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

Are these areas of the stock market in a bubble as we approach 2025?

Certain areas of the stock market have felt a little frothy in recent weeks. And Edward Sheldon believes that investors need to be careful.

| 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.

Young Asian woman with head in hands at her desk

Image source: Getty Images

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.

In 25 years of investing in the stock market, I’ve seen my fair share of ‘bubbles’. From dotcom internet companies to crypto miners, I’ve seen a lot of stocks surge to unsustainable valuations (and then come crashing down).

Looking at the market today, I reckon there are bubbles brewing in certain areas. Here are some stocks I believe investors need to be careful with.

Quantum computing stocks

Over the last month or so, many small quantum computing stocks have shot up spectacularly. Believe it or not, some are up more than 1,000% in a month.

I get why there’s a high level of excitement here. Quantum computing is an incredibly exciting technology and right now, Big Tech companies like Amazon and Alphabet are getting involved.

Yet currently, some valuations are insanely high. Quantum Computing stock, for example, has a price-to-sales ratio of around 5,500 (a ratio of 20 is usually considered high!)

Now, there’s no doubt that quantum computing (the technology, not the stock) has a lot of potential. However, I think shares in this area of the market have moved too far, too fast.

I’ve seen this movie before (many times) and it always ends in tears.

The last couple of weeks… it felt a little bubbleish
Rick Rieder, Global Chief Investment Officer of Fixed Income at BlackRock

Unprofitable tech stocks

Quantum computing isn’t the only area of technology that looks bubbly to me though. To my mind, a lot of unprofitable tech companies are approaching bubble territory.

An example here is SoundHound AI, which offers voice artificial intelligence (AI) solutions. Over the last month, this stock has surged about 250%. As a result, it now trades on a price-to-sales ratio of about 120. This company has some interesting technology, but at that multiple, I think it’s a risky investment.

I’ll point out that I’m very bullish on the AI theme. Currently, my portfolio is loaded with AI stocks.

However, I’m focused on profitable AI companies such as Amazon, Alphabet, Apple, and Nvidia. One thing I’ve learnt over the years is that it’s much safer to stick with profitable companies when investing in themes.

Tesla

Finally, I’m going to say that, after a huge share price spike since the US election, Tesla (NASDAQ: TSLA) is now approaching bubble territory. At current levels, the stock has a price-to-earnings (P/E) ratio of about 170 and that looks way too high to me.

Back in April, Tesla was trading near $140. Today, however, it’s at $420 (and it was at $480 in mid-December).

Is that 200% rise justified?

Sure, CEO Elon Musk is in a powerful position because he’s pals with Donald Trump. And the company has a lot of potential on the autonomous driving side of things.

But Tesla’s electric vehicle (EV) business isn’t looking great now. According to the European Automobile Manufacturers’ Association (ACEA), for the first 11 months of 2024, Tesla recorded a 15% year-on-year decrease in registrations.

Meanwhile, it could be a while before we actually see Tesla’s driverless cars on the road. Recently, a lot of drivers have been highlighting problems with the company’s self-driving technology.

Now, obviously, this is an exciting company and it could turn out to be a good long-term investment. But for me, Tesla stock has risen too far, too soon, so I won’t be touching it.

Ed Sheldon has positions in Alphabet, Amazon, Apple, Microsoft, and Nvidia. The Motley Fool UK has recommended Alphabet, Amazon, Apple, Microsoft, Nvidia, and Tesla. John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. Suzanne Frey, an executive at Alphabet, is a member of The Motley Fool’s board of directors. 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 Growth Shares

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Investing Articles

These FTSE shares crashed in 2025… what now?

Anyone who bought these FTSE shares at the start of 2025 is probably kicking themselves right now. But after falling…

Read more »

Rolls-Royce Hydrogen Test Rig at Loughborough University
Investing Articles

I asked ChatGPT for a discounted cash flow on the Rolls-Royce share price. Here’s what it said…

Out of curiosity, James Beard used artificial intelligence software to see whether it thinks the Rolls-Royce share price is fairly…

Read more »

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

With a 10-year annualised return of 26%, this growth stock could be too good to ignore

With consistent demand for its products, Diploma has managed to achieve average returns far above most other FTSE 100 stocks.…

Read more »

Investing Articles

£5,000 invested in a FTSE 250 index tracker at the start of 2025 is now worth…

Despite underperforming the FTSE 100, the FTSE 250 has been the place to find some of the UK’s top growth…

Read more »

Investing Articles

Up 136%, is this under-the-radar growth stock the UK’s hottest opportunity for 2026?

Amcomri has only been on the market a year, but it’s been one of the UK’s top growth stocks and…

Read more »

British coins and bank notes scattered on a surface
Investing Articles

How much cash is enough to start earning passive income from the stock market?

When targeting passive income, investors always ask the same question: how much do I need to get started? Mark Hartley…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

Up 689% in 5 years! Is this still one of the best stocks to buy now?

This under-the-radar FTSE 250 stock's delivered Rolls-Royce-like returns since 2020! Should investors consider it for their stocks-to-buy lists?

Read more »

Two mid adult women enjoying a friends reunion city break for the weekend in Newcastle upon Tyne, England.
Investing Articles

Down 48% in a year. Is this UK stock about to hit the buffers?

James Beard discusses whether this UK stock could be badly affected by the government’s plan to bring Britain’s rail network…

Read more »