Morgan Stanley has filed a registration statement with the SEC for an Ethereum Trust, days after submitting paperwork for spot Bitcoin and Solana ETFs. The Ethereum Trust would join the firm's expanding lineup of regulated crypto investment vehicles. Morgan Stanley began offering crypto access to its wealth management clients in October, signaling deeper institutional engagement. The recent filings reflect a broader trend among traditional financial institutions integrating digital assets into regulated portfolios, as U.S. crypto ETFs have grown rapidly over the past two years.