In a significant development for institutional cryptocurrency adoption, Morgan Stanley has filed S-1 registration statements with the SEC for spot Bitcoin and Solana Exchange-Traded Funds (ETFs). This move is seen as a strong indicator of deep institutional commitment to the crypto space and could encourage other major investment firms to launch their own in-house branded Bitcoin ETFs. This comes amidst a period of robust ETF inflows, with spot Bitcoin ETFs seeing over $1.2 billion in flows in the first two trading days of the year, and Bank of America allowing financial advisors to recommend Bitcoin ETFs to clients.