Lumentum Shares Rise 4% Pre-Market as CEO Says Optical Component Capacity Sold Out Through Early 2029

The signal here is less about one company's order book than about the visibility of demand for optical networking components, which sit upstream of AI data-center buildouts. A sold-out capacity position extending that far out implies buyers are locking in supply rather than spot-sourcing, a shift that typically favors incumbents with existing fab footprints. The open question is whether this reflects genuine end-demand or defensive stockpiling along the supply chain.