The Cboe BZX Exchange has filed 19b-4 forms with the U.S. Securities and Exchange Commission, seeking approval for four Solana spot ETFs. The issuers involved in this initiative are 21Shares, VanEck, Canary Capital, and Bitwise. This move represents a significant step in integrating Solana, a prominent public blockchain, into mainstream financial products. The proposed ETFs aim to provide investors with direct exposure to Solana's market performance. The outcome of these filings could influence the broader acceptance and adoption of blockchain-based assets in traditional financial markets.