Where to Invest Now as US Stock Markets Get Bubbly

The US equity market, with the S&P 500 hovering near all-time highs, is expensive. This isn’t controversial. Depending on which measure you use, US stocks have arguably been overpriced for several years.

But now, the S&P 500 may be at never-before-seen levels of overvaluation, according to recent research from analyst Joachim Klement of Panmure Gordon.

The benchmark index is currently trading not far from the 44 level it reached during the dotcom bubble in 2000 based on a cyclically adjusted price-to-earnings (CAPE) ratio, which compares the index price to average earnings over 10 years rather than one.

Klement says the CAPE ratio is closer to 68, or higher than it has ever been, when adjusted for the fact that earnings are also well above their long-term trend. In short, the US is experiencing a price bubble on top of an earnings bubble.

The obvious culprit is artificial intelligence. A small group of technology-focused stocks dominate the investment indexes as companies compete to outspend each other on AI infrastructure. We’ve seen variations of this story before, from railroad booms to the aforementioned dotcom bubble, and we know how it typically ends.

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However, the trouble with bubbles is that while they aren’t always hard to spot, it’s nigh on impossible to predict when they’ll pop (if it was easy, they wouldn’t form in the first place). Timing the market is a fool’s errand.