MSFT stock: OpenAI deal, EU Teams fix, and what to watch

TL;DR:
- Microsoft signed a non-binding MOU with OpenAI on Sept 11.
- The EU accepted Microsoft’s Teams commitments on Sept 12.
- Both moves could reshape Azure demand and margins.
- Capex and Azure growth remain the core drivers.
- Watch for a definitive OpenAI deal and EU rollout details.
On September 11, Microsoft and OpenAI said they signed a non-binding memorandum of understanding. It sets terms for the next phase of their partnership and lets OpenAI proceed with a for-profit restructuring, pending approvals. Details are not final, but both sides say work on a definitive agreement is underway.
Reuters reports the MOU would allow OpenAI to pursue a new structure while Microsoft seeks continued access to OpenAI’s technology. The report says OpenAI is targeting a private valuation near 500 billion dollars, with its nonprofit arm receiving over 100 billion dollars in equity value. It also notes OpenAI has lined up cloud contracts beyond Azure, including Oracle and Google, tied to its Stargate effort. Exclusivity could narrow as the ecosystem opens.
On September 12, the European Commission accepted Microsoft’s commitments in the Teams case. Microsoft will sell Office 365 and Microsoft 365 without Teams at a reduced price, among other steps. This removes a regulatory overhang and clarifies pricing in the EU.
Why these headlines matter for MSFT
The OpenAI MOU could reshape where AI workloads run. If OpenAI spreads training and inference across multiple clouds, Azure’s attach rate to OpenAI demand could soften, at least on the margin. Microsoft is hedging by training its own models and by pursuing a multi-model strategy in Microsoft 365 and GitHub Copilot. This reduces dependence on a single partner.
The EU Teams decision reduces fine risk and brings clarity for enterprise buyers in Europe. Unbundling may trim near-term suite ARPU in the EU, but it also removes uncertainty that slows deals. For large customers, clear options often speed procurement.
The base case still runs through Azure and capex
On July 30, Microsoft guided to a record 30 billion dollars of capital spending for fiscal Q1, citing strong AI demand. Azure revenue grew 39 percent in the June quarter. Copilot monthly active users topped 100 million. These are the core inputs for MSFT’s story.
A day later, Microsoft crossed a 4 trillion dollar market value after its report. The stock move underscored investor confidence that AI spending is turning into revenue.
What it means for the stock right now
As of September 12, MSFT trades near the 500 dollar level. The price embeds high growth and heavy capex. The MOU adds a small risk that OpenAI workloads diversify, yet Microsoft’s own model push and broad AI product set help offset that. The EU outcome cuts regulatory noise.
Short term, watch how the market reads three levers:
- Azure AI demand, shown in growth rates and backlog.
- Capex pace and mix, which drive depreciation and margins.
- The final OpenAI contract terms, which set access and economics.
What to watch next
- Definitive OpenAI agreement. Look for final terms on access, IP, and hosting rights. Timing signals deal momentum.
- EU implementation details. Pricing, packaging, and uptake of Teams-free suites in Europe. Early customer feedback will matter.
- Capex cadence. Any update to the 30 billion dollar fiscal Q1 plan and commentary on longer-lived assets versus chips.
- Azure growth. Whether 37 percent guidance for the current quarter holds, and how much is AI-driven.
Quick impact map
Driver | Direction | Stock read |
OpenAI MOU allows multi-cloud | Mixed | Slightly negative for Azure attach, but manageable |
Microsoft training in-house models | Positive | Lowers partner risk, improves product speed |
EU Teams commitments accepted | Positive | Removes fine risk, stabilizes Europe pricing |
Capex at record pace | Mixed | Fuels growth, weighs on near-term margins |
Azure growth near 40 percent | Positive | Confirms AI demand and monetization |
Sources support that Microsoft is investing in its own models while keeping multi-model options, that the EU accepted Teams remedies, and that AI demand is driving both revenue and spend.
Actionable checklist for readers
- Re-read the OpenAI terms when the definitive deal posts. Focus on exclusivity, IP rights, and model access.
- Track Azure AI commentary and backlog in the next earnings call.
- In Europe, watch customer response to Teams-free bundles and any pricing lift-ins.
Related: How Microsoft makes money from AI in Office
Related: Azure vs AWS, who is winning AI workloads
Why it matters
MSFT’s multiple reflects belief that AI spend turns into sticky cloud revenue. This week’s news tightens two big questions, partner exposure and EU risk, which can move the stock around earnings and contract news. Staying close to these updates helps you react fast.
Sources:
- Reuters, Microsoft, OpenAI reach non-binding deal to allow OpenAI to restructure, https://www.reuters.com/business/microsoft-openai-reach-non-binding-deal-allow-openai-restructure-2025-09-11/, 2025-09-12
- Official Microsoft Blog, A joint statement from Microsoft and OpenAI, https://blogs.microsoft.com/blog/2025/09/11/a-joint-statement-from-microsoft-and-openai/, 2025-09-11
- Reuters, EU accepts Microsoft commitments to address Teams competition concerns, https://www.reuters.com/sustainability/boards-policy-regulation/eu-accepts-microsoft-commitments-address-teams-competition-concerns-2025-09-12/, 2025-09-12
- Reuters, Microsoft to spend record $30 billion this quarter as AI investments pay off, https://www.reuters.com/business/microsoft-spend-record-30-billion-this-quarter-ai-investments-pay-off-2025-07-30/, 2025-07-30