Broadcom Stock Drops 4.6% as Marvell Lands Google Chip Deal and BofA Flags $370 Billion Financing Exposure

Broadcom closed at $362.48 on Wednesday, down 4.61% for the session, according to Tech Times. The stock has now lost ground on two separate fronts in less than two weeks.

The first hit came from Marvell Technology. The company disclosed in an SEC filing Wednesday that it has struck an expanded deal with Google covering custom silicon tied to Google's tensor processing units, including AI inference accelerators, storage controllers, network interface controllers, memory interface controllers, and near-memory compute, according to TheStreet and Morningstar. Marvell shares jumped roughly 10 to 11% on the news, according to Morningstar and 24/7 Wall St., while Broadcom fell 4.6%, according to Morningstar.

Google also received a warrant to buy up to 58,970,907 Marvell shares at $206.58 apiece, worth about $12.2 billion if fully exercised, according to Reuters as cited by 24/7 Wall St. and confirmed by Morningstar. TheStreet notes the vesting is tied to Marvell hitting revenue milestones in its Custom Products business, one tranche for every $500 million in that revenue, which on paper could total $120 billion if every tranche vests. TheStreet is careful to call that a ceiling, not a guarantee: "There are no guarantees here," the outlet writes, while noting Google is now financially incentivized to route business to Marvell.

Broadcom has been Google's primary outside partner on TPU development, and in April extended that relationship through 2031 to supply future generations of custom AI chips and networking gear, according to 24/7 Wall St. and Morningstar. That exclusivity narrative now faces a real challenge.

D.A. Davidson managing director Gil Luria told Morningstar that Google's stake in Marvell "is a bad sign for Broadcom since it creates a better alignment" between Google and Marvell, and that Google is diversifying its chip sources as it scales up computing capacity.

But Bernstein analyst Stacy Rasgon pushed back on the winners-and-losers framing in a note cited by Morningstar. Rasgon pointed out Broadcom never granted warrants on its Google or Meta deals, called Broadcom's guidance for more than $100 billion in AI revenue next year conservative, and argued competition among chipmakers should be measured by the size of the opportunity, not by who's losing. "There is probably plenty to go around for everyone, especially in the current environment which remains compute constrained," Rasgon said. TheStreet makes a similar point: Broadcom's TPU agreement runs through 2031, and Marvell's products may end up complementing Broadcom's rather than replacing them.

The $370 Billion Number Needs Context

The second pressure point is older and smaller than the headline number suggests. Bank of America analyst Tom Curcuruto published a credit note the week of August 11 modeling Broadcom's AI XPV Platform, the financing structure Broadcom launched in June with Apollo Global Management and Blackstone's Credit and Insurance business, according to Tech Times and ts2.tech.

Under that structure, outside investors buy AI compute racks built on Broadcom's chips, AI labs like Anthropic and OpenAI lease the racks, and Broadcom backstops the lease payments if a customer defaults. Bank of America modeled the platform scaling to $370 billion in senior debt by 2029 if it hits its full 20-gigawatt design target, according to ts2.tech.

That figure is not debt Broadcom currently owes, and it is not a Broadcom sales projection, ts2.tech and Yahoo Finance both stress. Broadcom's own quarterly filing caps its maximum loss on the platform's first transaction, the $35 billion Anthropic deal, at $29 billion, according to Tech Times and Yahoo Finance. Even Bank of America's modeled worst case across the entire platform, every customer defaulting simultaneously, comes to roughly $42 billion, per Yahoo Finance's reporting on the bank's analysis. Yahoo Finance, via Motley Fool contributor Daniel Sparks, argues the $370 billion figure "deserves scrutiny" but also "deserves context" because it's a ceiling on hypothetical future commitments, not a balance-sheet liability.

Bank of America reportedly downgraded Broadcom's bonds to market weight over the platform's structure, according to Yahoo Finance. That's a credit call, not an equity sell rating, and it reflects genuine uncertainty about how much risk Broadcom is layering onto itself to keep chip orders flowing without customers fronting the cash.

The reasonable worry here isn't that Broadcom is secretly insolvent. It's that off-balance-sheet financing structures like this one make it harder for outside investors to see the real risk until something goes wrong, and Stocktwits community chatter cited by 24/7 Wall St. shows retail investors are already circling that concern.

The Numbers That Actually Move

Broadcom's fundamentals remain strong on paper. Fiscal second-quarter revenue climbed 48% to $22.19 billion, with AI semiconductor revenue up 143% to $10.8 billion, according to ts2.tech. CEO Hock Tan guided to $16 billion in AI semiconductor revenue for the third quarter, though ts2.tech notes that's a forecast subject to revision.

Yet Broadcom shares are up just 10% year to date through Tuesday's close, badly trailing Marvell's 155% gain, AMD's 126% gain, and Nvidia's 18% gain over the same stretch, according to 24/7 Wall St. That gap, not the single-day drop, is the number Broadcom shareholders should consider heading into the company's fiscal third-quarter report in September.

Marvell reports its own quarterly results on August 27, according to TheStreet, which will be the first real test of whether the Google warrant tranches are translating into actual Custom Products revenue or remain, for now, a very large number on paper.