The great AI stock market crash! Has it already started?

Talk of a US stock market crash seems to be in the headlines almost every day these days, as stock prices keep on setting new records.

| 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.

Mindful young woman breathing out with closed eyes, calming down in stressful situation, working on computer in modern kitchen.

Image source: Getty Images

There’s an old saying — if we knew the stock market was going to crash tomorrow, it would crash today.

And based on what happened to US markets Friday (10 October), has the crash already started? It was the biggest US daily fall since President Trump shocked the world with his massive tariff plans in April.

The S&P 500 lost 2.7% on the day, with the Nasdaq down 3.6%. AI-related companies have accounted for around 80% of US stock market gains this year. Is it time to hit the Sell button?

Panic! Or maybe not

The first thing is… relax. And then don’t read too much into one day’s stock market moves. As I write on Monday (13 October), US stock market futures are bouncing back.

It seems like Friday’s investors were paying more attention to Trump’s renewed tariff threat to China than to JP Morgan CEO Jamie Dimon. It was Dimon who, last week, warned of a 30% chance of a stock market crash within the next six months — or maybe two years.

OpenAI CEO Sam Altman has said he expects some people will lose a lot of money backing AI stock bubbles. But he’s also said: “We are confident that this technology will drive a new wave of unprecedented economic growth.

Who’s right? The bears who expect losses from an AI slump? Or the bulls who see big AI gains? I reckon they’re all right, to some degree.

2000 all over?

The dotcom bubble bursting in 2000 was scary. And some today see Nvidia (NASDAQ: NVDA) as the Amazon of the AI bubble.

Remember Amazon crashed more than 90%? Let’s not forget that it went on to soar much higher — and even investors buying at the 1999 peak would have enjoyed a multi-bagger if they’d held on.

There’s something very different about Nvidia though — valuation. Never mind the dotcom price-to-earnings (P/E) valuations in the hundreds, or even in the thousands (and that’s for companies with actual earnings). Nvidia currently has a forecast P/E of 42, dropping to around 25 by 2028.

With the kind of growth potential it could have, Nvidia stock doesn’t look overpriced to me. Valuation is, of course, based on forecasts — and those surely reflect the massive AI optimism we see in all the headlines today.

If companies are ploughing too much cash into AI too soon, those forecasts could be excessive. And if they’re lowered, that’s another thing that could trigger a deflation.

Bull or Buffett?

I’m bullish on AI driving Nvidia higher in the long term. But I’m really wary of the cash piling into everything AI right now. I fully expect some of the high flyers to crash and burn. And I fear they’ll drag the quality companies down with them.

I prefer Warren Buffett‘s approach of holding cash and waiting for better future buying opportunities — his Berkshire Hathaway is sitting on around $340bn.

But I’m approaching it like this out of long-term excitement, not short-term fear. And which company do I most hope to be able to buy cheaply in the not-too-distant future? It’s Nvidia, which I firmly rate as worthy of long-term consideration — even with the short-term danger.

JPMorgan Chase is an advertising partner of Motley Fool Money. Alan Oscroft has no position in any of the shares mentioned. The Motley Fool UK has recommended Amazon and Nvidia. 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

Young mixed-race woman looking out of the window with a look of consternation on her face
Investing Articles

With stock market risks emerging, is now the time to consider the 60/40 portfolio?

The stock market could be in for a period of turbulence. Here’s a simple strategy that can help long-term investors…

Read more »

Bus waiting in front of the London Stock Exchange on a sunny day.
Investing Articles

Is a stock market crash coming? It’s not too late to get ready!

Christopher Ruane sees reasons to fear a coming stock market crash. Rather than tying to time it, he's hoping to…

Read more »

Investing Articles

Down 4% in 2026, is now the time to consider buying Nvidia shares

Has Nvidia become too big to keep growing? Or is the stock’s decline this year a chance to think about…

Read more »

Investing Articles

Is the party finally over for Rolls-Royce shares?

Rolls-Royce shares have made investors rich but momentum is slowing and the Iran conflict isn't helping. How worried should we…

Read more »

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

7.8% dividend yield! A dirt-cheap UK income share to buy today?

I’m on the hunt for lucrative passive income opportunities, and this under-the-radar FTSE stock currently offers a whopping 7.8% dividend…

Read more »

Close-up image depicting a woman in her 70s taking British bank notes from her colourful leather wallet.
Investing Articles

3 passive income stocks tipped to soar 41% (or more) by 2027

One of these shares offering passive income is trading at a massive 79% discount to where City analysts think it…

Read more »

Mature Caucasian woman sat at a table with coffee and laptop while making notes on paper
Investing Articles

171,885 shares of this FTSE dividend star pays an income equal to the State Pension

Zaven Boyrazian calculates how many shares investors would have to buy to generate enough income to match the UK State…

Read more »

Finger clicking a button marked 'Buy' on a keyboard
Investing Articles

This stock’s the opposite of red-hot at the moment. But I reckon it could still be one to buy

The recent dramatic fall in the value of this FTSE 100 stock makes James Beard think it’s a stock to…

Read more »