Rivian stock jumps 18% as AI and autonomy focus boosts sentiment

Shares of Rivian Automotive (NASDAQ:RIVN) climbed as much as 18% on December 12, 2025, as investors reacted to announcements around the company’s first Autonomy & AI Day event, which highlighted its shift toward in-house artificial intelligence and self-driving technology. Improved sentiment also followed analyst interest in Rivian’s strategic priorities and the launch of an AI-driven driver assistance package amid broader EV market positioning.