Is Microsoft’s (MSFT) Push Into Proprietary AI Models Quietly Rewriting Its Investment Story?

• In late May 2026, Microsoft outlined a series of AI-focused moves, including unveiling homegrown models at its Build conference, deepening alliances like a US$1.00 billion EY AI initiative, and securing a US$9.70 billion five-year Pentagon software deal.
• Together with marketplace launches, governance-focused integrations such as Airia’s Model Risk Management on Microsoft Foundry, and expanding Copilot adoption, these steps underscore Microsoft’s push to control AI costs while embedding its stack deeper into enterprise workflows.
• We’ll now examine how Microsoft’s shift toward proprietary AI models and tighter cost control may influence its existing investment narrative.

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Microsoft Investment Narrative Recap

To own Microsoft today, you need to believe its heavy AI and cloud spending will keep translating into durable, high-margin software and services tied to Azure and Copilot. The latest push into homegrown AI models and a US$9.70 billion Pentagon deal reinforces the near term catalyst around AI monetization and backlog conversion, while the main risk remains whether massive AI CapEx ultimately earns its keep. So far, this news looks incrementally supportive rather than thesis-changing.

Among the recent updates, the expanded EY alliance, with US$1.00 billion earmarked over five years to co-build and deploy enterprise AI solutions on Microsoft’s stack, speaks directly to that catalyst. It showcases how partners can drive AI usage inside Microsoft 365, Azure and Copilot, potentially deepening the software layer that makes all those data center dollars work harder for customers and, over time, for shareholders.

Yet even with these wins, investors should be aware that the sheer scale of AI CapEx could become a problem if...

Read the full narrative on Microsoft (it's free!)

Microsoft's narrative projects $504.4 billion revenue and $192.9 billion earnings by 2029. This requires 16.6% yearly revenue growth and about a $67.7 billion earnings increase from $125.2 billion today.

Uncover how Microsoft's forecasts yield a $561.93 fair value, a 25% upside to its current price.

Exploring Other Perspectives

Before this news, the most optimistic analysts were banking on revenue climbing toward about US$515 billion by 2029, far above consensus, and saw Microsoft’s massive AI CapEx as a clear positive. If you worry that such heavy spending could leave underused data centers instead, that is a very different read on the same AI buildout and this kind of contrast is exactly why it helps to weigh multiple narratives side by side.

Explore 81 other fair value estimates on Microsoft - why the stock might be worth 7% less than the current price!

Decide For Yourself

Don't just follow the ticker - dig into the data and build a conviction that's truly your own.

• A great starting point for your Microsoft research is our analysis highlighting 5 key rewards and 1 important warning sign that could impact your investment decision.
• Our free Microsoft research report provides a comprehensive fundamental analysis summarized in a single visual - the Snowflake - making it easy to evaluate Microsoft's overall financial health at a glance.

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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.

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