Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net Income (Loss)	$ 6,935,241	$ 22,939,458
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Cost of securities purchased	(556,811,877)	(545,065,707)
Proceeds from securities sold and matured	749,313,545	607,748,509
Cost of affiliated investments purchased	(479,360,977)	(323,235,049)
Proceeds from affiliated investments sold	479,740,925	292,712,677
Net accretion of discount on United States Treasury Obligations	(3,386,669)	(3,308,025)
Net realized (gain) loss on United States Treasury Obligations and Affiliated Investments	(5,284)	19,820
Net change in unrealized (gain) loss on United States Treasury Obligations and Affiliated Investments	(219,638)	(700,179)
Change in operating assets and liabilities:
Variation margin- Currency Futures Contracts	(957,878)	1,257,407
Dividends from affiliates	23,315	(9,048)
Management fees	(104,159)	(15,893)
Brokerage commissions and fees	(1,304)	(1,057)
Net cash provided by (used for) operating activities	195,165,240	52,342,913
Cash flows from financing activities:
Proceeds from purchases of Shares	62,419,533	264,778,174
Redemption of Shares	(262,242,727)	(315,895,872)
Increase (decrease) in payable for amount due to custodian, net		(539,669)
Net cash provided by (used for) financing activities	(199,823,194)	(51,657,367)
Net change in cash	(4,657,954)	685,546
Cash at beginning of period	4,705,705	0
Cash at end of period	47,751	$ 685,546
Supplemental disclosure of cash flow information
Cash paid for interest	$ 6,505