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Product & chips · Sep 19, 2026

Two documents point to Anthropic as the "customer" whose lease Broadcom guarantees, with exposure of up to about $29B, but neither names it. Our check: the numbers match closely, so this is an inference.

Chips & semiconductors · This quarter (press release dated June 9; we found it September 18)

From the Sep 19, 2026 daily brief

If this inference holds, part of Anthropic's compute expansion is propped up by a chip supplier guaranteeing its lease; anyone watching Broadcom's credit exposure should track how the maximum-exposure figure for this guarantee moves in its quarterly reports. Our September 11 issue took apart the quarterly report of Broadcom, the US chipmaker. The structure: outside financiers buy Broadcom's AI racks and lease them to a customer. Broadcom guarantees the customer's five-year lease: on default, it pays 85% of the amount owed minus the resale value of the racks, a maximum exposure of about $29B once everything is deployed. If needed, the customer can also issue Broadcom convertible notes of up to $42B, an IOU from the customer to Broadcom whose proceeds can go only toward this lease (Broadcom filing list; open the 10-Q filed 2026-09-10). The 10-Q says only "our customer," and at the time we didn't accept a single outlet's identification. Today we found a joint press release from the parties to the deal. The first $35B of financing, led by US alternative asset managers Apollo and Blackstone (the money the financiers use to buy the racks), is meant to "facilitate Anthropic's previously-announced capacity expansion of more than 1 gigawatt," deployed at sites run by compute-site operator Fluidstack (Apollo press release, 2026-06-09). ⚠️ The press release says nothing about the guarantee. Tying the 10-Q's guarantee to Anthropic rests on two figures, "the first $35B" and "more than 1GW," matching across both documents, not on either document saying so. Broadcom says in the 10-Q that the program exists to bridge the gap between frontier AI labs' near-term cash flow and their huge up-front investment. ⚠️ Disclosure: our research system runs on Anthropic's models; this item only relays the documents.

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