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FINANCIAL HIGHLIGHTS (Tables) | 6 Months Ended
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Jun. 30, 2022
FINANCIAL HIGHLIGHTS |
Schedule of per unit performance data and other supplemental financial data | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three months ended |  | Three months ended |  | Six months ended |  | Six months ended |
​ | ​ | June 30, 2022 | ​ | June 30, 2021 | ​ | June 30, 2022 | ​ | June 30, 2021 | ​
​ | ​ | (Unaudited) | ​ | (Unaudited) | ​ | (Unaudited) | ​ | (Unaudited) | ​
Per Share Operating Performance: |  | ​ |  |  | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ |
Net asset value, beginning of period | ​ | $ | 73.83 | ​ | $ | 40.40 | ​ | $ | 54.18 | ​ | $ | 33.07 | ​
Total income (loss) | ​ |  | 6.49 | ​ |  | 9.57 | ​ | ​ | 26.24 | ​ | ​ | 16.97 | ​
Total expenses | ​ |  | (0.11) | ​ |  | (0.10) | ​ | ​ | (0.21) | ​ | ​ | (0.17) | ​
Net increase (decrease) in net asset value | ​ |  | 6.38 | ​ |  | 9.47 | ​ | ​ | 26.03 | ​ | ​ | 16.80 | ​
Net asset value, end of period | ​ | $ | 80.21 | ​ | $ | 49.87 | ​ | $ | 80.21 | ​ | $ | 49.87 | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total Return | ​ |  | 8.64 | % |  | 23.44 | % | ​ | 48.04 | % | ​ | 50.80 | %
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Ratios to Average Net Assets | ​ |  | ​ | ​ |  | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Total income (loss) | ​ |  | 8.48 | % |  | 21.48 | % | ​ | 36.81 | % | ​ | 42.66 | %
Management fees# | ​ |  | 0.45 | % |  | 0.45 | % | ​ | 0.45 | % | ​ | 0.45 | %
Total expenses excluding management fees# | ​ |  | 0.09 | % |  | 0.43 | % | ​ | 0.14 | % | ​ | 0.37 | %
Net income (loss) | ​ |  | 8.35 | % |  | 21.26 | % | ​ | 36.52 | % | ​ | 42.25 | %
# | Annualized.

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