Combined Statements of Assets and Liabilities - USD ($)		Dec. 31, 2025	Mar. 31, 2025
Assets
Investment in ether, at fair value	[1]	$ 57,494,931	$ 21,614,322
Ether sold receivable		2,249,163	0
Total assets		59,744,094	21,614,322
Liabilities
Shares payable		2,249,163	0
Sponsor’s fee payable		$ 10,491	$ 8,924
Notes Payable, Related Party, Type [Extensible Enumeration]		Related Party [Member]	Related Party [Member]
Total liabilities		$ 2,259,654	$ 8,924
Commitments and contingencies (Note 7)
Net assets		$ 57,484,440	$ 21,605,398
Shares issued (in Shares)	[2]	2,550,000	1,550,000
Shares outstanding (in Shares)	[2]	2,550,000	1,550,000
Net asset value per Share (in Dollars per share)		$ 22.54	$ 13.94
Franklin Ethereum ETF [Member]
Assets
Investment in ether, at fair value	[1]	$ 57,494,931	$ 21,614,322
Ether sold receivable		2,249,163	0
Total assets		59,744,094	21,614,322
Liabilities
Shares payable		2,249,163	0
Sponsor’s fee payable		$ 10,491	$ 8,924
Notes Payable, Related Party, Type [Extensible Enumeration]		Related Party [Member]	Related Party [Member]
Total liabilities		$ 2,259,654	$ 8,924
Commitments and contingencies (Note 7)
Net assets		$ 57,484,440	$ 21,605,398
Shares issued (in Shares)	[2]	2,550,000	1,550,000
Shares outstanding (in Shares)	[2]	2,550,000	1,550,000
Net asset value per Share (in Dollars per share)		$ 22.54	$ 13.94

[1] Cost of investment in ether: $67,384,986 at December 31, 2025 and $37,851,948 at March 31, 2025.

[2] No par value, unlimited amount authorized.