Fidelity Investments has filed for the Fidelity Solana Fund, signaling a potential entry into Solana-based ETFs.If approved, Fidelity's move could boost Solana's credibility and inspire other asset managers to explore Solana-based products.Fidelity Investments is one of the largest investment management firms globally, managing over $5 trillion in assets.A Solana ETF would provide a regulated investment vehicle, making it easier for investors to access Solana.