November 2, 2026, (Inside AI) — Marvell Technology has agreed to acquire optical components maker Lumentum in an all-stock deal valued at $115 billion, including debt. The transaction, announced Monday, ranks among the largest technology mergers of 2026 and represents a direct challenge to Broadcom in the market for AI data-center hardware.
Marvell will pay $1,132 per Lumentum share, a 23.9% premium over Lumentum's unaffected closing price on October 28. The equity value of the deal stands at $102.54 billion. Marvell shares rose 2.8% in premarket trading, while Lumentum trading was halted.
The acquisition gives Marvell control of a key supplier of optical components that move data at high speeds inside AI data centers. Marvell executives expect demand for these components to outstrip supply for years, as hyperscalers build ever-larger clusters of AI chips that require faster and denser optical interconnects.
Marvell's market value has surged past $170 billion in just three years, driven by its role in helping Amazon and other tech giants design custom AI chips and networking gear. The company's annual revenue has more than doubled from $3 billion in fiscal 2021 to $8.2 billion in fiscal 2026.
Read: Foxconn Chief Downplays AI Bubble Concerns, Sees Strong 2027 Growth
The deal expands the combined company's total addressable market to $550 billion, according to Marvell. It is Marvell's largest purchase since its $10 billion buyout of Inphi in 2021.
Nvidia invested $2 billion each in Marvell and Lumentum earlier this year, a signal of how deeply the AI chip giant is intertwined with the supply chain it depends on.
Why Marvell Needs Lumentum's Optical Technology
The strategic logic centers on the physical limits of AI computing. As data centers pack thousands of chips into a single cluster, copper wiring becomes a bottleneck for speed and power efficiency. Optical links, which transmit data using light, offer higher bandwidth and lower energy consumption over distance.
Lumentum makes the lasers and photonic components that power these links. By owning that technology, Marvell can offer customers a more complete package of custom chips, networking silicon, and optical interconnects, matching Broadcom's strategy of selling a broad menu of AI data-center hardware under one roof.
Marvell has already been building its photonics business. It closed a $3.5 billion purchase of Celestial AI in February, a deal aimed at accelerating optical connectivity for AI systems. The Lumentum acquisition extends that bet significantly.
The timing also reflects a potential regulatory tailwind. A proposed US ban on new Chinese optical transceivers could shift demand toward domestic suppliers. Lumentum, which competes with US-listed Coherent and China's Zhongji Innolight, stands to benefit if such a ban takes effect.
Read: Nvidia, Broadcom Shielded as AI Power Crunch Hits Chip Supply Chain, Says Morgan Stanley
Since reports of the Marvell-Lumentum talks emerged late last month, Lumentum shares have fallen about 8% and Marvell about 22%, amid a broad chip selloff that accelerated after Intel issued a weak forecast.
Marvell's shares hit a record high in June after Nvidia CEO Jensen Huang called the custom chipmaker the next "trillion-dollar company."
"Marvell is buying Lumentum in a $115 billion all-stock deal, including debt, as the custom chipmaker steps up its challenge to larger rival Broadcom during an AI spending boom," according to sources familiar with the transaction.
The competitive pressure with Broadcom is real. Broadcom has long been Google's main custom-chip partner and offers a wider portfolio of AI data-center hardware. Marvell notched a significant win in August, signing a deal to supply chips that sit alongside Google's AI processors, worth up to $120 billion in sales through fiscal 2033. Google also received the right to buy a $12.2 billion stake in Marvell.
That Google agreement demonstrates Marvell's growing importance in the custom silicon market. But it also highlights the scale of Broadcom's lead. Broadcom's AI revenue has grown rapidly, and the company has secured multiple hyperscaler customers for its custom chips and networking products.
The Lumentum deal is a bet that owning optical technology will help Marvell differentiate. If AI clusters continue to grow in size and complexity, the demand for high-speed optical connections should rise accordingly. Marvell is positioning itself to capture that demand rather than cede it to component suppliers.
The acquisition also carries integration risk. Lumentum is roughly half Marvell's size, and merging two hardware companies with different product lines and customer relationships requires careful execution. Marvell's previous acquisitions, including Inphi and Celestial AI, provide some experience, but the scale here is larger.
Investors have shown skepticism. The drop in both stocks since the talks were reported suggests concerns about the price and the near-term impact on Marvell's balance sheet. The 23.9% premium is significant, and the all-stock structure dilutes existing shareholders.
Still, the deal reflects a broader consolidation trend in the AI hardware supply chain. As AI models grow larger and data centers become more complex, companies are seeking to control more of the underlying technology stack. Marvell's move is one of the boldest bets yet on that thesis.
The transaction is expected to close subject to regulatory approvals and shareholder votes. Neither company has disclosed a timeline for completion.
The AI spending boom that underpins the deal shows few signs of slowing. Chip executives across the industry expect demand for AI infrastructure to remain strong for years, driven by the proliferation of AI agents, chatbots, and other applications that require massive computing resources. Marvell's acquisition of Lumentum is a wager that this demand will continue to favor companies that can supply the complete hardware package.
