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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 | ​ | $ | 63.64 | ​ | $ | 80.21 | ​ | $ | 70.05 | ​ | $ | 54.18 | ​
Total income (loss) | ​ |  | 17.24 | ​ |  | (14.95) | ​ | ​ | 11.05 | ​ | ​ | 11.30 | ​
Total expenses | ​ |  | (0.13) | ​ |  | (0.11) | ​ | ​ | (0.35) | ​ | ​ | (0.33) | ​
Net increase (decrease) in net asset value | ​ |  | 17.11 | ​ |  | (15.06) | ​ | ​ | 10.70 | ​ | ​ | 10.97 | ​
Net asset value, end of period | ​ | $ | 80.75 | ​ | $ | 65.15 | ​ | $ | 80.75 | ​ | $ | 65.15 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total Return | ​ |  | 26.89 | % |  | (18.78) | % | ​ | 15.27 | % | ​ | 20.25 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ratios to Average Net Assets | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total income (loss) | ​ |  | 24.09 | % |  | (19.26) | % | ​ | 16.30 | % | ​ | 23.71 | %
Management fees# | ​ |  | 0.45 | % |  | 0.45 | % | ​ | 0.45 | % | ​ | 0.45 | %
Total expenses excluding management fees# | ​ |  | 0.25 | % |  | 0.17 | % | ​ | 0.24 | % | ​ | 0.14 | %
Net income (loss) | ​ |  | 23.92 | % |  | (19.41) | % | ​ | 15.78 | % | ​ | 23.27 | %
# | 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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