According to SoSoValue and Santiment, U.S. spot Bitcoin ETFs recorded about $648 million to $648.6 million in net outflows on May 18, the largest single-day withdrawal since late January, with Santiment specifying it was the biggest since January 29. BlackRock’s IBIT led redemptions at roughly $448 million, or $448.33 million in a more precise figure. The pullback came as Bitcoin fell below $78,000 amid geopolitical tensions and inflation concerns, even as a separate report said long-term Bitcoin holders continued accumulating on-chain. Despite the outflows, total net assets across U.S. spot Bitcoin ETFs remained at $100.485 billion and cumulative net inflows stood at $57.691 billion. U.S. spot Ethereum ETFs also stayed under pressure, posting $86.31 million in net outflows on May 18 and another $62.30 million on May 19, led by BlackRock’s ETHA outflows, while Bitwise’s ETHW recorded modest inflows on May 19.