The US SEC acknowledges filings for Solana-based ETFs, indicating a potential approval.The approval odds for Solana-based ETFs are estimated at around 70% by Bloomberg experts.Cboe BZX Exchange has filed proposed rule changes to list spot Solana ETFs from institutions like 21Shares and VanEck.Litecoin and Dogecoin are predicted as more likely to be approved than Solana by Bloomberg experts.