Rigetti Computing has become one of quantum computing's biggest market darlings, but its lofty valuation, shrinking revenue, ...

Quantum computing stocks dropped 35% from their post-signing peak after Trump signed two June 22 executive orders — the same ...

Andrew Kessel was a breaking news writer for Investopedia until October 2025. He previously covered markets for Proactive Investors, with a focus on small-cap stocks in fintech, healthcare, mining, ...

Microsoft’s controversial claim that its Majorana chip program will make possible a scalable quantum computer by 2029 has been thrown into new doubt by a scientific paper that questions whether the ...

Xanadu shares rose Tuesday after the company said it is expanding its partnership with Lockheed Martin to help train engineers in quantum computing. Shares of the photonic quantum computing company ...

The Majorana 2 quantum chip embodies Microsoft's efforts to use a topological architecture to pursue fault-tolerant quantum ...

Connecticut invested an additional $60 million in its statewide quantum computing program after receiving a $15 million, ...

The Defense Advanced Research Projects Agency (DARPA) has partnered with three companies for a new quantum computing program aimed at developing utility-scale systems. The US R&D agency also selected ...

CHICAGO--(BUSINESS WIRE)--Infleqtion, a global leader in quantum computing and quantum sensing, today announced it has executed its contract with the U.S. Department of Energy’s Advanced Research ...

Although the company’s name was not disclosed, the limited information provided — including the executive who spoke on behalf ...

D-Wave Quantum Inc. has unveiled the Leap Quantum LaunchPad program, designed to support organizations in deploying quantum computing solutions and optimizing business processes. The initiative ...

The company has drawn governments, a major chipmaker, and the Pentagon into an effort to control fragile photons and build a ...