Bitcoin ETF Outflows Reach $635M as BTC Tests Funds' Cost Basis

A $635 million reversal at a sensitive price

US spot bitcoin exchange-traded funds had their worst day in four months on Thursday, October 22. Net outflows came to about $635 million, the largest single-day withdrawal since June 25.25 Most outlets reported the same figure, give or take a few hundred thousand dollars. SoSoValue-based reports put it at $635.49 million, and Farside-based tallies put it at $635.6 million.514

The outflow mattered partly because of where bitcoin was trading. The price fell as low as $80,841 during the reporting period.2 That is very close to the roughly $81,500 that Glassnode estimates as the average price at which US spot ETFs bought their bitcoin.26 When the price trades at the average buyer's break-even point, a pullback stops looking routine and becomes a test of how committed those buyers are.

Who sold, and what it erased

The two largest issuers accounted for most of the redemptions. BlackRock's iShares Bitcoin Trust (IBIT) lost about $254.1 million and Fidelity's FBTC about $217.5 million, or roughly 74% of the day's net outflow between them.23 ARK 21Shares' ARKB lost $109.4 million, Grayscale's GBTC $29.5 million and Bitwise's BITB $27.4 million.3 Morgan Stanley's MSBT was the only fund with new money, at about $2.3 million.9

The timing made it worse. Over the three sessions before Thursday, the funds had taken in roughly $1.07 billion to $1.08 billion: about $527 million on October 19, $23 million on October 20 and between $525 million and $528 million on October 21.514 Monday's inflow was driven by a $665.2 million intake into IBIT, its largest daily inflow since October 2025.19 On that day IBIT was the only one of the twelve US spot bitcoin ETFs to take in money at all, which suggests the rebound was concentrated rather than broad.20 Thursday wiped out close to 60% of the three-day gain.2

Where the numbers diverge

The week's net result depends on when it was measured. Reports filed on Friday said Thursday's selling had cut the week's net inflows to about $443 million.25 By Friday's close, another $137.9 million had left, leaving the five-day total at about $301.2 million.14 IBIT alone took in $565.7 million over the week, while the rest of the funds together lost about $264.5 million.1412

That split is the key detail. The week was positive, ending two straight weeks of outflows, but almost entirely because of one large IBIT order on Monday.14 One newsroom called the Monday inflow "no turning point."20 Friday's numbers back that up. Month-to-date flows turned negative after Thursday, at a deficit of about $174.5 million.5 Spot bitcoin ETF assets stood at about $104.71 billion, and cumulative net inflows since the January 2024 launch were estimated at $57.32 billion.5

In short, this was money moving in and out tactically within a range, not a large exit. XS.com's Simon-Peter Massabni said the swings reflect cautious investors looking for short-term trades rather than committing capital for long periods.2 STS Digital's Jeff Anderson said bitcoin has been stuck between roughly $80,000 and $86,000, with traders waiting to see which way it breaks.9

Macro, leverage and the 7% trigger

Crypto-specific news did little to start the selloff. On Thursday the Nasdaq fell 2.6%, and bitcoin dropped about 3.2% from its Wednesday close. Crypto followed US stocks closely all week.39 Coverage also pointed to renewed worries about AI spending, tensions in the Middle East and rising oil prices.29 Bonds rallied as investors looked for safety, and crypto-linked stocks fell hard.35

Leverage made the move bigger. Estimates of long positions liquidated in the following 24 hours ranged from about $397 million to $431 million, depending on the data provider.98 CoinGlass counted roughly $406 million in total liquidations across nearly 90,000 traders.7

Research from DWF Labs suggests the ETF selling may continue. Its study of flows since January 2024 found that ETF selling tends to pick up once bitcoin closes about 7% below its 20-day high. At that point, average daily flows swung from about $74 million in inflows to $72 million in outflows, and selling increased in 19 of 24 cases.5 DWF puts the current threshold near $80,470. Bitcoin closed October 22 about 5.9% below its October 4 high of $86,530.5 Separately, Token Metrics counted 22 earlier days with outflows above $300 million and found bitcoin was often lower 7, 30 and 90 days later. It noted the sample is small.10

Based on those two findings, the $80,000–$81,500 zone matters more than an ordinary chart level. ETF holders' break-even point, a level that has historically triggered selling, and replenished buy orders all sit there. Glassnode found that bids around $80,000, largely used up in the October 15 selloff, had been rebuilt by October 20, though in smaller size.2 If bitcoin closes below $80,000, Glassnode sees its "True Market Mean" near $77,600 as the next major downside reference. Selling between $85,000 and $87,500 would likely limit any rebound.2

The crypto-company angle: treasuries near water

Public crypto companies face a similar squeeze. Glassnode estimates that corporate bitcoin treasuries hold their coins at an average cost of about $80,200, below the ETFs' estimate.2 Strategy, the largest corporate holder, owns 848,250 BTC bought at an average of $75,444. That leaves it only about 8% above cost when bitcoin trades in the low $80,000s.34

Strategy's problems this month were not only about the bitcoin price. Its shares fell 9.6% to about $137 on October 16 after MSCI moved to classify companies like it as "non-operating," which would make them ineligible for its global indexes. MSCI's final decisions are expected by November 11, with removals starting November 30.34 JPMorgan estimates that index funds could be forced to sell about $2.8 billion of shares.34 The selloff was broader than MSCI, though. On the same day, miners MARA and Riot fell as much or more, and Coinbase dropped 5.8%, even though it faces no index risk.32

On October 22, Strategy fell about 5% to $145, alongside steep declines at MARA, Coinbase and Robinhood.4035 On Friday, Coinbase fell 2.74% while bitcoin barely moved. One market wrap read that as caution about trading volumes, which drive Coinbase's revenue.39 Strategy's way of raising money is also under strain. Its STRC preferred stock has traded just below par, which limits the company's ability to issue shares to buy more bitcoin.36 In the latest filing week, it spent $192.4 million buying back STRC and only about $21.5 million on bitcoin.31

The regulatory vacuum behind the flows

Regulation also helps explain why the flows look tactical. On September 15, the Senate failed to advance the CLARITY Act, the long-awaited bill setting rules for how crypto markets are structured. The cloture vote failed 49–50, short of the 60 needed.21 The main disputes were ethics rules covering officials' crypto holdings, banks' objections to yield-paying stablecoins, and law-enforcement concerns about protections for developers.29 With the midterms close, legal analysts expect the bill to be reintroduced only after a new Congress convenes in January 2027.29

Regulators are moving ahead without Congress. On October 5, CFTC Chair Michael Selig published an early consultation on two frameworks: Regulation CTX, covering leveraged retail crypto trading, and Regulation CAM, a new category of CFTC-regulated crypto exchange.30 SEC Chairman Paul Atkins tied his agency's own rulemaking directly to the bill's failure.29 Comments on the SEC's proposed Regulation Crypto Assets were due October 20.21 The separate GENIUS Act stablecoin law is set to take effect January 18, 2027.26

The problem is durability. Rules written by agencies can be rewritten by a future SEC chair, while a statute is much harder to undo.28 For the large asset managers that dominate ETF flows, that means the case for long-term crypto exposure still lacks a firm legal base. Even so, the parts of the bill with the broadest agreement across both chambers include classifying bitcoin as a commodity.27 Bitcoin's own legal status is therefore not really in doubt. The bigger regulatory drag falls on the exchanges, stablecoin issuers and token-heavy businesses whose stocks have been falling.

The reading

This looks like a stress test, not a capitulation. The week still ended with net inflows, cumulative inflows remain far larger than one bad day, and bitcoin closed Friday at about $81,629, almost unchanged on the week.1439 But demand is thin and concentrated in one fund, the price sits on ETF buyers' break-even level, and the DWF trigger is close. That combination leaves little room for error.

The next catalyst is the Federal Reserve meeting on October 28–29.10 The Fed's September 16 rate hike was followed by about $295.9 million in ETF outflows before flows turned positive the next day.14 For the rest of October, the signals to watch are whether ETF demand spreads beyond IBIT and whether bitcoin holds the zone between $80,000 and $81,500.