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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			(1,305,463)	(853,452)
Net cash used in operating activities			(1,305,463)	(853,452)
Cash flows from financing activities
Cash received to purchase redeemable shares			466,558,600	434,736,142
Cash paid to redeem redeemable shares			(460,981,544)	(414,238,526)
Net cash provided by financing activities			5,577,056	20,497,616
Adjustment to period cash flows due to currency movement			13,974,471	(1,354,313)
Increase in cash			18,246,064	18,289,851
Cash at beginning of period			376,734,108	266,705,058	$ 266,705,058
Cash at end of period	$ 394,980,172	$ 284,994,909	394,980,172	284,994,909	$ 376,734,108
Reconciliation of net loss to net cash used in operating activities:
Net Loss	$ (711,272)	$ (465,466)	(1,335,478)	(872,746)
Adjustments to reconcile net loss to net cash used in operating activities:
Currency translation adjustment			(6,584)	709
Accrued sponsor fee			126,381	86,213
Accrued interest expense			128,309	85,624
Prior period accrued sponsor fee			(108,181)	(75,126)
Prior period accrued interest expense			(109,910)	(78,126)
Net cash used in operating activities			$ (1,305,463)	$ (853,452)

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