US spot bitcoin ETFs recorded net outflows of $65.4 million on Monday 12 October 2026, and every dollar of it came from BlackRock’s iShares Bitcoin Trust (IBIT), according to Farside Investors (Farside Investors, accessed 13 October 2026). No other fund in the table reported a flow. October’s month-to-date net is now −$451.7 million, up from −$386.3 million after Friday’s small inflow, and the first week of the month ended as the largest weekly withdrawal since June.

The daily table

Flows below are Farside’s published daily totals in US$ millions; “Other funds” is our calculation (total minus IBIT, FBTC and GBTC). Outflows are negative.

Date (Oct 2026)TotalIBITFBTCGBTCOther funds
Thu 1+102.7+195.6−60.7−31.4−0.8
Fri 2+189.9+158.2+29.30.0+2.4
Mon 5−89.8+69.9−74.50.0−85.2
Tue 6+118.8+122.00.00.0−3.2
Wed 7−484.9−207.7−105.1−39.3−132.8
Thu 8−244.1−5.5−197.1−8.2−33.3
Fri 9+21.1+22.4−3.60.0+2.3
Mon 12−65.4−65.40.00.00.0
Month to date−451.7+289.5−411.7−78.9−250.6

Two cross-checks. First, the 5–9 October week sums to −$678.9 million on Farside’s numbers; CoinDesk, citing SoSoValue, put it at $681 million, the largest weekly withdrawal since June (CoinDesk, 12 October 2026). The small gap is a difference in data providers. Second, TFTC’s October table, which we use as a second source, shows daily figures within $0.1 million of Farside’s except for 7 October, where it records −$487.1 million against Farside’s −$484.9 million, and a month-to-date through 9 October of −$388.6 million against our −$386.3 million (TFTC, accessed 13 October 2026). We use Farside throughout. Farside’s Monday row can be revised as late-reporting funds are added; our previous update is here.

Reading Monday: one fund, one direction

IBIT’s −$65.4 million is its third outflow day in the last four sessions (−$207.7 million on 7 October, −$5.5 million on 8 October, +$22.4 million on 9 October, −$65.4 million on 12 October). It is small beside the −$484.9 million of 7 October, but it matters for composition: for the first time this month a session’s whole outflow came from the largest fund rather than from Fidelity’s FBTC or the smaller funds. IBIT is still the only major fund with a clearly positive month, at +$289.5 million, against FBTC’s −$411.7 million, GBTC’s −$78.9 million and a combined −$250.6 million for everything else. In other words, October’s net outflow is not a story about IBIT; it is about Fidelity, Grayscale’s GBTC and the smaller issuers, which together have shed $741.2 million, more than offsetting IBIT’s inflows.

Flows and price: four days, same direction

On the four sessions in the table with a clear sign, the direction of ETF flows matched the direction of bitcoin’s UTC-day move on Coinbase: 7 October (−$484.9 million; bitcoin −2.65%), 8 October (−$244.1 million; −1.90%), 9 October (+$21.1 million; +1.04%) and 12 October (−$65.4 million; −2.31%). Four days is not a statistic, and the causality is unclear — ETF flows are reported after the US close and partly reflect that day’s price action, so they are as likely to follow a fall as to cause one. The sizes tell the same story: Monday’s outflow, about 9% of the $729.0 million that 7–8 October took out, accompanied a 2.3% decline, so most of the price move was not about ETF demand at all. As we showed in today’s market report, the dollar index closed at a 12-month high that day.

Other buyers, for scale

Strategy bought 250 bitcoin between 5 and 11 October at an average of $86,194, according to Investing.com’s report citing Michael Saylor (Investing.com via Yahoo Finance, 12 October 2026). That is about $21.5 million (250 × $86,194, our arithmetic), roughly a third of Monday’s ETF outflow and about 3% of the week’s. The ETFs remain the largest marginal flow in the market in either direction, which is why the daily table is worth checking even when the numbers are small.

What to watch next

Tuesday’s flows should appear on Farside on Wednesday morning, around the 12:30 UTC release of September CPI; Wednesday’s flows, published on Thursday, will be the first to reflect an actual inflation print. The consensus is for headline CPI of about +0.6% on the month and core of +0.2% (FinancialJuice and investingLive, 11–12 October), and our Field Guide #57 has a scorecard for reading it. Bitcoin itself was at $83,508 at 06:16 UTC on Tuesday, 2.2% above Monday’s close, after a low of $80,927.

Method: bitcoin and ether prices, highs, lows and closes are Coinbase Exchange candles (UTC day or UTC hour) pulled by Bitcoin Mastery at about 06:15 UTC on Tuesday 13 October 2026; the 13 October candle is still open at that time, so any closing figure quoted is the 12 October close unless stated. Dollar-index and Brent figures are Yahoo Finance daily closes (DX-Y.NYB and BZ=F continuous front-month); other third-party figures are attributed to their source and date. Fund flows are Farside Investors’ daily totals as retrieved at about 06:15 UTC on 13 October; the 12 October row is the most recent and may be revised.

Disclaimer: This article is for informational purposes only and does not constitute investment advice. Bitcoin and other cryptocurrencies are volatile and you can lose some or all of the money you put in. Nothing here is a recommendation to buy, sell or hold bitcoin, any exchange-traded fund, any listed security or any other asset, and the technical levels, probabilities and scenarios discussed are descriptions of published data, not forecasts. Do your own research and consult a licensed financial advisor before making investment decisions.