Tesla stock falls 3%: here's what's dragging the stock down today

Tesla stock TSLA fell 3% on Tuesday, giving back part of its 5.5% gain from the previous session as investors reassessed the company's robo-taxi prospects and digested mixed vehicle registration data from Europe. Tesla shares were down 3.1% during Tuesday's session, compared with declines of about 0.5% for both the S&P 500 and Dow Jones Industrial Average.