Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net Income (Loss)	$ (1,781,995)	$ 3,333,385
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Cost of securities purchased	(110,237,398)	(115,663,293)
Proceeds from securities sold and matured	120,758,366	99,999,919
Cost of affiliated investments purchased	(66,168,115)	(31,079,048)
Proceeds from affiliated investments sold	65,897,108	30,378,387
Net accretion of discount on United States Treasury Obligations	(448,478)	(217,449)
Net realized (gain) loss on United States Treasury Obligations and Affiliated Investments	3,049	14
Net change in unrealized (gain) loss on United States Treasury Obligations and Affiliated Investments	1,392	(3,073)
Change in operating assets and liabilities:
Variation margin - Currency Futures Contracts	269,136	107,803
Dividends from affiliates	(2,468)	(1,948)
Management fees	(5,434)	6,336
Brokerage commissions and fees	(3)	486
Net cash provided by (used for) operating activities	8,285,160	(13,138,481)
Cash flows from financing activities:
Proceeds from purchases of Shares	82,701,350	17,399,984
Redemption of Shares	(91,155,823)	(4,430,431)
Net cash provided by (used for) financing activities	(8,454,473)	12,969,553
Net change in cash	(169,313)	(168,928)
Cash at beginning of period	169,313	168,928
Cash at end of period	0	0
Supplemental disclosure of cash flow information
Cash paid for interest	$ 837	$ 185