Being a company’s only chip partner feels secure, until that company starts talking to competitors.
In the high-stakes economy of artificial intelligence, where data center buildouts run into the tens of billions of dollars, cloud giants can no longer afford to tie their infrastructure to a single hardware lifeline.
Broadcom (AVGO) found that out this week, after Marvell Technology (MRVL) disclosed an expanded custom AI chip partnership with Google (GOOGL) in a securities filing on Aug. 19.
Marvell’s stock jumped. Broadcom’s stock fell on the same headline.
One news event, two stock reactions
Marvell shares closed up nearly 10% at $237.27 on Wednesday, Aug. 19, according to CNBC. Broadcom shares fell about 5% the same day, as investors questioned whether Google was quietly diversifying away from its longtime custom-chip partner, CNBC reported.
Alphabet’s own stock barely moved.
The filing described a wide-ranging agreement. Marvell said it would build AI inference accelerators, storage controllers, network interface controllers, memory interface controllers and near-memory compute for Google’s tensor processing unit ecosystem, according to the filing. That covers nearly every layer of the custom chip stack, not a single component.
How the Google-Marvell warrant works
To help finalize the deal, Marvell issued Google a warrant to buy up to 58.97 million shares at $206.58 each, a stake worth about $12.2 billion if fully exercised, Reuters reported.
If Google hits every purchasing target attached to that warrant, the agreement could generate roughly $120 billion in cumulative Marvell revenue through fiscal 2033, according to Reuters.
Related: Top financial expert declares Marvell ‘no longer a marvelous buy’
That structure matters more than the dollar figure. A conventional supply contract gives a customer a discount.
Google’s Marvell warrant gives Google equity upside that grows every time it buys more chips, aligning its financial interest with Marvell’s success rather than just its price list.
Broadcom retains Google, loses monopoly
Broadcom is not losing Google as a customer. The two companies signed a separate long-term deal in April to develop and supply future generations of custom AI chips through 2031, Seeking Alpha reported at the time.
What changed is the assumption underneath Broadcom’s valuation, that Google’s custom silicon budget belonged mostly to one supplier.
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Marvell now has a design relationship inside all three major U.S. hyperscalers. It already builds custom silicon for Amazon’s Trainium chips and Microsoft’s Maia accelerators, and Google was the missing name on that list.
Wedbush Securities analyst Matt Bryson wrote in a note to clients that companies with custom silicon capabilities are now “in an advantageous position” in the AI buildout.
He added that Marvell’s win does not necessarily make Broadcom or Nvidia losers, since the custom chip market looks large enough to support several winners instead of one.
Single-supplier deals are ending
The pattern here extends past these two stocks. Every major hyperscaler now works with more than one company capable of building its chips, which means no supplier can assume a head start is permanent.
Amazon, Microsoft, and Google have all spread their custom silicon work across multiple partners instead of concentrating it with one.
That shift rewards suppliers with broad customer bases over suppliers with deep, single-customer ones. Broadcom built its AI premium on being the trusted incumbent at Google.
Marvell just showed that incumbency now has an expiration date, and the market repriced both stocks accordingly within a single trading session.
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