Marvell and Lumentum Fell Hard. Their Supplier’s Stock Is Soaring
When Marvell announced a blockbuster acquisition and both stocks tanked, one overlooked supplier quietly posted the best quarter in its history after hours. The question now is whether that record run can survive the deal's fallout.
On November 2, 2026, Marvell Technology (NASDAQ:MRVL | MRVL Price Prediction) agreed to buy Lumentum (NASDAQ:LITE) in an all-stock deal. In that one session, shares of both the buyer and the target fell sharply. Marvell fell 12.72% to $171.41, and Lumentum dropped 18.59% to $684.40.
After the close, Fabrinet (NYSE:FN), a contract manufacturer that counts both companies as customers, reported the best quarter in its history and rose in after-hours trading. Fabrinet describes its business as “advanced optical packaging and precision optical, electro-mechanical and electronic manufacturing services.” Put simply, it makes products that other companies design and sell.
For shareholders of these stocks, the split matters. Marvell and Lumentum holders now face deal uncertainty until closing. Fabrinet’s results show more directly how much optical hardware AI data centers are ordering. Even so, Fabrinet is still 57.8% below its record close, and its margins are thin.
Deal Terms Reveal a Skeptical Market
Each Lumentum share changes into a fixed 4.5 Marvell shares. Based on October 28 closing prices, that implies an enterprise value of $115 billion, $1,132 per Lumentum share and a 23.9% premium.
Marvell holders would own about 67% of the combined company and Lumentum holders about 33%. Closing is expected in the first half of calendar 2028.
At the November 2 close, 4.5 Marvell shares were worth $771.35, yet Lumentum finished 11.3% below that figure. A gap that wide suggests traders doubt the deal will close on these terms.
Ciena (NYSE:CIEN) fell 11.34%, and Coherent (NYSE:COHR) fell 4.93% during a wider AI selloff. The deal alone likely explains only part of the drop.
Fabrinet Posts a Record Quarter
Revenue for the quarter ended September 25 reached a record $1,474.5 million, up 51%. Non-GAAP EPS rose to $4.34 from $2.92, beating the $4.19 consensus.
Data center revenue grew 78% to $777 million, or 53% of sales. For the December quarter, the company guided revenue of $1.6 billion to $1.65 billion.
Chairman and CEO Seamus Grady was upbeat. He said, “Fiscal year 2027 is off to an excellent start with record revenue.”
In the regular session, the stock closed down 3.85% at $314.70. After hours, it traded at $350.59 and then at $347.50 at 7:59 p.m. ET. Those are after-hours prices only, and they can change by the open.
Why Consolidation Brings Benefits and Risks for Fabrinet
Grady said “both companies are customers of Fabrinet,” but he called the deal “late-breaking news for all of us.”
In his view, past consolidation, such as Nokia’s purchase of Infinera, “has tended to benefit Fabrinet.” Nothing disclosed so far commits the combined company to sending Fabrinet more work.
Neither company was among the customers above 10% of fiscal 2026 revenue. A larger combined buyer could also push Fabrinet harder on price.
Grady projects revenue capacity of $10 billion by early January, up from $5.8 billion. He raised the long-term target to $16 billion from $14 billion.
The cost shows up in non-GAAP free cash flow of negative $137.4 million and a non-GAAP gross margin of 12.1%. With margins that thin, profit depends on volume, and Fabrinet has little room to raise prices.
What Fabrinet’s Record Quarter Means for Investors
The beat, the December-quarter guidance, and the capacity make all point to growing demand, and the gap to the $746.47 record close leaves room to recover. Fabrinet is one of the picks-and-shovels names behind the AI data center expansion, the same category we profiled in a free report on seven AI infrastructure stocks that aren’t chipmakers. Thin margins, negative free cash flow, and reliance on a few large customers are the main risks to that view. Marvell and Lumentum holders carry deal uncertainty until closing, while Fabrinet’s results tie more directly to optical demand.
The first test is whether Fabrinet holds above $314.70 after the open. Coherent reports on November 4, and Lumentum reports after the close on Thursday, November 5.
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Omor Ibne Ehsan is a writer at 24/7 Wall St. He is a self-taught investor with a focus on growth, cyclical, and dividend equities that have strong fundamentals, value, and long-term potential. He also has an interest in high-risk, high-reward investments such as penny stocks.
