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FINANCIAL HIGHLIGHTS (Tables) | 9 Months Ended
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Sep. 30, 2023
FINANCIAL HIGHLIGHTS |
Summary of per share performance data and other supplemental financial data | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended |  | Three months ended | ​ |  | Nine months ended |  | Nine months ended |
​ | ​ | September 30, 2023 |  | September 30, 2022 |  | ​ | September 30, 2023 | ​ | September 30, 2022 | ​
​ | ​ | (Unaudited) | ​ | (Unaudited) | ​ | ​ | (Unaudited) | ​ | (Unaudited) | ​
Per Share Operating Performance: |  | ​ |  | ​ | ​ |  | ​ |  | ​ |  |  | ​ |  |
Net asset value, beginning of period | ​ | $ | 7.46 | ​ | $ | 18.45 | ​ | ​ | $ | 14.22 | ​ | $ | 12.39 | ​
Total income (loss) | ​ |  | (0.63) | ​ |  | 4.90 | ​ | ​ |  | (7.35) | ​ |  | 11.06 | ​
Total expenses | ​ |  | (0.02) | ​ |  | (0.07) | ​ | ​ |  | (0.06) | ​ |  | (0.17) | ​
Net increase (decrease) in net asset value | ​ |  | (0.65) | ​ |  | 4.83 | ​ | ​ |  | (7.41) | ​ |  | 10.89 | ​
Net asset value, end of period | ​ | $ | 6.81 | ​ | $ | 23.28 | ​ | ​ | $ | 6.81 | ​ | $ | 23.28 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total Return | ​ |  | (8.71) | % |  | 26.18 | % | ​ |  | (52.11) | % |  | 87.89 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ratios to Average Net Assets | ​ |  |  | ​ |  |  | ​ | ​ |  |  | ​ |  |  | ​
Total income (loss) | ​ |  | (7.07) | % |  | 21.70 | % | ​ |  | (39.07) | % |  | 59.23 | %
Management fees# | ​ |  | 0.60 | % |  | 0.60 | % | ​ |  | 0.60 | % |  | 0.60 | %
Total expenses excluding management fees# | ​ |  | 0.34 | % |  | 0.47 | % | ​ |  | 0.42 | % |  | 0.43 | %
Net income (loss) | ​ |  | (7.31) | % |  | 21.43 | % | ​ |  | (39.84) | % |  | 58.45 | %
# | 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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