Microsoft stock ripped higher today, jumping about 15% to roughly US$451 after a single quarter forced investors to rethink what they are willing to pay for the company. The move caps a strong run over the past month, and the real story sits in the earnings power that drove this repricing.

Full year revenue reached about US$332b with operating income north of US$155b, and trailing earnings now put Microsoft on a P/E of roughly 25x. The market reaction is loud. The question for you is how long that earnings engine can justify or reshape this valuation.

Impressed by Microsoft’s earnings strength but wondering if you are paying too much for that growth engine at a roughly 25x P/E? Take a look at our hand picked list of 56 high quality undervalued stocks.

FY 2026 Earnings Summary

• Q4 FY 2026 Revenue: US$90,007m vs. Q4 FY 2025 revenue of US$76,441m (up about 18%)
• Q4 FY 2026 Net Income (Excl. Extra Items): US$35,766m vs. Q4 FY 2025 net income of US$27,233m (up about 31%)
• Q4 FY 2026 Basic EPS: US$4.82 per share vs. Q4 FY 2025 basic EPS of US$3.66 per share (up about 31%)
• Trailing 12 Month Net Profit Margin: 40.3% vs. prior-year margin of 36.1% (margin improved)

Prefer clear visuals instead of scrolling through dense earnings tables and raw figures for Microsoft? See the full picture of its valuation at a glance with our interactive company report for Microsoft.

Microsoft’s AI Flywheel: Milestones Turning Into Revenue

The bullish story around Microsoft rests on AI driven cloud demand, more usage based monetization and the idea that heavy data center spend can still support strong profitability. The latest numbers show that this is starting to show up in the real business. Microsoft Cloud reached about US$214b and Azure moved past US$100b with 41% growth, which points to large scale workloads actually landing on the platform rather than sitting in pipeline talk.

On monetization, more than 30m paid Microsoft 365 Copilot seats and rapid early adoption of Agent 365 point to the seat plus usage model moving from concept to paid deployments. Foundry revenue more than doubled and Fabric now has over 40,000 paid customers, which supports the idea that data and agent platforms are gaining traction. Operating margin near 45% despite AI focused capex shows margins are holding while this AI buildout ramps.

Compare this AI driven growth story with what institutional analysts are actually baking into their models. Reveal the consensus price target analysis for Microsoft to see how Wall Street is lining up against Microsoft’s latest earnings run.

Microsoft Bear Case: Capex Strain vs AI Monetisation

The cautious view says Microsoft is taking on heavy AI data center capex and partnership commitments that could compress margins and leave investors with lower quality cash flow. The latest quarter partly undercuts that. Revenue reached US$331b with operating income above US$155b and operating margin near 45% even as capex hit US$41b, with FY27 capex expected to grow further. That is a key milestone the bears were watching for margin erosion, and it has not shown up yet at the operating line.

However, several risks are not cleared. Gross margin sits at 67% and is lower year on year as mix shifts toward AI infrastructure. AI buildout still leans on short lived GPU and CPU assets and rising power constraints, while regulatory investigations into Microsoft 365 pricing and Copilot bundling keep legal and pricing flexibility questions open. The capital intensity story is not resolved, only deferred.

Review whether heavy AI capex, margin pressure and significant insider selling hint at deeper issues. Expose them through our risk analysis for Microsoft which shows 1 important warning sign.

Stay Ahead Of Your Next Move

If Microsoft’s earnings strength and AI buildout have your attention, register for free with Simply Wall St and add it to a Watchlist to track price against fair value and watch for a better entry point. After you buy or add to a position, use the Portfolio Command Center to cut through noise and focus on the key developments that matter for your holdings. For a longer term view, lean on the Community to see how other investors are thinking about opportunities and risks across the market. By spotting potential catalysts and pressure points early, you give yourself a better chance of staying ahead of the next big move.

Seeking Alternatives Beyond Microsoft Right Now

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.