Quantinuum seeks up to $12.7 billion valuation in U.S. IPO

Quantinuum is asking public investors to put a $12.7 billion price tag on a business that generated just $30.9 million in revenue last year, a sharp illustration of how far markets are willing to run ahead of current sales in frontier computing. The Honeywell-backed quantum company plans to sell about 21.05 million newly issued shares at $45 to $50 apiece, with the offering expected to raise as much as $1.05 billion. If the deal prices at the top of that range, Quantinuum said it would have 253.9 million shares outstanding after the offering.

The stock would trade on Nasdaq under the ticker QNT, with J.P. Morgan and Morgan Stanley serving as joint lead active book-running managers. Honeywell is expected to remain a dominant shareholder after the listing, with about 49.1% of the combined voting power, and the company said Honeywell will stay on as a customer and partner after the IPO. That makes the offering more than a financing exercise: it is a test of whether public markets see Quantinuum as an emerging platform business or still as a long-dated technology bet wrapped in blue-chip sponsorship.

The financial picture is still early. Quantinuum reported a net loss of $192.6 million in 2025, wider than the $144.1 million loss it posted on $23 million in revenue in 2024. Those numbers help explain the valuation debate now surrounding the IPO. Investors are not buying a mature cash-flow business. They are buying access to a company that is trying to turn quantum computing from a research milestone into a commercial engine, with the market assigning value to intellectual property, technical progress and strategic relationships long before profits arrive.

That expectation has already been moving higher. In September 2025, Quantinuum raised about $600 million at a $10 billion pre-money valuation, with Quanta Computer, NVentures, QED Investors, MESH and Korea Investment Partners joining existing shareholders that include JPMorganChase, Mitsui & Co., Amgen, Cambridge Quantum Holdings, Serendipity Capital and Honeywell. The company was formed in November 2021 through the merger of Honeywell Quantum Solutions and Cambridge Quantum, a combination Honeywell said would help build a business positioned for a projected $1 trillion quantum-computing industry over the next three decades.

Quantinuum has also used technical milestones to support that pitch. It unveiled a 56-qubit trapped-ion quantum computer in June 2024 and launched Helios in November 2025 as a general-purpose commercial quantum computer, with early-access partners including SoftBank Corp. and JPMorgan Chase. The IPO now functions as a referendum on commercialization timing: whether public investors believe quantum computing is becoming a marketable business now, or whether they are paying today for a future that remains years away.