Microsoft Corporation (MSFT) | The Buildout — AI Infrastructure
The Verdict
Microsoft runs one of the world's largest cloud businesses and one of its largest software businesses at the same time. Azure rents compute and AI services to enterprises and model developers, while Microsoft 365, Copilot, Dynamics, LinkedIn and the security portfolio sell software on top of that platform. In the AI buildout, Microsoft sits on both sides of the same transaction: it is a top buyer of GPUs, memory, power and data-center capacity, and a top supplier of AI compute to everyone else. The company frames its organizing idea as the agentic computing era — agents grounded in enterprise data, running on a platform it sells.
| Market Cap | — |
| Revenue (TTM) | $331.8B |
| Revenue Growth | +17.8% |
| EBITDA Margin (TTM) | 58.4% |
| Net Debt | $52.0B |
| Earnings Beats | 7 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Azure grew 43% in FY26 Q4 and is guided to ~45% cc in Q1 FY27, with management saying customer demand continues to exceed available capacity.
- Commercial RPO reached $678B, +84% including OpenAI and +25% excluding it; the company says all sequential RPO growth came from customers outside frontier-model companies.
- M365 Copilot passed more than 30M paid seats in Q4, up from more than 20M in Q3, and customers with more than 50,000 seats grew more than 7x year-over-year.
- The company disclosed an AI business ARR above $37B, up 123%, on the FY26 Q3 call — the cleanest AI-scale number in the record, though it was not restated in Q4.
- Management cites measurable cost takeouts: 4x Copilot throughput since the start of the year, an 89% GPU cost reduction in Dynamics 365, and Maia 200 at 30% better performance per dollar.
What We’re Watching
- Capacity and power remain the gate: management says demand exceeds supply and expects to remain constrained at least through 2026.
- Gross margin is compressing — company 67% and Microsoft Cloud 65% in FY26 Q4, both down year-over-year — against an FY27 guide of operating margin down less than 1 point.
- Depreciation rose 55% year-over-year in the March 2026 quarter, roughly three times revenue growth, while the 15-to-25-year useful-life change is described as a minimal FY27 operating-income benefit.
- The seat-to-consumption transition is already weighing on Dynamics 365 renewals and CRM sales cycles; M365 Commercial cloud acceleration through FY27 is the disclosed test.
The thesis is strengthening on the demand side and intact on the operating side. Azure, Copilot seats and RPO all grew, and the near-term guides from the prior quarter were met or beaten. What the evidence does not show is the return on the capital program — management declined to give a quantified capex-ROI figure when asked directly. The open question is whether seat-plus-consumption net-adds or net-drains bookings, and whether gross margin stabilizes.
Earnings Beat
Microsoft reported FY26 Q4 revenue of $90,007M, up 18% year-over-year, with company gross margin of 67.2% and operating margin 45%. Commercial RPO duration is 2.3 years weighted average, with about 30% recognized in the next 12 months, up 37% year-over-year, and beyond-12-month RPO up 112%. Q4 capex was $41B and free cash flow $19,639M, both shaped by the AI infrastructure build.
| Metric | Q4 FY2026 | Q3 FY2026 | Q4 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $90.0B | $82.9B | $76.4B | +17.7% |
| Gross margin | 67.2% | 67.6% | 68.6% | -140bps |
| EBITDA | $46.7B | $48.6B | $45.5B | +2.6% |
| EPS | $4.80 | $4.27 | $3.65 | +31.5% |
| Commercial RPO (remaining performance obligation) | $678B | $627B | n/a | +84% incl OpenAI; +25% ex |
| M365 Copilot paid seats | >30M | >20M | n/a | Net paid seat adds more than doubled sequentially |
All sequential commercial RPO growth was driven by commitments from customers outside of frontier model companies.— Amy Hood, Chief Financial Officer, 2026-07-29
Management tone: Management's posture on the FY26 Q4 call was confident, execution-forward and unusually explicit about constraints. It repeated that customer demand continues to exceed available capacity. Versus the prior quarter it reported Azure acceleration to 43%, Copilot seats past 30M and RPO mix shifting away from frontier-model companies. It acknowledged component cost inflation, Dynamics CRM moderation and the Xbox reset — and it went silent on the FY27 headcount-decrease guide it had given in April. It did not address the securities class action on either call.
Management Guidance
For FY27, management guides to another year of double-digit revenue and operating income growth, operating expenses growing at 7–8%, capex growing year-over-year, and operating margin down less than 1 point. For Q1 FY27 it guides revenue of $89.85B–$90.95B (16–17% growth), Azure ~45% cc, M365 Commercial cloud ~16% cc adjusted, operating margin relatively flat, and capex above $50B including the lease reclassification. Calendar 2026 capex was adjusted to ~$175B from ~$190B on the useful-life change, with the underlying expectation unchanged; the useful life of data centers and office buildings was extended from 15 to 25 years effective the start of FY27.
Trajectory
Revenue has grown steadily in dollar terms, with the June quarter up 8.6% sequentially to $90,007M. The mix is shifting: service revenue grows much faster than product revenue, and in the June quarter Intelligent Cloud passed Productivity and Business Processes to become the largest segment. Margins are compressing. Company gross margin drifted from 69.0% in Q1 FY26 to 67.2% in Q4, which the filings attribute to AI infrastructure investment and growing AI product usage, partly offset by efficiency gains. EBITDA margin fell from 65.7% to 51.9% over the same span. Depreciation is outrunning revenue, and free cash flow was $19,639M in Q4 against $25,568M a year earlier as capex rose.
The Model
The model projects FY+1 revenue of $393,200M and EBITDA of $227,270M (57.8% margin), and FY+2 revenue of $464,000M and EBITDA of $266,800M (57.5% margin). The near-term anchor is the guided acceleration in Azure and M365 Commercial cloud plus a contract book of $678B. FY+2 depends on whether the capacity program converts into revenue roughly as fast as it is built, and whether the efficiency claims on first-party silicon hold margins near 57%.
| Metric | FY2026 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $331.8B | $393.2B | $464.0B |
| YoY Growth | — | +18.5% | +18.0% |
| EBITDA | $193.8B | $227.3B | $266.8B |
| EBITDA Margin | 58.4% | 57.8% | 57.5% |
Projections are the median of 5 independent model runs. The model’s revenue sits 1.6% above analyst consensus.
For FY27, management guides to another year of double-digit revenue and operating income growth, operating expenses growing at 7–8%, capex growing year-over-year, and operating margin down less than 1 point. For Q1 FY27 it guides revenue of $89.85B–$90.95B (16–17% growth), Azure ~45% cc, M365 Commercial cloud ~16% cc adjusted, operating margin relatively flat, and capex above $50B including the lease reclassification. Calendar 2026 capex was adjusted to ~$175B from ~$190B on the useful-life change, with the underlying expectation unchanged; the useful life of data centers and office buildings was extended from 15 to 25 years effective the start of FY27.
What Could Go Right — and Wrong
- Azure holds ~45% cc and then accelerates into the first half of FY27, converting the capital program from a margin drag into a revenue engine.
- Cloud gross margin stabilizes at 65–66%, confirming the efficiency claims on first-party silicon and model cost takeouts.
- M365 Commercial cloud accelerates through FY27, showing seat-plus-consumption adds more bookings than it drains.
- The ex-OpenAI RPO growth rate holds at ~25% or better while the next-12-month conversion portion keeps growing at ~37%.
- Xbox returns to growth in fiscal 2027 and Windows OEM decline stays within the guided high-teens range, shrinking the non-AI drag.
- AI demand slows and $196.6B of not-yet-commenced leases plus capacity doubling in about two years becomes exposure rather than ambition.
- Gross margin breaks below the guided path, showing depreciation, power cost and component inflation cannot be absorbed by operating leverage.
- Capacity delivery slips, hitting the one line the Azure acceleration depends on.
- The seat-to-consumption transition drains net bookings, extending the Dynamics renewal weakness into the larger M365 line.
- A power or grid interruption at a named generation or transmission counterparty, which the cross-stack theme names as the binding constraint through 2028.
Looking Ahead
The next 12 months turn on execution against a specific and rising guide. Azure is guided to ~45% cc in Q1 FY27 with first-half acceleration expected; M365 Commercial cloud is guided to accelerate through the fiscal year; capex is guided to grow year-over-year. Named product milestones include the Cobalt 200 rack rollout, rack-scale deployments based on AMD Helios and NVIDIA Vera Rubin, and Project Perception moving beyond private preview. Named capacity milestones include Chevron's 2.67 GW Project Kilby, Constellation's 835 MW Crane restart and Brookfield's 10.5 GW framework. The signposts that would confirm the story are the Q1 FY27 print landing inside the guided ranges and cloud gross margin stabilizing.
- Q1 FY27Q1 FY27 earnings — Guided revenue $89.85B–$90.95B; Azure ~45% cc; capex above $50B
- Fiscal 2027Xbox return to growth — Management committed to returning Xbox to growth in fiscal 2027
- FY27M365 cloud acceleration — M365 Commercial cloud guided to accelerate through the fiscal year
- FY2026–FY2031Not-yet-commenced leases — $196.6B of data center leases commence over this window
Financials
Annual Summary
| Metric | FY2025 | FY2026 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $281.7B | $331.8B | $331.8B | +17.8% |
| Gross Margin | 68.8% | 68.0% | 67.9% | 90bps |
| EBITDA | $162.7B | $193.8B | $193.8B | +19.1% |
| EBITDA Margin | 57.7% | 58.4% | 58.4% | +65bps |
| Net Income | $101.8B | $133.7B | $133.7B | +31.3% |
| Free Cash Flow | $71.6B | $67.0B | $67.0B | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)67.9%
- EBITDA Margin (TTM)58.4%
- Net Margin (TTM)40.3%
- ROIC24.8%
- FCF Conversion34.6%
- SBC / Revenue3.7%
The Company
Microsoft reports in three segments. Productivity and Business Processes sells Microsoft 365 Commercial and Consumer, LinkedIn and Dynamics. Intelligent Cloud sells Azure, server products and enterprise services — the segment AI work runs through. More Personal Computing holds Windows, Devices, Gaming and search advertising. In the June 2026 quarter, Intelligent Cloud at $39.3B passed Productivity and Business Processes at $37.8B to become the largest segment in this evidence. Management's own framing is that everything growing fast is AI-driven and the shrinking parts — Xbox, Windows OEM, Devices — are not.
Operationally, Microsoft is asset-heavy in a way it was not a decade ago. It builds and leases data centers, buys GPUs and CPUs, and signs long-dated power agreements. In the June 2026 quarter it added 31 new data centers across five continents — 88 for the fiscal year — and another gigawatt of capacity, and says it is on track to roughly double capacity in about two years. It also buys third-party compute from CoreWeave, Nebius and IREN, and runs a first-party silicon program (Maia 200, Cobalt) alongside NVIDIA and AMD. Headquarters are in Redmond, Washington, with about 15 million square feet in King County; the largest leased international properties are in Australia, Canada, China, France, Germany, India, Ireland, Israel, Japan, the Netherlands and the United Kingdom.
Business Segments
Competitive Landscape
Microsoft names competitors in several places. Its 10-K lists Dell, Hewlett-Packard and Lenovo as OEM distribution partners for its products and classifies the same companies as competitors in the same filing. At the infrastructure layer it competes with Google Cloud and AWS, and now with the neoclouds: it buys capacity from CoreWeave, Nebius and IREN while competing with them for AI workloads. Management frames Azure as model-agnostic — Nadella's architecture keeps the harness separate from the model so any model is swappable. The evidence places the durability in the enterprise app and identity layer, not in the compute itself.
- DellNamed in the 10-K as an OEM distribution partner covering one or more Microsoft products; classified as a competitor in the same filing.
- Hewlett-PackardNamed in the 10-K as an OEM distribution partner covering one or more Microsoft products; classified as a competitor in the same filing.
- LenovoNamed in the 10-K as an OEM distribution partner covering one or more Microsoft products; classified as a competitor in the same filing.
- Google CloudNamed as a rival at the infrastructure layer; the cross-stack read-through cites +82% y/y revenue growth and a $514B backlog.
- CoreWeaveBoth a supplier and a competitor: about 67% of its 2025 revenue came from Microsoft, and it claims TCO up to 47% lower than the average hyperscaler.
Supply Chain
Microsoft sits on both sides of the AI supply chain — buying GPUs, memory, power and construction, and selling AI compute and software to enterprises. The 10-K flags an unnamed sole-source dependency for certain server and device components.
More on MSFT: Earnings recap