According to Odaily, Nasdaq has submitted a proposal to the U.S. Securities and Exchange Commission (SEC) on June 7, aiming to include XRP, Solana (SOL), Cardano (ADA), and Stellar Lumens (XLM) in its crypto index benchmark. This change pertains to the Hashdex Nasdaq Crypto Index ETF (NCIQ), which plans to expand its tracking from the existing Nasdaq Crypto US Settlement Price Index (NCIUS) to the broader Nasdaq Crypto Index (NCI) that encompasses nine tokens. Currently, the NCI index includes cryptocurrencies such as Bitcoin (BTC) and Ethereum (ETH), but due to current SEC regulations, the ETF can only hold BTC and ETH, resulting in tracking error risks. If approved, the ETF will be able to invest in all index component assets, with a final decision expected by November 2, 2025. This move could mark a significant step towards diversification for U.S. crypto ETFs.