Microsoft beat analysts’ expectations in the fiscal fourth quarter ended June, reporting $90 billion in revenue and $35.8 billion in net income. The results arrive as proof, or at least a credible down payment, that the billions poured into cloud and artificial intelligence infrastructure are beginning to convert into something investors can see on an income statement.
The AI line items
The company disclosed two specific AI-related gains that read more like venture returns than operating metrics. A $3.2 billion mark-to-market gain on its Anthropic investment landed in the quarter, while its OpenAI stake contributed $480 million to net profit in the fourth quarter and $4.9 billion for the full fiscal year. Copilot, the AI productivity layer Microsoft is embedding across its enterprise stack, now counts more than 30 million paid users. Satya Nadella called it evidence of customer confidence in using Microsoft to “power their AI transformation,” which is the kind of phrasing that appears in earnings releases when the revenue trajectory is finally steep enough to speak for itself.
The infrastructure arms race
The scale of capital deployment across the sector remains difficult to internalize. Amazon, Microsoft, Alphabet and Meta are collectively on track to spend roughly $700 billion on AI data centers, chips and computing infrastructure in 2026 alone. Alphabet recently moved to raise up to $80 billion in stock to fund its own build-out, with Berkshire Hathaway committing $10 billion. Microsoft’s quarter suggests the spend is not a speculative binge but a prerequisite for the revenue now showing up in commercial cloud and the Copilot attach rate. Whether the return on invested capital ever matches the hype cycle is a separate question, but the cash flow statement is no longer purely an outflow story.
The analyst call ahead
Investors will parse the July 29 analyst call for signals on whether the pace of capital expenditure accelerates, plateaus or gets redirected toward inference rather than training. The market has priced in a lot of AI optimism; the risk is not that Microsoft misses the next quarter but that the marginal dollar of infrastructure spend stops producing marginal revenue growth. For now, the numbers are doing the talking.