Quantinuum Raises $1.68 Billion in Nasdaq IPO at $15.7 Billion Valuation
Quantinuum, the quantum computing company formed from Honeywell's quantum division and Cambridge Quantum, raised $1.68 billion in its Nasdaq IPO on June 4, 2026, pricing shares at $60 each above its initial range. The company debuted at a $15.7 billion valuation, backed by Nvidia, JPMorgan Chase, and the U.S. government.
Quantinuum raised $1.68 billion in its Nasdaq IPO on June 4, 2026, pricing 28 million shares at $60 each, above its initial marketing range of $53 to $55. The company debuted under the ticker symbol QNT with a market valuation of approximately $15.7 billion.
The offering was led by J.P. Morgan and Morgan Stanley. Strong investor demand prompted the company to upsize the offering and price above the initial range. The stock closed relatively flat on its first day of trading.
Quantinuum operates as a full-stack quantum computing business, integrating trapped-ion quantum hardware with a proprietary software stack. The company was formed in 2021 through the merger of Honeywell's quantum computing division and Cambridge Quantum, a U.K.-based software developer.
Honeywell remains a significant stakeholder, retaining approximately 48.1 percent of the company's combined voting power following the IPO. The company is also backed by Nvidia, JPMorgan Chase, Amgen, and Fidelity.
The U.S. government has announced plans to provide $100 million in funding to Quantinuum as part of a broader $2 billion initiative to support the quantum computing ecosystem.
Quantinuum's financial disclosures highlight the challenges of the nascent quantum sector. In the first quarter of 2026, the company reported $5.24 million in revenue, a 73 percent decrease from $19.1 million in the same period the previous year. Net losses for the quarter reached $136.5 million.
Analysts view the IPO as a significant moment for the quantum computing industry, noting that Quantinuum's presence in public markets could improve price discovery and attract greater institutional coverage to a sector that has historically been thinly followed. The company's debut follows the earlier IPO filing by D-Wave, another quantum computing firm, reflecting growing investor interest in the space.
