Marvell Technology is in advanced talks to acquire Lumentum Holdings, Bloomberg reported on 28 October 2026, in a transaction that would join a chip designer with a supplier of lasers used in artificial intelligence data centers. A Marvell Lumentum deal could be announced as soon as next week, according to people familiar with the discussions cited by Bloomberg, although the companies have not reached a final agreement and terms could still change.
The Marvell Lumentum deal report moved shares at once: Lumentum shares rose more than 10% in extended trading, while Marvell shares fell about 8%, according to reports on the session. The split reaction is common when a buyer is reported to be paying a high price: the target rises toward the expected offer value, and the buyer falls on concern about cost, financing and execution. Lumentum had a market value of about $83 billion, compared with Marvell’s market value of about $221 billion, Bloomberg reported.
Marvell Lumentum deal and the optics bottleneck
A Marvell Lumentum deal would give Marvell direct ownership of optical technology it now buys from outside suppliers. Marvell designs custom AI chips and networking hardware that connect servers and AI systems, and its digital signal processors work alongside lasers and transceivers in optical links. Owning both sides of that link would let Marvell sell a more complete networking package to data center customers, and it would reduce its dependence on suppliers for a part that is in short supply.
Coherent, an independent optical supplier backed by a $2 billion investment from Nvidia, also gained after the report, as investors reasoned that a Marvell deal for Lumentum could push customers toward other suppliers.
Nvidia is both a customer of Lumentum and a shareholder, after investing $2 billion in Lumentum preferred stock in March 2026. That link adds a further layer to the talks, because Nvidia sells graphics processors that sit at each end of the optical links Lumentum supplies, and Marvell competes with Nvidia in custom silicon for large customers. Neither company commented on the Marvell Lumentum deal when asked, according to coverage of the Bloomberg story.
Marvell Lumentum deal terms still unknown
A Marvell Lumentum deal has no confirmed price, payment structure or closing date in public reporting so far. Bloomberg’s sources did not put those details on the record, and reports stressed that talks could still break down or change. At current market values, a deal near Lumentum’s $83 billion valuation would rank among the largest semiconductor transactions of the year and would require a large financing package, likely a mix of cash, debt and stock.
Marvell faces funding and valuation pressure from a Marvell Lumentum deal if it closes, according to market coverage of the talks. Paying a high multiple for a supplier at a strong point in the cycle would weigh on near-term earnings per share until the combined business grows into the price. Investors also weigh regulatory review, since a combination of a large chip designer and a large optics supplier would draw scrutiny from competition authorities in the United States and other markets where both companies sell.
Marvell already owns photonics technology from its December 2025 agreement to buy Celestial AI for $3.25 billion in cash and stock, rising to $5.5 billion if revenue milestones are met. A Lumentum purchase would be far larger and would add manufacturing scale and a product line already shipping in volume.
Marvell Lumentum deal: what happens if talks fail
If talks fail, Lumentum would remain an independent supplier selling to Marvell, Nvidia and other customers, and Marvell would keep buying lasers from outside firms. Lumentum shares could give back part of their after-hours gain, as takeover premiums often fade when a deal collapses. Marvell shares could recover part of their fall for the same reason, since the financing and integration risk would leave with the deal.
Investors watching the Marvell Lumentum deal will watch for an announcement next week, for any filing that sets out price and structure, and for statements from either company. Until then, the talks remain a report based on unnamed sources, and the share moves reflect expectations rather than a signed agreement. The next confirmed step would be a joint announcement or a regulatory filing from Marvell or Lumentum.
Other semiconductor shares rose as well. Advanced Micro Devices added 1.8% in premarket trading on 28 October, Nvidia gained 0.8% and Marvell Technology advanced 2.3%, according to reports on the session. In South Korea, SK Hynix’s results helped lift the Kospi index more than 6%, according to Yonhap.