Microsoft's Q4 FY2026: $3.2B Anthropic Gain, OpenAI Stake Write-Down, and Azure Growth

Microsoft reported a $3.2 billion gain from its investment in Anthropic during fiscal Q4 2026, which added $0.33 to diluted earnings per share. Concurrently, the company recorded a $600 million write-down of its OpenAI stake for the quarter, reducing EPS by 7 cents, as part of its broader financial results that included $90 billion in revenue and $35.8 billion in net income.

Strategic AI Investments Yield Mixed Quarterly Results

Microsoft's financial report for fiscal Q4 2026 highlighted a $3.2 billion gain attributed to its investment in AI startup Anthropic. This gain significantly boosted the company's diluted earnings per share (EPS) by $0.33. The investment, initially valued at $5 billion in November 2025, also secured a long-term commitment from Anthropic to spend $30 billion on Microsoft's Azure cloud services, reinforcing the strategic alignment between the two entities.

Conversely, the quarter saw Microsoft mark down its investment in OpenAI by approximately $600 million, which reduced EPS by 7 cents. Despite this quarterly adjustment, the full fiscal year 2026 still reflected a positive outcome for the OpenAI investment, generating a $5 billion gain and contributing $0.67 per share on an annual basis. This indicates that while there was a quarterly revaluation, the long-term strategic value of the OpenAI partnership remains substantial for Microsoft.

Azure's Continued Expansion and Capital Expenditures

Microsoft's cloud computing Microsoft's cloud computing platform, Azure, achieved a significan, Azure, achieved a significant milestone in fiscal year 2026, surpassing $100 billion in revenue for the first time. This represents a robust 41% year-over-year growth, demonstrating the increasing demand for cloud services and Microsoft's strong position in the enterprise market. The commitment from Anthropic to utilize Azure further solidifies this growth trajectory.

To support its expanding cloud infrastructure and AI initiatives, Microsoft reported capital expenditures of $41 billion for the quarter, marking a substantial 69% increase year-over-year. This aggressive investment in data centers and other infrastructure is expected to continue growing into fiscal year 2027, signaling Microsoft's intent to maintain its leadership in AI and cloud computing. These expenditures are crucial for powering advanced AI models and services like Anthropic's Claude and Microsoft's own AI innovations.

Implications for Microsoft's AI Strategy

The latest financial results from Microsoft provide a clear picture of its multi-faceted AI strategy. The significant gain from Anthropic, coupled with the long-term Azure commitment, highlights a successful partnership model that drives both financial returns and cloud service adoption. The quarterly write-down of the OpenAI stake, while notable, appears to be a revaluation within a broader context of overall annual gains, suggesting a nuanced approach to managing its diverse AI investments.

Microsoft's substantial capital expenditures underscore its commitment to building the foundational infrastructure necessary for the next generation of AI. This investment is not just about supporting existing services but also about preparing for future advancements and ensuring Azure remains a leading platform for AI development and deployment. The company's focus on integrating AI across its product ecosystem, including services like Copilot, further emphasizes its strategic direction.

Key Takeaways

• Microsoft recorded a $3.2 billion gain from its Anthropic investment in Q4 FY2026.
• The company marked down its OpenAI stake by $600 million for the quarter, but the full-year gain remained $5 billion.
• Azure revenue exceeded $100 billion in FY2026, growing 41% year-over-year.
• Microsoft's capital expenditures reached $41 billion, a 69% increase, signaling continued infrastructure investment.
• Anthropic committed to $30 billion in Azure spending as part of its investment deal.

Sources

• Our investment in AI infrastructure, skills and security to boost the UK’s AI potential - Microsoft On the Issues
• https://techcrunch.com/2026/07/29/microsoft-logs-3-2b-from-anthropic-investment-but-openai-was-a-mixed-bag/
• https://www.cnbc.com/2026/07/29/microsoft-msft-q4-earnings-report-2026.html