Grayscale has introduced the Ethereum Mini Staking ETF, offering the highest staking rewards among Ethereum ETPs with fees under 1%. The fund, which is not registered under the Investment Company Act of 1940, provides a low gross expense ratio of 0.15% but carries significant risks and volatility. The ETF allows investors to participate in Ethereum's proof-of-stake network, where validators earn rewards by staking Ether. However, the fund's staked Ether is subject to risks such as illiquidity during lock-up periods, market volatility, and potential security breaches. Foreside Fund Services, LLC serves as the marketing agent for the fund.