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: these 2 warning signs make me anxious

As global stock markets surge to new record highs, I worry about herd behaviour before a stock market crash. Here are two examples.

| More on:

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.

Globally, share prices keep on surging. The US S&P 500 index yesterday clocked its 29th closing high in 2021. The STOXX Europe 600 index keeps hitting fresh records. The FTSE All-World — a global index — hit another record high this morning. This is great news for shareholders. But have markets risen too far, too fast?

Amid all this euphoria, I nervously recall one wise quote from billionaire investor Warren Buffett: “Be fearful when others are greedy and greedy when others are fearful.” Just how long until the next stock market crash? These two warning signs have me worried today.

Stock market crash sign #1: meme/Reddit stocks

During late-stage bull markets, company fundamentals go out of the window. What remains as a driving force is pure sentiment. And the momentum created by relentlessly positive sentiment can drive prices to bubble levels prior to a stock market crash.

For example, take the share prices of ‘meme’ or ‘Reddit’ stocks. For instance, GameStop Corp (NYSE: GME) stock has been on a wild roller-coaster ride in 2021. From a 52-week low of $3.77, GME stock ended 2020 at $18.84. So far in 2021, it has hit three huge peaks and troughs, exploding to a record of $483 on 28 January. Driven by crowds of private investors acting in concert, I’ve rarely seen such massive price volatility since 1999/2000. Then, the US stock market crashed spectacularly in March 2000. I expect this bubble in meme/Reddit stocks to go the same way in due course.

Warning sign #2: SPACulation (and electric-vehicle stocks)

My second sign of euphoric speculation is SPACs (special purpose acquisition companies). These ‘blank cheque’ shell businesses have no commercial operations. Instead, they list on a stock market and use investors’ cash as a war-chest to acquire private companies. The problem with SPACS is it seems they have gone from being one useful alternative to heavily regulated IPOs (initial public offerings) to being a bubble. According to Refinitiv data, almost 500 SPACs with over $140bn in assets were chasing deals at end-April. In a market this crowded, it is inevitable that bad deals will follow (because prices become frothy and widely inflated before a stock market crash).

Take Lordstown Motors (NASDAQ: RIDE), which floated last October via a SPAC takeover. On 11 February, shares in this maker of electric pick-up trucks were riding high, closing at $30.75. But stocks in electric-vehicle start-ups blew a huge bubble before bursting recently, as this Financial Times spreadsheet (Google doc) starkly reveals.

A week ago, on 8 June, Lordstown warned that it did not have enough money to begin commercial production of its Endurance truck. The firm warned, “These conditions raise substantial doubt regarding our ability to continue as a going concern”. Yesterday, its chief executive officer and chief financial officer both resigned. Lordstown shares closed at $9.26 on Monday, crashing almost seven-tenths (69.9%) in five months. Such crazy corporate shenanigans were common in the run-up to the stock market crash of 2000-03. SPAC investors beware.

Should I sell my shares?

Will worries about a stock market crash push me to sell up and run screaming to the woods? No, because I have near-zero exposure to these bubble markets. However, I do worry about the next market downturn or setback. That’s why I buy shares only in well-run, rock-solid, cash-generative businesses. For now, I’ll stick to bargain-hunting in the FTSE 100 and leave bubble stocks for younger, braver traders!

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

Night Takeoff Of The American Space Shuttle
Investing Articles

4 dirt-cheap growth shares to consider for 2026!

Discover four top growth shares that could take off in the New Year -- and why our writer Royston Wild…

Read more »

Road 2025 to 2032 new year direction concept
Investing Articles

I asked ChatGPT how to start investing in UK shares with just £500 and it said do this

Harvey Jones asks artificial intelligence a few questions about how to get started in investing, before giving up and deciding…

Read more »

Three signposts pointing in different directions, with 'Buy' 'Sell' and 'Hold' on
Dividend Shares

Yielding 10.41%, is this the best dividend share in the FTSE 250?

Jon Smith points out a dividend share with a double-digit yield, but explains why digging below the surface provides important…

Read more »

Investing Articles

Is 2026 the year it all goes wrong for the Rolls-Royce share price?

2025 has been another stellar year for the Rolls-Royce share price but Harvey Jones wonders just how long its magnificent…

Read more »

Night Takeoff Of The American Space Shuttle
Investing Articles

A SpaceX IPO could light a fire under this FTSE 100 stock

Shareholders of this FTSE 100 investment trust may have just got an early Christmas present from Space Exploration Technologies (SpaceX).

Read more »

Portrait Of Senior Couple Climbing Hill On Hike Through Countryside In Lake District UK Together
Investing Articles

Can dividends REALLY provide a second income you can live on?

Achieving a strong and sustained passive income in retirement may be easier than you think, even as yields on UK…

Read more »

Market Movers

33p penny stock Made Tech could be set for huge gains in 2026, if City analysts are right

This penny stock just experienced a sharp move higher. However, analysts reckon that there are plenty more gains to come…

Read more »

Elevated view over city of London skyline
Investing Articles

FTSE shares: a simple way to build long-term wealth?

Christopher Ruane explains some factors he thinks an investor should consider when trying to build wealth by investing in FTSE…

Read more »