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Creations and Redemptions of Shares - Schedule Of Activity In Number Of Shares Issued And Redeemed (Details) - shares
3 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Equity [Abstract]    
Shares issued 120,000 0
Shares redeemed (2,740,000) 0
Net decrease in Shares (2,620,000) 0