I see signs of a stock market bubble. Here’s what I’m doing now

Right now, Edward Sheldon believes that parts of the stock market are in a bubble. Here’s what he is doing to protect his investment portfolio.

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.

Right now, there’s quite a bit of concern that the stock market is in a bubble.

Personally, I don’t think the whole stock market is in a bubble. However, I do believe some areas of the market, such as parts of the US technology sector, are overstretched at the moment. Here’s a look at some bubble indicators that concern me.

Everyone’s a stock expert

Prominent US investor Joe Kennedy once said something along the lines of: “When even shoe shine boys are giving you stock tips, it’s time to get out of the market.” What he meant by this was that when everyone is talking about investing in shares, it’s often a sign that the market has run too far.I

I’ve seen an explosion in the number of YouTubers giving share tips over the last few months. All of a sudden, everyone on YouTube seems to be an expert in shares! Worryingly, a lot of these content makers have very little experience in the stock market. I see this as a bubble indicator.

Euphoria is high

There’s also an incredibly high level of ‘euphoria’ in the market right now. Excitement levels are off the charts.

We have very seldom seen levels of investor euphoria like this,” said legendary British investor Jeremy Grantham (who has predicted a number of stock market crashes in the past) recently.

High levels of euphoria can be dangerous for stocks. “Bull markets are born on pessimism, grow on scepticism, mature on optimism, and die on euphoria,” said Sir John Templeton.

IPO activity

Recent IPO activity in the US also concerns me. Investors are scrambling to buy new tech stocks with little thought about the actual valuations of these companies. Just look at the Airbnb IPO. Its IPO price was $68. However, the stock opened near $150.

Valuations are extreme

Speaking of valuations, some tech valuations just look way too high, in my view. Take Tesla, for example. Its market cap is currently about $800bn which equates to a valuation of around $1.6m per car sold. It may prove to be justified long term, but it makes no sense to me.

Bubble indicator

Finally, zooming in on the tech sector, I think it’s worth noting that one of the UK’s largest global technology funds, Polar Capital Global Technology, closed itself off to new investors last year due to the enormous demand for tech stocks. After assets under management surged from £2.9bn in March to £4.5bn in June, Polar Capital announced that the fund was ‘soft closed.’ I see this as a contrarian bubble indicator.

Stock market bubble: what I’m doing now

Given these bubble indicators, I think it’s worth focusing on risk management right now. Here’s what I’m doing to protect my portfolio.

Firstly, I’m keeping a close eye on my exposure to expensive growth stocks. I don’t want my portfolio to be overly exposed to these kinds of stocks. 

Secondly, I’m making sure that my portfolio is nicely balanced. Recently, I’ve been boosting my exposure to more defensive names such as Unilever and Reckitt Benckiser. If the stock market falls, these shares should hopefully provide protection.

Finally, I’m stockpiling cash. This will give me firepower to buy great stocks at good prices if the market does pull back in the near future.

Edward Sheldon owns shares in Unilever and Reckitt Benckiser. The Motley Fool UK owns shares of and has recommended Tesla. The Motley Fool UK has recommended Airbnb, Inc. and Unilever. 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

Santa Clara offices of NVIDIA
Investing Articles

£5,000 invested in Nvidia stock 6 months ago is now worth…

Nvidia stock's taking a breather at the moment. But it could be getting ready for its next move higher, says…

Read more »

British coins and bank notes scattered on a surface
Investing Articles

I hold Lloyds. Is it madness to buy Barclays shares too?

Harvey Jones is keen to buy Barclays shares but wonders whether he's simply doubling down, given that he already holds…

Read more »

Asian man looking concerned while studying paperwork at his desk in an office
Investing Articles

It’s time we all took a long, cold look at the Lloyds share price

The Lloyds share price has been good to Harvey Jones, making him a huge fan of the FTSE 100 bank.…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

Warren Buffett didn’t retire early. But could his investing wisdom help you do so?

Warren Buffett's wisdom from decades of stock market investing is actionable even for a modest investor who simply aims to…

Read more »

Young female hand showing five fingers.
Investing Articles

5 compelling investment ideas for a Stocks and Shares ISA in 2026

Edward Sheldon discusses some ideas to consider for a Stocks and Shares ISA and highlights a UK stock that could…

Read more »

Man writing 'now' having crossed out 'later', 'tomorrow' and 'next week'
Investing Articles

Is this the best time to buy shares in a long time?

Earlier this week, Bill Ackman stated on X that this is the best time to buy shares in a long…

Read more »

A senior man and his wife holding hands walking up a hill on a footpath looking away from the camera at the view. The fishing village of Polperro is behind them.
Investing Articles

£1,000 buys 35 shares in an incredibly reliable FTSE 100 dividend stock

Despite falling 72% from their highs, shares in this FTSE 100 company have been an incredibly reliable source of dividend…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

This is what Warren Buffett has to say about passive income — and I’m listening!

While searching for new ways to earn passive income, our writer takes to heart sage advice from the Oracle of…

Read more »