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At 228%, the Warren Buffett indicator says the stock market is strongly overvalued. Should I be worried?

Warren Buffett’s stock market indicator has reached alarmingly high levels this year. Here’s what it could mean for UK investors in 2026.

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The Warren Buffett indicator has just one job: to tell investors whether the stock market is overheating. And right now, at 228%, it’s sounding the alarm.

As a quick reminder, the indicator divides the total value of the US stock market by GDP. And as Buffett says, it’s “probably the best single measure of where valuations stand at any given moment.”

Should you buy Berkeley Group Plc shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

The problem today is that at its current level, the indicator is beyond the 200% threshold that the Oracle of Omaha warned is when investors are “playing with fire”.

Is disaster about to strike? Regardless, let me first say I’m not panicking. Here’s why.

Is a crash actually coming?

Stretched valuations are concerning, but alone don’t spell disaster. In fact, the indicator has been above its long-term trend for quite a few years now.

This is somewhat structural. Today’s US market is dominated by global technology companies that generate revenues well beyond the American economy.

Consequently, a simple market cap-versus-GDP comparison becomes somewhat less meaningful compared to the early 2000s. And as a result, anyone who’s been using it as gospel has so far potentially missed out on some terrific gains.

What should investors actually do today?

Even with the Buffett Indicator in the ‘danger zone’, the best strategy for investors remains the same. Stay focused on the long term and don’t try to time the market.

Too often, investors waiting for a crash or correction based on stretched indicators end up missing out on impressive returns that could decimate long-term wealth-building. Yet even with that in mind, this doesn’t mean the indicator should be ignored entirely.

There are some justifiable concerns about the current global economic landscape. As such, taking a more disciplined approach towards investing might be a prudent move. And that includes:

  • Ensuring good portfolio diversification.
  • Building a small cash buffer.
  • Drip-feeding capital rather than making large lump-sum investments.
  • And crucially, hunting for undervalued buying opportunities in an overpriced market.

Regarding the latter point, that’s where looking outside the US becomes especially interesting.

A bargain hiding in Britain?

While US stocks look expensive, the UK market continues to trade at a significant discount to global peers. One name that stands out today is Berkeley Group (LSE:BKG) – a premium housebuilder with shares recently down to their lowest level in nine years.

Despite what the weakened stock price suggests, institutional analysts seem to be growing bullish with a 16% 12-month share price rise being forecast. And company insiders are taking advantage, with several directors recently snapping up more shares.

The bull case is rooted in structural inevitability. The UK faces a chronic housing shortage, particularly in London and the South East, where Berkeley predominantly operates. And now that Labour’s planning reforms have passed, alongside falling interest rates, the group could be nicely positioned for a rebound.

However, while the long-term outlook is promising, the near-term trajectory remains a bit unclear. And even management has recently revised down its four-year delivery targets on the back of inflation costs and an ongoing affordability crisis.

Still, at a price-to-earnings ratio of just 9.1 and a share price at a nine-year low, Berkeley Group might be a classic Warren Buffett-style value opportunity. Cheap. Contrarian. And unloved. That’s why I think this stock deserves a closer look.

Zaven Boyrazian has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

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