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COMBINED FINANCIAL HIGHLIGHTS - Summary of Financial Highlights (Details) - $ / shares
 3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
COMBINED FINANCIAL HIGHLIGHTS [Abstract]    
Net asset value per Share, beginning of period (in Dollars per share) $ 61.37 $ 41.54
Net investment loss (in Dollars per share) [1] (0.02) (0.02)
Net realized and unrealized gain (loss) on investment in gold (in Dollars per share) (7.76) 2.3
Net change in net assets from operations (in Dollars per share) [2] (7.78) 2.28
Net asset value per Share, end of period (in Dollars per share) $ 53.59 $ 43.82
Total return, at net asset value [3] (12.68%) 5.49%
Ratio to average net assets(d)    
Net investment loss [4] (0.15%) (0.15%)
Net expenses [4] 0.15% 0.15%
[1] Calculated using average Shares outstanding.
[2] The amount shown for a share outstanding may not agree with the change in the aggregate gains and losses on investment for the period because of the timing of transactions in the Fund’s shares in relation to fluctuating market values for the Fund’s underlying investment.
[3] Calculated based on the change in net asset value of a Share during the period. Total return for periods of less than a year are not annualized.
[4] Annualized.