Marvell’s stock pops on news of Google chip deal — and Broadcom’s falls

Marvell Technology shares jumped in premarket trading following the announcement of a custom artificial-intelligence chip partnership with Google, signaling a major expansion of their existing relationship. As part of the multi-year agreement, Google will also receive an option to purchase approximately $12 billion worth of Marvell equity, a structure that aligns the two companies’ long-term interests and provides Marvell with substantial financial backing.

The news weighed on Broadcom, a key competitor in the custom silicon market, as investors reassessed its hold on large-scale AI infrastructure deals. Broadcom and Marvell are the two primary merchant suppliers of custom ASICs—chips designed for specific workloads like AI inference and training—so a significant win for Marvell suggests a shift in the competitive balance.

For market participants, the headline number is only part of the story. The equity option indicates deep strategic commitment from Google, while the deal’s success will ultimately hinge on execution and the performance of the resulting chips in high-volume deployment. Watchers will also monitor whether other hyperscalers follow suit, as capacity for custom silicon becomes an increasingly central battleground in the AI arms race.