Microsoft shares spent most of 2026 grinding lower before the company's fiscal fourth-quarter results, released for the period ending June 30, ended that slide with an 18 percent rally in a single week. At $495.40, the stock has recovered all of its year-to-date losses and then some—an unusual magnitude of move for a company whose market capitalization exceeds $3 trillion.
The headline number that drove the rally: quarterly revenue of $90 billion, up 18 percent year-over-year and ahead of Wall Street estimates. Net income grew 31 percent against the same quarter a year earlier. For the full fiscal year, earnings per share reached $17.95, up 32 percent year-over-year.
Azure was the engine. The cloud infrastructure platform posted 43 percent revenue growth in the quarter, crossing $100 billion in annual revenue for the first time. That milestone puts Azure in a tier occupied by very few businesses—cloud platforms generating nine-figure annual revenue at double-digit growth rates. The $100 billion threshold had been a long-watched target for investors tracking whether Microsoft's AI infrastructure spending was generating proportional returns.
CEO Satya Nadella said on the earnings call that Microsoft 365 Copilot, the company's AI productivity suite built on top of its enterprise software stack, has surpassed 30 million paid seats. That figure is a direct test of whether Microsoft can convert its installed base of enterprise customers into AI paying customers—and 30 million seats suggests the conversion is working. Nadella also said AI demand continues to exceed supply despite the company's ongoing data center and infrastructure buildout.
That last point carries real weight. Microsoft has drawn criticism throughout 2026 for the scale of its AI capital expenditures, with investors questioning whether the returns would justify the spending. Nadella has responded by repositioning the company as a cost-effective AI provider, leaning into proprietary silicon and in-house frontier models rather than routing customers exclusively through third-party model providers. The strategy appears to be landing with enterprise buyers who are sensitive to the per-token costs of running frontier models at scale.
Before the earnings report, Microsoft was trading at roughly 19 times forward earnings estimates—a low multiple for a company of its profile. A stock at that valuation required only a strong quarter, not a perfect one, to spring higher. The 18 percent post-earnings move reflects how compressed the pre-report valuation had become after months of AI spending skepticism.
At $495.40, Microsoft now trades at approximately 25 times forward earnings. That is a higher entry point than pre-earnings buyers faced, but the math still supports the stock. Analysts are projecting 15 to 16 percent average annual earnings growth over the next three to five years. A 31 percent net income jump in the most recent quarter makes those estimates look conservative, not aggressive. A stock growing earnings at 15 percent annually and compounding from a 25x multiple is a reasonable long-term hold, not an expensive speculation.
The Azure story is the central investment case. At $100 billion in annual revenue and 43 percent growth, Azure is not a mature, slowing platform—it is accelerating. The AI infrastructure buildout that Wall Street spent most of 2026 penalizing Microsoft for is now visibly producing revenue. Data center spending that was treated as an uncertain cost center is generating the Azure growth that drove 43 percent in a single quarter.
The 30 million Copilot paid seats add a second revenue layer on top of infrastructure. Microsoft 365 Copilot sits inside the enterprise software products—Teams, Word, Excel, Outlook—that large organizations already pay for and cannot easily remove. Adding AI features to that installed base at a premium price point is a high-margin expansion strategy. The 30 million figure, if it continues to grow at anything near the rate Azure is growing, represents a material earnings contributor within the next 12 to 24 months.
The risk is that AI demand slows before Microsoft finishes building out the supply side. Nadella's comment that demand outpaces supply is bullish in the short term—it implies pricing power and full utilization. But it also means the company is still spending heavily to catch up, and any cooling in enterprise AI adoption would leave that capital deployed against weaker-than-expected demand.
For now, the numbers do not support that concern. Azure at 43 percent growth, Copilot at 30 million seats and net income up 31 percent are not the metrics of a company whose AI bet is struggling. Microsoft enters fiscal 2027 with the momentum it needed, and Azure's $100 billion milestone removes the largest question mark that was overhanging the stock all year.
