Concerns Grow Over Stock Market Exuberance as AI Spending Shifts Toward Debt
The stock market’s euphoria around AI is starting to show cracks. With megacap tech stocks driving market direction, the latest round of earnings has brought turbulence — and renewed caution from notable investors.
Disappointing results from Meta (-11.33%) and Microsoft (-2.92%) triggered a sharp sell-off on Thursday, though upbeat reactions to Amazon (-3.23%) and Apple (+0.63%) are helping lift futures on Friday. The market’s jumpy reaction underscores just how dependent sentiment has become on the AI boom narrative.
Among the skeptics is Michael Burry, founder of Scion Asset Management and the investor made famous by The Big Short. On X, Burry issued a cryptic warning:
“Sometimes, we see bubbles. Sometimes, there is something to do about it. Sometimes, the only winning move is not to play.”
Burry isn’t always bearish — his past filings show periods of bullish bets on names like Alibaba, Baidu, and JD.com. But in early 2025, he turned more cautious, taking put positions against Chinese tech and Nvidia, before flipping back to bullish trades by midyear. His latest filing, due soon, will reveal whether his recent social media tone reflects another shift toward defense.
What’s fueling his concern — and that of others — is a quiet but significant change in how Big Tech is financing its massive AI spending.
For most of the AI investment boom, companies were funding expansion from strong cash flows. But Meta’s new $30 billion Hyperion data center project in Louisiana breaks that trend. The deal relies primarily on debt held through a special purpose vehicle (SPV) — meaning the debt doesn’t sit directly on Meta’s balance sheet. While that preserves Meta’s credit rating, it also adds layers of financial complexity.
Investors worry this could mark the start of a broader shift from cash-funded capex to leveraged financing — what some are calling “quantum debt,” debt that is both there and not there, depending on who’s looking.
Reports from the Financial Times and Bloomberg suggest Meta may be preparing another $25 billion bond sale, signaling that debt-financed AI expansion could be gaining traction.
As enthusiasm for AI collides with creative financing, the question is whether this exuberance is still grounded in growth — or drifting toward another bubble.
