Palantir shares surged over 20% in extended trading Monday after reporting fourth-quarter earnings and revenue that exceeded Wall Street estimates. The software company projected higher-than-expected revenue for the first quarter and full year, surpassing analyst estimates. CEO Alex Karp attributed the growth to the company's role in AI, noting its momentum across commercial and government segments. The company expects U.S. commercial revenue to grow at least 54% in 2025. Palantir joined the S&P 500 and Nasdaq 100 last year and saw its stock climb 340% in 2024, fueled by the generative AI boom.