Optical-networking stocks are catching a bid in midday trading on Wednesday, with the group rallying together as the AI infrastructure trade reasserts itself. Applied Optoelectronics (NASDAQ:AAOI) stock is leading the pack, up 7% to $174, while Lumentum (NASDAQ:LITE | LITE Price Prediction) shares are up 5% to $859 and Coherent (NYSE:COHR) stock is trading 2% higher near $363.
The move comes after a choppy stretch for the group. All three names had pulled back sharply over the prior several sessions before today’s bounce, so investors are watching whether buyers can defend recent levels.
What’s striking is the underlying trend behind today’s intraday gains. AAOI is up 416% year to date, while LITE has gained 139% year to date and COHR has climbed 101% year to date.
AI Data-Center Demand Powers the Optics Trade
The catalyst is thematic rather than company-specific. As AI clusters scale, optical interconnects and high-speed transceivers become critical infrastructure for moving massive amounts of data between AI chips and across data centers. That has turned this group into one of the most leveraged ways to play hyperscaler capex.
Applied Optoelectronics is squarely in the middle of that story. The company posted Q1 2026 revenue of $151.14 million, up 51% year over year, with the datacenter segment more than doubling to $81.4 million on its first volume shipment of 800G transceivers to a large hyperscale customer. CEO Thompson Lin pointed to “strong customer engagement around our 800G transceivers and 1.6 Tb products, particularly as AI-driven datacenter investments accelerate.”
Lumentum’s setup looks similar. The company reported Q3 FY2026 revenue of $808.4 million, up 90% year over year, with co-packaged optics and optical circuit switch backlog already topping $400 million. CEO Michael Hurlston said, “Lumentum delivered an exceptional third quarter, with revenue growing 90% year over year to a record $808 million.”
NVIDIA Halo Lifts Coherent
Coherent rounds out the trade, and it now sits at the intersection of the photonics buildout and the NVIDIA (NASDAQ:NVDA) ecosystem. The company posted Q3 FY2026 revenue of $1.81 billion, up 21% year over year, with the Datacenter & Communications segment up 41% to $1.36 billion, now 75% of revenue.
The bigger story is strategic. NVIDIA invested $2 billion in Coherent, deepening a partnership on laser and optical networking products. CEO Jim Anderson framed it confidently, declaring, “As AI datacenter infrastructure continues to scale, we are rapidly expanding capacity to meet demand.”
The Group Trades as One
Today’s tape underscores how tightly correlated this basket has become. When sentiment around hyperscaler spending firms up, the optics names tend to move together, and when it softens, the pullbacks are equally sharp. Today’s intraday moves illustrate just how leveraged these stocks are to the AI capex cycle.
The valuation backdrop reflects that enthusiasm. Coherent trades at a forward P/E ratio of 51x, with an analyst target price of $380.62 and a beta of 2.05. That kind of multiple leaves little room for execution stumbles.
What to Watch Into the Close
The first read is whether today’s gains hold into the close, or whether the group fades again the way it did earlier this month. Trading volumes and the behavior of the broader semiconductor complex into the bell should tell the story.
Beyond today, the next anticipated catalysts are hyperscaler capex updates and any incremental NVIDIA-related news flow tied to next-generation networking. Earnings from Applied Optoelectronics, Lumentum, and Coherent will then sharpen the picture on 800G ramp velocity, co-packaged optics adoption, and capacity expansion timelines.
These remain high-beta, momentum-driven names, and investors sizing their positions should remember that big up days can both follow and precede sharp pullbacks. The AI optics thesis is intact, but the path is rarely a straight line.
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