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Microsoft shares surged more than 15% Thursday, adding roughly $450 billion in market value in a single session -- the largest one-day market-cap gain in stock market history -- after Azure crossed $100 billion in annual revenue and accelerated to 43% growth.
Microsoft shares jumped 16% and added roughly $450 billion in market value on Thursday, the largest single-day gain for any company in market history, after fourth-quarter earnings showed Azure growing 43% year-over-year.
Microsoft closed fiscal 2026 with Azure crossing $100 billion in annual revenue for the first time and beat on every headline number, but it's the FY2027 capex guide of $255-260 billion -- up from $190 billion this year -- that's the number Wall Street will be arguing about tomorrow.
