Bernstein downgrades Tesla and says the stock will tank 42% from its 'mind-boggling' valuation

· *Tesla shares are far too expensive to recommend after more than tripling in 2020, the Bernstein analyst Toni Sacconaghi wrote in a note.*
· *The firm lowered its Tesla stock rating to "underperform" from "market perform" on Tuesday and maintained a $900 price target, implying that shares will tumble 42% over the next...