Bitcoin ETFs sink into October outflows with $643M exit after Binance hack

What happened

Investors withdrew $643 million from US-listed spot Bitcoin exchange-traded funds on Friday, ending four consecutive days of inflows and leaving October with $515 million in net outflows, its first negative month since June. The funds still had about $361 million in net inflows for the year through October.

Confirmed

Global impact / market context

Withdrawals can reduce demand for Bitcoin held by the funds and, if managers sell Bitcoin to meet redemptions, add selling pressure during market volatility. The reported hack and a warning about custody—the way assets are held—could also make security concerns affect investor decisions and fund flows.

Analyst inference

Bitcoin funds remained positive for the year despite October’s outflows, while US spot Ether funds recorded $1.61 billion in October outflows. This contrast shows redemptions reached both asset groups; continued withdrawals could reduce fund assets and potentially weaken buying demand for the underlying cryptocurrencies.

Analyst inference

What to watch

1. Check whether Bitcoin ETF flows return to positive territory after Friday’s withdrawals; sustained inflows could restore fund buying demand, while further outflows could increase selling needs. Analyst inference
2. Watch for confirmed details about the Binance hack and any response, because the article connects the incident with crypto-market volatility but reports no ETF loss from it. Analyst inference
3. Look for a response to the warning that IBIT relies heavily on Coinbase to hold Bitcoin; any change in custody arrangements could affect operating costs and investor confidence. Analyst inference

Affected assets

• BTC — Bitcoin
• ETH — Ethereum

Evidence

• cointelegraph.com