Nvidia and Palantir Dominated 2025. Which Is the Best Artificial Intelligence (AI) Stock for 2026?

Each company looks to be headed into another year of unprecedented growth.Few stocks have been as successful as Palantir (PLTR +1.36%) and Nvidia (NVDA +1.37%) have been during the artificial intelligence (AI) arms race. Since 2023, Nvidia's stock is up 1,100%, and Palantir's is up nearly 2,300% (at the time of this writing). That's an impressive run in just under three years' time, but what they've each done in 2025 is also impressive. Palantir is up around 100% in 2025, while Nvidia is up over 30%. Both o ...