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Statements of Cash Flows (Unaudited)	3 Months Ended		6 Months Ended		12 Months Ended
	Apr. 30, 2018 USD ($)	Apr. 30, 2017 USD ($)	Apr. 30, 2018 USD ($)	Apr. 30, 2017 USD ($)	Oct. 31, 2017 USD ($)
Cash flows from operating activities
Cash received for accrued income			$ 0	$ 0
Cash paid for expenses			(316,190)	(298,095)
Net cash used in operating activities			(316,190)	(298,095)
Cash flows from financing activities
Cash received to purchase redeemable shares			91,757,297	226,714,097
Cash paid to redeem redeemable shares			(43,699,106)	(226,674,696)
Net cash provided by financing activities			48,058,191	39,401
Adjustment to period cash flows due to currency movement			4,527,239	(6,319,696)
Increase/(Decrease) in cash			52,269,240	(6,578,390)
Cash at beginning of period			114,156,875	110,280,686	$ 110,280,686
Cash at end of period	$ 166,426,115	$ 103,702,296	166,426,115	103,702,296	$ 114,156,875
Reconciliation of net loss to net cash used in operating activities
Net Loss	$ (197,879)	$ (143,771)	(338,469)	(294,957)
Adjustments to reconcile net loss to net cash used in operating activities:
Currency translation adjustment			(423)	2,913
Accrued sponsor fee			55,856	35,176
Accrued interest expense			14,198	9,266
Prior period accrued sponsor fee			(37,756)	(40,116)
Prior period accrued interest expense			(9,596)	(10,377)
Net cash used in operating activities			$ (316,190)	$ (298,095)

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