KEY POINTS
  • Tesla short seller Andrew Left of Citron Research reveals Tuesday he is now betting the stock will rise when the company reports earnings on Wednesday.
  • "Plain and simple – Tesla is destroying the competition," Left said in a blog post.
  • Left confirmed that he is still suing Tesla, despite changing his stock position.
Andrew Left, Citron Research

Tesla shares popped as a noted short seller, Andrew Left of Citron Research, said he is now betting on the stock ahead of the company's earnings report on Wednesday. Left's firm has held a short position on the stock for more than two years, and he confirmed he is still suing both Tesla and CEO Elon Musk.

The shares closed up 12.7 percent on the day at $294.14 a share, as the rest of technology-related stocks were under heavy pressure.