One of Them Is Palantir)

There are several popular artificial intelligence (AI) stocks on the market that I believe are currently poor investments. One of them is Palantir (NASDAQ: PLTR), which has been one of the best-performing stocks over the past few years. The others are C3.ai (NYSE: AI) and BigBear.ai (NYSE: BBAI).

I have solid reasons why investors should steer clear of this trio, as investing your money elsewhere can save you from a massive future loss.

Palantir’s stock has been on an unbelievable run. It’s up 2,570% since 2023, 900% since 2024, and 126% this year. With that kind of growth, investors may think I’m advocating for avoiding it because it’s run out of steam, but that’s not the case at all.

Palantir is performing exceptionally well, and its revenue growth is accelerating rapidly. In Q2, companywide revenue rose 48% compared to 39% growth in Q1. I believe Palantir will continue to grow rapidly and remain among the best-performing companies in the AI arms race.

If I think it will be a top-performing company, why am I not bullish on the stock? It all comes down to valuation.

Even though Palantir’s stock has increased by 2,570% since 2023, its revenue has risen by only 80%. That’s a huge mismatch, indicating that the stock has achieved most of its gains through an increase in its valuation. Looking at its valuation supports this analysis, as it trades for a jaw-dropping 267 times forward earnings and 126 times sales.

Those are valuation levels that few companies ever achieve and no company sustains. Palantir will either need to grow into those valuations (resulting in a flat stock price) or fall dramatically to trade at a more reasonable level.

Take Nvidia, for example. Despite multiple quarters in a row where it rippled its revenue year over year, it never traded for more than 50 times sales or forward earnings. Palantir is growing much slower than that, yet it has attained a valuation far higher than Nvidia ever did.

Regardless of what happens, I’d expect Palantir’s stock to be flat over the next few years, even if the company maintains a strong growth rate. There are years of growth already baked into Palantir’s stock, and investors would be wise to take some of those gains and invest in other, more reasonably valued companies.

We’re in the golden age of AI, and any company associated with the trend should be doing well. However, that’s not the case with these two.

Both companies are struggling, and actually delivered falling revenue in the past quarter.

Given the high demand for AI by nearly every business in the U.S., it shouldn’t be difficult to achieve at least positive revenue growth. Since both have negative growth, it’s fairly obvious that their respective competitors offer better products and services, and are likely attracting clients away from these two.

If these two can’t grow revenue right now when market conditions are optimal, what will happen five years later when the massive AI spending boom is potentially complete? These two aren’t worth your time, and if you have them, I’d consider selling shares to move to more attractive investments.

There are plenty of promising AI companies available to invest in, and these three are not among them. There are also several AI exchange-traded funds (ETFs) that already hold some of the top AI companies, which could be another solid investment option.

Before you buy stock in Palantir Technologies, consider this:

The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and Palantir Technologies wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years.

Consider when Netflix made this list on December 17, 2004… if you invested $1,000 at the time of our recommendation, you’d have $662,520!* Or when Nvidia made this list on April 15, 2005… if you invested $1,000 at the time of our recommendation, you’d have $1,043,346!*

Now, it’s worth noting Stock Advisor’s total average return is 1,056% — a market-crushing outperformance compared to 188% for the S&P 500. Don’t miss out on the latest top 10 list, available when you join Stock Advisor.

See the 10 stocks »

*Stock Advisor returns as of September 15, 2025

Keithen Drury has positions in Nvidia. The Motley Fool has positions in and recommends Nvidia and Palantir Technologies. The Motley Fool recommends C3.ai. The Motley Fool has a disclosure policy.

3 Popular Artificial Intelligence (AI) Stocks to Steer Clear Of. (Hint: One of Them Is Palantir) was originally published by The Motley Fool