Forward Future Marvell Falls Nearly 10% on Reported $83 Billion Lumentum Deal
2026-10-29
Marvell Technology shares fell nearly 10% in premarket trading on Thursday, October 29, 2026, while Lumentum Holdings shares rose, after Bloomberg reported the two companies are in advanced talks on an acquisition that could be announced as soon as next week. The talks are reported, not confirmed: no final agreement has been reached, neither company has confirmed the discussions, and both declined or did not respond to requests for comment. Lumentum was valued at about $82.79 billion at Wednesday's close, against Marvell's own market value of about $220.67 billion.
What happened
Bloomberg reported on Wednesday, October 28, citing people familiar with the matter, that Marvell is in advanced talks to buy Lumentum, a maker of lasers and optical components for data centers. A deal could be announced as soon as next week, though timing could change and talks could still fall through, according to the reports.
The market reaction was immediate and split in the usual direction for a large acquisition. Marvell closed up 3.3% at $251.65 on Wednesday and had nearly tripled in value this year, then fell 9.3% to $228.31 in after-hours trading, according to Dow Jones Newswires. By early Thursday, Marvell was down 9.7% in premarket trading. Lumentum jumped 13% to $1,040 after hours, and was up 6.0% in premarket trading on Thursday, after closing Wednesday at $913.95.
Why it's blowing up
The size alone explains the attention. At about $83 billion, Lumentum would be worth more than a third of Marvell itself, and the deal would be by far the largest in Marvell's recent buying spree. In the past year Marvell has announced the acquisitions of photonics company Celestial AI for $3.25 billion and interconnect company XConn for $540 million — both far smaller than a Lumentum deal.
The strategic logic is about AI data centers. Lumentum makes the lasers and optical parts that move data between chips and servers. As AI clusters grow, those links need to carry more data at higher speeds, and optical components have become a critical part of the build-out. Marvell already buys lasers from Lumentum, and it makes custom AI chips for major cloud companies. Buying Lumentum would give Marvell direct control over a supply it currently purchases from outside.
Why Marvell shareholders reacted badly
Investors are focused on price and payment, not strategy. Marvell had about $3.92 billion in cash and cash equivalents in its latest quarter — far below Lumentum's market value — so a deal of this size could not be paid for in cash alone. That raises the prospect of a large share issue, new debt, or both, and significant dilution for existing Marvell shareholders if the deal is paid for mostly in stock.
The final price could also be well above $83 billion. Mizuho Securities analyst Vijay Rakesh noted that large semiconductor deals over the last 15 years have carried an average premium of about 38% to the undisturbed share price, which would imply a Lumentum price of more than $1,260 a share, compared with its $913.95 close on Wednesday. Analysts have also warned about integration risk in combining two companies of this scale at a high point in the optical cycle.
Key facts
Reported status: Advanced talks, according to Bloomberg sources. No agreement has been signed and no terms have been announced.
Marvell move: Down 9.7% in premarket trading on Thursday, after a 9.3% after-hours fall to $228.31 on Wednesday.
Lumentum move: Up 13% after hours to $1,040 on Wednesday, and up 6.0% in premarket trading on Thursday.
Scale: Lumentum's market value was $82.79 billion at Wednesday's close; Marvell's was $220.67 billion.
Company responses: Marvell and Lumentum did not immediately respond to requests for comment from Reuters and Barron's.
What's next
The next step is confirmation — or denial — from the companies themselves. If Bloomberg's timeline is right, an announcement could come as soon as next week, which would reveal the price, the mix of cash and stock, and how Marvell plans to fund it. Until then, every detail beyond the existence of talks is unconfirmed. A deal of this size would also be expected to face regulatory review and close scrutiny of Nvidia's position in Lumentum, after Nvidia invested $2 billion in the company earlier this year and became both a customer and a shareholder.
For the wider market, the story landed on a morning when AI spending was already under pressure: Nasdaq futures fell about 1% on Thursday as Alphabet's earnings reignited concerns about AI costs. Marvell's fall shows that scrutiny now applies not just to building AI infrastructure, but to buying it at peak prices as well. This article reports what happened and why markets reacted; it is not investment advice.
Sources
Reuters — Nasdaq futures slide as mixed Big Tech results test AI trade, October 29, 2026
Barron's — Marvell Stock Slides. Why the Market Hates the Idea of a Lumentum Buyout
TipRanks — Marvell Stock Drops 8% as Lumentum Jumps 9% on Reported Deal Talks
FAQ
Has Marvell agreed to buy Lumentum?
No. Bloomberg reported advanced talks that could lead to an announcement as soon as next week, but no final agreement has been reached and neither company has confirmed the talks.
Why did Marvell stock fall while Lumentum stock rose?
Marvell fell nearly 10% on fears of dilution, debt and overpaying for a company worth about $83 billion, while Lumentum rose on the prospect of being bought at a premium to its market price.
What does Lumentum make?
Lumentum makes lasers and optical components that move data quickly between chips and servers inside AI data centers, a part of the AI build-out where demand has outrun supply.
How big would this deal be for Marvell?
Very big. Lumentum's $82.79 billion market value is more than a third of Marvell's $220.67 billion value, and far larger than Marvell's recent Celestial AI deal at $3.25 billion.