FINANCIAL HIGHLIGHTS (Details) - $ / shares |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Per Share Operating Performance: | ||||
| Net asset value, beginning of period | $ 47.79 | $ 38.21 | $ 33.31 | $ 38.01 |
| Total income (loss) | (2.58) | (2.94) | 11.99 | (2.65) |
| Total expenses | (0.13) | (0.08) | (0.22) | (0.17) |
| Net increase (decrease) in net asset value | (2.71) | (3.02) | 11.77 | (2.82) |
| Net asset value, end of period | $ 45.08 | $ 35.19 | $ 45.08 | $ 35.19 |
| Total Return | (5.67%) | (7.90%) | 35.33% | (7.42%) |
| Ratios to Average Net Assets | ||||
| Total income (loss) | (3.18%) | (9.47%) | 30.20% | (7.69%) |
| Management fees | 0.60% | 0.60% | 0.60% | 0.60% |
| Total expenses excluding management fees | 0.38% | 0.36% | 0.37% | 0.37% |
| Net income (loss) | (3.42%) | (9.71%) | 29.72% | (8.17%) |