Matt Hougan, chief information officer at Bitwise, said the U.S. spot Ethereum ETF could attract net inflows worth $15 billion in the first 18 months after listing. Hougan compared the relative market capitalization of Ethereum to Bitcoin, and he expects investors to allocate by the market capitalization of the Bitcoin spot ETF and the Ethereum spot ETF ($1.20 trillion and $405 billion). This would give about 75% weighting to the Bitcoin spot ETF and about 25% weighting to the Ethereum spot ETF. Assets managed through spot bitcoin ETFs have now surpassed $50 billion, and Hougan expects that number to reach at least $100 billion by the end of 2025. That number will rise as the product matures and receives approval on platforms such as Morgan Stanley and Merrill Lynch.