Grayscale Investments has submitted an S-1 filing to the U.S. Securities and Exchange Commission (SEC) for the launch of an AAVE exchange-traded fund (ETF). This move marks Grayscale's continued expansion into the decentralized finance (DeFi) sector, aiming to provide investors with regulated access to AAVE, a leading DeFi protocol. The filing is part of Grayscale's broader strategy to offer a range of crypto-based investment products.