Is it madness to buy Nvidia stock now?

Nvidia stock is back at record levels. But a frothy valuation leaves this Fool questioning whether he’d invest in the AI juggernaut.

| 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.

Man thinking about artificial intelligence investing algorithms

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.

Nvidia (NASDAQ: NVDA) stock is up 2,712% in five years, 31,141% in 10 years, and a jaw-dropping 366,732% since IPO in 1999. This demonstrates how enriching long-term stock investing can be.

It also shows how the chips — no pun intended — are stacked in favour of Foolish investors. I can only ever lose 100% of my investment on a stock (as long as I’m not buying on margin), but the potential gains are theoretically uncapped.

One figure that really bends my mind is that Nvidia’s market cap has increased by a staggering $3.2trn in just two years. To be clear, that’s trillions!

Nvidia is now a hair’s breadth away from overtaking Apple again to become the world’s most valuable company. This makes me wonder whether it’d be utter madness for me to buy the stock today.

The bull case

Nvidia is the undisputed leader in artificial intelligence (AI) chips. But whether its profits continue to grow like wildfire rests on the extraordinary capital expenditure of large cloud service providers. The main ones are Amazon Web Services (AWS), Microsoft Azure, and Alphabet‘s Google Cloud.

Other tech firms forking out for Nvidia’s chips include Meta Platforms (for its Llama open-source large-language models) and Tesla (for its self-driving and humanoid robot initiatives).

The great news for Nvidia investors is that AI-related spending is showing no sign of slowing down. Here’s a selection of recent quotes to get Nvidia bulls stampeding.

  • Taiwan Semiconductor (TSMC) CEO C.C. Wei: “We continue to observe extremely robust AI-related demand from our customers throughout the second half of 2024.” TSMC makes Nvidia’s AI chips.
  • Meta CEO Mark Zuckerberg: “It’s hard to predict how [AI] will trend multiple generations out into the futureBut at this point, I’d rather risk building capacity before it’s needed rather than too late.”
  • Nvidia CEO Jensen Huang: “Demand for Blackwell [Nvidia’s newest AI chips] is insane…Everybody wants to have the most, and everybody wants to be first.”

The bear case

I’d say the biggest risk is an unexpected slowdown in AI spending, driven by disappointing returns on investment in the technology. AI might disrupt many areas, but it won’t change the fundamental reality of business (companies need to make profits on their investments to deliver value for shareholders).

A slowdown would disproportionately impact Nvidia because the bulk of its sales are coming from a small handful of companies. The firm’s four largest customers now comprise over 40% of revenues.

This risk is heightened because of the stock’s sky-high price-to-sales (P/S) ratio of 37.

Pound cost averaging

I don’t think it would be utter madness for me to invest in Nvidia today, assuming I was taking a long enough view. But I’d do so cautiously given the high valuation. Even the world’s best companies can make for poor investments if bought at the wrong price.

Impulsive behaviour, particularly FOMO (fear of missing out), is an investor’s worst enemy. As Warren Buffett has said, “The stock market is a device for transferring money from the impatient to the patient.”

Nvidia is a volatile stock that can drop 50%+ in a few months. So, if I wanted to invest, I’d consider a pound-cost averaging strategy.

That is, I wouldn’t invest a one-off lump sum. Instead, I’d use pullbacks in the share price to build out my position over time.

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. Randi Zuckerberg, a former director of market development and spokeswoman for Facebook and sister to Meta Platforms CEO Mark Zuckerberg, is a member of The Motley Fool's board of directors. Ben McPoland has positions in Taiwan Semiconductor Manufacturing. The Motley Fool UK has recommended Alphabet, Amazon, Apple, Meta Platforms, Microsoft, Nvidia, Taiwan Semiconductor Manufacturing, and Tesla. 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

Can someone invest like Warren Buffett with a spare £500?

Christopher Ruane explains why an investor without the resources of billionaire Warren Buffett could still learn from his stock market…

Read more »

Investing Articles

Can these 2 incredible FTSE 250 dividend stocks fly even higher in 2026?

Mark Hartley examines the potential in two FTSE 250 shares that have had an excellent year and considers what 2026…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Is 45 too late to start investing?

Investing at different life stages can come with its own challenges -- and rewards. Our writer considers why a 45-year-old…

Read more »

Hand of person putting wood cube block with word VALUE on wooden table
Investing Articles

UK shares look cheap — but the market might be about to take notice

UK shares have traded at a persistent discount to their US counterparts. This can create huge opportunities, but investors need…

Read more »

Investing Articles

This FTSE 100 growth machine is showing positive signs for a 2026 recovery

FTSE 100 distributor Bunzl is already the second-largest holding in Stephen Wright’s Stocks and Shares ISA. What should his next…

Read more »

Investing Articles

I asked ChatGPT for the best FTSE 100 stocks to buy for passive income in 2026 and it said…

Paul Summers wanted to learn which dividend stocks an AI bot thinks might be worth buying for 2026. Its response…

Read more »

ISA Individual Savings Account
Investing Articles

Stop missing out! A Stocks and Shares ISA could help you retire early

Investors who don't use a Stocks and Shares ISA get all the risks that come with investing but with less…

Read more »

Investing Articles

Will Greggs shares crash again in 2026?

After a horrible 2025, Paul Summers takes a look at whether Greggs shares could sink even further in price next…

Read more »