Marvell Nears a Deal for Lumentum: an $83 Billion Bet That the AI Bottleneck Is Now Light

Marvell Technology is in advanced talks to acquire Lumentum, the optical components supplier whose lasers move data inside AI data centers, according to a Bloomberg report citing people familiar with the matter. No final agreement has been reached, and the timing could still change, but an announcement could come as soon as next week. The market reacted immediately: Lumentum jumped 11 to 13 percent in after-hours trading, at one point reaching $1,040, while Marvell fell about 9 percent to $228.31.

Lumentum closed Wednesday at $913.95, up 5.5 percent on the day, valuing the San Jose company at roughly $83 billion — nearly 28 times its trailing-twelve-month revenue of about $3 billion. The stock has almost tripled since January as investors piled into anything that carries data with photons instead of electrons. Marvell, which makes custom AI silicon, closed at $251.65, up 3.3 percent, and has also nearly tripled year to date, giving it a market value around $221 billion.

The logic is vertical integration at the photonic layer. Lumentum makes semiconductor laser chips, optical transceivers, optical circuit switches and wavelength management systems — the hardware that shuttles the enormous datasets AI clusters generate between racks, rows and buildings. Marvell already buys lasers from Lumentum; owning the supplier would let the chip designer control a critical input just as AI data centers migrate from copper to optical interconnects.

Nvidia's positioning underlines how strategic the asset has become. Earlier this year the GPU giant announced multiyear, nonexclusive agreements with Lumentum and rival Coherent worth billions of dollars for advanced laser systems, and invested $2 billion in each company. A Marvell takeover of Lumentum would put one of Nvidia's two optics partners inside a competing silicon vendor's walls.

The price reflects both scarcity and risk. Lumentum reported a net loss over the trailing twelve months, so the $83 billion valuation rests almost entirely on future AI-driven demand; its capacity is understood to be sold out for some optical products well into 2029. That leaves little margin for error if hyperscaler spending pauses, and any deal would face scrutiny over the customer concentration that defines the AI hardware market.

Still, the direction of travel is clear. AI infrastructure deals are getting larger and moving upstream from GPUs to the components around them — memory, power, cooling and now light itself. If the talks conclude, a Marvell-Lumentum combination would rank among the largest semiconductor deals ever attempted, and the first mega-merger of the photonic era. Both companies declined to comment; the next milestone is Lumentum's November 5 earnings call.