Micron Technology (MU) Surges After the Bell on December 8, 2025: AI Memory Boom, Price Target Hikes and What to Watch Before the December 9 Open
Micron Technology closed at about $247 on December 8, up 4.1%, then rose another 0.6–0.8% after hours, nearing $249. The stock is up roughly 180% year to date, trading close to its 52-week high. Monday’s rally followed analyst upgrades and optimism over AI-driven memory demand. Micron’s market cap reached around $275–280 billion after the session.