Broadcom's CEO Says Money Is AI's Biggest Constraint

Broadcom (AVGO) sells hardware behind Anthropic's AI and could lend its customer up to $42 billion to help pay for computing leases. NVIDIA (NVDA) has agreed to guarantee OpenAI's data center leases in Ohio, up to $105 billion. The suppliers building the AI boom are also helping finance its buyers.

That is the risk I'm watching most closely. If those customers struggle, suppliers could face weaker sales alongside unpaid loans or demands on their guarantees.

Broadcom CEO Hock Tan put capital at the center of the debate on October 12. "[What] I think might be the biggest constraint is capital," he said at a Singapore conference, according to CNBC. Intel (INTC) CEO Lip-Bu Tan also pointed to borrowing costs and investors' expectations for returns.

AIStockWire's AI Bubble Index tracks those financing arrangements alongside eight other readings from grid filings, SEC disclosures, bond prices, and market data. At its October 13 update, it stood at 63 out of 100, in the Heated band.

Valuations aren't its strongest warning. The basket's 10 AI stocks trade at a median of about 21 times forward earnings. The financing component scores 96 out of 100. For me, the more pressing question is how much risk suppliers are taking to keep their customers buying.

Chip makers are financing their own buyers

The circular financing component tracks deals where a supplier puts up money, credit, or a guarantee for a customer that then buys the supplier's product. The index counts only loans, loan guarantees, and lease backstops, the same categories used for Lucent's dot-com figure. On that basis, NVIDIA, Broadcom, and AMD (AMD) have committed about $204 billion, counted gross. By AIStockWire's arithmetic, that's 41.8% of the $487 billion in trailing 12-month revenue across the five AI chip makers in the basket, which also includes Marvell (MRVL) and Qualcomm (QCOM).

Lucent committed $8.1 billion to help customers buy its equipment, which by the same arithmetic is 24% of its $33.8 billion of fiscal 2000 revenue. Lucent's revenue then fell from about $30 billion to $12 billion, and the company lost $16.1 billion in 2001. Supplier financing helped amplify those losses when Lucent's customers ran into trouble.

The biggest single piece is NVIDIA's guarantee of OpenAI's data center leases in Ohio. In an August 17 filing, NVIDIA said its "aggregate payment obligation is cumulatively capped at $105 billion."

Broadcom's arrangements with Anthropic are conditional. In its latest 10-Q, Broadcom says a customer may issue it up to $42 billion of convertible notes to cover lease obligations, with Broadcom buying the notes. None had been issued as of August 2. Anthropic's IPO prospectus identifies Anthropic as that borrower. The facility would cover about a third of a $125.2 billion, five-year lease commitment for computing capacity built on chips Broadcom helped design. The same 10-Q also describes a backstop of up to about $29 billion on a customer's lease payments to a financing partner, and Apollo's June announcement of that financing tied it to Anthropic's compute capacity.

Add equity stakes and capacity-purchase agreements, and the chip makers' gross total reaches $299 billion, or 61.3% of revenue by the same arithmetic. Some commitments may cover the same leases, so overlaps can't be ruled out. Every deal is listed in the index's money loop ledger.

The case that this isn't Lucent

The headline totals measure commitments, rather than cash already paid. The filings reviewed explicitly identify about $2.0 billion of the chip makers' commitments as funded. That's a disclosed minimum, not a complete total of cash paid. NVIDIA's Ohio guarantee depends on the leased space being ready for service, "expected beginning in 2028," and pays out only if OpenAI defaults on a lease or stops paying.

The borrowers are different too. Lucent often lent to carriers the banks had already refused. OpenAI has a $50 billion equity investment from Amazon (AMZN) behind it.

What else is running hot

Three other readings point the same way.

Announced demand isn't the same as committed demand. Across seven screens run by grid operators, utilities, and regulators, the median share of announced data center demand that hasn't cleared the relevant screening criteria is 65%.

Insiders are selling more than usual. Discretionary insider selling across 25 AI infrastructure names came to $989 million over the last 90 days, against a baseline of $543 million. That excludes pre-planned 10b5-1 sales and tax withholding. NVIDIA insiders account for 96% of it.

Money is getting more expensive for AI borrowers. Wellington Management's Loren Moran said on October 11 that hyperscalers will probably sell about $300 billion of investment-grade bonds this year, with buyers "demanding more compensation to lend to these issuers." SoftBank (SFTBY) priced about $11.1 billion of junk bonds on September 24, with coupons up to 9.75%, to fund its OpenAI investment. Recalculated with SoftBank included, the median AI borrower's bonds trade at a spread 144 basis points wider than the median high-yield bond.

None of this is a crash call. The index measures how hot conditions are, not when they break, and 63 is short of the Overheated band that starts at 71. But in 2000, supplier financing was part of what broke. The next round of 10-Q filings may clarify how much of these commitments has been funded or called upon. Hock Tan may be right that capital is the constraint. The question is how much of it the chip makers end up supplying themselves.

Data and methodology: Figures are as of October 13, 2026. The index reading is from that day's final update, at 6:35 p.m. ET, and bond data is from State Street (STT)'s October 12 holdings. The index's nine weighted readings are the commitment gap (18%), valuation (13.5%), cost of money (11.5%), contracted cover (11%), circular financing (10%), insider selling (10%), counterparty concentration (10%), momentum (10%), and complacency (6%). Circular financing was added on October 10, and earlier readings weren't recalculated. SoftBank's dollar bonds join the bond basket starting with the October 14 update. The previously published October 12 spread gap, without SoftBank, was 102 basis points and isn't restated. The change phases in through a rolling median of up to five readings.