Concentration and Leverage
The IMF’s analysis underlined the interconnected nature of big AI companies and the high levels of borrowing undertaken to fund investment in the sector. The “magnificent seven” big tech stocks—Alphabet, Amazon, Apple, Meta, Microsoft, Nvidia and Tesla—account for more than 35% of the S&P 500 share index in the US. This is up from 12% a decade ago, and their total market capitalisation has increased by more than 50% in the past two years.
The report warned of “growing evidence” that the successful rollout of AI “may not require investment on the massive scale being undertaken by ‘hyperscaler’ firms,” and that “potential economic gains may not be as large as expected.” Hyperscalers, which include Amazon Web Services, Google, Meta and Oracle, are building the underlying infrastructure for the AI rollout, including vast datacentres.
The IMF highlighted growing leverage that could amplify the effects of a crash, identifying soaring debts contracted by companies, hedge fund investment in the sector, and retail investors borrowing to speculate in AI stocks. In the event of an AI-led market downturn, “these growing sources of leverage heighten the potential for forced selling and surges in equity volatility,” the report stated.