Flows into U.S.-listed altcoin spot exchange-traded funds (ETFs) remain sluggish, with fresh outflows in XRP (XRP) and Solana (SOL) products underscoring that a broader recovery in altcoin demand has yet to materialize. Data compiled by SosoValue for Sunday, March 30 (ET) showed the U.S. XRP spot ETF segment posting a daily net outflow of $2.31 million, reversing a two-session stretch of flat flows.