Micron Technology climbed more than 7% on Wednesday to $932.46, lifting its market capitalization to $1.04 trillion and making it the world's 15th-largest listed company. The move was driven by a mix of sector signals: a report that Singapore state fund Temasek is planning stakes in Samsung Electronics and SK Hynix, stronger earnings and spending plans from AI infrastructure companies, and comments from Intel's chief executive that memory makers are sold out for two years. CoreWeave raised its 2026 capital spending plan to as much as $39 billion and its shares rose 18%, while Lumentum more than doubled revenue to $1.01 billion. Together, those developments reinforced the view that data center expansion tied to AI workloads remains strong, supporting expectations for sustained demand across the memory supply chain. The Roundhill Memory ETF rose 7.7%.