Microsoft shares surged nearly 22% this past week after reporting that revenue jumped 18% year-over-year to $90 billion in its fiscal 2026 fourth quarter, driven by Azure cloud sales that soared 43% and Microsoft 365 Copilot AI assistant adoption exceeding 30 million paid seats.
The company's adjusted net income climbed 22% to $35.3 billion, beating Wall Street's estimate, and management signaled it will remain free cash flow positive in fiscal 2027 despite heavy investment in AI services.
What happened
Microsoft shares rose nearly 22% this past week after reporting that revenue jumped 18% year-over-year to $90 billion in its fiscal 2026 fourth quarter (ended June 30). Azure cloud sales soared 43%, and the company's Microsoft 365 Copilot AI assistant reached over 30 million paid seats.
Why it matters
Azure's annual revenue topped $100 billion for the first time, signaling that Microsoft's bet on AI infrastructure is paying off at massive scale. Adjusted net income climbed 22% to $35.3 billion, or $4.74 per share—handily surpassing Wall Street's estimate of $4.24—and the company expects to remain free cash flow positive in fiscal 2027 even while ramping up AI investments.
What to watch
Microsoft 365 Copilot's adoption across Word, Excel, and Teams is a key driver of the productivity division's 14% revenue growth (to $37.8 billion in Q4). The company's ability to maintain profitability while scaling AI infrastructure will signal whether it can sustain this momentum.
Microsoft reported its fiscal 2026 fourth quarter results (ended June 30) on what proved to be an exceptionally positive earnings announcement. Overall revenue jumped 18% year-over-year to $90 billion, but the real standout was the cloud infrastructure division. Azure saw sales soar 43%, and CEO Satya Nadella announced that Azure's annual revenue topped $100 billion for the first time in fiscal 2026—a watershed moment for the company's cloud business.
The gains extended beyond cloud infrastructure into Microsoft's core productivity software. The company's productivity and business processes division reported revenue rising 14% to $37.8 billion in the fourth quarter, buoyed by growing adoption of Microsoft 365 Copilot, an AI assistant for Word, Excel, and Teams. Nadella highlighted this in his remarks: "Microsoft 365 Copilot reached over 30 million paid seats, reflecting the confidence customers are placing in us to power their AI transformation."
On the profitability side, adjusted net income climbed 22% to $35.3 billion, translating to $4.74 per share—a comfortable beat over Wall Street's estimate of $4.24 per share. Notably, management also projected that Microsoft expects to remain free cash flow positive in fiscal 2027, even as the company ramps up its investments to meet the booming demand for its AI services. This forward guidance reassured investors that the company's heavy spending on AI infrastructure will not jeopardize cash generation, helping drive the stock's nearly 22% rally in the week following the announcement.
Microsoft's nearly 22% stock surge reflects investor confidence that the company is successfully monetizing AI at scale. The headline figure—Azure's 43% sales growth and the breakthrough of $100 billion in annual revenue for the first time—shows that the AI infrastructure race is translating into concrete revenue gains. What distinguishes this quarter is not just cloud growth, but proof that AI is permeating Microsoft's core businesses: the Microsoft 365 Copilot reached over 30 million paid seats, contributing to 14% growth in the productivity division to $37.8 billion.
Profitability has not been sacrificed for growth. Adjusted net income climbed 22% to $35.3 billion, beating Wall Street's estimate of $4.24 per share with an actual result of $4.74. This is significant because it shows Microsoft is not burning cash to chase AI adoption; instead, the scale of its Azure platform and broad customer base is allowing it to invest heavily in AI infrastructure while maintaining strong margins. Management's confidence that the company will remain free cash flow positive in fiscal 2027—despite ramping up AI investments—suggests the business model is sustainable at this scale.
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