Coherent Corp. (COHR) shares closed Friday’s session at $329.50, up 3.1%, and edged higher to $332.00 in after-hours trading, as Wall Street braces for the company’s fiscal third-quarter earnings report due after the New York Stock Exchange closes on May 6. The results, covering the period ending March 31, will be released at 4:30 p.m. ET via webcast, with analysts zeroing in on whether the AI-driven boom in optical networking continues to fuel revenue growth.
AI Data-Center Demand in Focus
The central question for investors is whether surging demand from AI data centers can sustain Coherent’s optics sales—and whether the company can manage costs, capacity, and margins as it ramps up production. Photonics, which uses light instead of electricity to transmit data, is critical for high-speed AI networks, where optical transceivers and related hardware enable faster, more energy-efficient data transfer between servers and chips. Coherent’s December quarter revenue hit $1.69 billion, a 17% year-over-year increase, driven by a 34% jump in its datacenter and communications segment to $1.21 billion. However, industrial revenue fell 10% to $478 million, largely due to the sale of its aerospace and defense unit.
Nvidia’s Billion Commitment
A key catalyst is Nvidia’s (NVDA) $2 billion purchase commitment to Coherent, announced in March, which also included a similar deal with Lumentum. The agreement secures access to Coherent’s advanced laser and optical networking gear, tightening the company’s link to the AI hardware supply chain. But investors now want to see actual shipped revenue, not just backlog growth, and evidence that new manufacturing capacity can be ramped without squeezing margins.
Analyst Optimism and Risks
Rothschild Redburn initiated coverage on Coherent on May 1 with a Buy rating and a $455 price target, citing strong demand for optical transceivers, co-packaged optics, and optical circuit switches. Co-packaged optics bring optical links closer to chips, while optical circuit switches manage light signal routing. However, the firm flagged risks: Coherent’s broader strategy could intensify competition, and its optical-switch revenue may lag behind Lumentum’s. Analysts currently expect non-GAAP earnings of $1.40 per share for the quarter, up from $1.29 in the prior period.
Cash Flow Concerns
Cash flow remains a concern. Operating cash flow for the six months through Dec. 31 slid to $104 million from $340 million a year earlier, as rising inventories and receivables outpaced revenue growth. Capital expenditures on property, plant, and equipment rose to $258 million. This leaves little room for error in guidance. A strong report could reinforce the AI optics growth narrative, but any slip—whether in headline numbers or management’s commentary on customer schedules—could shift focus to valuation, capital outlays, and how much Nvidia-driven demand is already priced in.



