Following Grayscale's approval for XRP, SOL, and ADA ETFs, mid-cap cryptocurrencies with strong fundamentals and institutional interest are likely next candidates. Litecoin (LTC), with its fast transactions and 95% ETF approval odds, leads the pack. Polkadot (DOT) and Avalanche (AVAX), both with 90% approval odds, are strong contenders due to their interoperability and DeFi ecosystems. Hedera (HBAR) and Dogecoin (DOGE), also at 90%, could gain traction for their unique use cases and community support. SUI, with a 60% approval probability, is a dark horse due to its growing DeFi presence. These coins align with the SEC’s streamlined ETF approval framework.[](https://ambcrypto.com/sec-approves-grayscales-multi-crypto-index-etf-xrp-sol-ada-to-gain/)[](https://cryptopotato.com/spot-ripple-xrp-etf-coming-up-next-sec-approves-grayscales-multi-crypto-etf/)