币界网报道：Invesco and Galaxy Digital have jointly filed an application with the U.S. Securities and Exchange Commission (SEC) to launch a spot Solana (SOL) exchange-traded fund (ETF), marking another significant move in the crypto ETF space. The proposed "Invesco Galaxy Solana ETF" aims to track the performance of Solana's native token, SOL, by holding the asset directly. This filing follows the recent approval of spot Bitcoin ETFs and the ongoing review of Ethereum ETFs by the SEC. Analysts suggest the move reflects growing institutional interest in alternative layer-1 blockchain assets beyond Bitcoin and Ethereum. However, regulatory hurdles remain as the SEC has previously classified SOL as a security in lawsuits against crypto exchanges. The filing comes amid Solana's rising prominence in decentralized finance (DeFi) and non-fungible token (NFT) sectors, with its ecosystem seeing increased developer activity and user adoption. Market observers note that approval could provide mainstream investors with regulated exposure to Solana's ecosystem while potentially setting a precedent for other altcoin ETFs.