WASHINGTON, May 27, 2026 — Investors looking for a direct way to bet on quantum computing are getting their biggest opportunity yet. Quantinuum, the quantum company backed by industrial giant Honeywell, set the terms for its initial public offering earlier this week.
The company plans to sell about 21.1 million shares at a price range of $45 to $50 each, according to its regulatory filing. If everything goes as planned, Quantinuum could be valued at as much as $12.7 billion after the offering — making it the largest pure-play quantum company to go public through a traditional IPO so far this year.
What is quantum computing?
Regular computers use bits that are either a 0 or a 1. Quantum computers use qubits that can act like both 0 and 1 at the same time, thanks to the rules of quantum physics. This lets them test huge numbers of possibilities all at once.
The result is that quantum machines could one day solve certain problems much faster than even the most powerful supercomputers today — things like designing new medicines, creating better materials, optimizing complex supply chains, or breaking current encryption methods. It’s still early, but the technology is moving from theory toward real-world testing.
Quantinuum Sets Terms for Its IPO
Quantinuum was created in 2021 when Honeywell combined its quantum division with the U.K. startup Cambridge Quantum. The company has moved quickly. Last November it launched a new system called Helios, which it called the most accurate quantum computer in the world at the time. It plans to deliver an even more advanced machine, called Apollo, by the end of the decade.
Chief Executive Rajeeb Hazra said in a letter to future investors that this is “a defining period, not just for Quantinuum, but for the future of computing.” The company has grown from a few hundred employees to a global operation with locations in the United States, Singapore, and Japan.
Quantinuum is also benefiting from fresh government support. Last week it was named as one of the companies set to receive part of a $100 million federal push to strengthen the U.S. quantum supply chain.
Other Major U.S. Quantum Companies
Quantinuum is the latest in a wave of quantum firms heading to public markets. Earlier this year, Infleqtion, Xanadu Quantum Technologies, and Horizon Quantum went public through SPAC mergers. On Tuesday, Infleqtion had a market value around $3.5 billion and Xanadu around $4.5 billion.
Among established U.S. quantum companies, some of the best-known names include:
- IonQ — A public company that uses trapped-ion technology and makes its systems available through major cloud platforms.
- Rigetti Computing — Another public company focused on superconducting quantum processors and cloud access.
- D-Wave Quantum — Publicly traded and known for its quantum annealing systems.
Big technology companies are also deeply involved. IBM, Google, and Microsoft all run major quantum research programs and offer cloud-based quantum tools. These efforts give them significant influence even though they are not pure-play quantum stocks like IonQ or Rigetti.
U.S. and China Step Up Quantum Competition
The push to commercialize quantum computing is happening alongside growing strategic competition between the United States and China. Both countries see the technology as critical for future economic and national security advantages.
Last week the U.S. Department of Commerce announced plans to direct roughly $2 billion to nine American quantum companies under the CHIPS and Science Act. Recipients include IBM, GlobalFoundries, Rigetti, D-Wave, Infleqtion, and PsiQuantum. The funding is meant to strengthen domestic capabilities.
According to reporting from Asia Times, shares of major Chinese quantum companies jumped about 20% in the following days as investors expected Beijing to respond with its own increased support. China has already placed quantum technologies high on its list of priority industries for the coming years.
The competition spans hardware, software, and talent. As Leslie Beavers, former Acting Department of Defense Chief Information Officer, discussed on the HELLO FUTURE podcast (the iHeart Media show covered by mtf.tv), nation-state adversaries are already conducting a persistent, large-scale cyber invasion of U.S. networks. She highlighted how emerging technologies like quantum computing could significantly amplify these threats by eventually undermining current encryption standards and creating new vulnerabilities in critical infrastructure.
Federal Support Adds Momentum
The combination of private capital through IPOs and direct government funding is giving the U.S. quantum sector fresh energy. Quantinuum’s traditional IPO route stands out because many smaller quantum startups have used faster SPAC mergers to reach public markets.
While fully useful, large-scale quantum computers are still years away, the flow of money and attention shows the technology is moving from research labs toward early commercial applications. Quantinuum’s listing will be one of the clearest tests yet of how investors value that progress.
For more on quantum developments and related technology, visit mtf.tv.
