Quick overview

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Palantir lost $73 billion in market value throughout its six-session losing streak, giving short sellers who bet against this year’s Wall Street powerhouse a rare victory after setting a record in August. 12, The data analysis and software company’s stock has dropped more than 17%.

This week is expected to be the worst for PLTR since the tariff saga in early April of this year, marking their longest losing run since April 2024.

According to data from S3 Partners LLC, short sellers have made over $1.6 billion in profits since the drop. S3 data indicates that traders have wagered $4.05 billion against Palantir this year, and that amount hardly scratches the surface.

After rising 106%, the stock remains the benchmark’s largest gainer for 2025, despite performing the worst in the S&P 500 Index over the last six sessions.

Short interest as a percentage of Palantir’s float, which indicates the number of shares available for borrowing and wagering, has decreased from almost 5% a year ago to roughly 2%. As the stock increased, this implies that short sellers covered their positions, according to Matthew Unterman, managing director of S3 Partners LLC.