January 25, 2025 - 5:00pm

Market timing may be a mug’s game, as the Wall Street adage has it. Still, we do seem to be drawing near to a moment of reckoning for US stocks.

Wall Street has been having its best first week of a presidency since Ronald Reagan. But by virtually every standard metric, the US market has reached price levels that typically precede a fall. On a price-to-sales ratio, it’s the most expensive market of the modern era. Ditto price-to-earnings, which has reached levels last seen before the 2000 dotcom crash. Compared to European companies with similar earnings, they’re attracting nearly double the price, and so are sucking capital from all over the world. Relative to government bonds, you’d have to go back a quarter century to find similar levels of valuation.

Given that buying stocks exposes you to all the risks associated with private capital, whereas government bonds are virtually risk-free, the logic of the market continuing to rise is hard to see. Why make investments which could keep you up at night when you could make even more money sleeping easy?

At their peak, bubbles work like pyramid or Ponzi schemes. Investors may fully expect them to crash, but if they believe they can foresee the crash and get out before everyone else, they keep buying, creating a self-fulfilling prophecy. And this can go on for a very long time. As the apocryphal quotation attributed to JM Keynes puts it, the market can stay irrational for longer than investors can remain solvent.

But there are now signs that the end is getting closer. Take that business of foreigners crowding into the US market. That’s often a contrarian indicator: being relatively low-information buyers who are likely to chase a trend, they act like fashion-junkies who buy into a craze just as the trend-setters are putting it on the shelf.

Equally, the “peak pessimism” about Europe at last week’s Davos Summit, compared to exuberance about America, is the sort of extreme emotion one finds just after the turn has begun. You wouldn’t guess it from the headlines, but over the last three months investors would have actually made a better return in the German market than the American one. The smart money may already be leaving.

Maybe the market won’t crash. It may just run out of steam and go sideways for a long time, with inflation gradually eroding the value of shares. With expectations of tax cuts and deregulation in the US, there will probably be some investment inflating the market a while longer. Nevertheless, what history has shown is that when valuations reach these levels, returns on shares over the subsequent decade are lousy. As that realisation dawns on retail investors, the money-flow will slow.

It’s possible this time is different, that we have entered a new era that has broken with all historical precedents, that AI will usher in an age of endlessly rapid economic growth. But in fact, the one thing that never changes is the refrain “this time is different”. One hears it at the top of every bubble. The crash is certainly nigh.


John Rapley is an author and academic who divides his time between London, Johannesburg and Ottawa. His books include Why Empires Fall: Rome, America and the Future of the West (with Peter Heather, Penguin, 2023) and Twilight of the Money Gods: Economics as a religion (Simon & Schuster, 2017).

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