v3.25.2
N-2 - $ / shares
6 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Jun. 04, 2024
Cover [Abstract]      
Entity Central Index Key 0002000046    
Amendment Flag false    
Securities Act File Number 001-42163    
Document Type 10-Q    
Entity Registrant Name Fidelity® Ethereum Fund    
Entity Address, Address Line One 245 Summer Street V13E    
Entity Address, City or Town Boston    
Entity Address, State or Province MA    
Entity Address, Postal Zip Code 02210    
City Area Code 800    
Local Phone Number 343-3548    
Entity Emerging Growth Company true    
Entity Ex Transition Period false    
General Description of Registrant [Abstract]      
Risk Factors [Table Text Block]

Item 1A. Risk Factors.

In addition to the other information set forth in this report, you should carefully consider the risk factors disclosed in our Prospectus dated July 31, 2025 (Registration No. 333-278249).

   
Share Price     $ 38
NAV Per Share $ 24.83 $ 33.34