U.S. spot Bitcoin exchange-traded funds (ETFs) suffered one of their worst trading days on record Thursday, with $903 million in redemptions wiping out the previous day’s brief recovery.The latest withdrawals pushed November’s total outflows to $3.79 billion, surpassing February’s $3.56 billion and making it the heaviest month of ETF outflows since spot Bitcoin ETFs debuted in January 2024, according to data from Farside Investors.BlackRock’s IBIT Drives 63% of All November OutflowsBlackRock’s iShares Bitcoin Trust (IBIT) continues to lead the exodus:$2.47 billion withdrawn in November63% of all U.S. Bitcoin ETF outflows$1.02 billion withdrawn this week aloneCryptoQuant CEO Ki Young Ju called it IBIT’s largest weekly outflow in history.Fidelity’s Wise Origin Bitcoin Fund (FBTC) recorded the second-highest withdrawals:$1.09 billion outflows in November$225.9 million redeemed this weekTogether, IBIT and FBTC account for a staggering 91% of all U.S. spot BTC ETF redemptions this month.Bitcoin Drops to Seven-Month Low as ETFs Drain LiquidityBitcoin fell to $83,461 on Friday, its weakest level since April, according to CoinGecko. The drop followed nearly $1 billion in ETF outflows on Thursday.Several analysts warn the sell-off may not be over.QwQiao, co-founder of Alliance DAO, reiterated his September warning:“There’s a large cohort of dumb money who know nothing about crypto buying DATs and ETFs. This never ends well. Markets may need another 50% drawdown before a real bottom forms.”Placeholder co-founder Chris Burniske echoed the concern, arguing that the same ETF and digital asset treasury (DAT) flows that amplified Bitcoin’s rally are now accelerating the downturn.DAT Inflows Collapse 82% as Market Stress BuildsData from DefiLlama shows:DAT inflows in October dropped to $1.93 billion, down 82% from September’s $10.89 billionSharp decline followed $20 billion in crypto liquidations last monthNovember DAT inflows to date: just $505 millionOn pace to be the weakest DAT month of 2025The collapse in treasury demand signals weakening corporate appetite for crypto exposure — a trend that may intensify market fragility if ETF outflows continue.A Brutal Month for Bitcoin ETFs — and It’s Not Over YetWith several trading days still left in November, analysts warn total outflows could exceed $4 billion, deepening downside pressure on BTC as it trades near cycle lows.Bitcoin is currently hovering around $84,049, down nearly 15% over the past week.