Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

Stock market crash: I’ll watch these 5 warning signs while buying cheap shares!

While investors worry about a stock market crash, I keep a close eye on these five warning lights. So far, they haven’t stopped me buying cheap UK shares!

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.

The past two weeks have seen increased volatility in UK shares and US stocks. Since 15 February, the FTSE 100 has dropped by more than 4%, before bouncing back to 6,660 points today. Meanwhile, fears of a US tech bubble have knocked 200 points off the S&P 500 since its record high on 16 February. What’s going on? And should I pay attention to fears of a coming stock market crash?

Stock market crash: I watch these five warning lights

1. UK and US bond yields

Since early 2021, UK and US government bond prices have been sliding, driving up bond yields. Since higher bond yields point to higher inflation and increased borrowing costs, this has unnerved equity investors. Today, the benchmark 10-year Treasury yield peaked at 1.624%, its highest level in a year. Likewise, the 10-year UK Gilt yield is 0.783%, the highest since March 2020’s market meltdown. Thus, UK investors worried about a stock market crash should keep a close eye on bond yields. Any further weakness in bond prices could spell bad news for share prices.

2. UK and US inflation

Bond prices are falling and yields rising because investors worry about inflation. If rising consumer prices lift inflation too much, then the US Federal Reserve and the UK Bank of England may need to raise interest rates. However, if any inflation surge above the 2% target proves temporary, then interest rates should stay at rock bottom. Again, investors worried about the risks of a stock market crash should watch inflation levels like a hawk.

3. The oil price

As the global economy undergoes a post-Covid-19 bounce, demand for oil should also rebound. Yesterday, the OPEC cartel and its allies voted to freeze oil output at current levels. An unchanged oil supply pushed up the price of Brent crude by 3% to $68.74 a barrel today. Furthermore, the Brent crude price is up more than a third (37%) in 12 months. Obviously, higher oil prices feed directly into inflation, so I routinely monitor the price of ‘black gold’. Meanwhile, investors looking to profit from higher oil prices could check out the very generous cash dividends on offer at British supermajors Royal Dutch Shell and BP.

4. GDP growth

Economists are universally optimistic that economic growth will surge worldwide as the Covid-19 threat recedes. For example, Beijing expects China’s economy to grow by more than 6% in 2021. With another round of US stimulus spending on the horizon, the American economy could also come roaring back. But accelerated economic growth can trigger higher pay rises, feeding into consumer prices and lifting inflation. Thus, while I worry about a stock market crash, I’ll keep my eye on GDP (gross domestic product) growth in the US, UK, and other large economies.

5. Warren Buffett is worried about bonds

Warren Buffett, the billionaire Oracle of Omaha, appears more worried about a bond bubble than a stock market crash. Buffett recently warned, “Bonds are not the place to be these days”. But higher interest rates reduce the present value of future corporate cash flows. In this scenario, worst hit might be highly valued US tech stocks. Of course, I agree with ‘Uncle Warren’, which is why I favour cheap UK shares paying huge cash dividends! Indeed, I see the UK’s FTSE 100 as offering some of the best deals in years for value investors like me. That’s why I’ll keep buying UK shares for now!

Cliffdarcy 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.

More on Investing Articles

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

3 Warren Buffett investing ideas I plan to use in 2026

After decades in the top job at Berkshire Hathaway, Warren Buffett is preparing to step aside. But this writer will…

Read more »

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

Looking to earn a second income next year (and every year)? Here’s one approach.

Christopher Ruane explains how some prudent investment decisions now could potentially help set someone up with a second income in…

Read more »

Senior woman potting plant in garden at home
Investing Articles

Could a 10%+ yielding dividend share like this make sense for a retirement portfolio?

With a double-digit percentage yield, could this FTSE 250 share be worth considering for a retirement portfolio? Our writer weighs…

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

Forget Rigetti and IonQ: here’s a quantum computing growth stock that actually looks cheap

Edward Sheldon has found a growth stock in the quantum computing space with lots of potential and a really attractive…

Read more »

UK money in a Jar on a background
Investing Articles

Here’s a £3 a day passive income plan for 2026!

Looking for a simple and cheap plan to try and earn passive income in 2026 and beyond? Christopher Ruane shares…

Read more »

Blue NIO sports car in Oslo showroom
Investing Articles

NIO stock’s down 35% since October. Time to buy?

NIO stock has had a roller coaster year so far! Christopher Ruane looks at some of the highs and lows…

Read more »

Investing Articles

By December 2026, £1,000 invested in BAE Systems shares could be worth…

Where will BAE Systems shares be in a year's time? Here is our Foolish author's review of the latest analyst…

Read more »

Mature people enjoying time together during road trip
Investing Articles

Keen for early retirement with a second income from dividends? Here’s how much you might need to invest

Ditching the office job early is a dream of many, but without a second income, is it possible? Here’s how…

Read more »