IonQ (NYSE: IONQ), the quantum-computing company, used its 2026 Investor Day to unveil Superion 256, a sixth-generation quantum computer whose chips are fabricated through its recently acquired chipmaker SkyWater Technology.
IonQ shares closed at $39.52 on 4 September, up 1.28% from the prior close of $39.02, leaving the stock inside a wide 52-week range of $25.89 to $84.64 and a market capitalisation of roughly $16.0bn. Markets have not yet had a full session to react to the Superion 256 announcement.
IonQ closed its roughly $1.8bn acquisition of SkyWater in early August, positioning itself as a vertically integrated “platform and foundry” spanning quantum design and semiconductor manufacturing. The Superion 256 launch is the first tangible product of that deal: chips built at SkyWater’s fabrication plant, with design cycles compressed from nine months to two. Superion 256 is available to order now, with customer deliveries scheduled for 2027, and the first system was pre-sold in the first quarter of this year. “Superion is the result of two strategic acquisitions coming together to deliver this historic milestone,” said Niccolo de Masi, Chairman and CEO of IonQ. “SkyWater unlocked the ability to manufacture at semiconductor costs and scale.”
Management also laid out a roadmap targeting a 10,000-qubit successor system and cost-per-qubit reductions of more than 300 times, framing the chip as proof that quantum hardware can scale the way semiconductors have. SkyWater itself generated $442m in revenue in fiscal 2025, according to Zacks Investment Research. IonQ’s own revenue reached $80.1m in the second quarter, up 287% year-on-year and its fifth consecutive record quarter, prompting the company to raise its full-year guidance to $280m-$290m from $260m-$270m when it reported earnings in August.
Pre-market quotes for quantum peers Rigetti Computing (NASDAQ: RGTI), up around 0.1%, and D-Wave Quantum (NYSE: QBTS), down around 1.4%, showed little comparable movement, suggesting the Superion launch is being treated as an IonQ-specific catalyst rather than a re-rating across the quantum-computing sector.
IonQ remains one of the most richly valued stocks in the quantum-computing sector, a status that keeps it event-driven: even a well-received product launch has so far left shares well within their 52-week range rather than at fresh highs.