Tesla valuation tops $1.5 trillion after gaining $900 billion since April 2025

On December 15 2025, Tesla's market capitalization climbed to about $1.5 trillion after adding roughly $900 billion in value since April 2025, with TSLA rising around 4% and trading just below its prior $488.54 high. The rally followed viral footage of Robotaxi trials in Austin without a safety driver and renewed optimism from analysts about Cybercab production in 2026 and wider rollout of Tesla's autonomous services. Strong reviews of the latest FSD release further supported expectations for an AI-driven revaluation of the company.