and fees	174	1,498	(557)
Net cash provided by (used in) operating activities	431,536,058	809,104,285	536,489,066
Cash flows from financing activities:
Distributions paid to shareholders	(68,106,248)	(84,199,842)	(16,159,645)
Proceeds from purchases of Shares	208,115,689	370,325,566	2,336,302,006
Redemption of Shares	(562,237,400)	(1,095,230,009)	(2,856,631,427)
Net cash provided by (used in) financing activities	(422,227,959)	(809,104,285)	(536,489,066)
Net change in cash	9,308,099	0	0
Cash at beginning of period	0	0	0
Cash at end of period	9,308,099	0	0
Supplemental disclosure of cash flow information
Cash paid for interest	$ 433,098	$ 511,287	$ 349,325