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BlackRock’s IBIT Records Massive $1.29B Dark Pool Bitcoin ETF Trade

Reported by Coinpedia
May 27, 2026· 2 min read
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Key Takeaways
  • • BlackRock's iShares Bitcoin Trust (IBIT) executed a $1.29 billion dark pool block trade on Tuesday, involving approximately 29.2 million shares at $43.16 per share—one of the largest institutional Bitcoin ETF transactions on record.
  • • Bloomberg ETF analysts James Seyffart and Eric Balchunas confirmed the trade's execution around 10:30 am, with Balchunas noting the market "absorbed it well" despite the substantial order size.
  • • Galaxy Digital's Head of Research Alex Thorn characterized the transaction as the "biggest such trade" he had observed, while crypto analyst Axel Adler Jr. interpreted it as a "large-scale institutional de-risking" event through BlackRock's spot Bitcoin ETF.
  • • The dark pool transaction reignited debate regarding Wall Street's expanding influence over Bitcoin markets, with critics arguing that Bitcoin ETFs do not enhance the cryptocurrency's real-world utility or adoption.
  • • Following the IBIT sale, Bitcoin's price declined from approximately $78,000 to $76,500, coinciding with reported significant outflows from Bitcoin ETFs.
Summary
A $1.29 billion block trade in BlackRock's iShares Bitcoin Trust (IBIT) executed through a dark pool on Tuesday represents one of the largest institutional Bitcoin ETF transactions documented to date. The trade involved approximately 29.2 million IBIT shares transacted around 10:30 am at nearly $43.16 per share, with execution occurring on Nasdaq through a privately negotiated dark pool mechanism that allows institutional investors to move large share blocks without immediately exposing their positions to public markets or creating visible price pressure.

Bloomberg ETF analyst Eric Balchunas, along with colleague James Seyffart, verified the trade's details and confirmed that despite the transaction's substantial size, the market absorbed it without significant disruption. Balchunas's assessment that the market handled the order "well" underscores the institutional capacity that has developed around spot Bitcoin ETF trading since regulatory approval. Galaxy Digital's Head of Research Alex Thorn described the transaction as the "biggest such trade" he had encountered, while crypto analyst Axel Adler Jr. characterized the sale as evidence of "large-scale institutional de-risking" activity within the Bitcoin ETF ecosystem.

The transaction coincided with measurable market movement, as Bitcoin's price fell from approximately $78,000 to $76,500 following the IBIT sale, with reports indicating broader Bitcoin ETF outflows during the same period. The large-scale institutional exit renewed debate over Wall Street's growing role in Bitcoin markets, with critics—including Crucible Capital's founder—arguing that the proliferation of Bitcoin ETFs has not materially improved cryptocurrency's real-world utility or actual adoption, instead serving primarily as a financial instrument for institutional portfolio allocation and de-risking.

Dark pool trades represent a critical mechanism for institutional market participation, enabling large asset transfers without the price discovery that would typically occur on public exchanges. The IBIT transaction's size and successful execution reflect both the institutional infrastructure that has matured around spot Bitcoin ETF products since their 2024 approval and the sophisticated capital flows occurring within regulated cryptocurrency investment vehicles.

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Coinpedia BlackRock’s IBIT Records Massive $1.29B Dark Pool Bitcoin ETF Trade