US spot bitcoin funds shed $729.0 million across Wednesday and Thursday, erasing a positive start to October. BlackRock's IBIT supplied 43% of the first day's outflow and almost none of the second.
US spot bitcoin exchange-traded funds recorded net outflows on both Wednesday and Thursday, of $484.9 million and $244.1 million, according to the daily compilation published by Farside Investors. The two sessions together removed $729.0 million and turned a positive start to October into a deficit for the month.
October had opened the other way. Farside records net inflows of $102.7 million on 1 October and $189.9 million on 2 October, an outflow of $89.8 million on 5 October and an inflow of $118.8 million on 6 October, which is $321.6 million across the first four sessions. Subtracting the two outflow days from that figure leaves the group $407.4 million lighter for the month to date.
What changed between the two sessions was which fund was doing the selling. On Wednesday BlackRock's IBIT accounted for $207.7 million of the $484.9 million that left, about 43% of it and the largest single contribution of the day. Fidelity's FBTC lost $105.1 million and Ark's ARKB $101.7 million, with Grayscale's GBTC down $39.3 million, Bitwise's BITB down $27.6 million and VanEck's HODL down $3.5 million. Every other fund in Farside's table was unchanged.
On Thursday IBIT was almost untouched, down $5.5 million, and Fidelity carried the session instead. FBTC's $197.1 million out of the $244.1 million total is about four fifths of the day's outflow. ARKB lost $20.3 million, BITB $17.7 million and GBTC $8.2 million. Franklin's EZBC was the only fund taking money in, at $4.7 million.
The divergence runs back through the week. On 5 October IBIT took in $69.9 million while FBTC lost $74.5 million and ARKB $85.2 million, which produced that session's $89.8 million net outflow. On 6 October IBIT's $122.0 million was larger than the group's $118.8 million net inflow, because Grayscale's smaller Bitcoin Mini Trust gave up $11.0 million against $7.8 million going into Morgan Stanley's MSBT. For four consecutive sessions the headline number has been the product of two or three funds moving in opposite directions rather than a uniform move across all twelve funds Farside tracks.
The daily figures hold up against a second compilation. Decrypt's own flow tracker puts Wednesday's total at the same $484.9 million, with the same $207.7 million for IBIT and $105.1 million for FBTC. Its October figures match as well: $321.6 million over the first four sessions, and a $163.3 million deficit through Wednesday, both of which fall out of Farside's daily numbers exactly. Two datasets compiled separately and agreeing to the decimal is a reason to treat the daily totals as reliable, though Farside's page carries its own notice that the table is generated automatically and that the firm accepts no liability for errors in it.
Decrypt describes Wednesday's withdrawal as the largest in a single day since 25 June. Farside's published table begins on 21 September, so that comparison cannot be checked against it here.
Bitcoin traded at $82,422 on Friday morning, on CoinGecko's figures as of 10:40 UTC, little changed over the preceding 24 hours. Decrypt reported an intraday low of $81,749.83 on Thursday, around 6% below a peak of $86,978 reached earlier in the week. Flow data of this kind does not establish what moved the price, or whether the price moved the flows. Creations and redemptions are settled after the fact and reflect decisions taken at different points in a session, so a day's net figure and a day's price range are not two measurements of the same thing.
Neither direction is new for these funds. Late September ran the opposite way, with $2.39 billion arriving in the week to 25 September and $1.71 billion of that landing in the first two sessions. One fund dominating a single day's move has precedent too: ARKB supplied $114.9 million of a $201.9 million outflow at the end of August, and IBIT returned $205.9 million of the $216.7 million that came back the next session.
Across the two sessions Fidelity's fund lost more than any other single product, $302.2 million, with BlackRock's $213.2 million next and Ark's $122.0 million third. Those are the two days' figures added together rather than a trend.
