| Schedule of financial highlights | |
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For the Three Months Ended
March 31, 2026 (Unaudited) | | |
For the Three Months Ended
March 31, 2025 (Unaudited) | |
| Net asset value, beginning of period | |
| $92.51 | | |
| $99.04 | |
| Investment operations: | |
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| Net investment loss | |
| (0.05) | | |
| (0.06) | |
| Net realized and unrealized loss | |
| (20.44) | | |
| (11.04) | |
| Total from investment operations | |
| (20.49) | | |
| (11.10) | |
| Net asset value, end of period | |
| $72.02 | | |
| $87.94 | |
| TOTAL RETURN1 | |
| (22.15)% | | |
| (11.21)% | |
| RATIOS/SUPPLEMENTAL DATA: | |
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| Net assets, end of period (000’s omitted) | |
| $147,273 | | |
| $152,576 | |
| Ratios to average net assets of: | |
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| Expenses2 | |
| 0.25% | | |
| 0.25% | |
| Net investment loss2 | |
| (0.25)% | | |
| (0.25)% | |