US Spot Bitcoin ETFs Record $643 Million Outflow as Ethereum ETFs Lose $156 Million Following Binance Security Incident
What happened
US spot Bitcoin and Ethereum ETFs registered a combined $799.1 million in net outflows on October 30, 2026, erasing a four-day institutional buying streak in a single session.
The Context
* Heavyweights led the retreat: BlackRock’s IBIT shed $233.7 million while Fidelity’s FBTC lost $201 million, reversing $424–441 million in net gains accumulated over the previous four trading sessions. * Exchange contagion drove caution: Market participants moved into risk-off mode following an October 29 unauthorized withdrawal incident at Binance involving approximately $6.3 billion, prompting rapid portfolio rebalancing despite ETF assets residing with regulated custodians. * Ethereum sentiment deepened its slump: Spot Ethereum ETFs recorded $155.8 million in net redemptions—led by $76.6 million from BlackRock’s ETHA—extending an uninterrupted outflow streak to 23 consecutive sessions with over $1 billion pulled across October.
The Number
— the single-day net outflow from US spot Bitcoin ETFs on October 30, proving that even with roughly $100 billion in total assets, institutional liquidity remains highly reactive to counterparty headlines.
Takeaway
Watch for extended volatility across digital asset desk allocations as institutional managers weigh corporate balance sheet exposure against lingering centralized exchange counterparty concerns.
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