Microsoft (MSFT) Stock Today — Nov. 11, 2025: Shares Edge Higher as $10B Portugal AI Hub, Patch Tuesday Fixes and New Enterprise AI Deals Dominate Headlines
Microsoft shares rose 0.6% to $508.68 late Tuesday after the company announced a $10 billion AI data center investment in Sines, Portugal, with partners including NVIDIA. Microsoft also released security updates fixing 63 vulnerabilities, including an actively exploited zero-day. Essity selected Accenture and Microsoft to expand AI adoption. The Dow closed at a record high; Nvidia shares fell.