Analysts Turn Bullish on Quantinuum After Quiet Period

Quantinuum shares dropped about 2.69% to $73.54 on Monday after the company’s IPO quiet period expired and multiple brokerages released their first formal research on the stock.

Cantor Fitzgerald, Rosenblatt, JP Morgan, Morgan Stanley and Mizuho all initiated coverage. Cantor Fitzgerald began with an Overweight rating. Rosenblatt opened with a Buy and a $155 price target. JP Morgan issued a positive initiation. Morgan Stanley set an Equal Weight rating and a $78 target. Mizuho initiated with an Outperform and a $90 target. Analysts varied in their assumptions about near‑term valuation and the pace of commercialization.

Analysts highlighted Quantinuum’s Helios quantum computer and its trapped‑ion design. The Helios system uses Barium‑137 ions instead of the more common ytterbium, allowing qubit control with visible and infrared lasers rather than ultraviolet light. Analysts cited the company report of 99.92% two‑qubit gate fidelity on Helios as a technical benchmark.

Troy Jensen of Cantor Fitzgerald wrote that Quantinuum “envisions a hybrid compute world” made up of CPUs, GPUs and quantum processors, and described the company’s work on hardware, software and applications. John McPeake of Rosenblatt wrote that Quantinuum “has set the industry benchmarks in quantum compute,” citing the Helios fidelity figure in support of his $155 price target.

JP Morgan noted that Quantinuum formed in 2021 through the merger of Honeywell’s quantum division and Cambridge Quantum, a UK spin‑out. Harlan Sur highlighted more than a decade of trapped‑ion experience, three generations of machines in six years and plans to scale to larger systems by the end of the decade. JP Morgan also listed a growing commercial pipeline that includes financial services, telecommunications and automotive customers.

Morgan Stanley called the company’s technical progress notable but assigned a neutral rating to reflect commercialization risk, writing that the trapped‑ion architecture provides a “credible path to fault tolerance.” Mizuho projected industry revenue growth from about $1.1 billion in annual run rate in 2025 to roughly $15 billion by 2030 and $205 billion by 2035.

Additional reporting noted a tentative agreement with the Commerce Department last month in which Quantinuum exchanged a minority equity stake for federal funding. Analysts described the arrangement as strengthening the company’s financial position.

Market reaction left the stock lower on the day the quiet period ended, even as analysts published technical metrics and divergent views on timing for broader commercial deployment.