On September 21, Coherent rose 3.04% in pre-market trading, trading at $326.15/share, with turnover of approximately $5.34 million.

On the news front, Coherent announced new optical technologies and live demonstrations at the ECOC 2026 conference on September 20, designed to expand AI infrastructure capabilities. The showcase reinforces the company's product positioning in high-speed optical interconnects for AI data centers. This follows Coherent's recent expansion of its pluggable optical line system portfolio integrating full C-band amplification, and its earlier display of 6.4T slot-based CPO, 1.6T VCSEL NPO, and 12.8T XPO solutions at the China International Optoelectronic Expo.

At the industry level, Goldman Sachs recently raised its optical module sector outlook, projecting 800G-and-above high-end modules as the primary growth driver, with the market expected to scale from $45.2 billion to $129.5 billion between 2026 and 2028. Deutsche Bank also initiated coverage on the AI hardware sector, naming Coherent a top pick alongside Lumentum. AI data center cluster expansion continues to drive structural demand for high-speed optical modules and components.

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