Lumentum Holdings (LITE) After-Hours Surge on December 9, 2025: AI Boom, Lofty Valuations, and What to Watch Before the December 10 Open
Lumentum Holdings Inc. extended its powerful 2025 rally on Tuesday, December 9, with shares pushing to fresh record territory and holding up in after-hours trading. The move capped a day dominated by optimism around AI data‑center infrastructure, even as more analysts warn that the stock’s valuation is starting to look stretched.