According to ChainCatcher, as of now, multiple institutions have submitted spot cryptocurrency ETF applications for LTC, SOL, XRP, and others. Bloomberg Intelligence estimates that the approval probability for Litecoin, Solana, and cryptocurrency asset basket/index ETFs is 90%, XRP is 85%, DOGE and HBAR are 80%, and DOT, AVAX, Cardano, etc. are 75%. All 19b-4 filings for these projects have been confirmed by the SEC, with the final approval deadline concentrated in the second half of 2025.