Quantum Computing 29 December 2025 - 31 December 2025

IonQ, Inc. shares were up 1.3% at $45.83 in regular trading on Tuesday after the company said it finalized an agreement to deliver a 100-qubit Tempo quantum system to South Korea’s Korea Institute of Science and Technology Information. The stock has traded between $45.48 and $47.40, with volume around 9.3 million shares. IonQ said the system will be integrated into KISTI-6 “HANGANG,” a high-performance computing cluster, in what it described as the country’s first on-site hybrid quantum-classical setup; CEO Niccolo de Masi called the deal “a defining moment for both IonQ and South Korea.” IonQ Investors

IonQ, Inc. shares fell 1.6% to $45.25 in after-hours trading on Monday after the quantum computing company said it had finalized an agreement to deliver a 100‑qubit system to South Korea’s Korea Institute of Science and Technology Information. IonQ Investors

IonQ shares fell 2.5% to $44.85 in afternoon trading on Monday after the quantum-computing company said it had finalized an agreement to deliver a 100-qubit system to South Korea’s Korea Institute of Science and Technology Information. IonQ Investors

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 to deliver a 100-qubit system. IonQ Investors

D-Wave Quantum Inc shares were last down 8.1% at $25.29, extending a late-week pullback in U.S.-listed quantum-computing names.