Quantum Computing Stocks: IonQ, Rigetti, D-Wave and QUBT Slide Into Year-End—What to Watch Before Monday’s Open
NEW YORK, Dec. 28, 2025, 12:45 p.m. ET — Market closed (Weekend). Quantum computing stocks are heading into the final trading week of the year with a familiar mix of promise and turbulence—exactly the kind of setup that can amplify both opportunity and risk when liquidity is thin. In the most recent regular session (Friday), several of the best-known “pure-play” quantum names posted sharp declines even as the broader U.S. market largely drifted in quiet, post-holiday trade. IonQ (IONQ) finished at $46.00, down about 7.6%. Rigetti Computing (RGTI) closed at $22.38, down roughly 8.6%. D-Wave Quantum (QBTS) ended at $25.29,