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Combined Schedules of Investment - 2
$ in Thousands
Jun. 30, 2026
USD ($)
oz
Sep. 30, 2025
USD ($)
oz
Investments in Gold, at cost $ 21,239,188 $ 14,202,521
Total Investments, Fair Value $ 27,303,440 $ 20,855,894
Total Investments, % of Net Assets 100.15% 100.01%
SPDR Gold Mini Shares Trust [Member]    
Investments in Gold, at cost $ 21,239,188 $ 14,202,521
Total Investments, Fair Value $ 27,303,440 $ 20,855,894
Total Investments, % of Net Assets 100.15% 100.01%
Investment, Identifier [Axis]: Investment in Gold    
Investment in Gold (Ounce) | oz 6,781,700 5,452,100
Investments in Gold, at cost $ 21,239,188 $ 14,202,521
Total Investments, Fair Value $ 27,303,440 $ 20,855,894
Total Investments, % of Net Assets 100.15% 100.01%
Investment, Identifier [Axis]: Investment in Gold | SPDR Gold Mini Shares Trust [Member]    
Investment in Gold (Ounce) | oz 6,781,700 5,452,100
Investments in Gold, at cost $ 21,239,188 $ 14,202,521
Total Investments, Fair Value $ 27,303,440 $ 20,855,894
Total Investments, % of Net Assets 100.15% 100.01%