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ORGANIZATION (Details)
 8 Months Ended
Jun. 27, 2024
USD ($)
Ethereum
CreationUnits
$ / item
shares
May 21, 2024
USD ($)
$ / shares
shares
Feb. 08, 2024
Shares
Mar. 31, 2025
USD ($)
Ethereum
shares
Jul. 22, 2024
Ethereum
Organization [Abstract]          
Year of inception       2024  
Threshold multiples in which shares are issued | Shares     50,000    
Stock issued during the period shares new issues | shares       1,750,000  
Proceeds from issuance of shares       $ 42,553,442  
Payment to redeem shares [1]       $ 6,326,233  
Number of Ether per creation unit 380        
Number of Ether per share 0.0076        
Quantity of ether | Ethereum 760     11,780.2062 760
Cost of Ether per unit | $ / item 3,446.37        
Franklin Ethereum ETF [Member]          
Organization [Abstract]          
Year of inception       2024  
Threshold multiples in which shares are issued | Shares     50,000    
Stock issued during the period shares new issues | shares       1,750,000  
Proceeds from issuance of shares       $ 42,553,442  
Payment to redeem shares [2]       $ 6,326,233  
Number of Ether per creation unit 380        
Number of Ether per share 0.0076        
Quantity of ether | Ethereum 760     11,780.2062 760
Cost of Ether per unit | $ / item 3,446.37        
Initial Seed Shares [Member]          
Organization [Abstract]          
Stock issued during the period shares new issues | shares   4,000      
Shares issued, price per share | $ / shares   $ 25      
Proceeds from issuance of shares   $ 100,000      
Payment to redeem shares $ 100,000        
Initial Seed Shares [Member] | Franklin Ethereum ETF [Member]          
Organization [Abstract]          
Stock issued during the period shares new issues | shares   4,000      
Shares issued, price per share | $ / shares   $ 25      
Proceeds from issuance of shares   $ 100,000      
Payment to redeem shares $ 100,000        
Seed Creation Units [Member]          
Organization [Abstract]          
Stock issued during the period shares new issues | shares 100,000        
Proceeds from issuance of shares $ 2,619,241.2        
Number of seed creation units issued | CreationUnits 2        
Seed Creation Units [Member] | Franklin Ethereum ETF [Member]          
Organization [Abstract]          
Stock issued during the period shares new issues | shares 100,000        
Proceeds from issuance of shares $ 2,619,241.2        
Number of seed creation units issued | CreationUnits 2        
Ethereum [Member]          
Organization [Abstract]          
Number of Ether per creation unit 380        
Number of Ether per share 0.0076        
Quantity of ether | Ethereum 760     11,780.2062  
Cost of Ether per unit | $ / item 3,446.37        
Ethereum [Member] | Franklin Ethereum ETF [Member]          
Organization [Abstract]          
Number of Ether per creation unit 380        
Number of Ether per share 0.0076        
Quantity of ether | Ethereum 760     11,780.2062  
Cost of Ether per unit | $ / item 3,446.37        
[1] 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.
[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.