Will the UK stock market crash in 2026?

At this time of year, itâs easy to find predictions for how the stock market will perform over the next 12 months. But Iâm always wary.
I canât help but think some of the forecasts are made only to grab the headlines. For example, if I say thereâs going to be a crash in 2026 â typically defined as a rapid market drop of more than 20% — and this proves to be accurate, I can then claim to be amazingly insightful and a bit of an expert when it comes to predicting market movements. On the other hand, if a crash doesnât happen, nobody will ever remember what I forecast.
Thatâs why I suspect some commentators regularly use this âC-wordâ. After all, eventually they will be proved right. But let’s try and cut through the noise and both ask and answer the question: will there be a stock market crash in 2026?
Getting warmer
Sorry to mislead anyone into thinking I have an answer but to be truthful, I have no idea!
Yet thereâs plenty of evidence to suggest that the US market in particular is overheating. The Buffett Indicator â a bit like a market-wide price-to-earnings ratio â is close to its highest-ever level. As the saying goes, if America sneezes, the world will catch a cold. Goodness knows what will happen on this side of the Atlantic if the US gets a bad dose of flu.
And since the FTSE 100 was launched in 1984, there have been four crashes â Black Monday (1987), the bursting of the dotcom bubble (2000), the global financial crisis (2007-2008), and the pandemic (2020). Therefore, crude maths suggests thereâs approximately a one in 10 chance of something similar happening in 2026.
Given the uncertainty, I think itâs sensible to, as the famous quote goes: âExpect the best, plan for the worst, and prepare to be surprised.â
Thatâs why I think itâs a good idea for anyone investing in the stock market to have a diversified portfolio. In other words, a balance of growth stocks and income shares, spread across different sectors operating in a wide variety of markets.
One option
A stock that I hold â J Sainsbury (LSE:SBRY) â has defensive properties that could make it worth considering by those expecting a crash, or at the very least, a market downturn.
Irrespective of the state of the wider economy, people have to eat. When incomes are squeezed, they may swap branded items for cheaper ones. But like most other grocers, Sainsbury’s has its own range of value products to cater for this demand. In fact, these offer the opportunity to earn higher margins as the grocer has greater control over the supply chain and can therefore capture more of the profit.
However, grocery retailing is a tough business. Competition is fierce and margins are tight. In addition, the logistics associated with keeping over 1,400 supermarkets and convenience stores fully stocked can be challenging.
But Sainsburyâs can trace its roots back to 1869. In its 156-year history, itâs survived wars, recessions, and a few pandemics, not to mention some stock market crashes. It’s also established a reputation for paying a generous dividend. And after all this time, it remains Britainâs second-largest grocer. Thatâs why I think itâs a stock worth considering by investors who are fearing the worst in 2026, but are also hoping for the best.
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James Beard has no position in any of the shares mentioned. The Motley Fool UK has recommended J Sainsbury Plc. 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.</em>
