Skip to navigationSkip to main contentSkip to right columnADVERTISEMENTPrakhar Srivastava and Pritam BiswasThu, June 4, 2026 at 12:48 PM GMT+2 3 min readBy Prakhar Srivastava and Pritam BiswasJune 4 (Reuters) - Shares of Quantinuum rose 13.3% in their Nasdaq debut, fetching a valuation of $17.63 billion as Honeywell's quantum computing company became the latest to benefit from robust investor demand.The stock opened at $68, compared with its IPO price of $60.Breakthroughs in the fast-growing technology have spurred bets that quantum machines could eventually outperform conventional computers on certain complex tasks. Quantinuum, like its rival IonQ, makes machines that hit trapped ions with lasers to perform quantum computations, where data can be either 1 or a 0, as with conventional computers, or both a 1 and a 0 at once."We, in working with our customers, now have a very clear view that quantum is not still years away. The commercialization has started - started small, but exhilarating," Quantinuum CEO Raj Hazra told Reuters in an interview. "We believe we are ready for public markets."However, investors remain cautious about the industry's ability to generate sustainable commercial revenue in the near term.Sentiment in the sector has also been buoyed after the U.S. government last month announced a $2 billion initiative to take equity stakes in nine quantum computing companies, including a planned $100 million investment in Quantinuum."The investment case is centered on the long-term potential of quantum computing and its potential role in future computing infrastructure," IPOX Schuster analyst Kat Liu said. "The support is meaningful because quantum computing is increasingly viewed as a strategic technology with implications for national security, AI, communications and advanced computing."The sector has also drawn investor interest as increasingly sophisticated and resource-intensive AI systems fuel expectations that demand for quantum computers could eventually gain traction.As of Wednesday's close, shares of peer IonQ have surged about 52% this year, giving the company a market value of about $25.47 billion, according to LSEG data.The Broomfield, Colorado-based company raised $1.68 billion in an upsized IPO by selling 28 million shares at $60 each, above its marketed range of $53 to $55 per share. The company earlier this week raised the number of shares on sale to 26.5 million.The debut comes as the U.S. new listings market regains impetus, although investor appetite remains concentrated in technology and other high-growth sectors.ADOPTION STILL FACES CHALLENGESFounded in 2021 through the merger of quantum computing operations of Honeywell and software specialist Cambridge Quantum, Quantinuum develops quantum hardware and software systems designed to solve complex computational problems.Terms and Privacy PolicyPrivacy & Cookie SettingsMore Info