Palantir (PLTR) Stock After Hours Today (Dec. 18, 2025): Why It Jumped, Fresh Targets, and What to Watch Before Friday’s Open
Palantir Technologies closed Thursday at $185.67, up 4.7%, after trading between $181.51 and $187.33. Shares slipped to $185.07 in after-hours trading. The move followed a cooler-than-expected U.S. inflation report and a rebound in tech stocks, with volume at about 40 million shares. No major company-specific headlines drove the action ahead of Friday’s key derivatives expiration.