The cryptocurrency market is experiencing a surge in ETF applications. Multiple major management firms have submitted updated S-1 filings for the Spot Solana ETF to the U.S. Securities and Exchange Commission (SEC). While 21Shares, Franklin, and Canary have filed updated versions of their Spot Solana ETF filings, Grayscale has followed suit, also filing separate S-1 filings for Polkadot (DOT) and Cardano (ADA). Grayscale's Spot Solana ETF application listed a management fee of 2.5%. *This is not investment advice.