v3.25.2
Significant Accounting Policies - Schedule of Changes in Quantity of Ether (Details)
 6 Months Ended 7 Months Ended
Jun. 30, 2025
USD ($)
shares
Dec. 31, 2024
USD ($)
shares
Quantity of Ether [Member]    
Significant Accounting Policies - Schedule of Changes in Quantity of Ether (Details) [Line Items]    
Balance, Shares, beginning of period [1] 43,935.83
Balance, Shares, end of period 47,597.15 43,935.83 [1]
ETH contributed, Shares 7,688.77 49,793.94 [1]
ETH withdrawn, Shares (4,027.45) (5,858.11) [1]
Net change in unrealized appreciation (depreciation) from investment in ETH, Shares (in Shares) | shares [1]
Net realized loss on investment in ETH, Shares (in Shares) | shares [1]
Fair Value [Member]    
Significant Accounting Policies - Schedule of Changes in Quantity of Ether (Details) [Line Items]    
Balance, beginning of period [1] $ 146,428,902
Balance, end of period 118,333,419 146,428,902 [1]
ETH contributed 20,206,287 154,052,853 [1]
ETH withdrawn (6,650,318) (16,251,349) [1]
Net change in unrealized appreciation (depreciation) from investment in ETH (35,835,849) 10,194,816 [1]
Net realized loss on investment in ETH $ (5,815,603) $ (1,567,418) [1]
[1] Commencement of Operations, the Trust did not hold any ETH as of May 20, 2024.