Tesla shares moved lower in mid-day Monday trading, extending their 2025 decline well past 10%, as investors continue to fret about the time and attention that Elon Musk is devoting to his efforts as a key adviser to President Donald Trump.

Key Takeaways Tesla shares fell again Monday and are now down 18% so far in 2025.The stock has continued to trend lower after breaking down below the 50-day moving average and neckline of a head and shoulders pattern earlier this month.

Entering Monday, the EV maker’s shares were off almost 30% from their all-time closing high of about $480 on Dec. 17.