Key facts
- Quantinuum's stock closed near its IPO price on its Nasdaq debut.
- The company's stock opened 13% above its IPO price.
- Quantinuum achieved a valuation of $17.63 billion.
- Honeywell retains a significant stake and strategic partnership.
- The U.S. government announced a $2 billion initiative including a $100 million investment in Quantinuum.
Quantinuum, a quantum computing venture backed by Honeywell, commenced trading on the Nasdaq stock exchange. Shares opened at $68, above the IPO price of $60, and rose 13.3% on the debut day, reaching a valuation of $17.63 billion. The company, formed in 2021 from Honeywell's and Cambridge Quantum's operations, develops quantum hardware and software systems. Honeywell will retain approximately 48.1% of the voting power. Investor interest in the sector is driven by the long-term potential of quantum machines. The U.S. government's recent $2 billion initiative, including a planned $100 million investment in Quantinuum, has also buoyed sentiment. Peer IonQ has seen its shares surge 52% year-to-date. J.P. Morgan and Morgan Stanley were lead book-running managers for the offering. Quantinuum reported $30.9 million in sales and a net loss of $192.6 million for full-year 2025. Japan's RIKEN research institute accounted for roughly 60% of the company's 2025 revenue. Despite an initial surge, the stock ended the trading day just cents above its IPO price.