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FINANCIAL HIGHLIGHTS (Details) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Per Share Operating Performance: |  |  |  |
Net asset value, beginning of year | $ 17.91 | $ 7.89 | $ 11.65 | $ 7.74
Total income (loss) | (0.18) | 2.11 | 6.11 | 2.28
Total expenses | (0.05) | (0.02) | (0.08) | (0.04)
Net increase (decrease) in net asset value | (0.23) | 2.09 | 6.03 | 2.24
Net asset value, end of year | $ 17.68 | $ 9.98 | $ 17.68 | $ 9.98
Total Return | (1.28%) | 26.49% | 51.76% | 28.94%
Ratios to Average Net Assets |  |  |  |
Total income (loss) | (17.53%) | 24.18% | 8.45% | 27.32%
Management fees | 0.75% | 0.75% | 0.75% | 0.75%
Total expenses excluding management fees | 0.64% | 1.90% | 0.58% | 1.81%
Expense waived | (0.50%) | (1.75%) | (0.43%) | (1.66%)
Net expense excluding management fees | 0.14% | 0.15% | 0.15% | 0.15%
Net income (loss) | (17.75%) | 23.96% | 8.00% | 26.87%

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