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Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2025
Significant Accounting Policies [Abstract] |
Summary of Fair value Hierarchy | The following is a summary of the fair value hierarchy as of December 31, 2025, and December 31, 2024:
December 31, 2025 |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in ETH |  | $ | 157,608,454 |  |  | $ | — |  |  | $ | — |  |  | $ | 157,608,454 |
December 31, 2024 |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment in ETH |  | $ | 146,428,902 |  |  | $ | — |  |  | $ | — |  |  | $ | 146,428,902 |
Changes in Quantity of ETH and Fair Value | The following represents the changes in quantity of ETH and the respective fair value:
|  | ETH |  |  | Fair Value |
Beginning balance as of January 1, 2025 |  |  | 43,935.83 |  |  | $ | 146,428,902 |
ETH purchased |  |  | 47,219.32 |  |  |  | 172,013,256 |
ETH sold |  |  | (38,106.28) |  |  |  | (127,280,000) |
Net change in unrealized appreciation (depreciation) from investment in ETH |  |  | — |  |  |  | (34,062,356) |
Net realized gain on investment in ETH |  |  | — |  |  |  | 508,652 |
Ending balance as of December 31, 2025 |  |  | 53,048.87 |  |  | $ | 157,608,454 |
|  | ETH |  |  | Fair Value |
Beginning balance as of May 20, 2024(a) |  |  | — |  |  | $ | — |
ETH purchased |  |  | 49,793.94 |  |  |  | 154,052,853 |
ETH sold |  |  | (5,858.11) |  |  |  | (16,251,349) |
Net change in unrealized appreciation (depreciation) from investment in ETH |  |  | — |  |  |  | 10,194,816 |
Net realized loss on investment in ETH |  |  | — |  |  |  | (1,567,418) |
Ending balance as of December 31, 2024 |  |  | 43,935.83 |  |  | $ | 146,428,902 |
| (a) | Date of seeding, the Trust did not hold any ETH as of May 20, 2024.

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 + Details
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