Palantir (NASDAQ:PLTR) has shed $73 billion in market cap over just six sessionsits worst streak this year. The stock has fallen 17% since its August 12 high, briefly bouncing in Thursday trading before settling into a volatile range.

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.