Grayscale, VanEck, Bitwise, Canary, Franklin Templeton, Fidelity, and CoinShares have filed S-1 amendments for their Solana ETFs. This move indicates a significant interest in expanding investment products related to Solana, a leading blockchain platform known for its high throughput and low transaction costs. The filings suggest that these firms are preparing to offer Solana-based exchange-traded funds, potentially increasing institutional access to Solana's ecosystem.