Marvell Bets $115 Billion on AI Connectivity With Lumentum Deal
Photo: Hippopx (public domain).
What happened. Marvell Technology has agreed to acquire optical components maker Lumentum in an all-stock transaction with an enterprise value of $115 billion, one of the largest technology deals on record and a bet that the connections inside AI data centres matter as much as the chips themselves.
Under the terms announced on Monday 2 November 2026, each Lumentum share will convert into 4.5 Marvell shares, implying about $1,132 per Lumentum share — a premium of roughly 23.9% to Lumentum’s 28 October close, the last trading day before deal speculation surfaced. The equity value is about $80 billion; the $115 billion figure is enterprise value including debt. After closing, Marvell shareholders would own about 67% of the combined company and Lumentum holders about 33%, on a fully diluted basis. Both boards approved the deal unanimously, Marvell chairman and CEO Matt Murphy will continue to lead the company, and three Lumentum directors including CEO Michael Hurlston will join Marvell’s seven-member board.
Why connectivity. The strategic logic is about a bottleneck. AI data centres now pack thousands of accelerators that must exchange enormous volumes of data; copper connections are running into physical limits over distance and power, and the industry is shifting to optical connections that move data as light. Marvell makes custom chips and electrical connections; Lumentum makes lasers and optical components. Combined, the companies say, they can co-design the whole connectivity path — from inside advanced chip packages to links between data centres — and they put the expanded total addressable market at $550 billion. They also claim line of sight to more than $1 billion in annual run-rate cost synergies, and expect the deal to add to Marvell’s non-GAAP earnings per share in the first year after closing.
Not done yet. The deal is not done yet. It is expected to close in the first half of calendar 2028, subject to shareholder votes at both companies and regulatory approvals — a long runway in which the AI infrastructure market could change considerably. The two companies also share a notable common shareholder in Nvidia, which invested $2 billion in each earlier this year. Both companies’ shares fell on the announcement day as chip stocks sold off, a reminder that even the biggest deals are priced by the market, not by press release.
For readers, the deal is best understood as infrastructure following demand. The AI boom’s first phase was about who could build the most powerful chips. This deal argues the next constraint is moving data between them — and that owning both sides of that connection is worth $115 billion.
Sources
- Marvell press release, 2 November 2026: https://investor.marvell.com/news-events/press-releases/detail/1040/marvell-and-lumentum-to-combine-creating-a-category-leader-in-ai-connectivity
- TechCrunch — “In one of the largest deals in tech history, Marvell buys Lumentum for $115B” (2 November 2026): https://techcrunch.com/2026/11/02/in-one-of-the-largest-deals-in-tech-history-marvell-buys-lumentum-for-115b/
