Broadcom's $63 Billion Anthropic Deal Shows Who Now Underwrites AI

Four Wall Street lenders will fund Broadcom chips leased to Anthropic, but the senior debt cleared only after the chipmaker agreed to stand behind the value of the hardware it sold.

Key Takeaways

• A new vehicle funded by Bank of America, Blackstone, Citi and Morgan Stanley will buy Broadcom XPUs and networking gear for lease to Anthropic, with deliveries starting in 2027.
• Broadcom’s residual value support matches the first lien tranche, reported near $43.5 billion, adding to a $29 billion backstop on June’s AI XPV deal and testing its balance sheet.
• Shares closed up 2.3% Monday as Anthropic’s S-1 went public, then rose about 4.5% early Tuesday as analysts said the financing secures Anthropic’s 2027 purchases of Broadcom chips.

The Lender Behind the Lenders

On its surface, the $63 billion financing announced on October 26 is a story about banks. Bank of America, Citi and Morgan Stanley are arranging the senior debt. Blackstone is the sole provider of the committed second lien. A newly formed special purpose vehicle will use the money to buy Broadcom’s custom XPU accelerators and networking equipment and lease them to Anthropic, with deliveries expected to begin in calendar 2027. Read closely, the transaction is really about Broadcom, and about how much a supplier must now put at risk to keep its largest customer buying.

The decisive term is a single sentence in the release: Broadcom will provide residual value support to the vehicle equal to the first lien financing. The parties did not size that tranche, but two people familiar with the matter told Reuters it comes to roughly $43.5 billion, about 69% of the total. The senior lenders are taking Broadcom’s credit as their comfort and Anthropic’s lease payments as their cash flow. Between the two sit the chips, collateral whose future worth the manufacturer has promised to defend. That arrangement is what allows a company still reporting operating losses to lease hardware at a scale usually reserved for the largest cloud platforms.

A Weekend at the Table

The terms were not easily won. Bloomberg reported early in October that Broadcom’s syndicate had begun gathering about $60 billion of chip financing. According to The Wall Street Journal, Chief Executive Hock Tan spent the better part of two months pressing lenders to commit more than $40 billion, and some banks considered stepping away because the pricing did not pay them enough for the risk. In talks with bank executives over the weekend before the announcement, Tan agreed to higher interest rates and stronger protections, the Journal reported.

Two weeks earlier, at the DBS Asia Future Forward Conference in Singapore, Tan said that shortages of wafers and memory were being resolved and that capital might become the industry’s binding constraint. Monday’s release has him declaring that the deal shows “there is capital available to finance such growth.” Both statements hold. The capital was there, but at a higher price, and only once Broadcom placed more of its own balance sheet behind it. The warning and the vindication describe the same market from opposite sides of a negotiating table.

Seller, Guarantor, Creditor

The deal formalizes a model Broadcom introduced in June, when it launched its AI XPV platform with a $35 billion tranche led by Apollo to deploy more than a gigawatt of compute for a single customer, which Reuters identified as Anthropic. Broadcom’s 10-Q for the quarter ended August 2 puts its maximum undiscounted liability under that backstop at about $29 billion once all racks are in service. The figure is the gap between 85% of outstanding lease amounts and whatever the racks fetch on resale. Broadcom judged the guarantee’s fair value immaterial and described such commitments as contingent liabilities with a low probability of occurring.

Anthropic’s S-1, made public the same Monday, shows how tightly the two companies are bound. It describes five-year master equipment leases with Broadcom, non-cancelable except on default, accounted for as finance leases and secured by the equipment, along with cash placed in a restricted account for Broadcom’s benefit. Reuters, reviewing the prospectus, put the lease payments near $125.2 billion and reported that Broadcom has agreed to lend up to $42 billion in notes convertible into Anthropic stock. Broadcom therefore sells the hardware, supports its value for the lessor and stands ready to finance the rent. Anthropic itself cites potential conflicts of interest in that arrangement.

The overlaps extend beyond the two principals. Morgan Stanley, a senior arranger here, is also a lead underwriter on Anthropic’s IPO alongside Goldman Sachs. Nor is the approach unique to Broadcom. In August, Nvidia and six financial firms, Blackstone among them, announced a plan to mobilize more than $500 billion to help customers fund purchases of its chips. Vendor finance has become a competitive instrument in its own right.

The Market’s Verdict

Investors chose relief over suspicion. Broadcom closed Monday at $329.17, up 2.33%, on a session dominated by Anthropic’s filing and days after the stock touched its lowest level since April. The financing, announced after the close, added about 0.6% in extended trading. On Tuesday morning the shares climbed roughly 4.5% to near $344, helped by D.A. Davidson’s upgrade to Buy and a price target raised to $400 from $350. Wolfe Research’s Chris Caso argued that with financing for Anthropic’s 2027 Broadcom purchases in place, those orders are now highly likely to proceed as planned.

The mood has shifted since August, when the stock fell after Bank of America analysts modeled how far contingent exposure on the XPV platform could reach if it kept scaling, arriving at a theoretical $370 billion by mid-2029. Broadcom still trades well below its June 3 record of $495 and was down nearly 5% for the year, according to CNBC, even as 48 of the 51 analysts tracked by LSEG rate it a buy. The market has not dismissed the guarantee. It has concluded, for now, that visibility into the largest customer of Broadcom’s custom silicon business is worth more than the contingent risk attached to it.

What the Balance Sheet Can Bear

Broadcom has the earnings to carry the commitment. In the fiscal third quarter ended August 2, revenue rose 86% to $29.6 billion, AI semiconductor revenue climbed 221% to $16.7 billion and free cash flow reached $13.7 billion. Management guided fourth-quarter revenue to about $34.8 billion, including $21.7 billion from AI semiconductors, and ended the quarter with $24.0 billion of cash against roughly $59.4 billion of debt. Anthropic is moving faster still. First-half 2026 revenue reached $16.3 billion, up from $1.2 billion a year earlier, its operating loss narrowed to $693 million, and it held $131.7 billion in cash and short-term investments at June 30.

The harder question is aggregation. On a notional basis, the $29 billion XPV backstop and support near $43.5 billion on the new vehicle would together exceed Broadcom’s funded debt. Realized losses would depend on whether leases default and what the hardware fetches, not on headline ceilings, and Anthropic’s cash offers a substantial cushion in the near term. Yet Broadcom’s own April filing noted that use of the expanded TPU capacity depends on Anthropic’s continued commercial success, and the lenders have now accepted the same premise. The next markers are specific: Broadcom’s fiscal fourth-quarter results in December, the pricing of the second lien and the terms of Anthropic’s offering. The transaction settles whether AI hardware can still be financed at scale. Its structure suggests the answer increasingly rests on the seller’s willingness to stand behind the buyer.