Schedules of Investments (Unaudited) - Investments (Details)	Sep. 30, 2025 USD ($) oz	Jun. 30, 2025 USD ($) oz	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($) oz	Sep. 30, 2024 USD ($) oz	Jun. 30, 2024 USD ($) oz	Mar. 31, 2024 USD ($)	Dec. 31, 2023 USD ($) oz
Gold bullion (Ounce) | oz	15,466,659	14,208,071		12,625,208	11,907,407	12,170,050		12,815,382
Investment in gold bullion, cost	$ 31,460,481,938	$ 26,671,492,201		$ 21,152,229,978	$ 19,177,869,566	$ 19,214,436,000		$ 20,091,705,096
Gold bullion fair value	59,164,609,885			32,962,525,082
Less Liabilities	(11,283,345)			(7,052,485)
Net Assets	$ 59,153,326,540	$ 46,698,668,340	$ 42,544,094,836	$ 32,955,472,597	$ 31,309,646,703	$ 28,361,342,509	$ 27,554,551,032	$ 26,424,910,984