BlackRock's iShares Bitcoin Trust (IBIT) recorded net outflows of $527.84 million on Wednesday, marking the second-largest single-day withdrawal since the ETF launched in January 2024. The figure fell just $500,000 short of the record $528.3 million outflow seen on Jan. 30, according to SoSoValue data.
Broader ETF Exodus Pressures Bitcoin
The IBIT outflow was part of a wider sell-off across the U.S. spot Bitcoin ETF complex. All 11 funds combined lost $733.43 million on Wednesday, with Fidelity's FBTC shedding $60.30 million and Grayscale's GBTC losing $104.76 million. Over the past two weeks, cumulative outflows have exceeded $2 billion. The persistent redemptions have reinforced a negative feedback loop with bitcoin's price, which fell below $73,000 during Asian trading on Thursday, reaching $72,978 — down 3.4% in 24 hours.
Dark Pool Block Trade Adds to Pessimism
A day prior, a single institutional investor sold $1.29 billion worth of IBIT shares in a dark-pool block trade. While such privately negotiated transactions do not necessarily equate to net ETF outflows (Tuesday's actual net redemptions totaled $192.44 million), the back-to-back events signal that institutional players are systematically reducing bitcoin exposure as the macro backdrop deteriorates.
Geopolitical Shock and Institutional De-Risking
Wednesday's ETF outflows coincided with U.S. airstrikes on an Iranian military site near the Strait of Hormuz, reigniting conflict fears that markets had begun to price out. Bitcoin has fallen from highs above $82,000 on May 6 to current levels below $73,000. The ETF channel that powered the 2025 rally has flipped into distribution mode, with May marking a shift from steady accumulation in March and April. Year-to-date net inflows have dwindled to just 4,500 BTC.
IBIT has experienced extended outflow streaks before during this cycle, only to see capital return once the macro picture clears. Whether the current redemptions reflect tactical hedging or a deeper institutional retreat will become clearer once the Middle East situation stabilizes. For now, ETF flow data remains a key barometer of institutional sentiment.