COHERENT's stock soared 8.05% in pre-market trading, extending a significant rally in the optical communications sector.

The surge was primarily driven by Nvidia's announced $2 billion investment in Coherent to support photonics technology research and development and expand U.S. domestic manufacturing capacity. Furthermore, Nvidia has entered into multi-year strategic agreements with Coherent, Corning, and Lumentum to secure critical capacity in optical sources, optical devices, and silicon photonics.

Broader sector enthusiasm was ignited by Nvidia CEO Jensen Huang's high praise for Marvell Technology, a maker of optical components, which he suggested could become a $1 trillion company. Analysts indicate this signals that optical content per AI data-center rack is inflecting higher and the transition to co-packaged optics is a near-term reality. The rally is also supported by strong earnings from Hewlett Packard Enterprise and Dell Technologies, affirming "rocketing" demand for AI infrastructure, of which optical components are a critical building block.