Honeywell's quantum computing spinout Quantinuum has filed for a U.S. IPO, setting a target valuation of approximately $12.7–$13 billion. The company plans to offer around 21 million shares priced between $45 and $50 each, aiming to raise up to $1.05 billion in gross proceeds. The listing would mark one of the most significant pure-play quantum computing debuts in public market history.
This IPO gives retail investors their first real shot at direct exposure to a scaled quantum computing company — a space previously locked behind private funding rounds and conglomerate balance sheets. Honeywell, which retains a majority stake, stands to see its own valuation recalibrated as the market prices Quantinuum independently. Broader quantum and deep-tech ETFs may also see inflows as the listing draws attention to the sector.
IPO pricing date: expected imminently given terms are already set. Post-listing lock-up expiry: typically 180 days after IPO date, when insiders can first sell shares. Watch for Honeywell's next earnings call for commentary on retained stake and any valuation impact.
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