NEW YORK, December 29, 2025, 11:38 ET — Regular session
- IonQ shares fell 1.7% in late-morning trading after the company announced a South Korea system deal.
- IonQ said it will deliver a 100-qubit “Tempo 100” quantum system to national research institute KISTI. IonQ Investors
- Investors are watching for contract value and delivery timing; the company did not disclose financial terms.
Shares of IonQ Inc fell 1.7% to $45.22 in late-morning trading on Monday after the quantum computing company said it finalized an agreement with South Korea’s Korea Institute of Science and Technology Information (KISTI) to deliver a 100-qubit system.
The announcement matters because hardware deliveries are a visible test of whether quantum-computing developers can turn research partnerships into paid deployments of machines that cost far more than typical cloud subscriptions. IonQ is one of a small set of U.S.-listed pure plays that can swing sharply on contract headlines.
Investors had little to go on beyond the headline: IonQ did not disclose the financial terms or a delivery timeline, leaving traders to wait for evidence of when the contract could translate into revenue.
IonQ said the agreement covers a “Tempo 100” quantum system that will be integrated into KISTI-6, a high-performance computing (HPC) cluster dubbed “HANGANG.” The company said the setup would be the country’s first onsite hybrid quantum-classical integration. IonQ Investors
A qubit — short for quantum bit — is the basic unit of information in a quantum computer, while “HPC” refers to supercomputer-style clusters used for heavy scientific workloads. A hybrid system links a quantum processor with conventional computers so users can route parts of a job to each where it fits best. IonQ Investors
“This is a defining moment for both IonQ and South Korea,” Niccolo de Masi, IonQ’s chairman and chief executive, said in the statement. IonQ Investors
IonQ said the system will be accessible through a secure private cloud environment, allowing remote access for researchers, universities and enterprise users in South Korea. KISTI will lead development and operation of a quantum computing service and research platform, with Megazone Cloud named as a partner on the project.
The stock traded between $44.72 and $46.74 on Monday and had seen about 8.6 million shares change hands by late morning.
Broader markets were weaker, with the S&P 500 ETF SPY down about 0.5% and the Nasdaq 100 tracker QQQ down about 0.7% in the same window.
Other quantum-computing names were mixed: Rigetti Computing fell about 3.1%, D-Wave Quantum rose about 0.9%, and Quantum Computing Inc slipped about 2.4%.
IonQ pointed to other Asia-Pacific ties in its announcement, including collaborations in Japan and partnerships in South Korea with SK Telecom and Hyundai Motor, among others.
With contract value and timing undisclosed, traders are likely to focus next on whether the KISTI deal shows up in booked revenue in upcoming quarterly results, and whether IonQ can add similar system deliveries as 2026 begins.
