Microsoft's Azure cloud unit grew revenue 43% year over year in the fiscal fourth quarter, with executives pointing to rising use of AI agents as a key driver. CEO Satya Nadella described the shift toward agentic AI as a new phase for the industry, and the company expects Azure growth to accelerate further in the current quarter.
Azure revenue grew 43% year over year in the fiscal fourth quarter ended June 30, 2026. The unit also surpassed $100 billion in full-year revenue, and CEO Satya Nadella said the strength is likely to continue, pointing to agents that run continuously across a user's files and network rather than one-and-done chat exchanges.
Nadella frames agents as a new paradigm
At Microsoft's Build conference on June 2, 2026, Nadella described the rise of agents this way. According to The Motley Fool: "a new paradigm". Because Azure is the cloud layer that powers those agents, more agent activity typically translates into more Azure usage.
Foundry and Fabric adoption accelerates
On the fiscal Q4 earnings call in July, management said customers were rapidly adopting Microsoft's database and analytics services to support AI agents. The number of customers using both Microsoft Fabric and Foundry, a product that helps companies build custom agents, grew 60% year over year last quarter. The number of Foundry customers consuming 1 trillion tokens annually grew 4x versus the year-ago quarter.
CFO Amy Hood said additional Azure compute capacity brought online during the quarter was quickly monetized, yet Azure remains supply-constrained. As a result, Microsoft expects Azure revenue to accelerate again to about 45% year over year on a constant-currency basis in fiscal Q1 2027.
Cash flow rises as capital spending grows
Azure remains a relatively small portion of Microsoft's $332 billion in annual revenue, but it's growing at more than twice the pace of the overall company. Supporting that demand requires higher capital expenditures, but Microsoft is converting revenue into higher cash flows: cash from operations rose 30% year over year to $55 billion in the quarter, supported by cloud billings and collections.
The stock fell earlier this year after investors worried that growing use of agents would lead to lower spending on Microsoft's software and cloud services. Microsoft has since leaned into its enterprise trust by introducing Agent 365, which extends the same security and governance controls used across Microsoft 365 and Azure to agents. Agent 365 has already registered 40 million agents within two months of launch.
Source: The Motley Fool
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