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Schedule of Financial Highlights (Details) - $ / shares
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Net Asset Value    
Net Asset Value per Share, beginning of period $ 24.74 $ 26.43
Net investment income (loss) (0.01) (0.02)
Net realized and change in unrealized Gain (loss) (5.49) (2.92)
Net income (loss) (5.50) (2.94)
Net asset value per Share, end of period 19.24 23.49
Market Value per Share, beginning of period 24.73 26.45
Market Value per Share, end of period $ 19.13 $ 23.30
Ratio to average net assets    
Net investment income (loss) [1] (0.25%) (0.25%)
Gross expenses [1] 0.25% 0.25%
Net expenses [1] 0.25% 0.25%
Total return, at net asset value [2] (22.23%) (11.12%)
Total return, at market value [2] (22.64%) (11.91%)
[1] Annualized
[2] Not annualized