Quantinuum Stock News

As Wall Street and Washington pour billions into quantum tech, industry leaders warn that real-world utility—and profits—may still be years away.

Quantinuum's Helios computer achieves a world-record 99.9995% logical fidelity—just five errors in a million operations—using the company's error-correction architecture. Error rate is 10x lower than Quantinuum's own September 2026 record and 100x lower than the best published result across all other hardware modalities, which was reported by Google Quantum AI using a superconducting system.

EXCLUSIVE: Quantinuum says it hit a technical milestone that puts it on a path to achieve fully accurate and reliable quantum computers by 2029.

Morgan Stanley upgraded  Quantinuum to buy on valuation versus other quantum computing stocks as well as its technology roadmap.

Quantinuum and The University of Western Australia (UWA) sign MOU to help prepare Australia's workforce and innovation ecosystem for the hybrid quantum-AI-HPC computing era Quantinuum will provide UWA-affiliated researchers, students and entrepreneurs with access to its full-stack quantum computing ecosystem, including Helios, the world's most accurate commercial quantum computer1 Collaboration...

This week's Quantum World Congress could trigger a ‘sentiment reversal' for quantum stocks after a rough summer, an analyst said.

The U.S. Energy Department launches Quantum Genesis Q, a competition to build an error-corrected, ‘scientifically relevant' quantum computer.