Quantinuum raised $1.68 billion in its upsized initial public offering late Wednesday, setting the stage for one of the most anticipated tech listings of the year.
The quantum computing company priced its upsized IPO of 28 million shares at $60 apiece. Underwriters have been granted a 30-day option to sell an additional 4.2 million shares if demand is higher than expected, Quantinuum said.
From SpaceX to Anthropic, the pipeline of blockbuster IPOs is moving fast. But for quantum enthusiasts, Quantinuum's forthcoming trading debut is a chance to back a rising market leader.
The Honeywell-backed upstart is slated to go public Thursday. Shares will be listed on the Nasdaq Global Market under the ticker symbol "QNT."
Interest in quantum computing has exploded over the past year. Moving far beyond theoretical technology, it represents an entirely different way of processing information. These systems harness quantum mechanics to solve problems far outside the reach of traditional hardware, promising exponential speedups on tasks that would take classical supercomputers millennia to complete.
Quantinuum itself aims to capitalize on this wave of interest. Just on Monday, the company upsized its IPO to 26.5 million shares for $53 to $55 each. At the top end of the range, Quantinuum would have had a market value of $14.3 billion, making it the second-largest publicly traded quantum company behind IonQ.
The IPO caps months of uncertainty for investors looking to Quantinuum as the next big force in quantum computing. Formed in 2021 through a merger between Honeywell Quantum Solutions and a U.K.-based start-up, Quantinuum has built a roster of collaborators across the energy, aerospace, and finance sectors.
It also has secured the backing of the U.S. government. As part of a $2 billion funding package, Quantinuum will receive up to $100 million from the Commerce Department to scale its trapped-ion quantum computers. In turn, the department will receive a minority equity stake in the company.
Last year, Barron's was the first to report that Honeywell was aiming to take the company public sometime between the end of 2026 and 2027, market conditions permitting. The IPO appears to have come to fruition earlier than the company had anticipated in its most conservative timeline.
Quantinuum has had ample time to refine its flagship trapped-ion technology, supported by a parent with deep pockets. The company's Helios system has achieved a two-qubit gate fidelity of 99.921% alongside single-qubit fidelity of 99.9975%.
Fidelity is a measure of quality that gauges how closely an actual quantum state or operation matches a target. The system boasts a physical-to-logical qubit ratio of 2:1, signaling a highly efficient error-correction code that bodes well for scaling to larger systems.
Of course, an investment in quantum comes with the usual disclaimers. Ahead of broader commercialization, pure-play quantum companies rely on a concentrated base of early adopters. None of the companies are profitable and all will continue to post losses for the foreseeable future.
By the same token, the IPO presents an attractive entry point for quantum enthusiasts. Investors have a chance to buy into a technical leader that consistently hits or accelerates its deployment targets. Better yet, Quantinuum has the backing of big names like Nvidia and Amgen.
It's just as consequential for Honeywell. The carve-out is part of a broader effort to dismantle its sprawling conglomerate structure and strip away operational distractions. Honeywell is expected to retain a majority stake in Quantinuum as well as voting rights after the IPO.