Spot Bitcoin ETFs Bleed $643 Million Day After Record $6.3 Billion Binance Hack

U.S. spot bitcoin exchange-traded funds shed $643.3 million in net outflows on Friday, their largest single-day redemption since June 25, according to SoSoValue data. The retreat came one day after attackers drained approximately $6.3 billion from Binance's hot wallets in the largest crypto hack on record.

Spot Ethereum ETFs posted $155.9 million in net outflows the same day, their worst session since October 7. For the week ending October 30, the bitcoin funds lost $202.6 million in aggregate, while the ether funds bled $431.5 million.

The FBI has attributed Thursday's breach to North Korean hackers. The scale is without precedent: the $6.3 billion loss exceeds any prior exploit in the industry's history, and the market response extended well past the ETF wrapper. Binance said it recorded roughly $3.64 billion in net outflows in the first nine and a half hours after restoring withdrawals on Sunday.

What does the outflow actually change for ETF holders?

Practically nothing, according to Jeff Ko, chief analyst at ViaBTC, who characterized the move as a sentiment shock rather than a structural response. "Spot ETF holders have no direct exposure to Binance, since the underlying BTC is held with regulated custodians. And in context, a roughly $640 million outflow is actually modest against the total ETF assets," Ko said.

Rick Maeda, head of markets at Laevitas, framed the figure in proportional terms. Spot bitcoin ETFs hold $98.14 billion in total net assets, meaning Friday's $643 million redemption amounts to less than 1% of the complex. "In scale, the $643 million outflow is still under 1% of spot BTC ETF assets so this was simply a de-risking day, and not capitulation or a loss in institutional confidence," Maeda said.

That distinction matters for allocators watching flow data. A sub-1% redemption against a $98 billion base is, per the arithmetic, roughly one dollar pulled for every 150 dollars held — a routine de-risking event in any institutional product of comparable size.

How long might the caution persist?

Analysts expect restraint rather than a snap-back. Maeda pointed to the Bybit hack in the first quarter of 2025 as the closest precedent: "I would expect stabilization or modest outflows in the near term rather than a snap-back as long as the hack can be contained at its current situation."

Dominick John, analyst at Zeus Research, agreed that near-term demand is likely to remain cautious, with a sustained recovery in ETF inflows dependent on improved market stability, restored liquidity and stronger investor confidence.

Sentiment indicators support the de-risking read. The Crypto Fear and Greed Index stood at 37 on Sunday, in fear territory. "The current sentiment in crypto seems to be one of caution rather than fear," said Maeda, who expects markets to remain headline-sensitive as traders track updates on the hack alongside the macro calendar, including the U.S. midterms.

Prices, notably, held. Bitcoin rose 1% over the past 24 hours to $78,491 as of 11:20 p.m. ET Sunday, and ether climbed 1.3% to $2,296, according to The Block's price data.

Ko noted that the midterm elections may prove the more consequential variable for the asset class. "BTC has absorbed the hack quite resiliently," he said. "Attention is now shifting toward U.S. midterm elections, where the balance of power in Congress could have meaningful implications for how crypto market structure legislation moves forward."

The practical question for market participants is whether flows stabilize before the midterms. With the FBI attribution public and laundering activity already tracked on-chain, the next weekly flow print will show whether Friday marked the peak of the de-risking or the start of a longer institutional pause.