Financial Highlights - Summary of Financial Highlights of NAV per Share (Details) - $ / shares	5 Months Ended	6 Months Ended
	Dec. 31, 2024	Dec. 31, 2024
Net Asset Value
Net asset value per Share, beginning of period	$ 35.25
Net realized and change in unrealized gain (loss) on investments in Ether	(1.94)
Net investment income (loss)	(0.03)
Net income (loss)	(1.97)
Net asset value per Share, end of period	33.28	$ 33.28
Market value per Share, beginning of period	34.6
Market value per Share, end of period	$ 33.39	$ 33.39
Ratio to average Net Assets
Investment income (loss)	(0.25%)
Expenses	0.25%
Total Return, at net asset value	(5.59%)	33.12%
Total Return, at market value	(3.50%)	33.56%