Microsoft received unanimous site plan approval for a massive expansion in Mount Pleasant, Wisconsin, planning 15 new data centers totaling 8.7 million square feet, which drove positive sentiment as the stock traded up 1.54% at $450.96.
- This expansion is the largest since 2024, building upon the company's existing $7.3 billion commitment dedicated to supporting AI infrastructure.
- The site plan was unanimously approved on January 21, 2026, alongside announcements regarding 330 new Marketplace offers and community AI infrastructure initiatives.