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FINANCIAL HIGHLIGHTS (Details) - $ / shares | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Per Share Operating Performance: |  |  |  |
Net asset value, beginning of period | $ 7.89 | $ 7.63 | $ 7.74 | $ 8.43
Total income (loss) | 2.11 | (0.06) | 2.28 | (0.84)
Total expenses | (0.02) | (0.02) | (0.04) | (0.04)
Net increase (decrease) in net asset value | 2.09 | (0.08) | 2.24 | (0.88)
Net asset value, end of period | $ 9.98 | $ 7.55 | $ 9.98 | $ 7.55
Total Return | 26.49% | (1.05%) | 28.94% | (10.44%)
Ratios to Average Net Assets |  |  |  |
Total income (loss) | 24.18% | (2.25%) | 27.32% | (11.90%)
Management fees | 0.75% | 0.75% | 0.75% | 0.75%
Total Expenses excluding management fees | 1.90% | 2.21% | 1.81% | 2.22%
Expense waived | (1.75%) | (2.01%) | (1.66%) | (2.04%)
Net expense excluding management fees | 0.15% | 0.20% | 0.15% | 0.18%
Net income (loss) | 23.96% | (2.49%) | 26.87% | (12.36%)

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