The launch of a $25,000 autonomous vehicle would be a huge inflection point for Tesla's recently stagnating growth. And according to many estimates, a robotaxi service could add hundreds of billions of dollars to the company's valuation. The problem is that Tesla's already priced at a premium, trading at 9.4 times sales even after the correction.

What Happened? Shares of electric vehicle pioneer Tesla (NASDAQ:TSLA) jumped 10.4% in the afternoon session after the National Highway Traffic Safety Administration (NHTSA), rolled out new rules to speed up the launch of home-built self-driving cars.