Financial Highlights - Summary of Per Share Performance (Details)	3 Months Ended
	Mar. 31, 2025 $ / shares
Investment Company, Financial Highlights [Abstract]
Principal Market NAV per-share, beginning of period	$ 23.96
Investment Company, Investment Income (Loss) from Operations, Per Share [Abstract]
Net investment loss	(0.01)
Net realized and change in unrealized on investment in ether	(10.85)
Net change in net assets from operations	(10.86)
Principal Market NAV per-share, end of period	$ 13.1
Total return, at net asset value	(45.33%)
Ratios to average net assets:
Net investment loss	(0.14%)
Gross expenses	0.20%
Net expenses	0.14%