Bloomberg and Reuters reported that Marvell Technology is in advanced talks to acquire the optical-components maker, which was worth about $83 billion at Wednesday's close. No agreement has been announced. Lumentum would be equal to about 38% of Marvell's market value.
A possible deal between two of the AI build-out's favorite stocks has produced an early verdict from investors: the buyer pays.
Marvell Technology is in advanced talks to buy Lumentum Holdings, Bloomberg reported on Wednesday evening, citing people familiar with the matter, and a transaction could be announced as soon as next week. Reuters separately reported the talks, citing its own source. No final agreement has been reached, and neither company commented.
The relative size
Lumentum closed Wednesday at $913.95, up 5.5%, with a market value of about $82.8 billion. Marvell closed at $251.65, up 3.3%, worth about $220.4 billion. Lumentum's value is about 38% of Marvell's, which makes this a large acquisition for the buyer even before any premium.
That scale shapes the financing question. Marvell had $3.93 billion of cash and $4.96 billion of long-term debt at the start of August, so its cash would cover less than 5% of Lumentum's market value. Analysts at Bernstein told Reuters a deal that size "would likely require additional financing and could present integration challenges." A deal near Lumentum's value would very likely involve a substantial amount of Marvell stock, though no terms have been reported.
What the overnight market said
Marvell shares traded as low as $218.75 in the first 15 minutes after the report, ended that period at $226.88 and were indicated near $226.50 early Thursday, about 10% below the close. Lumentum spiked to as high as $1,078 after hours and was indicated near $953, about 4% above the close.
On those indications, Marvell's market value is about $22 billion lower and Lumentum's about $3.5 billion higher, a combined loss of roughly $18.5 billion, by our arithmetic. Extended-hours trading is thin, and Marvell had already slipped about 2% before the report as Microsoft and Alphabet results moved AI-related stocks.
Why Marvell might want it
Lumentum makes lasers and photonic components used to move data between AI chips. Nvidia agreed in March to a multiyear, nonexclusive deal with Lumentum that included "a multibillion purchase commitment and future capacity access rights for advanced laser components," and invested $2 billion in the company. Marvell's data-center revenue grew 46% from a year earlier in its fiscal second quarter, and it recently raised its fiscal 2028 revenue forecast to $20 billion from $15 billion. A combination would put Marvell's signal-processing chips and Lumentum's light sources under one roof.
Marvell's shares had nearly tripled this year through Wednesday's close, Dow Jones reported, which gives it a valuable currency but also raises the bar for any deal to add value.
Strategic coup or overpayment?
The strategic case: Marvell would own a scarce component in AI networking, one Nvidia has already paid to secure, and the stock's drop reflects fear of dilution more than doubt about the logic.
The skeptical case: Marvell would be buying a company more than a third of its size at a peak-cycle valuation, probably paying largely in stock, with Bernstein flagging financing and integration risk. Nvidia's agreement with Lumentum is nonexclusive, and how it would treat a Marvell-owned supplier is unknown.
What to watch
A definitive agreement or a denial, the price, premium and mix of cash and stock, Nvidia's position as a customer and investor, Thursday's regular-session trading in both stocks, and Lumentum's quarterly report, expected in early November.