Harvard Business Review LogoSeptember 11, 2026Jonathan Kitchen/Getty ImagesLots of people are asking whether the massive wave of AI infrastructure spending is a bubble poised to burst. But the more important question may be whether this actually poses a serious threat toThere’s a new parlor game circulating global C-suites: Is there an AI capex bubble—and if so, when will it pop? As the financial press dials up estimates of total investment in data centers—from hundreds of billions to lately several trillion dollars—the fear of compute overcapacity, low or negative returns, and a recession escalates.
The Questions You Should Be Asking About the AI Bubble
Lots of people are asking whether the massive wave of AI infrastructure spending is a bubble poised to burst. But the more important question may be whether this actually poses a serious threat to the economy. A closer look suggests that while a slowdown would create headwinds, the risks are far more nuanced than the alarmist headlines imply. History shows that bubbles can leave behind transformative infrastructure and innovation, even when investors lose money. For executives, the challenge is not predicting when the bubble will pop, but understanding how to navigate and capitalize on it.
AI capex surged from hundreds of billions to trillions, triggering C-suite debate on infrastructure bubble and compute overcapacity risks. Tech leaders must assess which AI infrastructure investments generate returns versus risks of overcapacity-driven market contraction.






