BlackRock's IBIT Sees $1.3 Billion Dark Pool Sale Amid Bitcoin ETF Outflows
On May 27, 2026, a $1.3 billion block of BlackRock's iShares Bitcoin Trust (IBIT) was traded in a dark pool, one of the largest off-exchange Bitcoin ETF transactions since launch. The trade coincided with $527.84 million in daily IBIT outflows and $334 million in weekly U.S. spot Bitcoin ETF outflows, extending a multi-week withdrawal trend. Bitcoin slipped 1.4% to around $77,000, trading 40% below its all-time high. Analysts viewed the block sale as a portfolio adjustment rather than a disorderly liquidation, but it underscored weakening institutional demand.
Cross-source coverage
Wire timeline
BlackRock's Bitcoin ETF IBIT suffers second-worst daily outflow ever
BlackRock's iShares Bitcoin Trust ETF (IBIT) experienced its second-largest daily net outflow on May 27, 2026, with $527.84 million exiting the fund. This follows Bitcoin's 40% decline from its all-time high of $126,080 reached in October 2025. IBIT's price also fell 40% from its record high of $71.82 to close at $42.45. The worst outflow day for IBIT remains January 30, 2026, with $528.30 million. Despite the outflow, IBIT has cumulative net inflows of $64 billion and net assets of $59.48 billion. The broader U.S. spot Bitcoin ETF market, comprising 13 funds, holds $96.45 billion in total net assets as of May 27.
Yahoo FinanceBlackRock's Bitcoin ETF IBIT Records Second-Worst Daily Outflow Ever
BlackRock's iShares Bitcoin Trust ETF (IBIT) suffered its second-largest daily net outflow on May 27, 2026, with $527.84 million exiting the fund. This follows its worst day on January 30, 2026, when outflows reached $528.30 million. The outflow coincides with Bitcoin trading 40% below its all-time high of $126,080, currently at $73,388.24. IBIT closed at $42.45, also down 40% from its record high of $71.82. Despite the outflow, IBIT has cumulative net inflows of $64 billion and net assets of $59.48 billion. The broader U.S. spot Bitcoin ETF market, comprising 13 funds, has cumulative net inflows of $56 billion and total net assets of $96.45 billion as of May 27.
Yahoo FinanceMysterious trader dumps $1B from BlackRock Bitcoin ETF via dark pool
On May 26, 2026, a single block of 29.2 million shares of BlackRock's iShares Bitcoin Trust (IBIT) was traded at $43.16 per share, totaling approximately $1.289 billion. The transaction was executed off-exchange through a dark pool at 10:30:34 AM, flagged in Bloomberg's trade recap with condition codes pointing to FINRA's TRF Carteret facility. Bloomberg ETF analyst Eric Balchunas confirmed the trade on X, calling it the largest such trade he has ever seen. Alex Thorn of Galaxy Digital described it as a 'massive $1.289 billion IBIT block sale by unknown party.' The trade was executed quietly to avoid moving the market, but IBIT still fell 1.58% during market hours, hitting a near-month low of $42.32. The identity of the seller remains unknown.
Yahoo FinanceBlackRock Faces $1B Bitcoin ETF Outflow as Tokenized Fund Hits $2.5B
BlackRock experienced a $1.01 billion outflow from its iShares Bitcoin Trust (IBIT) ETF between May 18-22, 2026, driven by investor redemptions rather than a strategic shift by the firm. The selling involved daily transfers of nearly 15,000 BTC to Coinbase Prime for settlement. Despite the outflows, BlackRock's tokenized fund business surpassed $2.5 billion in assets, indicating continued commitment to blockchain finance. A record $1.29 billion dark pool block trade of IBIT on May 26 intensified market fears. Bitcoin briefly dropped to $74,300 before recovering to ~$77,000. US spot Bitcoin ETFs saw eight consecutive days of net outflows, but still hold roughly 1.3 million BTC (7% of circulating supply). Analysts noted the rebound was driven by speculative futures activity rather than spot demand.
Yahoo FinanceBlackRock's IBIT Sees $1.3 Billion Dark Pool Sale as Bitcoin ETF Outflows Deepen
On May 27, 2026, a $1.3 billion block of BlackRock's iShares Bitcoin Trust (IBIT) shares was traded in a dark pool, involving nearly 29 million shares. The off-exchange trade occurred at 10:30 a.m. ET, aiming to minimize market impact. Despite the dark pool execution, Bitcoin's price slipped about 1.4%, moving from $78,000 to $77,000 during the sell flow. The trade coincided with $192.4 million in net redemptions for IBIT and $334 million in total net outflows from U.S. spot Bitcoin ETFs for the week, following two consecutive weeks of heavy withdrawals exceeding $1 billion each. Analysts at MEXC Research characterized the block sale as a large portfolio adjustment rather than a disorderly liquidation. The event raises questions about institutional demand for Bitcoin after its spring rally, with IBIT remaining the largest public wrapper for spot Bitcoin exposure.
Yahoo FinanceBlackRock's IBIT Sees $1.3 Billion Dark Pool Sale as ETF Outflows Deepen
On May 27, 2026, a $1.3 billion block of BlackRock's iShares Bitcoin Trust (IBIT) shares was traded in a dark pool, representing nearly 29 million shares. The off-exchange trade occurred at 10:30 a.m. ET, and Bitcoin slipped about 1.4% during the sell flow, moving from $78,000 to $77,000. IBIT also faced $192.4 million in net redemptions on Tuesday, while U.S. spot Bitcoin ETFs posted $334 million in total net outflows for the week. This follows two consecutive weeks of heavy withdrawals totaling over $2 billion. Analysts suggest the block sale may be a large portfolio adjustment rather than a disorderly liquidation, but it highlights ongoing institutional demand concerns after Bitcoin's spring rally. IBIT remains the largest public wrapper for spot Bitcoin exposure, trading at $42.36 per share.
Yahoo Finance$1.3B Worth of BlackRock's IBIT Changes Hands in Dark Pool Sale
A $1.3 billion block of BlackRock's iShares Bitcoin Trust (IBIT) shares was traded in a dark pool on Tuesday morning, one of the largest off-exchange Bitcoin ETF transactions since the products launched 15 months ago. The nearly 29 million shares were executed at 10:30 a.m. ET, as U.S. spot Bitcoin ETFs extended their outflow streak, with IBIT facing $192.4 million in net redemptions that day. Bitcoin held relatively steady around $76,000 after the trade, though it shed nearly 1.4% from $78,000 during the sell flow. Experts noted the dark pool transaction kept the worst selling pressure off public books but reflected a large source of demand leaving the market. Investor sentiment deteriorated, with the Fear and Greed Index falling to 25. Prediction market odds for Bitcoin reaching $84,000 dropped from 79% to 69%.
Yahoo Finance