Marvell agrees to buy Lumentum in an all-stock deal valuing the laser maker at $115 billion
Marvell Technology (NASDAQ: MRVL) and Lumentum (NASDAQ: LITE) announced on Monday, Nov. 2, 2026, a definitive agreement for Marvell to acquire Lumentum in an all-stock transaction approved unanimously by both boards.
The AI build-out has mostly been a story about GPUs; this is a bet that the next bottleneck is the wiring between them, and that whoever owns both the chips and the lasers gets to set the standard. It is also a very 2026 deal: a $115 billion price paid entirely in stock that has itself been inflated by the AI boom, with about a year and a half of regulatory waiting before anyone finds out whether it happens.
Marvell Technology will acquire Lumentum in an all-stock deal. All-stock means Lumentum holders are paid in Marvell shares, not cash. Each Lumentum share would be exchanged for a fixed 4.500 shares of Marvell common stock. Both boards approved the agreement unanimously. Those terms are the companies'. Closing has not happened.
The companies say the deal implies an enterprise value of $115 billion for Lumentum, about $1,132 per Lumentum share. Enterprise value is a price for the whole business, not just the stock. That price is a premium of about 23.9% to each company's unaffected closing price on Oct. 28, 2026, the last trading day before market speculation about a deal began. A premium is how much more this is than that earlier price. Those figures are the companies'.
After closing, current Marvell stockholders would own about 67% of the combined company and Lumentum stockholders about 33%, fully diluted. Fully diluted counts options and other shares that can still be created. The investor presentation puts the combined enterprise value at over about $275 billion, based on Oct. 30, 2026 prices. Those splits and that figure are the companies'.
The pitch is about the wiring, not the graphics chips. AI clusters are pushing so much data that copper links are hitting physical limits, so connectivity is moving to optics. Optics means the data travels as light. Marvell brings electrical and optical interconnect, network switching, and custom AI chips, which it calls XPUs. An interconnect is the link between machines. A custom chip, here, is one built for a particular AI job rather than a general graphics processor. Lumentum brings high-performance lasers, optical transceivers, optical circuit switching, and compound-semiconductor manufacturing, including indium phosphide. A transceiver sends and receives the light. Optical circuit switching steers that light instead of pushing an electrical signal. Indium phosphide is a material used to make the lasers. Those lines are the companies'.
The companies say the combination expands their total addressable market to $550 billion. A total addressable market is the sales they say they could chase, not sales they have booked. They say they have line of sight to more than $1 billion in annual run-rate cost synergies, primarily cost of goods sold, per the presentation. A run-rate synergy is a yearly pace of costs they expect to take out. Cost of goods sold is what the products cost to make. They expect the deal to add to Marvell's non-GAAP earnings per share in the first year after closing. Non-GAAP earnings per share is profit per share after the company leaves out items it treats as outside the ordinary comparison. Those lines are the companies'. They are expectations, not results.
Matt Murphy will remain chairman and chief executive of the combined company. Three Lumentum directors, including Lumentum president and chief executive Michael Hurlston, will join Marvell's board, which currently has seven directors. Those lines are the companies'.
The companies expect to close in the first half of calendar 2028. Closing still needs approval by both companies' stockholders, regulatory approvals, and other customary conditions. Those conditions are ahead of the close. Those lines are the companies'.
Matt Murphy said: "AI infrastructure is undergoing a fundamental architectural shift toward optical connectivity, creating an opportunity that comes along once in a generation." Michael Hurlston said: "Surging AI data traffic requires rapid hardware innovation, and this combination enhances our ability to deliver next-generation solutions at scale." Those quotations are theirs.
Marvell also said its preliminary fiscal third-quarter 2027 revenue is consistent with prior guidance. It is keeping the midpoint and narrowing the range to plus or minus 2%. The midpoint is the middle of the earlier forecast. A narrower range means the company is pointing at a tighter band around that same middle. The announcement also says Lumentum separately reported fiscal first-quarter 2027 results. Those lines are the companies'.
The picture is the companies' investor-presentation slide titled Transaction summary. It shows an all-stock deal, 4.500 Marvell shares per Lumentum share, about 67% Marvell and 33% Lumentum ownership, more than $1 billion of run-rate synergies, Matt Murphy remaining chief executive and chairman, and an expected close in the first half of 2028. The credit is Marvell Technology investor presentation (SEC Form 8-K, Exhibit 99.2).
In plain terms, Marvell agreed on Monday to buy Lumentum with stock, 4.500 Marvell shares for each Lumentum share. The companies put the implied enterprise value at $115 billion, about $1,132 a share, about 23.9% above the Oct. 28 close. Marvell holders would keep about two-thirds of the combined company. The close is aimed at the first half of 2028, and it still needs both companies' stockholders and regulatory approvals. The same announcement says Marvell's latest quarter is tracking the middle of its earlier revenue forecast, in a tighter range.