Why Is Microsoft (MSFT) Stock Price Up 3.66% Today, Sep 25? Copilot Overhaul and AI Agent Monetization Lift MSFT

Microsoft shares rose 3.66% after a major Copilot redesign expanded capabilities into Office-integrated workflows, natural-language app creation, and persistent AI agents, alongside usage-based billing and FinOps controls. The update strengthens the near-term AI monetization narrative by linking agentic workloads to measurable spend and governance, potentially supporting enterprise adoption. Traders will focus on whether the post-announcement move holds technically and on follow-through evidence in Azure demand and paid Copilot usage.