KEY POINTS
  • Tesla has shown it presents a significant risk to legacy automakers, Oppenheimer analyst Colin Rusch said.
  • "Tesla has really proven to be an existential threat for those companies," Rusch said. 
  • Rusch became the biggest Tesla bull on Wall Street, raising his price target by nearly 60% to $612.

Tesla has shown it presents a significant risk to legacy automakers as the electric vehicle market grows more crowded, Oppenheimer analyst Colin Rusch told CNBC on Monday.

Rusch became the biggest Tesla bull on Wall Street earlier in the day, when he raised his price target on the stock by nearly 60% to $612 per share.