Schedules of Investments (Unaudited) - Investments (Details)	Mar. 31, 2026 USD ($)	Dec. 31, 2025 USD ($)	Mar. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)
Ether	3,035,336	3,467,229	1,191,766	1,071,415
Investment in ether, at cost	$ 10,674,287,156	$ 12,538,047,760	$ 3,887,465,641	$ 3,543,902,275
Ether fair value	6,379,790,561	10,303,043,495
Liabilities in Excess of Other Assets	(1,385,405)	(2,286,975)
Net Assets	$ 6,378,405,156	$ 10,300,756,520	$ 2,186,390,619	$ 3,571,262,167