Broadcom Isn't Just Selling Anthropic Chips Anymore — It's Financing Them
Broadcom has spent the past month assembling what amounts to a private credit facility for Anthropic. Banks and Blackstone are working to raise more than $60 billion in debt — a $42 billion senior-secured Class A tranche to fund Anthropic's leasing of Broadcom's custom AI accelerators, plus an $18 billion junior Class B tranche that Blackstone is helping syndicate — on top of a $35 billion structure Broadcom first put in place back in June. The headline is a chip deal. The substance is a chipmaker underwriting its own customer's balance sheet.
The supplier-as-lender model
The mechanism is a special-purpose vehicle that keeps tens of billions in debt technically off Broadcom's own books while Broadcom backstops the repayment — effectively a residual-value guarantee on hardware it is simultaneously trying to sell. It's the same playbook Nvidia has leaned on with a reported $500 billion-plus guarantee framework for its own customers, and it reflects a broader shift: the companies building AI accelerators are no longer just vendors, they're becoming the financiers that make the purchases possible in the first place. Anthropic is expected to be Broadcom's largest customer next year, which is precisely why Broadcom has an incentive to help fund the lease rather than wait for Anthropic to raise the cash independently.
Credit markets are already pricing the risk
Bond and derivatives traders noticed before most equity investors did. Broadcom's 2031 bonds saw yields climb roughly 14 basis points and its five-year credit default swaps widened about 28 basis points as the financing talks progressed — a steeper move than comparable AI-infrastructure credits like Oracle or SpaceX saw over the same stretch. S&P Global Ratings went further, formally flagging the unsecured $4.5 billion junior piece of the original June tranche as credit negative, even while leaving Broadcom's A- issuer rating untouched. The distinction S&P is drawing matters: the senior tranches carry residual-value support from Broadcom's own balance sheet, but the subordinated piece doesn't, which is a materially different risk than a normal corporate bond.
"The backlog of leases, purchase commitments, residual value guarantees and other backstops is poised to stretch into the trillions," warns JPMorgan's Tarek Hamid, describing the buildup as a form of growing "phantom leverage" across the AI supply chain that doesn't show up cleanly on any single company's balance sheet.
Why it matters beyond Broadcom
Bank of America estimates the guaranteed exposure behind Broadcom's SPV structure alone could balloon toward $370 billion by 2029 if the model keeps scaling at its current pace. The firm calls that manageable — but manageable assumes AI lease payments keep flowing reliably, and Broadcom and Nvidia are both guaranteeing leases to an overlapping set of frontier-lab customers using nearly identical structures. That's correlated risk, not diversified risk: a single demand shock in AI compute spending would land on every guarantor roughly at once, rather than being absorbed piecemeal across the industry. For now the market's reflex has been optimism rather than caution — Taiwan Semiconductor shares rose over 2.6% on the financing news alone, since more capital for Anthropic to buy chips eventually means more orders flowing back to TSM's fabs, whoever technically holds the debt in between.
What to watch: whether S&P or Moody's extends credit-negative language to Broadcom's senior tranches as the facility grows past $60 billion, how Broadcom characterizes the guarantees on its next earnings call, and whether Nvidia's parallel $500 billion-plus guarantee framework draws the same scrutiny from ratings agencies. The chip-financing boom has been treated as a demand story so far; the more interesting story may be how much of that demand is actually being manufactured by the chipmakers' own balance sheets.