Why is Lumentum stock rallying today?

Market activity shows divergent trends for key companies today. Lumentum and Celestica are both experiencing stock rallies, driving their share prices upward. In contrast, JetBlue Airways is facing a severe collapse in its stock value. These movements reflect varying investor sentiments across the technology and aviation sectors. While the rally for Lumentum and Celestica indicates positive momentum, the sharp decline for JetBlue Airways highlights significant downward pressure on the airline's current market valuation.