What happened: D-Wave Quantum (QBTS) stock surged more than 8% on Monday. What's behind the move: Shares of the quantum computing company rose after the company announced that AT&T (T) will expand the use of D-Wave's technology across its network operations. Quantum peers also jumped, with Rigetti Computing (RGTI) and Infleqtion (INFQ) climbing more than 10% and 8%, respectively. What else you need to know: Shares of D-Wave, Rigetti, and Infleqtion have been volatile this year, with all three down more than 30% year to date. Click here for in-depth analysis of the latest stock market news and events moving stock pricesRead the latest financial and business news from Yahoo Finance