Coherent Corp reports strong AI optics and laser backlog as infrastructure demand for optical interconnect accelerates beyond electrical limits.

Coherent is back in focus after fresh data on its exposure to AI infrastructure, including a 41% jump in its datacenter segment and a record backlog of orders stretching through 2028.

Coherent's shares currently trade at US$324.50. Despite a recent pullback, with the 1 month share price return down 15.72% and the 7 day return down 2.66%, momentum over longer periods has been strong. A year to date share price return of 66.98% and a 1 year total shareholder return of 247.80% point to investors reassessing both growth potential and risk as AI infrastructure orders and margin trends develop.

After a sharp run that has cooled in recent weeks, Coherent now trades below the average analyst target. Internal fair value work suggests only a small premium, raising the question: is the market being cautious or simply realistic about the AI story?

With Coherent at $324.50 against a widely followed fair value estimate of $384.45, the current gap reflects a narrative built on AI optics demand, capacity expansion, and long term earnings ambitions under an 8.94% discount rate.

The ongoing expansion of AI datacenter infrastructure and high-performance computing is propelling structural growth in demand for advanced optical transceivers (800G, 1.6T, and beyond), optical circuit switches, and related photonics components, which is fueling robust sequential order growth and sustained revenue momentum in Coherent's datacom and communications business. Major investments in internal manufacturing, particularly the world's first 6-inch indium phosphide production line in Texas, are providing scale and cost structure advantages, as well as improved supply chain resiliency, enabling Coherent to boost volumes, lower production costs, and expand gross margins.

The fair value assessment of $384.45 suggests the stock is undervalued. However, this narrative still hinges on timely AI optics adoption and smooth indium phosphide expansion. Delays or tighter competition could quickly challenge those assumptions.

While the popular narrative points to Coherent trading about 15.6% below fair value of $384.45 based on future earnings and growth assumptions, the current P/S ratio of 9.6x tells a tougher story. It sits well above the US Electronic industry at 2.9x and above peers at 6x, even though it is below an estimated fair ratio of 11.8x that the market could move toward over time. For investors, that gap suggests valuation risk if expectations cool before fundamentals catch up.