Tesla stock was rising in early trading Monday. Shares are heading for five consecutive days of gains as the electric vehicles maker builds on a great reaction this past week to a less-than-great earnings report.

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.

Tesla shares are regaining some ground today ahead of the company’s first-quarter earnings report, due after the close. After dropping nearly 6% on Monday, shares of the electric vehicle maker were up close to 5% Tuesday morning.