Every few weeks the AI trade gets a new scare with the same plot. The hyperscalers spend more than they earn, the gap gets filled with bonds, and Nvidia lends its customers the money to buy its own chips. Credit default swaps widen, someone says “circular” on television, and the semiconductor tape sells off for a day or three. Nvidia dropped as much as 3.2% on the mere report that Wall Street banks were lining up a $500 billion financing package with it.
The fear sounds like accounting. Mostly it’s arithmetic done against the wrong denominator.
Start with who is borrowing. Alphabet carried less than $11 billion of long-term debt at the start of 2025. Microsoft produced $183 billion of operating cash flow in fiscal 2026 against $116 billion of capex, and it’s still free cash flow positive. These are some of the strongest credits on the planet, drawing on balance sheets that sat close to empty for a decade. When a company like that borrows, it’s using a tool it had left in the drawer.
Capex Above Cash Flow Is What a Buildout Looks Like
The scary numbers are real. The four biggest spenders are on track to put roughly 90% of their operating cash flow into capex this year, up from about 65% in 2025. Meta’s second-quarter free cash flow was $784 million. Amazon’s trailing figure has gone negative. Alphabet posted the first negative free cash flow quarter in its history as a public company.
So what? Free cash flow shrinks when a company is building, and it should. Amazon is the obvious precedent: for long stretches its free cash flow was thin while it poured money into warehouses and data centers, and the data centers became AWS, the most profitable thing Amazon owns. Andy Jassy has said plainly that the squeeze lasts until the new capacity comes online. That’s a timing statement about assets that already have buyers lined up.
Look at what the capex is actually paying for. Microsoft says about $25 billion of its 2026 capex is component price inflation. Bears read that as cost creep. Read it the other way round. Suppliers only get to raise prices on things buyers can’t get enough of, and memory makers, optics vendors and power equipment suppliers have all been raising prices for a year. A glut doesn’t look like this.
The Bond Market Keeps Saying Yes
Amazon, Alphabet, Meta and Oracle issued about $194 billion of bonds in 2026 through early July, up 79% from all of 2025. Supply that size should have choked somewhere. It hasn’t. Alphabet’s $25 billion sale drew around $115 billion of orders at peak. Amazon’s March dollar deal raised about $37 billion against roughly $126 billion of orders. Alphabet sold a sterling bond maturing in 2126 (a century bond, the first from a tech company since Motorola in 1997) and took £9.5 billion of orders for £1 billion of paper.
Nobody lends money until 2126 because they think the borrower is a bubble that pops in 2028.
The softest book of the year, Amazon’s July deal, was still covered about 1.6 times. New-issue concessions have risen to around 12 basis points. That’s what size costs. It’s the market setting a price, which is its job, and every deal has cleared. A closed credit window looks like pulled deals and borrowers going to private lenders at double-digit coupons. We have Aa-rated companies paying a few extra basis points on record volume.
Long maturities cut the risk further. Hyperscalers have pushed issuance out to 20, 30 and 40 years, and the debt sits on corporate balance sheets backed by search, ads, cloud contracts and Office subscriptions. It isn’t secured on a single rack of GPUs. If one chip generation ages faster than planned, the coupon still gets paid out of everything else.
“Circular” Describes a Minority of the Deals
The circular-financing charge finally has a number on it, and the number helps the bulls. On October 1 the Bank for International Settlements measured how often AI customer-supplier relationships also carry an equity or debt link. In compute, cloud and related infrastructure it found 15.2%. Turn that around: about 85% of those relationships are plain commerce, a buyer paying a seller for hardware or capacity.
Even inside the financed slice, the deals aren’t one thing. Nvidia’s arrangement with SK Hynix and Broadcom’s with Samsung are supply agreements, which is how you lock in scarce memory and packaging. The backstop deals, where Nvidia guarantees some of OpenAI’s data center debt, are the ones investors argue about. Nvidia has said some deals under its $500 billion initiative carry a residual-value guarantee of no more than 25%. The company that writes that guarantee produced $102.7 billion of operating cash flow in fiscal 2026 and authorized an $80 billion buyback. It can afford to be the bank.
Vendor financing is also an old idea that works. Caterpillar and Deere have financed their own customers’ equipment for decades. When the supplier has the best balance sheet in the chain, its capital is the cheapest capital available, and using it speeds the whole market up.
The real test of circularity is simple. Does money eventually arrive from outside the circle? It does, and fast. Anthropic’s annualized revenue run rate went from about $9 billion at the end of 2025 to more than $65 billion at the end of July, with over $11.5 billion of revenue booked in the second quarter. OpenAI has passed $40 billion and expects more than half its revenue to come from businesses by year-end. Those dollars come from banks, insurers, software houses, law firms and retailers paying for tokens and seats. No chipmaker is buying those subscriptions to round-trip its own sales.
That’s the part the financing scare keeps skipping. The capex has a borrower who can pay, a bond market that keeps bidding, and a growing pile of end customers whose money has nothing to do with Nvidia’s balance sheet. The stocks sell off on the plumbing. The water keeps flowing.
