Marvell to Acquire Lumentum in $115 Billion All-Stock Deal to Dominate AI Optical Infrastructure

Marvell Technology has agreed to acquire optical-components maker Lumentum in an all-stock transaction valued at $115 billion. The move positions Marvell as a major competitor to Broadcom by securing critical laser and optical link capabilities for AI data centers. The deal reflects confidence in sustained AI spending and follows Marvell’s recent expansion into photonics through its $3.5 billion purchase of Celestial AI.
Key points
- Marvell Technology is acquiring Lumentum Holdings in an all-stock deal valued at $115 billion, announced on Monday.
- The acquisition is Marvell’s largest since its 2021 $10 billion purchase of Inphi and targets control of laser manufacturing for AI data centers.
- Marvell’s market value has surged to over $170 billion, with annual revenue doubling from $3 billion in fiscal 2021 to $8.2 billion in fiscal 2026.
- Nvidia previously invested $2 billion each in Marvell and Lumentum earlier this year, highlighting industry confidence in both firms.
- The deal aims to counter rival Broadcom, which offers a broader menu of AI data center hardware and is a key custom-chip partner for Google.
- Lumentum may benefit from a proposed US ban on new Chinese optical transceivers, potentially shifting demand toward domestic suppliers like Lumentum.
Background
Marvell was in advanced talks to acquire Lumentum as of late October 2026, which initially triggered a sharp 11% drop in Marvell shares and a 5% rise in Lumentum stock due to concerns over acquisition costs. The broader AI infrastructure sector has seen significant activity, including Anthropic’s negotiations for a second $45 billion data center lease and regulatory disputes over Google’s Minnesota data center deal, highlighting intense competition for computing capacity and grid access.
Why it matters
The acquisition consolidates Marvell’s position in the AI supply chain by integrating optical components essential for high-speed data movement in data centers. It intensifies competition with Broadcom and positions Marvell to capitalize on a proposed US ban on Chinese optical transceivers, potentially reshaping global supply chains for AI hardware.
What to watch
Marvell and Lumentum executives are scheduled to discuss the deal on CNBC TV at 9:15 a.m. ET. Market reaction will be monitored as the deal faces scrutiny regarding its valuation and strategic fit, particularly amid recent chip selloffs following Intel’s weak forecast.
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