D-Wave Quantum (QBTS) Stock After-Hours: Why Shares Jumped on Dec. 22, 2025—and What to Watch Before Tuesday’s Open
D-Wave Quantum Inc. (NYSE: QBTS) is ending Monday, December 22, 2025, with investors still digesting a sharp, news-driven rally that put the quantum-computing pure play back in the spotlight heading into the final full trading week before year-end. After the closing bell, QBTS was little changed in after-hours trading, suggesting the market largely priced in the day’s catalyst during regular…