BlackRock's IBIT took in $871 million last week as bitcoin swung on Iran headlines. U.S. spot bitcoin ETFs recorded about $1.9 billion of net inflows over the same week, according to SoSoValue data cited by X trackers. April 17 alone brought $663.89 million of total net inflows, with IBIT taking $283.96 million and Fidelity's FBTC adding $163 million. Bitcoin briefly traded near $70,900 before recovering toward $75,600, while Fidelity and Grayscale also posted outflows on April 15.