Quantum computing stocks rise 6-12% amid broad market rally after U.S.-Iran peace news.

Shares of quantum computing companies Quantum Computing Inc., D-Wave Quantum, Rigetti Computing, and IonQ rose between 6% and 12% in a broad market rally on Monday. The gains were driven by a positive risk-on sentiment following the U.S.-Iran peace agreement announcement, rather than any company-specific news. Quantum stocks, known for high volatility, benefited from a drop in market volatility and a rising S&P 500. Investors should watch if the rally sustains or fades, with the next potential catalyst being the formal U.S.-Iran signing on June 19. These companies remain speculative and trade largely on future expectations rather than current profits.