v3.26.1
OPERATING SEGMENTS
12 Months Ended
Mar. 31, 2026
OPERATING SEGMENTS [Abstract]  
OPERATING SEGMENTS
9.
OPERATING SEGMENTS
 
The Fund, which is the sole series of the Trust, and the Trust operate as a single operating segment, which is an investment portfolio. Executive officers of the Fund’s Sponsor perform the functions of the Chief Operating Decision Maker (CODM), evaluating fund-wide results and performance under a unified investment strategy. The CODM uses these measures to assess fund performance and allocate resources effectively. Internal reporting provided to the CODM aligns with the accounting policies and measurement principles used in the financial statements.
 
For information regarding segment assets, segment profit or loss, and significant expenses, refer to the Combined Statements of Assets and Liabilities and the Combined Statements of Operations, along with the related Notes to the Combined Financial Statements. The Combined Schedules of Investments provide details of the Fund’s investments that generate returns such as realized and unrealized gains or losses. Performance metrics and expense ratios are disclosed in the Combined Financial Highlights.
Franklin Ethereum ETF [Member]  
OPERATING SEGMENTS [Abstract]  
OPERATING SEGMENTS
9.
OPERATING SEGMENTS
 
The Fund, which is the sole series of the Trust, and the Trust operate as a single operating segment, which is an investment portfolio. Executive officers of the Fund’s Sponsor perform the functions of the Chief Operating Decision Maker (CODM), evaluating fund-wide results and performance under a unified investment strategy. The CODM uses these measures to assess fund performance and allocate resources effectively. Internal reporting provided to the CODM aligns with the accounting policies and measurement principles used in the financial statements.
 
For information regarding segment assets, segment profit or loss, and significant expenses, refer to the Statements of Assets and Liabilities and the Statements of Operations, along with the related Notes to Financial Statements. The Schedules of Investments provide details of the Fund’s investments that generate returns such as realized and unrealized gains or losses. Performance metrics and expense ratios are disclosed in the Financial Highlights.