On May 27, 2026, BlackRock’s iShares Bitcoin Trust (IBIT) experienced its second-largest single-day net outflow since its inception, with $527.84 million withdrawn. This figure is just shy of the record set in January 2024, where the fund saw an outflow of $528.3 million.
The significant withdrawal is attributed to a broader trend affecting U.S.-listed spot bitcoin exchange-traded funds (ETFs), which collectively lost $733.43 million on the same day. Among these, Fidelity’s FBTC and Grayscale’s GBTC reported losses of $60.30 million and $104.76 million, respectively. Over the past two weeks, the total outflows from this group have exceeded $2 billion.
The sell-off coincided with a notable decline in bitcoin’s price, which dropped below $73,000 for the first time since early May. As of Thursday morning, the cryptocurrency was trading at $72,978, reflecting a 3.4% decrease over the previous 24 hours. This price movement followed U.S. airstrikes on an Iranian military site, which rekindled concerns about geopolitical tensions in the region.
The outflows from IBIT were compounded by a significant transaction on May 26, when a single investor sold $1.29 billion worth of IBIT shares in a dark-pool trade. While this sale does not directly equate to a net outflow, it indicates a trend of institutional investors reducing their bitcoin exposure amid shifting market conditions.
Data trends suggest that this shift has been developing over several weeks, with ETF accumulation dwindling to around 4,500 BTC in 2026. The month of May has seen a reversal from the steady buying observed in March and April, leading to a net distribution of assets.
Market analysts are watching closely to determine whether these outflows are a temporary reaction to current events or indicative of a more sustained withdrawal by institutional investors. Historical patterns show that IBIT has previously endured extended outflow periods without significant long-term impacts, often rebounding once market conditions stabilize.
Additionally, financial expert Michael Kramer has warned that upcoming U.S. Treasury operations could lead to a liquidity drain of approximately $150 billion, which may further influence bitcoin’s price trajectory. He notes that bitcoin often serves as a leading indicator for liquidity and has already breached critical support levels.
BlackRock's iShares Bitcoin Trust recorded a significant outflow of $527.84 million on May 27, 2026, amid broader market instability and geopolitical tensions. This trend reflects a growing concern among institutional investors, with total outflows from U.S.-listed bitcoin ETFs surpassing $2 billion in recent weeks.
Source: CoinDesk