BlackRock IBIT absorbs $1.26B block trade; ETF, Bitcoin steady

At 10:30:34 a.m. ET a single IBIT print of 29,212,864 shares crossed at $43.16, a notional of about $1.26 billion, executed in a dark pool. IBIT finished the session near $42.99, up roughly 0.09%. Spot Bitcoin registered a momentary roughly 1% dip and was trading around $75,911 at the close, down about 1.7% from earlier levels.

The block accounted for about 34.8% of IBIT’s reported intraday volume of 83.86 million shares. The next-largest visible trade that day was about 1.3 million shares. Market data showed the print routed through block desks, market makers and other institutional liquidity providers.

IBIT shares trade continuously on the secondary market. BlackRock’s fund documents state that individual shares are not redeemable from the trust; only authorized participants can create or redeem large baskets of shares directly with the fund.

Whether the block trade translated into actual sales of Bitcoin depends on the fund’s next official flow report. If the flow print shows little or no outflow, the transaction would reflect a transfer of existing ETF shares between institutions. If the flow print reports a sizable redemption, particularly one near or above IBIT’s prior single‑day withdrawal record of about $523 million set in November 2025, the transaction would represent primary‑market redemptions that require the trust to sell Bitcoin to meet those redemptions.

Until the fund’s flow data is published, trading records show the large print did not cause a sustained repricing of the ETF and the spot market dip was brief.