U.S. IC design company Marvell announced it will acquire optical communications company Lumentum in an all-stock transaction. According to a joint announcement issued by the two companies on November 2 U.S. time, the two companies have signed a definitive merger agreement, with a transaction enterprise value of about $115 billion and an equity value of about $102.5 billion, expected to close in the first half of 2028, subject to shareholder and regulatory approvals.
Share Exchange Terms and Transaction Structure
Under the transaction terms, each share of Lumentum common stock will be exchanged for 4.5 shares of Marvell common stock, implying a purchase price of about $1,132 per share, a 23.9% premium to the unaffected closing price on October 28. Upon completion, existing Marvell shareholders are expected to hold about 67% of the combined company, with Lumentum shareholders holding about 33%. The two companies estimate the combined company’s addressable market will expand to $550 billion, with potential annual cost synergies of over $1 billion, though such benefits remain company estimates.
Strengthening Optoelectronic Integration for AI Data Centers
The core of the acquisition is the integration of Marvell’s high-speed chips, electrical interconnect and customized chip technologies with Lumentum’s high-performance lasers, optical transceiver modules and optical switching technologies. As AI model training and inference scale continues to expand, large numbers of GPUs, switches and servers in data centers need high-speed data exchange, while conventional copper wiring is increasingly constrained in transmission distance, signal loss and power consumption, making optical communications an important direction. Marvell said that by integrating the technologies of both sides, it can further develop integrated electrical and optical signal designs, improving data transmission bandwidth, performance and energy efficiency, and help accelerate development of next-generation AI data center interconnect products.
Focus on Taiwan Optical Communications Supply Chain
The transaction has also drawn attention to Taiwan’s optical communications supply chain. Taiwan companies under observation by institutional investors and the industry include Xunxin-KY (6451), Dingyuan (2426), Lianya (3081), Huaxingguang (4979) and Wenmao (3105), covering optoelectronic packaging, lasers and photodetector components. Among them, Xunxin-KY can be watched for optoelectronic packaging and integration, Dingyuan involves photodetector components, while Lianya, Huaxingguang and Wenmao can be tracked for progress in epitaxy, lasers and optoelectronic components, and Taiwan manufacturers also have related layouts in fiber-optic connections, optical coupling and high-speed optical transceiver modules. TrendForce has noted that Taiwan manufacturers such as Lianjun Photonics and Huaxingguang have invested in capacity expansion and technology development, with 2026 to 2027 set to be an important phase for Taiwan manufacturers to seek design-ins in the 1.6T optical communications supply chain. However, an international merger does not mean Taiwan manufacturers will directly secure orders, and the actual benefit will still depend on customer qualifications, supply-chain division of labor, mass-production progress and revenue contribution. For Taiwan’s technology industry, the focus of this deal is not only the acquisition value, but that competition in global AI data centers is extending from chip computing power to high-speed interconnects, optoelectronic integration and energy efficiency, and whether Taiwan manufacturers can capture key components and technology integration opportunities will be an important indicator in the next phase.