The Securities Exchange Commission (SEC) updated applications for multiple cryptocurrency exchange-traded funds (ETFs) on Feb. 6, signalling that the regulator is gradually advancing the approval process for cryptocurrency ETFs. Key developments include: Grayscale's Solana and Litecoin ETF applications have received formal acknowledgment from the SEC. BlackRock submitted a proposal for an iShares Bitcoin ETF to allow physical creation and redemption. Cboe filed multiple 19b-4 filings to list and trade the XRP ETF issued by Bitwise, 21Shares, Canary Capital and WisdomTree. The move is seen as an important signal for the SEC to gradually embrace cryptocurrencies as mainstream financial assets in the context of the new administration's more crypto-friendly policy. Analysts believe that the ETF filings of Litecoin, Solana and XRP may pave the way for more cryptocurrency ETF approvals.