Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net Income (Loss)	$ (3,520,205)	$ (409,631)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Cost of securities purchased	(46,947,478)	(74,616,286)
Proceeds from securities sold and matured	27,000,000	64,962,489
Cost of affiliated investments purchased	(104,084,145)	(57,308,844)
Proceeds from affiliated investments sold	123,333,701	61,921,855
Net accretion of discount on United States Treasury Obligations	(302,720)	(739,779)
Net realized (gain) loss on United States Treasury Obligations and Affiliated Investments		707
Net change in unrealized (gain) loss on United States Treasury Obligations and Affiliated Investments	(181)	5,079
Change in operating assets and liabilities:
Variation margin- Commodity Futures Contracts	3,559,930	(399,535)
Dividends from affiliates	(21,178)	(312)
Management fees	(9,966)	6,562
Brokerage commissions and fees	270	(7)
Net cash provided by (used in) operating activities	(991,972)	(6,577,702)
Cash flows from financing activities:
Proceeds from purchases of Shares	41,508,133	29,269,146
Redemption of Shares	(40,645,721)	(21,645,716)
Increase (decrease) in payable for amount due to custodian		(1,045,728)
Net cash provided by (used in) financing activities	862,412	6,577,702
Net change in cash	(129,560)
Cash at beginning of period	129,560
Cash at end of period	0	0
Supplemental disclosure of cash flow information
Cash paid for interest	$ 1,898	$ 1,306