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STATEMENTS OF OPERATIONS - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Investment income:      
Investment income $ 0 $ 0 $ 0
Expenses      
Sponsor's Fee, related party 739 1,232 252
Net investment loss (739) (1,232) (252)
Net realized and unrealized (loss) gain from:      
Net realized (loss) gain on investment in ZEC (495) 32 (604)
Net change in unrealized (depreciation) appreciation on investment in ZEC (34,944) 21,944 6,081
Net realized and unrealized gain (loss) on investment (35,439) 21,976 5,477
Net increase (decrease) in net assets resulting from operations $ (36,178) $ 20,744 $ 5,225