Statements of Changes in Net Assets - USD ($) |
12 Months Ended | ||
|---|---|---|---|
Jan. 31, 2026 |
Jan. 31, 2025 |
Jan. 31, 2024 |
|
| Statement of Stockholders' Equity [Abstract] | |||
| Net Assets—beginning of year | $ 1,314,597,389 | $ 780,184,347 | $ 656,592,798 |
| Creations | 527,308,972 | 230,560,739 | 114,227,672 |
| Redemptions | (31,484,558) | (9,295,829) | (28,535,208) |
| Net investment loss | (4,831,111) | (2,578,699) | (1,798,880) |
| Net realized gain from gold bullion distributed for redemptions | 12,284,110 | 2,788,531 | 3,399,475 |
| Net change in unrealized appreciation (depreciation) on investment in gold bullion | 1,085,411,124 | 312,938,300 | 36,298,490 |
| Net Assets—end of year | $ 2,903,285,926 | $ 1,314,597,389 | $ 780,184,347 |