Lumentum (LITE) Stock News This Week: Why Shares Whipsawed, What Analysts Forecast, and What to Watch Next Week (Updated Dec. 12, 2025)
Lumentum Holdings Inc. (NASDAQ: LITE) ended the week with a sharp reversal that underscored just how “crowded” the AI-infrastructure trade has become in late 2025. After powering higher for most of the week, Lumentum stock closed Friday, Dec. 12, at $324.35, down 12.83% on the day, with heavy volume and a wide intraday range that signaled aggressive de-risking into the weekend. Below is a detailed, publication-ready breakdown of what moved Lumentum stock this week, the latest forecasts and outlook, and the key catalysts investors are watching for the week ahead (Dec. 15–19, 2025). Lumentum stock price action this week: a