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Statements of Financial Condition - USD ($)
Dec. 31, 2018
Oct. 31, 2018
Oct. 31, 2017
Current Assets:      
Japanese Yen deposits, interest bearing $ 169,780,005 $ 127,074,693 $ 114,156,875
Japanese Yen deposits, non-interest bearing 0 0 0
Subscriptions Receivable 4,351,792    
Total Current Assets 174,131,797 127,074,693 114,156,875
Current Liabilities:      
Redemptions payable     4,226,335
Accrued Sponsor's fee 55,665 43,161 37,756
Accrued interest expense on currency deposits 13,968 10,943 9,596
Total Current Liabilities 69,633 54,104 4,273,687
Commitments and Contingent Liabilities (note 9)
Redeemable Capital Shares, at redemption value, no par value, 69,000,000, 69,000,000 and 64,000,000 authorized, respectively - 2,000,000, 1,500,000 and 1,300,000 issued and outstanding, respectively 174,062,164 127,020,589 109,883,188
Shareholders' Equity:      
Retained Earnings 0 0 0
Total Liabilities, Redeemable Capital Shares and Shareholders' Equity $ 174,131,797 $ 127,074,693 $ 114,156,875