Microsoft's 20-Year Highest Single-Day Gain: Azure and OpenAI Cross $100 Billion Revenue Milestone

Microsoft stock surged 17% to above $455, marking its largest single-day gain in 20 years. The share climbed from $390.54 to $456, adding $483 billion in value during the session. Azure revenue surpassed $100 billion for the 2026 fiscal year, while OpenAI contributed $24.1 billion. CEO Satya Nadella and CFO Amy Hood's strategy to convert $190 billion in AI spending into growth was validated as Azure delivered 43% year-over-year growth. Microsoft 365 Copilot seats hit 30 million, exceeding expectations. BNP Paribas analyst Stefan Slowinski noted Microsoft has achieved revenue growth outpacing capex. Kaptan Rıza Deniz analysis: This performance underscores the sustainability of AI-driven cloud expansion. Microsoft must monitor its OpenAI dependency as AWS and Google Cloud intensify competition. How will markets react to this development?