IonQ shares surge 7.15% after-hours after expanding QuantumBasel partnership and securing $5M Maryland grant for new headquarters.

IonQ surged 7.15% in after-hours trading following two key developments: (1) the expansion of its QuantumBasel partnership, granting ownership of a next-generation Tempo quantum system and extending the collaboration through 2029, and (2) a $5 million Maryland grant to establish a new headquarters in College Park. These moves reinforce IonQ’s strategic focus on European innovation ecosystems and infrastructure expansion, aligning with its broader goal to accelerate quantum adoption. Additionally, the company’s Q3 2025 revenue growth of 222% to $39.9 million and raised full-year guidance signaled strong commercial traction, further bolstering investor confidence. The combined impact of strategic partnerships, infrastructure funding, and robust financial performance drove the significant after-hours price increase.