Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net Income (Loss)	$ 20,586,279	$ 28,215,112
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Cost of securities purchased	(814,928,089)	(876,785,336)
Proceeds from securities sold and matured	996,297,502	907,748,509
Cost of affiliated investments purchased	(638,558,101)	(448,742,283)
Proceeds from affiliated investments sold	643,817,950	434,070,667
Net accretion of discount on United States Treasury Obligations	(4,621,102)	(5,443,524)
Net realized (gain) loss on United States Treasury Obligations and Affiliated Investments	(12,950)	19,820
Net change in unrealized (gain) loss on United States Treasury Obligations and Affiliated Investments	(163,100)	(89,445)
Change in operating assets and liabilities:
Variation margin- Currency Futures Contracts	(2,080,978)	(3,978,349)
Dividends from affiliates	28,040	(25,606)
Management fees	(125,817)	(34,704)
Brokerage commissions and fees	210	84
Net cash provided by (used in) operating activities	200,239,844	34,954,945
Cash flows from financing activities:
Proceeds from purchases of Shares	147,608,322	360,832,713
Redemption of Shares	(352,553,871)	(391,160,379)
Increase (decrease) in payable for amount due to custodian, net		(539,669)
Net cash provided by (used in) financing activities	(204,945,549)	(30,867,335)
Net change in cash	(4,705,705)	4,087,610
Cash at beginning of period	4,705,705	0
Cash at end of period	0	4,087,610
Supplemental disclosure of cash flow information
Cash paid for interest	$ 9,429	$ 12,355