U.S. bitcoin spot ETFs recorded $450.4 million in net outflows on the 15th, reversing the previous session's $160.05 million inflow after a four-day outflow streak. Fidelity's FBTC led withdrawals with $214.8 million, followed by BlackRock's IBIT at $161.7 million, while Grayscale's GBTC, ARK Invest's ARKB and Bitwise's BITB also posted outflows. The reversal came ahead of the Federal Open Market Committee (FOMC), which was scheduled to meet on the 15th–16th after members voted 9–3 to hold the federal funds rate target range at 3.50–3.75%, with dissenters favoring a 25-basis-point increase. Bitcoin was trading at $75,712, down about 4% over 24 hours, with a market capitalization of roughly $1.52 trillion. Ether spot ETFs, by contrast, attracted about $121.1 million for a second straight session. The data shows that one day of inflows did not establish a sustained recovery in institutional bitcoin ETF demand.