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FINANCIAL HIGHLIGHTS (Details) - $ / shares | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Per Share Operating Performance: |  |  |  |
Net asset value, beginning of period | $ 9.98 | $ 7.55 | $ 7.74 | $ 8.43
Total income (loss) | 4.53 | 1.04 | 6.80 | 0.19
Total expenses | (0.03) | (0.02) | (0.06) | (0.05)
Net increase (decrease) in net asset value | 4.50 | 1.02 | 6.74 | 0.14
Net asset value, end of period | $ 14.48 | $ 8.57 | $ 14.48 | $ 8.57
Total Return | 45.09% | 13.51% | 87.08% | 1.66%
Ratios to Average Net Assets |  |  |  |
Total income (loss) | 39.27% | 12.67% | 72.32% | 9.08%
Management fees | 0.75% | 0.75% | 0.75% | 0.75%
Total Expenses excluding management fees | 1.45% | 1.02% | 1.66% | 1.64%
Expense waived | (1.30%) | (0.90%) | (1.51%) | (1.49%)
Net expense excluding management fees | 0.15% | 0.12% | 0.15% | 0.15%
Net income (loss) | 39.04% | 12.45% | 71.65% | 8.40%

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