The SEC has postponed its decisions on several spot altcoin ETFs, including those for Dogecoin, Hedera, and Avalanche, as it navigates under new leadership. This delay follows a request for updates from Solana ETF issuers, indicating potential progress for that approval within the next few months. Firms like VanEck and 21Shares have expressed concerns over the SEC's lack of adherence to a first-to-file approach.