Stock Market Today, July 27: D-Wave Surges on Nasdaq Debut and Expanded AT&T Deal

ExpandNASDAQ: QBTSD-Wave QuantumToday's Change(20.36%) $3.30Current Price$19.51Key Data PointsMarket Cap$6.0BMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.Day's Range$17.75 - $19.5452wk Range$12.75 - $46.75Volume48.5MAvg Vol30.4MGross Margin32.92%D-Wave Quantum (QBTS +20.36%), a quantum computing systems and services provider, closed at $19.51, up 20.36%. An expanded agreement with AT&T (T +1.20%) and the stock’s Nasdaq listing debut drove the move. Investors will now be watching the next earnings report.Trading volume reached 47.2 million shares, coming in about 54% above its three-month average of 30.6 million shares. D-Wave Quantum IPO'd in 2020 and has grown 92% since going public.How the markets moved todayS&P 500 (^GSPC +0.02%) rose 0.02% to 7,413, while the Nasdaq Composite (^IXIC -0.18%) fell 0.18% to 24,932. In quantum computing systems, software, and services, IonQ (IONQ +9.38%) closed at $35.91, up 9.35%, and Rigetti Computing (RGTI +10.53%) closed at $15.64, up 10.53%, as investors reacted to D-Wave's expanded AT&T deal and Nasdaq listing.What this means for investorsD-Wave transferred its listing from the New York Stock Exchange to Nasdaq, with trading beginning today. While that could add a market-related tailwind from publicity and potentially improved liquidity, it isn’t the main reason for the stock’s 20% move.The stock jumped after it announced that AT&T has agreed to expand its use of D-Wave's quantum computing technology, with the intention of employing it to tackle complex optimization problems in its network operations.The news reinforced that there is demand for commercial applications of its quantum technology, helping investors gain confidence that D-Wave and its quantum computing peers will have paths to successfully monetize it.Read NextJul 22, 2026 •By Anders BylundWhich Quantum Computing Stocks Get the Most Government Funding – and Does it Matter?Jul 21, 2026 •By Justin PopeIs D-Wave Quantum a Millionaire-Maker Stock?Jul 19, 2026 •By Scott Levine3 Best Tech Stocks to Buy in 2026 and How to InvestJul 19, 2026 •By Robert IzquierdoD-Wave Quantum's CEO Sold Over 50,000 Company Shares. Here's What That Means for Investors.Jul 9, 2026 •By Robert IzquierdoD-Wave Quantum vs. Rigetti Computing: Which Quantum Computing Stock Is a Better Buy in 2026?Jul 8, 2026 •By Anders Bylund9 Best Quantum Computing Stocks for 2026 and How to InvestAbout the AuthorHoward Smith is a contributing Motley Fool stock market analyst covering technology and industrial stocks. Prior to The Motley Fool, Howard spent nearly 30 years supervising quality and operations in the steel industry, mostly with leading steel company Nucor. He holds a bachelor’s degree in metallurgical engineering from Lafayette College and a master’s degree in environmental engineering from Johns Hopkins University.TMFBuilt2LastStocks MentionedD-Wave QuantumNASDAQ: QBTS$19.51(+20.36%)+$3.30Motley Fool Stock Advisor’s Latest PickGet Access---% Avg Return*Average returns of all recommendations since inception. Cost basis and return based on previous market day close.