v3.26.1
SIGNIFICANT ACCOUNTING POLICIES - Summary of Changes in Shares (Details) - Franklin Ethereum ETF [Member]
 8 Months Ended 12 Months Ended
Jun. 27, 2024
USD ($)
Ethereum
CreationUnits
$ / item
shares
May 21, 2024
USD ($)
$ / shares
shares
Mar. 31, 2025
USD ($)
Ethereum
shares
Mar. 31, 2026
USD ($)
Ethereum
shares
Jul. 22, 2024
Ethereum
SIGNIFICANT ACCOUNTING POLICIES [Abstract]          
Beginning balance | shares     100,000 1,550,000 [1]  
Beginning balance [2]     $ 2,620,289 [3] $ 38,847,498  
Creation of shares | shares     1,750,000 2,850,000  
Creation of shares [2]     $ 42,553,442 [4] $ 75,689,578  
Redemption of shares | shares     (300,000) (1,750,000)  
Redemption of shares [2]     $ (6,326,233) $ (46,977,953)  
Ending balance | shares [1]     1,550,000 2,650,000  
Ending balance [2]     $ 38,847,498 $ 67,559,123  
Proceeds from issuance of shares $ 2,619,241.2   42,553,442 75,689,578  
Redemption of shares [2]     $ 6,326,233 $ 46,977,953  
Number of Ether per creation unit 380        
Number of Ether per share 0.0076        
Quantity of ether | Ethereum 760   11,780.2062 20,095.4606 760
Quantity of ether purchased | Ethereum 760   11,780.2062 20,095.4606 760
Cost of Ether per unit | $ / item 3,446.37        
Initial Seed Shares [Member]          
SIGNIFICANT ACCOUNTING POLICIES [Abstract]          
Creation of shares | shares   4,000      
Redemption of shares $ (100,000)        
Shares issued, price per share (in Dollars per share) | $ / shares   $ 25      
Proceeds from issuance of shares   $ 100,000      
Redemption of shares $ 100,000        
Seed Creation Units [Member]          
SIGNIFICANT ACCOUNTING POLICIES [Abstract]          
Creation of shares | shares 100,000        
Proceeds from issuance of shares $ 2,619,241.2        
Number of seed creation units issued | CreationUnits 2        
Number of Ether per creation unit 380        
Number of Ether per share 0.0076        
Quantity of ether | Ethereum 760        
Quantity of ether purchased | Ethereum 760        
[1] No par value, unlimited amount authorized.
[2] Dollar amount of balance represents the cumulative fair value of creation of shares less the redemption of shares, at the time of the specific creation or redemption.
[3] On May 21, 2024, Franklin Resources Inc. (the “Seed Capital Investor”), an affiliate of the Sponsor, subject to conditions, purchased 4,000 Shares at a per-Share price equal to $25.00 (the “Initial Seed Shares”). Delivery of the Initial Seed Shares was made on May 21, 2024. Total proceeds to the Fund from the sale of the Initial Seed Shares were $100,000. On June 27, 2024, the Initial Seed Shares were redeemed for $100,000 and the Seed Capital Investor purchased two creation units in a cash transaction comprised of a total of 100,000 Shares at a per-Share price based on 380 ether per Creation Unit (or 0.0076 ether per Share), for a total of 760 ether (the “Seed Creation Units”). The cash proceeds to the Fund from the sale of the Seed Creation Units were used by the Fund to purchase 760 ether at the price of $3,446.37 per ether on June 27, 2024 (exclusive of transaction and other costs incurred in connection with the conversion of the cash proceeds to ether, which were paid by the Seed Capital Investor). Thus, the ultimate total proceeds to the Fund from the sale of the Seed Creation Units were $2,619,241.20 (an amount representing 760 ether). Further, the transaction and other costs incurred in connection with the Seed Creation Units were paid by the Seed Capital Investor and not borne by the Fund. The Seed Capital Investor acted as a statutory underwriter with respect to the Seed Creation Units.
[4] On May 21, 2024, Franklin Resources Inc. (the “Seed Capital Investor”), an affiliate of the Sponsor, subject to conditions, purchased 4,000 Shares at per-Share price equal to $25.00 (the “Initial Seed Shares”). Delivery of the Initial Seed Shares was made on May 21, 2024. Total proceeds to the Fund from the sale of the Initial Seed Shares were $100,000. On June 27, 2024, the Initial Seed Shares were redeemed for $100,000 and the Seed Capital Investor purchased two creation units in a cash transaction comprised of a total of 100,000 Shares at a per-Share price based on 380 ether per Creation Unit (or 0.0076 ether per Share), for a total of 760 ether (the “Seed Creation Units”). The cash proceeds to the Fund from the sale of the Seed Creation Units were used by the Fund to purchase 760 ether at the price of $3,446.37 per ether on June 27, 2024 (exclusive of transaction and other costs incurred in connection with the conversion of the cash proceeds to ether, which were paid by the Seed Capital Investor). Thus, the ultimate total proceeds to the Fund from the sale of the Seed Creation Units were $2,619,241.20 (an amount representing 760 ether). Further, the transaction and other costs incurred in connection with the Seed Creation Units were paid by the Seed Capital Investor and not borne by the Fund.