BlackRock's IBIT supplied $403 million of Friday's $411.9 million net withdrawal, about 88 percent of the group's gross outflows. SoSoValue data puts the twelve funds about $914.1 million negative for 2026 after they entered the week roughly $368 million positive.
Fidelity's FBTC led the withdrawals with $199.9 million, one session after a $236.7 million inflow at the same fund single-handedly turned the group positive. The month's four completed sessions now total $869.8 million in net outflows.
Fidelity's FBTC supplied $236.7 million of the November 4 inflow while BlackRock's fund extended a four-session outflow streak to $935.2 million. The three disclosed inflows net of IBIT come to $70.6 million, about $4 million short of the group total.
US spot bitcoin funds took in about $2.39 billion over the week to September 25, and $1.71 billion of that arrived in the first two sessions, with inflows shrinking every day afterward. BlackRock's IBIT and Fidelity's FBTC together accounted for roughly four fifths of the total.