Understand How Coherent and Lumentum Bypass an AI Bottleneck With Optics

AI clusters person a wiring problem. Copper cables cannot determination capable information betwixt GPU racks, truthful the manufacture is switching to light. That displacement is wherefore Coherent (NYSE:COHR) and Lumentum (NASDAQ:LITE) conscionable posted the benignant of quarters optical suppliers seldom see. Coherent reported Q4 FY2026 connected August 12, 2026, and Lumentum reported a time earlier. Both beat. Their paths diverged.

One Owns the Module. The Other Owns the Laser Inside It.

Coherent booked $2.045 cardinal successful revenue, up 33.7% twelvemonth implicit year, with the Datacenter & Communications conception producing $1.615 billion, oregon 79% of sales, increasing 59% connected a pro forma basis. Non-GAAP EPS came successful astatine $1.74, a 7.60% beat. CEO Jim Anderson framed the setup plainly: "As AI datacenter architectures progressively modulation from copper to optical connectivity, we judge Coherent's wide photonic exertion portfolio and manufacturing standard uniquely presumption america to present accelerating growth." Translation: ain the full module stack, from indium phosphide wafers up.

Lumentum went the different direction. Revenue deed $1.006 billion, up 109.3% twelvemonth implicit year, non-GAAP gross borderline reached 50.4%, a 1,260 ground constituent jump, and operating borderline expanded 2,160 ground points to 36.6%. CEO Michael Hurlston said the institution is "reaching our people exemplary much than a 4th up of schedule." That is the "pick and shovel" laser motor playing retired successful existent time.

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Full Stack vs. Rare Ingredient