3 of my top warnings signs of an impending stock market crash

Jon Smith talks through the fear and greed index along with other stock market crash warning signs, as well as stocks he is considering buying in response.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

So far this year, stock markets around the world have differed in performance. The tech heavy NASDAQ is down almost 10% since the start of the year. In the UK, the FTSE 100 has fared better and is in the green by 1.5%. But a common question going around is whether the global markets could be due for a stock market crash. Although it’s impossible to predict this kind of event, here are some of the warning signs that I look out for.

Overvalued stocks

One metric that usually helps to forecast a stock market crash is when the index is overvalued. How can I pin down what the value is? One tool I can use is the price-to-earnings ratio. As a general rule of thumb, the higher the number, the higher the chance that a stock is overvalued. When I consider the FTSE 100, the index has an average price-to-earnings (P/E) ratio.

As of the end of 2021, the FTSE 100 P/E ratio was 14.86. When I compare this to the numbers over the past few years, this isn’t that high. At this time last year, it stood at 17.55, and two years ago, it was 16.30. So this isn’t a warning alarm that should be sounding concerns at the moment.

A note of caution here is that this considers the full index. If I just consider individual stocks, then the specific P/E ratio should be used instead. In this way, I can find some great companies with low P/E ratios, such as Royal Mail Group with a ratio of just 8.

Fear and greed concerning a market crash

Another warning sign I use is the fear and greed index. This is a number, from 0-100, that is published each day. The low represents fear, and 100 would be ultimate market greed. It’s put together using different tools, including market volatility, momentum, and relative strength. Although it’s geared towards the US stock markets, I apply it equally to the UK. After all, history shows that a stock market crash usually involves most developed countries around the world.

At the moment, the index is at 52. Therefore, this doesn’t seem to highlight to me a market crash is imminent. In fact, it confirms to me that if anything, investors are fairly well balanced in their actions right now. If I’m still concerned, I can consider buying a defensive stock, such as utility provider SSE.

Interest rate projections

A third pointer I use is the forecasted interest rates. Typically, when interest rates are being cut, the equity market starts to perform better. This is because cutting interest rates should help to stimulate economic growth. Consumers have a greater incentive to spend rather than save.

The inverse is also true. As we stand, some major banks are calling for three rate hikes from the Bank of England this year. This is likely to be matched in the US. So in terms of a warning bell for a stock market crash, this point does concern me.

I don’t think it’s the end of the world, as central banks clearly will be cautious in raising rates due to Covid-19. What I can do in this regard is look to buy stocks that benefit from higher interest rates, such as banking stock NatWest Group.

Jon Smith and The Motley Fool UK have 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.

More on Investing Articles

Investing Articles

Suddenly investors can’t get enough of GSK shares! What’s going on?

After years in the doldrums, GSK shares are suddenly the most bought stock on the entire FTSE 100. Harvey Jones…

Read more »

'2024' art concept overlaid on a stock screener
Investing Articles

£5,000 invested in Greggs shares in October 2024 is now worth…

Despite facing a multitude of challenges today, might Greggs' stock be worth a look after losing well over a third…

Read more »

Investor looking at stock graph on a tablet with their finger hovering over the Buy button
Investing Articles

Where will Rolls-Royce shares go next? Let’s ask the experts

Rolls-Royce shares have wobbled as aviation uncertainty grows. But can the City's glowing forecasts help get the price climbing again?

Read more »

Two female adult friends walking through the city streets at Christmas. They are talking and smiling as they do some Christmas shopping.
Investing Articles

No savings at 45? Here’s how investors could still build a £17,360 second income

It’s never too late to start investing, and with compounding working over time, Andrew Mackie shows how investors could still…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

How to invest £10,000 to aim for a £6,108 annual passive income

UK REITs have been getting a lot of attention. But our author thinks they're still the place to look for…

Read more »

Close-up of a woman holding modern polymer ten, twenty and fifty pound notes.
Investing Articles

What sort of passive income stream could you build for a fiver a day?

Think a few pounds a day might not go far? In fact, that could be the basis of some pleasing…

Read more »

British Isles on nautical map
Investing Articles

I sense a potential opportunity if the FTSE 100 loses this quality growth stock…

Rightmove falling out of the FTSE 100 might have been unthinkable a year ago. But that's the reality investors are…

Read more »

The flag of the United States of America flying in front of the Capitol building
Investing Articles

The largest S&P 500 holding in my ISA is…

Edward Sheldon's making a large bet on this S&P 500 stock. Because he sees the long-term risk/reward proposition very attractive.

Read more »