AI infrastructure enters the earnings validation phase: Can Lumentum, Coherent, and CoreWeave kick off the next rally?
Over the past two years, AI investment has been highly concentrated in GPUs, large-model training, and cloud computing giants. As 2026 gets underway, market attention is shifting downward from the model layer to the physical infrastructure supporting AI operations—optical communications, data centers, computing power rentals, and semiconductor manufacturing equipment. This week (August 10–16), this thesis will face a concentrated round of earnings tests. Optical module leaders Lumentum Holdings




















