v3.26.1
Significant Accounting Policies - Changes in Quantity of ETH and Fair Value (Details)
7 Months Ended 12 Months Ended
Dec. 31, 2024
USD ($)
Ethereum
Dec. 31, 2025
USD ($)
Ethereum
Significant Accounting Policies [Abstract]    
Beginning balance (in Ethereum) | Ethereum [1] 0 43,935.83
Beginning balance, Fair Value [1] $ 0 $ 146,428,902
ETH purchased (in Ethereum) | Ethereum 49,793.94 [1] 47,219.32
ETH purchased, Fair Value $ 154,052,853 [1] $ 172,013,256
ETH sold (in Ethereum) | Ethereum (5,858.11) [1] (38,106.28)
ETH sold, Fair Value $ (16,251,349) [1] $ (127,280,000)
Net change in unrealized appreciation (depreciation) from investment in ETH, Fair Value 10,194,816 [1] (34,062,356)
Net realized gain on investment in ETH, Fair Value $ (1,567,418) [1] $ 508,652
Ending balance (in Ethereum) | Ethereum 43,935.83 [1] 53,048.87
Ending balance, Fair Value $ 146,428,902 [1] $ 157,608,454
[1] Date of seeding, the Trust did not hold any ETH as of May 20, 2024.