The AI build-out hits a funding wall
Neoclouds - firms renting out computing power to AI developers - are taking the brunt of the latest selloff. CoreWeave's bonds sank to distressed levels this month and its shares dropped 41% from Oct. 6 through Friday's close, even as the major US benchmarks notched new highs that day. Peers slid too, with Iren down 40% and Nebius off 36% over the same stretch.
Why does that matter? Investors are uneasy about how much debt these companies already carry and how much more they might add after earnings. That unease drove measures of credit risk tied to major technology firms investing in AI to fresh highs last week. The pressure showed up in stocks as well: on Thursday, the Nasdaq 100 slid close to 3%, while the S&P 500 logged its worst session since late July.
Credit stress, capex, and chips
These companies lean heavily on bond markets to fuel spending. With Treasury yields up and inflation stuck, borrowing is getting pricier. Ohsung Kwon at Wells Fargo said if funding risk rises and markets push back on capital spending plans, cuts next year would pose a direct threat to chipmakers that sell into data centers.
Elon Musk added that "the debt markets have almost entirely shut off access to money for any company that doesn't have substantial revenue independent of AI data centers," warning that "the 200+ neoclouds are going to see guppy-level death and consolidation." Those fears are mirrored in chips, with the Philadelphia Semiconductor Index down over 13% in October to date.
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Tom Essaye of Sevens Report cautioned that if an AI bubble bursts, the spark likely comes from credit - defaults by neoclouds and riskier AI borrowers - triggering markdowns, weaker spending, and slower growth. He said he is watching credit for more stress.
Contagion watch and the path for stocks
"It's now transitioning from being a micro event to a macro event," said Brian Reynolds of Reynolds Strategy, arguing the neocloud slide has moved from a niche story to one affecting credit and then equities. He expects more downside that could pull the S&P 500 back to its early June lows - a 4.7% drop from Friday's close - and noted the index slipped under its 50 day moving average on Thursday. Near term, he wants to stay defensive and added, "I really want to buy at that low 7,200 area."
Barclays strategists led by Venu Krishna see neocloud shares reacting unevenly to credit signals: widening spreads hit hard, while narrower spreads bring little relief, reflecting doubts about the durability of their business model. Krishna is scanning for contagion but says the damage remains concentrated in tech and growth. That lines up with recent flows, as investors have shifted out of highflying tech into more defensive sectors.
What it means for your portfolio
The combination to track: stretched neocloud balance sheets, rising financing costs, and the knock-on to chips. Selling in the market's biggest sector by weight has already tugged indexes lower; on Thursday the S&P 500 declined by over 1% despite a greater number of advancers than decliners. If funding stays tight and capex plans wobble, the pressure on both credit and equities could build, with June levels in play if Reynolds' map is right.
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