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FINANCIAL HIGHLIGHTS (Tables) | 6 Months Ended
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Jun. 30, 2025
FINANCIAL HIGHLIGHTS |
Summary of per share performance data and other supplemental financial data | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended |  | Three months ended |  | Six months ended |  | Six months ended |
​ | ​ | June 30, 2025 | ​ | June 30, 2024 | ​ | June 30, 2025 | ​ | June 30, 2024 | ​
​ | ​ | (Unaudited) | ​ | (Unaudited) | ​ | (Unaudited) | ​ | (Unaudited) | ​
Per Share Operating Performance: |  | ​ |  |  | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ |
Net asset value, beginning of period | ​ | $ | 77.35 | ​ | $ | 78.93 | ​ | $ | 75.45 | ​ | $ | 66.91 | ​
Total income (loss) | ​ |  | (3.95) | ​ |  | 0.86 | ​ | ​ | (1.89) | ​ | ​ | 13.02 | ​
Total expenses | ​ |  | (0.15) | ​ |  | (0.16) | ​ | ​ | (0.31) | ​ | ​ | (0.30) | ​
Net increase (decrease) in net asset value | ​ |  | (4.10) | ​ |  | 0.70 | ​ | ​ | (2.20) | ​ | ​ | 12.72 | ​
Net asset value, end of period | ​ | $ | 73.25 | ​ | $ | 79.63 | ​ | $ | 73.25 | ​ | $ | 79.63 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total Return | ​ |  | (5.30) | % |  | 0.89 | % | ​ | (2.92) | % | ​ | 19.01 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ratios to Average Net Assets | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total income (loss) | ​ |  | (7.12) | % |  | 1.70 | % | ​ | (2.83) | % | ​ | 19.33 | %
Management fees# | ​ |  | 0.45 | % |  | 0.45 | % | ​ | 0.45 | % | ​ | 0.45 | %
Total expenses excluding management fees# | ​ |  | 0.41 | % |  | 0.37 | % | ​ | 0.40 | % | ​ | 0.37 | %
Net income (loss) | ​ |  | (7.33) | % |  | 1.50 | % | ​ | (3.25) | % | ​ | 18.92 | %
# | Annualized.

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- Definition Tabular disclosure of per unit performance data and other supplemental financial data. + References No definition available. + Details
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