Anyone who has co-signed a loan for a friend knows how the story can end. When the payments stop, the bank calls you.
Nvidia Corp. (NASDAQ:NVDA) has co-signed a lot of loans. It owns a stake in CoreWeave Inc. (NASDAQ:CRWV).
It has promised to buy computing capacity the neocloud cannot sell. It also guarantees part of the data center leases signed by its AI cloud partners.
Now credit traders are pricing the phone call.
The cost of protecting against an Nvidia default has more than tripled this year.
Last week, it rose above Meta Platforms Inc. (NASDAQ:META), one of the chipmaker’s biggest customers, for the first time since at least November 2025, according to S&P Global Market Intelligence data shared with Benzinga.
Nvidia’s five-year credit default swap (CDS), the annual cost of insuring its debt against default, stood at 127 basis points on Tuesday, up 226% from 39 at the end of 2025.
On Oct. 21, it edged above Meta’s.
Moreover, it now trades at about twice the CDX North American Investment Grade index and above all six of the largest U.S. banks tracked by S&P Global.
| Month-end | Nvidia | Meta | CoreWeave | CDX North American Investment Grade |
|---|---|---|---|---|
| November 2025 | 40 | 58 | 699 | 51 |
| December 2025 | 39 | 55 | 764 | 50 |
| January 2026 | 39 | 56 | 622 | 49 |
| February 2026 | 44 | 61 | 662 | 56 |
| March 2026 | 46 | 70 | 670 | 63 |
| April 2026 | 43 | 75 | 553 | 54 |
| May 2026 | 40 | 71 | 475 | 51 |
| June 2026 | 48 | 71 | 550 | 51 |
| July 2026 | 74 | 91 | 824 | 53 |
| August 2026 | 82 | 93 | 792 | 50 |
| September 2026 | 86 | 100 | 843 | 60 |
| Oct. 26, 2026 | 127 | 119 | 1,148 | 63 |
CoreWeave’s CDS climbed from 589 basis points on July 1 to 967 on July 29. Nvidia’s spread peaked the same day, at 82.
The pattern repeated this month.
Between Oct. 12 and Oct. 22, CoreWeave’s CDS jumped from 903 to a record 1,167 basis points. Nvidia’s rose from 87 to 118, before hitting 130 the next day.
Over the past year, their correlation is 0.80, the tightest among large tech names, ahead of Oracle Corp. (NYSE:ORCL) at 0.69.
First, Nvidia is a shareholder.
In January, it bought $2 billion of CoreWeave stock at $87.20 per share, according to a CoreWeave filing.
Second, Nvidia stands behind CoreWeave’s revenue. Under a September 2025 order worth an initial $6.3 billion, it must buy capacity CoreWeave cannot sell to other customers through April 2032.
Third, the guarantees go beyond CoreWeave.
In its latest quarterly report, Nvidia said it “entered into land, power, and shell guarantees for select AI cloud partners’ data center lease obligations in the event of their default.”
Beth Kindig, lead tech analyst at I/O Fund, described the loop in June.
“As Nvidia makes these investments, CoreWeave and Nebius are going right back to Nvidia to purchase large volumes of GPUs,” she said.
As a result, if demand for computing power fades, the bill comes back to Nvidia.
On Tuesday, Nvidia added another signature. It said it will invest $3 billion in Meta’s roughly $37.5 billion equity offering.
Nvidia’s bonds tell the same story. Its 4.95% notes due 2036 now yield about 96 basis points more than the 10-year Treasury, up from about 73 in late September.
Still, the stress is not spreading: the CDX North American High Yield index has barely moved in a month.
Ed Yardeni and Elias Griepentrog of Yardeni Research said in a Monday note that mega-cap tech balance sheets are still treated almost like sovereign borrowers.
For the leveraged builders of AI infrastructure, however, “the credit market is increasingly imposing credit discipline,” they said.
Nvidia sits between the two groups. Its own balance sheet belongs in the first. Its signatures increasingly tie it to the second.
At 127 basis points, Nvidia’s CDS is far from distressed levels, and neither Nvidia nor CoreWeave has missed a payment. However, the credit market has started to price the co-signer as if the phone might ring.
Photo: Samuel Boivin on Shutterstock.com