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Statements of Comprehensive Income - USD ($)	3 Months Ended																12 Months Ended
	Oct. 31, 2018		Jul. 31, 2018		Apr. 30, 2018		Jan. 31, 2018		Oct. 31, 2017		Jul. 31, 2017		Apr. 30, 2017		Jan. 31, 2017		Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Income
Interest Income	$ 399,666		$ 339,643		$ 257,267		$ 220,319		$ 202,400		$ 45,511		$ 30,392		$ 16,404		$ 1,216,895	$ 294,707	$ 23,285
Total Income	399,666		339,643		257,267		220,319		202,400		45,511		30,392		16,404		1,216,895	294,707	23,285
Expenses
Sponsor's fee	(160,266)		(162,663)		(165,617)		(175,416)		(189,135)		(187,853)		(178,789)		(200,899)		(663,962)	(756,676)	(834,108)
Total Expenses	(160,266)		(162,663)		(165,617)		(175,416)		(189,135)		(187,853)		(178,789)		(200,899)		(663,962)	(756,676)	(834,108)
Net Comprehensive Income/(Loss)	$ 239,400		$ 176,980		$ 91,650		$ 44,903		$ 13,265		$ (142,342)		$ (148,397)		$ (184,495)		$ 552,933	$ (461,969)	$ (810,823)
Basic and Diluted Earnings per Share	$ 0.11	[1]	$ 0.08	[1]	$ 0.04	[1]	$ 0.02	[1]	$ 0.01	[1]	$ (0.06)	[1]	$ (0.06)	[1]	$ (0.07)	[1]	$ 0.26	$ (0.18)	$ (0.29)
Weighted-average Shares Outstanding	2,096,739		2,136,413		2,186,517		2,230,435		2,375,000		2,492,391		2,473,034		2,686,413		2,162,329	2,506,986	2,791,393
[1] The amount shown for a Share outstanding for quarterly statements may not correlate with year to date amounts due to timing of subscriptions and redemptions in relation to income earned or distributed.

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