As of about 12:45 PM IST, Tuesday 3 November 2026. Figures are attributed to the sources that published them; anything not independently confirmed is flagged.
Marvell Technology has agreed to buy optical-components maker Lumentum in an all-stock deal that gives Lumentum an implied enterprise value of about $115 billion, the companies announced on Monday 2 November. CNBC described it as one of the biggest deals of 2026 and among the boldest corporate bets yet on the AI infrastructure boom. Investors were not convinced on day one: Marvell shares fell about 13% and Lumentum about 18% to 19%.
The terms
- Exchange ratio: Lumentum shareholders will receive 4.5 Marvell shares for each Lumentum share. There is no cash component.
- Value: the companies put the implied value at about $1,132 per Lumentum share, a premium of about 23.9% to the unaffected closing price on 28 October, the last trading day before reports of talks. Because the ratio is fixed, the actual value moves with Marvell's share price.
- Ownership: Marvell holders would own about 67% of the combined company and Lumentum holders about 33%.
- Timing: closing is expected in the first half of calendar 2028, subject to shareholder and regulatory approvals.
- Company targets: Marvell says it sees a path to more than $1 billion in annual run-rate cost savings, a total addressable market of $550 billion, and that the deal should add to its adjusted earnings per share in the first year after closing. These are company projections.
Why Marvell wants Lumentum
AI data centers increasingly use optical links to connect thousands of chips. Marvell makes custom chips and electrical interconnect; Lumentum makes lasers and optical components. "You need scale-up technology that needs semiconductors and optical working seamlessly together," Marvell CEO Matt Murphy told CNBC, adding that demand was "exploding". Lumentum CEO Michael Hurlston called the opportunity "enormous". CNBC framed the deal as Marvell stepping up its challenge to larger rival Broadcom.
Nvidia invested $2 billion each in Marvell and Lumentum earlier this year, according to CNBC. Murphy rejected concerns about circular dealmaking and called the merger "a double down on supporting Nvidia".
Market reaction
Both shares have fallen since talks were first reported in late October, amid a broader chip-stock selloff. CNBC noted that, before Monday, Marvell had more than doubled over the past year and Lumentum had roughly quadrupled. Alongside the deal, Marvell said its preliminary fiscal third-quarter revenue was in line with guidance, and narrowed the range to plus or minus 2%.
What to watch
- Antitrust reviews in the US, Europe and China, which typically take time for a deal of this size.
- Whether the share-price slide changes the effective value of the offer or draws shareholder pushback.
- Nvidia's results later this month as a read on AI infrastructure demand.
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