US spot Bitcoin ETFs hemorrhaged $265.4 million on July 31, snapping a short-lived return to inflows. BlackRock’s iShares Bitcoin Trust, better known as IBIT, accounted for nearly half of the damage, posting $122.7 million in redemptions.
Just one day earlier, these same funds had attracted $233.1 million in net inflows, with IBIT alone pulling in $183.4 million.
The numbers behind the reversal
IBIT’s $122.7 million exit wasn’t even close to its worst day. That distinction belongs to a session in May 2026, when the fund recorded roughly $528 million in single-day outflows.
Fidelity’s FBTC came in second on the outflow leaderboard, shedding $54.8 million. Together, the two largest spot Bitcoin ETFs by assets were responsible for about $177.5 million of the day’s total withdrawals.
