The New York Stock Exchange (NYSE) has filed an application with the U.S. Securities and Exchange Commission (SEC) to convert Grayscale's Solana Trust into an Exchange-Traded Fund (ETF), mirroring the strategy it used for its Bitcoin ETF. This move aligns with a growing trend of applications for altcoin ETFs, including recent filings for XRP -focused products by firms like WisdomTree, VanEck, and 21Shares. Grayscale’s Solana ETF aims to provide institutional investors a safer, regulated way to invest in Solana ( SOL ) through a spot ETF listed on a national exchange. If approved, Solana would become the third cryptocurrency with institutional investment opportunities in the U.S., following Bitcoin and Ethereum. Solana's price has already reacted to the news, jumping nearly 5% in one day. Grayscale is not alone in pursuing Solana ETFs. At least four other asset management firms, including VanEck, 21Shares, Bitwise, and Canary Capital, have filed similar applications with the SEC in November. This increasing interest reflects growing institutional enthusiasm for altcoins as Bitcoin's dominance in the market declines. The SEC has reportedly engaged in quiet negotiations over these filings, signaling potential progress. Approval of a Solana ETF would mark a major milestone for regulatory acceptance of cryptocurrencies in the U.S. Such a move could pave the way for further institutional investments and likely fuel a bullish trend in the altcoin market. Analysts predict a broader "altcoin season," with renewed interest in other cryptocurrencies like XRP. WisdomTree’s XRP ETF filing has also garnered attention, with Coinbase named as the custodian for the fund. The potential impact of these ETFs extends beyond individual cryptocurrencies. Experts suggest that regulatory approval could significantly boost the entire crypto market, similar to the effects seen when Bitcoin ETFs gained approval. If institutional demand follows suit, these products could drive substantial market growth. The crypto industry is also optimistic about changes in U.S. regulatory policies. Reports suggest that Donald Trump, in his second term, may appoint a pro-crypto SEC Chair, potentially creating a friendlier environment for cryptocurrency regulations. This shift could lead to multiple ETF approvals in the near future, intensifying momentum in the altcoin market. While the SEC’s decisions remain pending, anticipation continues to grow. If these ETFs gain approval, they could trigger significant institutional investment inflows, boosting confidence and interest in the broader cryptocurrency market.