Quantinuum shares open at $68 following quantum computing IPO
The quantum computing firm begins public trading with a $68 opening price, while parent company Honeywell maintains control and continues as a key customer.

Quantinuum shares commenced trading at $68 per share following the company’s initial public offering, marking its entry into the public markets. The opening price establishes the initial valuation for the quantum computing enterprise as it begins its journey as a listed entity.
Honeywell will retain a majority stake in Quantinuum post-listing, ensuring continued strategic oversight of the business. The industrial conglomerate’s retention of control signals its long-term commitment to the quantum computing sector and the specific technological capabilities developed by the subsidiary.
Beyond its equity position, Honeywell will continue to operate as a strategic customer and partner to Quantinuum. This ongoing relationship underscores the practical application of the company’s quantum technology within broader industrial and commercial operations, providing a foundational revenue stream and development partnership.
The listing represents a significant milestone for the quantum computing industry, which has seen increased interest from both institutional investors and technology firms. As a dedicated player in the quantum space, Quantinuum’s public debut provides greater visibility into the commercialisation of quantum technologies.
Market participants will now monitor the stock’s performance following its debut. The initial opening price of $68 sets the baseline for subsequent trading activity, with investors likely to assess the company’s growth prospects against its established partnership with Honeywell.
The event highlights the evolving landscape of capital markets, where specialised technology firms are increasingly seeking public listings to fund expansion and research. Quantinuum’s structure, with Honeywell as the majority owner and strategic partner, offers a distinct model for how deep-tech companies may navigate the transition to public markets.
