The companies building the infrastructure behind the artificial intelligence boom are facing a tougher test of investor confidence, as falling technology stocks, rising borrowing costs and growing political resistance threaten to complicate their expansion plans.
CoreWeave is due to report quarterly results on Tuesday, followed by Nebius on Thursday. Their earnings will offer investors an opportunity to assess whether the leading neocloud providers can sustain rapid growth while securing the financing required to purchase expensive AI systems and expand data center capacity.
Both companies depend heavily on debt to fund infrastructure investment. That financing model is becoming more difficult to sustain as lenders grow cautious about the profitability of AI infrastructure and the ability of smaller cloud providers to meet their debt obligations.
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The sector has endured a particularly difficult month, with several neocloud stocks losing about half their market value. Last Thursday, sharp declines across the industry contributed to the Nasdaq’s steepest daily fall in 19 months. Chipmakers Nvidia, Advanced Micro Devices and Micron also suffered heavy losses as concerns about mounting opposition to AI development added to pressure on technology shares.
The political environment has become another source of uncertainty. Democratic candidates won gubernatorial races in Georgia, Iowa, Nevada, Ohio and Texas last week, while voters rejected data center proposals in all but one of 41 related ballot measures across the United States.
The results have intensified questions about whether local opposition and changing political priorities could slow the construction of facilities needed to support the expansion of AI computing.
CoreWeave chief executive Mike Intrator sought to reassure investors, saying in a LinkedIn post that the company did not expect political developments to affect existing customer commitments or its contracted backlog.
“We currently don’t anticipate any impact to CoreWeave’s existing customer commitments or associated backlog as a result of shifts in the political landscape,” Intrator wrote.
The financial markets have been less reassuring. Yields on some CoreWeave bonds maturing in 2031 rose above 16%, signaling that investors are demanding significantly higher returns to hold the company’s debt. The spread on its five-year credit default swaps, which provide protection against default, climbed above 1,240 basis points, an increase of about 50% over the past month.
Anastasia Amoroso, chief investment strategist at Partners Group, said neocloud providers were particularly exposed to the deterioration in market conditions.
“I do agree completely that neoclouds in particular are going to be the most impacted,” she told CNBC’s “Closing Bell” on Friday.
Unlike major cloud operators such as Amazon and Microsoft, leading neocloud companies remain unprofitable and rely on a relatively small group of customers. That combination leaves them more exposed to changes in financing conditions, contract execution, and customer spending.
Debt Exposure Puts Expansion Plans Under Pressure
CoreWeave’s balance sheet illustrates the financing challenge. At the end of June, the company held $5.5 billion in cash against $35 billion in debt. Its latest earnings statement showed $1.3 billion outstanding on a financing facility carrying a 15% interest rate and due in March 2028. It also had $3.2 billion in obligations under a facility due in August 2030 at an 11% rate.
The immediate risk is not necessarily an imminent inability to meet existing obligations. The larger concern is whether CoreWeave can secure enough affordable capital to finance the next phase of expansion.
Luke Yang, a Morningstar analyst covering the company, said CoreWeave appeared to have the resources to fulfil its existing contracts and was unlikely to face bankruptcy in the near term. However, its growth ambitions over the next five years will require additional financing.
“If they want to issue money through equities, the stock price is not working in their favor, because the stock has been beaten down,” Yang said. “So I also want to see how management talks about how to close this financing gap.”
That concern exposes a difficult funding cycle for infrastructure companies. Falling share prices make equity financing more expensive for existing shareholders, while rising bond yields increase the cost of borrowing. Companies that need to keep building capacity could therefore face higher financing costs at the same time that investors become less willing to fund their expansion.
Paul Meeks, head of technology research at Freedom Capital Markets, described the negative market sentiment as a potential self-reinforcing cycle.
“Unfortunately, it’s a self-fulfilling prophecy, a doom cycle, where if the creditors are worried about CoreWeave paying back their debts, then of course they have to borrow going forward to fund their AI infrastructure build at exorbitant rates,” he told CNBC’s “Power Lunch” on Thursday.
Meeks said restoring confidence would depend on convincing investors that current infrastructure spending can translate into substantial future earnings. CoreWeave generated $5 billion in revenue in 2025, and he estimates that figure could rise to $42 billion by 2028, with an EBITDA margin approaching 70%.
“If they can get on that path and folks feel comfortable about that path, then they’ll feel more comfortable about the debts and CoreWeave’s financial wherewithal to pay those debts,” he said.
The scale of the projected growth makes the company’s earnings outlook important, but investors will also need evidence that expansion can be financed without allowing interest expenses to consume an increasing share of operating cash flow.
Customer Demand Remains Strong, But Concentration Risks Persist
The experience of smaller rival IREN offers a more complicated picture of the sector. The publicly traded neocloud provider reported late Thursday that about 48% of its backlog was tied to Microsoft. However, it also said AI cloud revenue had more than doubled from the previous period, helping its shares rebound by 20% on Friday and recover the previous day’s losses.
IREN co-chief executive Daniel Roberts said the performance of the company’s customer business did not match the pessimism in public markets, although he acknowledged that access to financing had become more difficult.
“There’s a disconnect between what we’re seeing in public market and what we’re seeing at the customer level,” Roberts told CNBC.
On the company’s earnings call, he said lenders and investors were increasingly examining whether large contracts could be delivered, financed and operated profitably, rather than focusing mainly on their headline value.
“Capital markets have become more selective in the last few weeks, and the questions have undoubtedly moved from how big the contract is to whether it can be delivered, financed, and run at a profit,” Roberts said.
IREN currently has $10 billion in debt, illustrating that the financing pressures extend beyond CoreWeave. Its reliance on Microsoft for a substantial share of its backlog also demonstrates the customer concentration risk facing neocloud operators. Losing or delaying a major contract could have a significant effect on revenue expectations and the ability to service debt.
The financing environment is also complicating plans by other companies to enter public markets. Britain’s Nscale filed paperwork for an initial public offering in September but has not published an updated prospectus since then. SB Energy, which filed at the beginning of September, faces similar uncertainty, while Australia’s Firmus abandoned its IPO plans last month.
Yang said the current market conditions were unfavorable for companies seeking public listings, as investors reassess the valuations and financing requirements of AI infrastructure businesses.
Intrator also addressed competition and investor concerns in an October memo to CoreWeave employees, arguing that some companies seeking to raise large amounts of capital lacked the operational capabilities and customer solutions that his company had developed.
“But these companies are trying to raise enormous amounts of capital without the execution, revenue, scale or software solutions that CoreWeave delivers to its customers,” he wrote.
The upcoming earnings reports will test that argument against the market’s growing focus on financial discipline. Analysts surveyed by LSEG expect CoreWeave’s revenue to increase about 160% from a year earlier to $3.55 billion in its latest quarter. Nebius is expected to report roughly sixfold revenue growth to about $908 million.
Meeks expects the results to provide some relief to investors, but he warned against dismissing the credit risks facing the sector.
“You can have a healthy bank, but if there’s a run on banks generally speaking then they could be in some trouble,” he said.
His comparison captures the central problem confronting neocloud providers. Strong customer demand and rapid revenue growth may support their long-term business case, but they do not automatically guarantee access to the capital required to deliver contracted infrastructure.