S&P 500 companies totalling $20 trillion in market cap have medium-to-high AI exposure — concerns of an impending bubble collapse extend to almost half of the index

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Almost half of all S&P 500 companies have a medium-to-high exposure to AI, according to estimates from Citigroup strategists, via Reuters. Collectively, those companies represent over $20 trillion in market capitalization, much of it driven by the recent excitement and rush to invest in AI as the next big thing. But there are more than whispers of a bubble forming, and with such great investment from the top companies, any sign of that bubble bursting could have catastrophic effects on those investors and the market as a whole.

Over the past year, we've seen an incredible revolution in AI infrastructure investment. Following Nvidia's call to build half a trillion dollars' worth of "AI factories" around the world, we've seen hundreds of billions of dollars invested (often in circular fashion) in a range of companies and countries. These investments prop up the valuation of the businesses involved, leading to new highs for the likes of Nvidia and Oracle. But in a rush to draw in investment, these companies have now exposed hundreds of the top firms to the risks of this new and largely unproven venture.

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Jon Martindale
Freelance Writer

Jon Martindale is a contributing writer for Tom's Hardware. For the past 20 years, he's been writing about PC components, emerging technologies, and the latest software advances. His deep and broad journalistic experience gives him unique insights into the most exciting technology trends of today and tomorrow.