--- title: "US spot Bitcoin ETFs post $643.2 million single-day outflow after Binance hack" description: "U.S. spot Bitcoin ETFs shed $643.2 million on Friday, the first full trading session after attackers began draining roughly $6.4 billion from Binance,…" language: en canonical: "https://whycoinmoves.com/en/events/bitcoin-bitcoin-etf-investors-head-exits-d91cf427f988df" published: 2026-11-01T16:03:57.000Z updated: 2026-11-01T17:04:00.000Z indexable: true --- # US spot Bitcoin ETFs post $643.2 million single-day outflow after Binance hack U.S. spot Bitcoin ETFs shed $643.2 million on Friday, the first full trading session after attackers began draining roughly $6.4 billion from Binance,… Attributed sources: [Decrypt]() ## Key facts U.S. spot Bitcoin ETFs shed $643.2 million on Friday, the first full trading session after attackers began draining roughly $6.4 billion from Binance, Decrypt reported. That was their biggest single-day outflow of October, erasing a four-day, $441 million inflow run and leaving the funds down about $202 million for the week and roughly $516 million for October. Evidence strength: Single source, 1 publisher group(s) (Decrypt). After site detection, observed returns were 5 minutes: +0.01% (Nov 1, 2026, 16:03 → Nov 1, 2026, 16:08, UTC; Gate · USDT); 1 hour: +0.16% (Nov 1, 2026, 16:03 → Nov 1, 2026, 17:03, UTC; Gate · USDT) In the preceding 30 days, the 99th percentile of absolute hourly returns was 1.23% (OKX · USDT; cutoff Nov 1, 2026, 16:03, UTC). ## Returns after site detection | Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source | | --- | --- | --- | --- | --- | --- | | 5 minutes | +0.01% | +0.01% | 0.00 pts | Nov 1, 2026, 16:03 → Nov 1, 2026, 16:08 | Gate · USDT | | 1 hour | +0.16% | +0.16% | 0.00 pts | Nov 1, 2026, 16:03 → Nov 1, 2026, 17:03 | Gate · USDT | ## Historical hourly baseline | Metric | Value | | --- | --- | | Coverage | 100.0% (720/720) | | Median absolute hourly return | 0.14% | | 99th percentile of absolute hourly returns | 1.23% | | BTC beta | 1.00 | | Source / cutoff (UTC) | OKX · USDT / Nov 1, 2026, 16:03 | ## Claims and open questions - Decrypt reported that U.S. spot Bitcoin ETFs lost $643.2 million on Friday, their biggest single-day outflow of October, after attackers began draining roughly $6.4 billion from Binance at 4:05 p.m. ET Thursday. - According to Decrypt, the selling erased a four-day, $441 million inflow run, leaving the Bitcoin funds down about $202 million for the week and roughly $516 million for October, with cumulative net inflows since launch at $57.4 billion. - Decrypt reported that Ether ETFs lost $155.7 million on Friday and Solana ETFs shed $10.8 million, while Bitcoin fell about 4% to roughly $76,400 on Friday and more than $1.3 billion in leveraged positions were liquidated. - What the final scope of the Binance loss will be, and whether Binance's pledge to cover all losses with company funds and an emergency reserve is confirmed through an official statement or reserve disclosure. - Whether the $643.2 million Bitcoin ETF outflow figure is confirmed in the issuers' own daily flow reports. ## Source evidence - [Bitcoin ETF Investors Head for the Exits After Record Binance Hack]() — Decrypt; published Nov 1, 2026, 16:01; received Nov 1, 2026, 16:03 (UTC). ## Recent BTC events and market reactions - [Binance begins phased crypto withdrawals, starting with bitcoin, after $6.3 billion hack]() — Published Nov 1, 2026, 10:35 (UTC) · Single source (1 publisher) · Security · 5m -0.02% / 1h -0.16% - [Strive CEO says Binance hack hasn't changed his long-term Bitcoin case]() — Published Oct 31, 2026, 15:26 (UTC) · Single source (1 publisher) · Security · 5m +0.09% / 1h +0.13% / 24h +0.75% - [Nasdaq-listed Next Technology authorizes sale of up to $450 million in bitcoin]() — Published Oct 31, 2026, 12:49 (UTC) · Single source (1 publisher) · Security · 5m -0.02% / 1h +0.04% / 24h +0.46% - [Wall Street analysts call Binance hack a buying opportunity for crypto stocks]() — Published Oct 30, 2026, 20:06 (UTC) · Single source (1 publisher) · Security · 5m +0.06% / 1h -0.35% / 24h +0.90% - [Binance confirms record $6.4 billion hack as Bitcoin holds steadier than in 2018]() — Published Oct 30, 2026, 18:45 (UTC) · Single source (1 publisher) · Security · 5m -0.13% / 1h +0.13% / 24h +1.31% - [Full coin archive]() ## Research for this archive - [Crypto hacks and price impact: Bybit and Cetus case studies]() - [Why is crypto moving? How to check the evidence behind a price explanation]() - [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns]() - [Will Bitcoin go back up? Every crash since 2011 and its recovery time]() Evidence levels describe source coverage, not the probability that a report is true. Price moves and their timing cannot establish a cause; minute samples show an observed interval and alert thresholds are heuristics. Explanations are model-assisted, with citations and figures checked. Source titles stay in their original language; full articles are not republished. [Methods and limitations]()