On December 4th, Grayscale announced its intention to transition the Grayscale Solana Trust Fund (GSOL) into an **Exchange-Traded Fund (ETF)**, a significant move in the evolving landscape of cryptocurrency investment. Established in 2021, the trust fund boasts **total assets under management** of approximately **$134 million**. This marks Grayscale as the fifth asset management firm to pursue a **Solana ETF**, highlighting the growing institutional interest in SOL-based investments. The submission of a **19b-4 application** to the New York Stock Exchange Arca signals Grayscale’s commitment to navigating regulatory frameworks. This application, mandated by the **U.S. Securities and Exchange Commission (SEC)**, is essential for exchanges to inform the SEC of any proposed changes in rules from self-regulatory organizations (SROs), underlining the importance of compliance in launching new financial products. This strategic initiative reflects the increasing legitimization of cryptocurrencies within mainstream financial markets.