IONQ ▲ +6.6% - IonQ, Inc. $IONQ - IonQ Demonstrates Industry’s First End-to-End Real-Time Quantum Error Decoder IonQ stock rose 6.6% after the company announced it demonstrated the industry's first end-to-end real-time quantum error decoder, a technical breakthrough that addresses a critical challenge in making quantum computers practical and scalable. The achievement suggests IonQ is advancing its competitive position in quantum computing hardware and error correction capabilities. 22-SEP-2026 04:01 PM ET