Microsoft launched Copilot Business globally on December 1, 2025, bringing Microsoft 365 Copilot capabilities to small and medium businesses at an accessible price point for organizations with fewer than 300 users[3]. The company also announced Voice in Microsoft 365 Copilot now generally available for commercial customers, Word/Excel/PowerPoint agents, and major enterprise AI infrastructure updates including Dynamics 365 ERP integration and unified context layers across Work IQ, Fabric IQ, and Foundry IQ[1]. MSFT traded at $488.83 (-0.65%) in pre-market on December 1, down from the November 28 close of $492.01[2]. The modest decline reflects broader market weakness (NASDAQ-100 down 0.93%, S&P 500 down 0.67%) rather than company-specific concerns, as the announcements represent strategic AI expansion initiatives.