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FINANCIAL HIGHLIGHTS (Details) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | [1] | Jun. 30, 2020 | Jun. 30, 2019
Per Share Operating Performance: |  |  |  |  |  |  |
Net asset value, beginning of period |  | $ 33.94 | $ 100.00 | $ 102.27 | [2] | $ 76.68 |
Total income (loss) |  | (5.86) | (2.74) | (74.10) |  | 24.55 |
Total expenses |  | (0.06) | (0.20) | (0.15) |  | (0.37) |
Net increase (decrease) in net asset value |  | (5.92) | (2.94) | (74.25) |  | 20.38 |
Net asset value, end of period |  | $ 28.02 | $ 97.06 | $ 28.02 |  | $ 97.06 | [1]
Total Return |  | (17.44%) | (2.94%) | (72.60%) |  | 26.49% |
Ratios to Average Net Assets |  |  |  |  |  |  |
Total income (loss) |  | (22.14%) | (1.53%) | (90.01%) |  | 25.81% |
Management fees | [3] | 0.45% | 0.45% | 0.45% |  | 0.45% |
Expenses excluding management fees | [3] | 0.55% | 0.34% | 0.53% |  | 0.34% |
Net income (loss) |  | (22.39%) | (1.72%) | 90.49% |  | 25.42% |
[1] | On April 28, 2020, there was a 1-for-8 reverse share split. The Financial Highlights have been adjusted for the period shown to reflect the 1-for-8 reverse share split on retroactive basis.
[2] | On April 28, 2020, there was a 1-for-8 reverse share split. The Condensed Statement of Financial Conditions have been adjusted for the periods shown to reflect the 1-for-8 reverse share split on retroactive basis.
[3] | Annualized.

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