A gold superconducting quantum computer hangs against a black background. Quantum computers, like the one shown here, could someday allow chemists to solve problems that classical computers can’t.

Santa keeps delivering for quantum computing investors this year. On Monday, shares of well-known quantum computing firms shot up by double digits, with D-Wave Quantum stock up almost 15% and Quantum ...

Researchers say they have created the world's first scalable atomic quantum processor that achieves record-breaking 99.99% fidelity. When you purchase through links on our site, we may earn an ...

Kara Greenberg is a senior news editor for Investopedia, where she does work writing, editing, and assigning daily markets and investing news. Prior to joining Investopedia, Kara was a researcher and ...

Though they’ve recently had a bumpy ride, quantum computing stocks stacked cash overall in 2025, with industry exchange-traded fund Defiance Quantum ETF (ticker: QTUM) up 42% year to date as of Dec. 9 ...

High-flying, unprofitable pure-play quantum computing stocks will likely plunge if the bubble bursts. Tech giants that are investing in quantum computing but generate revenue from other businesses ...

Quantum Computing Inc. remains a highly speculative, pure-play quantum stock with minimal revenue and an excessive valuation. QUBT's photonic-based, room-temperature quantum approach is differentiated ...

Microsoft could have a game-changing quantum computing technology with its topological superconductors. Wall Street is especially bullish about the tech stock. The best reason to buy Microsoft, though ...

Forbes contributors publish independent expert analyses and insights. Tim Bajarin covers the tech industry’s impact on PC and CE markets. Two years ago, I spent about six months in deep discussions ...

Buterin warns that quantum computers could threaten Ethereum’s cryptography sooner than expected and outlines how the network can prepare safely. Buterin sees a nontrivial 20% chance that quantum ...

In a proposal that reads more like the script to a new sci-fi movie, researchers are suggesting a unique way to tackle one of the core problems of quantum computing. If deployed, it would redefine how ...