Key Takeaways NEM, PLTR, and GEV reflect the top-performing S&P 500 stocks in 2025. Robust quarterly results have led the surge, which have stemmed from favorable operating environments. All three sport bullish near-term EPS outlooks thanks to the strong quarterly results. It’s been another great year for stocks so far, with the resilience notable given tariff-induced fears among other economic concerns.And leading the pack for the S&P 500 this year is none other than AI-favorite Palantir (PLTR) , energy ti ...