$BTC The SEC reviews the refunds of BlackRock's Bitcoin ETF; delays decisions on Solana and Dogecoin ⏳ The SEC seeks public opinion on BlackRock's proposal to allow in-kind refunds for its spot Bitcoin ETF, aiming to improve efficiency and reduce costs. It also delayed decisions on Grayscale's Solana and Litecoin trusts, requesting more comments, highlighting the agency's caution regarding cryptocurrency ETFs.