Microsoft Q4 FY2026: Azure crosses $100 billion, the order book hits $678 billion — the other side of the AI capex trade

Figures trace to Microsoft's Q4 FY2026 results release, filed July 29, 2026 as Exhibit 99.1 (accession 0001193125-26-323632), with prior-quarter baselines from the April 29 release (accession 0001193125-26-191457), both indexed and retrieved via Aether. Research, not investment advice.

Microsoft ($MSFT) closed its fiscal year with the quarter every AI bull wanted someone to file: revenue up 18 percent to $90.0 billion, operating income up the same 18 percent to $40.6 billion — margin held, no compression — and Azure growth accelerating to 43 percent from 40 percent last quarter. For the full fiscal year, Nadella put a milestone in writing: Azure revenue surpassed $100 billion for the first time, inside a company that did $331.8 billion total, up 18 percent, with $155.2 billion of operating income, up 21 percent.

The number that matters most for the next three years, though, is further down: commercial remaining performance obligation grew 84 percent to $678 billion. That is contracted, not-yet-recognized revenue — customers legally committed to future Microsoft Cloud consumption — and it grew another $51 billion in the single quarter since March's $627 billion print.

The seller's ledger

The same evening this exhibit hit EDGAR, Meta ($META) filed a quarter where $31 billion of capex compressed its operating margin from 43 to 31 percent and squeezed free cash flow to $784 million. Read together, the two filings are the two sides of a single trade. Meta is a buyer of AI infrastructure: the spending lands on its cost lines years before the new revenue exists. Microsoft is the seller: the same industry-wide build-out arrives as Azure growth of 43 percent, a $59.3 billion Microsoft Cloud quarter up 27 percent, and a $678 billion order book of customers pre-committing to capacity.

That's why Microsoft's margins held while growing 18 percent, and it's the cleanest filed evidence yet that in this phase of the cycle, the economics favor whoever owns the compute the others are racing to rent.

What grew and what didn't

Productivity and Business Processes reached $37.8 billion, up 14 percent: Microsoft 365 Commercial cloud up 14 percent as reported (16 percent adjusting for a prior-year revenue-recognition benefit), Consumer cloud up 24 percent, LinkedIn up 12 percent, Dynamics 365 up 13 percent. Nadella's statement adds a second milestone: Microsoft 365 Copilot passed 30 million paid seats — the largest disclosed paid-seat count for any enterprise AI product.

Intelligent Cloud did $39.3 billion, up 32 percent, with Azure's 43 percent doing the pulling. The soft spot is consumer hardware and gaming: More Personal Computing fell 4 percent to $12.9 billion, with Windows OEM down 7 percent, Xbox content and services down 10 percent — and the filing discloses impairment charges in Xbox alongside severance this quarter.

The Anthropic asterisk

EPS of $4.81, up 32 percent, deserves its footnote read aloud. The filing itemizes discrete items worth $0.27 of EPS versus April guidance — headlined by a $3.2 billion gain on Microsoft's investment in Anthropic, plus lower-than-expected Voluntary Retirement Program costs, partly offset by the Xbox charges. Microsoft now reports non-GAAP figures that strip its OpenAI stake — which swung from a $3.6 billion drag in FY2025 to a $5.0 billion net gain in FY2026 — while the Anthropic gain sits inside the GAAP print. The operating result, up 18 percent with margin flat, is the number that carries no asterisk at all.

How to read it

Three megacap AI exhibits have now landed inside eight days: Alphabet ($GOOGL) financing the build-out with a $49.6 billion equity raise, Meta financing it with debt and a 12-point margin give-up, and Microsoft — the one selling the capacity — compounding at 18 percent with margins intact and $678 billion contractually queued. The order books across these filings are no longer a forecast; they're a receivable. What remains genuinely open is whether the buyers' margins recover before the sellers' capacity catches up with demand.

The numbers, the trajectory and the fair-value math are on the Microsoft valuation dashboard, updated as filings land.

Source: Microsoft Corp. Form 8-K Exhibit 99.1, July 29, 2026 (accession 0001193125-26-323632), sec.gov, retrieved via Aether. EvidInvest provides information and analysis for educational purposes only and is not investment advice.