Quantum Computing Stocks Today: IonQ (IONQ), Rigetti (RGTI), D-Wave (QBTS) and Quantum Computing Inc. (QUBT) Rebound at Midday on New Deals and Wall Street Calls (Dec. 18, 2025)
IonQ shares rose 3% to $47.23 by midday Thursday after expanding its QuantumBasel partnership to over $60 million through 2029. Rigetti, D-Wave, and Quantum Computing Inc. also traded higher. The gains followed recent losses tied to renewed AI bubble concerns and were fueled by fresh analyst coverage and M&A headlines. Trading volumes spiked across the group.