Palantir Technologies has created one of the most dramatic stories on Wall Street this year, defying conventional investment narratives. In 2025, it became the top-performing stock in the S&P 500, surging over 106% and at points climbing 144% from the start of the year—outpacing even AI heavyweights like Nvidia.

Walmart’s adjusted earnings miss analysts’ estimates but second-quarter revenue tops forecasts. AI stock Palantir edges higher after closing down for six-straight sessions.

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.

Citron Research, the firm led by short-seller Andrew Left, unpacked its bear case for Palantir, using OpenAI to show why it may be highly overvalued.

Andrew Left argues that investors have overhyped Palantir stock, and its valuation pales in comparison to a true AI leader like OpenAI.

In recent days, Palantir's stock has been showing signs of slowing down. After hitting a new all-time high of $190 on Aug. 12, it has proceeded to trade lower. By Monday, the AI stock would close at just over $174 -- down 8% from its recent high.