I think this estimate is too conservative, I estimate it should be above $400 billion!
Wintermute: Spot Ethereum ETF is expected to inflow $4 billion in the next year, and initial demand may be lower than expected
Market maker Wintermute believes that the Ethereum ETF can attract a maximum of $4 billion in inflows from investors in the next year. This is lower than the $4.5 billion to $6.5 billion expected by most analysts, which is about 62% less than the $17 billion that the Bitcoin ETF has attracted since trading in the United States in the past six months. Wintermute expects that the price of Ethereum may rise by as much as 24% in the next 12 months, driven by these inflows.
U.S. regulators rejected the issuer's request to allow the Ethereum ETF to pledge its holdings of cryptocurrencies, which could generate income and be shared with investors. Wintermute said in its report: "This loss reduces the competitiveness of the ETHETF compared to direct holding, because investors can still benefit from staking."