According to Farside Investors (@FarsideUK), BlackRock’s U.S. spot Bitcoin ETF (IBIT) recorded a daily net outflow of $355.5 million, as reported in its X post on Nov 21, 2025 and reflected on its ETF flow dashboard (source: Farside Investors on X; Farside BTC ETF flows page at farside.co.uk/btc). Farside’s data table lists BlackRock at -355.5 million in the U.S. Bitcoin ETF daily flows, confirming the reported figure for trading reference (source: farside.co.uk/btc; Farside Investors @FarsideUK).