Palantir Stock (PLTR) Today: Nvidia Partnership, ‘Chain Reaction’ Launch and 2026 Price Forecasts After a 2,000% Run
Palantir shares traded near $178 on December 4, 2025, after unveiling a new AI infrastructure platform, Chain Reaction, with Nvidia and CenterPoint Energy as founding partners. The stock is up over 120% in 2025 but remains about 20% below its early-November high. Analysts warn of a possible crash at current valuations, with P/E ratios exceeding 400x.