Quantum Computing 29 December 2025 - 31 December 2025

NEW YORK, December 31, 2025, 2:57 PM ET — Regular session IonQ, Inc. shares dipped in afternoon trading on Wednesday as investors navigated the final session of the year with light volumes and a cautious tone. The stock was down 0.1% at $45.26.

NEW YORK, December 30, 2025, 20:25 ET — Market closed. IonQ Inc shares were last up about 0.2% at $45.31 after U.S. markets closed on Tuesday, as investors weighed a newly detailed system delivery agreement in South Korea. More than 13.5 million shares changed hands and the stock traded between $45.10 and $47.40.

NEW YORK, December 30, 2025, 14:31 ET — Regular session 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

NEW YORK, December 29, 2025, 19:03 ET — After-hours 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

NEW YORK, December 29, 2025, 14:02 ET — Regular session 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