IBIT FBTC outflows lead a $643 million bitcoin ETF exit

The first full U.S. session after the Binance theft brought the heaviest redemptions in four months. IBIT FBTC outflows did most of the damage, with BlackRock's and Fidelity's funds together accounting for about two-thirds of the $643.2 million that left U.S. spot bitcoin ETFs on Friday, October 30.

What happened

Farside Investors' table shows BlackRock's IBIT down $233.7 million and Fidelity's FBTC down $201.0 million. ARK 21Shares' ARKB lost $129.5 million, Grayscale's GBTC $53.3 million and Bitwise's BITB $25.7 million. The other seven funds reported no flow, and none took in money.

The reversal erased a recovery. The funds had gathered $440.8 million from Monday to Thursday, CryptoSlate noted, so the week closed with $202.4 million of net outflows. CryptoWatchDesk calculated that October as a whole ended $515.9 million in the red for bitcoin ETFs after briefly turning positive on Wednesday.

Ether funds fared worse. They lost $155.7 million on Friday, their fifth losing session in a row, with BlackRock's ETHA alone shedding $76.6 million, and $1.6 billion over the month, according to the same data.

Why it matters

Flows are the clearest window into how traditional investors react to crypto shocks. Friday's exit was large but not extreme: the record daily outflow in Farside's history is about $1.1 billion, and IBIT still finished October with $932.1 million of net inflows, CryptoWatchDesk said. FBTC, by contrast, lost $754.5 million for the month.

That split suggests some rotation inside the category rather than a wholesale retreat. It also fits the picture from our bitcoin hack resilience piece, where ETF holders were seen as insulated from exchange risk but not from price risk. Earlier in the month, our bitcoin ETF cost basis report flagged how many buyers sit near or below breakeven, which makes redemptions more likely on bad days.

Flows record shares created and redeemed; they show what moved, not why, and a single day rarely sets a trend.

The breadth of Friday's selling stands out more than its size. Five of the 12 funds in Farside's table reported withdrawals and none attracted money, a pattern that usually reflects broad de-risking rather than a single large holder. Grayscale's GBTC, with the highest fee in the group at 1.50%, lost another $53.3 million, adding to cumulative net outflows of about $28 billion in Farside's records. Watching IBIT FBTC outflows side by side is useful because the two largest funds tend to set the tone for the rest of the category.

What's next

No ETF flows print before Monday, so the next read comes after Binance reopens withdrawals and before Tuesday's midterm elections. Farside's daily flow table updates after each session.

Repeat IBIT FBTC outflows early in the week would signal that Friday was more than a one-day reaction to the hack. A quick return to inflows would suggest institutions treated the dip as noise.

The October jobs report on Friday could matter more than crypto headlines, because rate expectations have driven ETF demand all autumn. Strong hiring that cements a December Fed hike would weigh on risk assets, while a soft print could revive the inflow streak seen earlier in October.