Marvell Agrees to Buy Lumentum in an All-Stock Deal Valued at About $115 Billion

Marvell Technology on November 2, 2026 agreed to acquire Lumentum Holdings in an all-stock deal that gives Lumentum an implied enterprise value of $115 billion. Lumentum shareholders will receive 4.5 Marvell shares for each Lumentum share, about $1,132 per share and a 23.9% premium based on October 28 closing prices, the companies said in their joint announcement.

The AI deal rests on a single thesis: AI data centers are running into the limits of copper wiring and moving to optical links. Marvell designs the chips that drive data center connections, while Lumentum makes the lasers and optical parts that turn those signals into light. Bloomberg first reported advanced talks on October 28, 2026, valuing Lumentum at about $83 billion at the time (Bloomberg via 24/7 Wall St.).

What are the terms of the Marvell and Lumentum deal?

Marvell will pay for Lumentum entirely in its own stock, at a fixed ratio of 4.5 Marvell shares per Lumentum share, under a definitive agreement both boards approved unanimously, the companies said on November 2, 2026. After closing, current Marvell shareholders will own about 67% of the combined company on a fully diluted basis and Lumentum shareholders about 33%.

Matt Murphy will remain chairman and CEO. Three Lumentum directors, including Lumentum CEO Michael Hurlston, will join Marvell's board, which has seven members today. The companies expect to close in the first half of calendar 2028, subject to approval by both sets of shareholders, regulatory approvals and other customary conditions.

The companies say the deal should lift long-term revenue growth and non-GAAP margins, provide "line of sight" to more than $1 billion in annual run-rate cost synergies, and add to Marvell's non-GAAP earnings per share in the first year after closing. They also say it expands the combined company's total addressable market to $550 billion. All of these are company projections.

Why do the headline numbers differ?

The $115 billion figure is the companies' own number: an implied enterprise value for Lumentum, calculated from both companies' closing share prices on October 28, 2026, the last trading day before reports of talks moved the stocks. The Information, the Financial Times, Bloomberg and The New York Times used $115 billion in their headlines, while The Wall Street Journal's headline put the deal at $80 billion; the basis for the Journal's figure is not given in its public headline.

Because the ratio is fixed, the value Lumentum shareholders receive moves with Marvell's stock price until closing. The announced $1,132 per share works out to 4.5 times about $251.56, which matches Marvell's October 28 close of $251.65 reported by 24/7 Wall St., by this site's arithmetic. Marvell shares then fell 12% on October 29 after the talks were reported, according to TIKR, which noted that Lumentum traded at 42 times forward earnings before any premium.

Why does Marvell want a laser maker?

Marvell says AI clusters need electrical and optical parts designed together, and that buying Lumentum lets it offer pre-validated optical systems instead of separate components. Lumentum brings indium phosphide manufacturing, a compound semiconductor process used to make high-speed lasers, plus optical transceivers and optical circuit switches, which redirect light between fibers without converting it back to electricity.

The deal extends a strategy Marvell started earlier. On February 2, 2026 it completed its purchase of Celestial AI, a startup whose Photonic Fabric moves data between AI chips with light, and said it expects that business to reach a $1 billion annualized revenue run rate by the fourth quarter of fiscal 2029.

Lumentum also brings an existing tie to Nvidia. On March 2, 2026, Nvidia said it would invest $2 billion in Lumentum and signed a nonexclusive multiyear agreement that includes a multibillion purchase commitment for advanced laser components. Read together with the merger terms, that means a laser supplier Nvidia has invested in and committed to buy from would, if the deal closes, belong to a chip company that also sells custom AI silicon.

How fast is Lumentum growing?

Lumentum reported net revenue of $1.26 billion for its fiscal first quarter ended September 26, 2026, up 136.5% from $533.8 million a year earlier, in results released alongside the deal. It forecast $1.575 billion to $1.625 billion for the current quarter.

Hurlston said pump lasers and optical circuit switches led the growth, and that Lumentum secured its second major near-packaged or co-packaged optics win, backed by purchase commitments above $5 billion. Co-packaged optics place the optical engine next to the chip inside its package instead of in a separate plug-in module. At the latest quarter's pace, the $115 billion valuation equals about 23 times Lumentum's annualized revenue, by this site's arithmetic. Marvell, for its part, said its preliminary revenue for the third quarter of fiscal 2027 is consistent with its earlier guidance, keeping the midpoint and narrowing the range to plus or minus 2%.

What we don't know yet

• Which regulators must approve the deal, and whether any will require conditions or open an in-depth review.
• How Nvidia, which invested $2 billion in Lumentum in March 2026, views the combination, and whether its supply agreement is affected.
• How Marvell will reach the more than $1 billion in cost synergies, and whether jobs or facilities will be cut.
• What the deal will be worth at closing, since the fixed ratio ties its value to Marvell's share price.