AI Infrastructure Boom Fuels Stock Surge for Optical Networking Leaders Coherent and Lumentum

Invezz USA

Overview

Driven by the escalating demand for AI infrastructure, optical networking companies like Coherent and Lumentum Holdings have experienced significant stock gains in 2026. Bank of America predicts Coherent to capture 20-30% of the global transceiver market, benefiting most from rising 800G/1.6T transceiver sales, and has raised its price target. Coherent’s manufacturing advantage on 6-inch substrates positions it to meet demand across multiple platforms, including silicon photonics (SiPho) and electro-absorption modulated lasers (EML).

In Depth

AI Demand Energizes Optical Networking Market

The rapid build-out of AI data center infrastructure is providing a substantial tailwind for the optical communications and photonics industry. Key players like Coherent and Lumentum Holdings, suppliers of indispensable optical transceivers for high-speed, high-capacity data transfer within data centers, have seen their stock prices surge notably in 2026. This trend suggests that investors are increasingly recognizing the strategic importance of optical networking within the broader AI ecosystem.

Coherent’s Market Leadership and Competitive Edge

Analysts at Bank of America project that Coherent will command a significant 20% to 30% share of the global optical transceiver market. The company is identified as one of the primary beneficiaries from the growing sales of next-generation 800G and 1.6T transceivers, leading to an upward revision of its price target. A core strength for Coherent lies in its manufacturing prowess, particularly its advantage in producing on 6-inch substrates. This capability allows the company to efficiently address demand across diverse technology platforms, including silicon photonics (SiPho) and electro-absorption modulated lasers (EML), potentially leading to further market share gains.

Advancements in Production Technology and Profitability

Coherent has also reported the initial shipments of transceiver products from its 6-inch manufacturing facility, a development expected to enhance manufacturing efficiency and improve gross margins. The burgeoning demand for high-speed transceivers, such as 800G and 1.6T, is a powerful driver for the evolution of optical device manufacturing technologies like silicon photonics and EML. In an environment of rapidly increasing industry demand, consistent component supply and sustained investment in next-generation technologies will remain critical factors determining corporate growth.