Tesla shares can’t stop sliding. The stock sank 6.3% to $328.50 Tuesday and was the day’s worst performer on the Nasdaq 100. It was Tesla’s lowest close since Nov. 15 and its fifth consecutive day of falling.

Tesla (NASDAQ: TSLA) stock has been in freefall, and that accelerated today. Shares of the electric vehicle (EV) leader are now lower by more than 15% so far this year. As of 1:40 p.m. ET, Tesla shares were down by 5.

What Happened? Shares of electric vehicle pioneer Tesla (NASDAQ:TSLA) fell 5.2% in the afternoon session after Chinese electric vehicle manufacturer, BYD, unveiled "DiPilot," an assisted driving system (like a smart co-pilot or an extra pair of eyes while driving) that will integrate AI features from DeepSeek (Chinese AI Startup).