Quantinuum raises $1.68B in IPO, putting quantum computing’s commercial future to the test

The Honeywell-backed quantum computing firm priced 28 million shares at $60 each, marking one of the first traditional public listings for a major player in the sector.

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Add us on Google by Editorial Team Jun. 4, 2026

Quantinuum, the trapped-ion quantum computing company backed by Honeywell, priced its IPO at $60 per share on June 3, 2026, raising $1.68 billion. Shares are set to begin trading on Nasdaq under the ticker QNT on June 4.

This is one of the first traditional public listings for a major quantum computing firm. The offering was upsized from an initial target of roughly $1.05 billion.

The numbers behind the quantum hype

Quantinuum sold 28 million shares of Class A common stock, with underwriters holding a 30-day option to purchase an additional 4.2 million shares. At the prior price range, the company carried a valuation of $14.3 billion.

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The company reported 2025 revenue of approximately $30.9 million. Its bookings hit $79.3 million. The net loss widened to $192.6 million for the same period.

A $14.3 billion valuation on $31 million in revenue works out to roughly a 460x revenue multiple.

From private rounds to public markets

Quantinuum raised $300 million in January 2024 at a pre-money valuation of $5 billion. By September 2025, it pulled in $600 million at a $10 billion pre-money valuation.

Nvidia’s venture arm is among the institutional investors that have backed the company. The US Commerce Department has also contributed a total of $100 million in funding.

Quantinuum specializes in trapped-ion quantum systems, a technical approach that competes with the superconducting qubit architectures favored by companies like IBM and Google.

What this means for investors

The $79.3 million in bookings versus $30.9 million in recognized revenue suggests that customer contracts are growing faster than the company can deliver on them. Previous quantum-adjacent public companies have mostly reached the market through SPACs. A traditional IPO with this level of institutional demand represents a different path to market.

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