The U.S. crypto ETF market is poised for significant growth as the SEC finalizes generic listing standards, facilitating approvals for both single-asset and index ETFs. This development could soon see assets like Litecoin and Solana included in ETFs, with amendments for Solana ETFs expected by September 26. Hashdex's Nasdaq Crypto Index US ETF has already expanded its holdings beyond Bitcoin and Ethereum to include XRP, Solana, Stellar, and Cardano, with plans to potentially include up to 200 assets. Industry experts anticipate that while new ETFs might initially lag behind Bitcoin and Ethereum in performance, broader index funds could eventually lead to more diversified investment flows. Bitwise CIO Matt Hougan predicts the launch of several new crypto ETFs by Halloween, marking a new era for crypto investing.