Shares of Tesla have tumbled around 15% on a disappointing quarter, and SpaceX has fallen 50% from its highs.

Tesla missed second-quarter earnings estimates and the stock was down early Thursday. Wall Street remains firmly focused on the future, though.

So it seems that as Tesla chased volume, delivering 480,126 vehicles, a 25% increase from the same period a year ago, it sacrificed margins to get there. Net income for the quarte ...

Samuel O'Brient is an experienced financial markets and business journalist who has written extensively on a wide range of topics involving economics, technology and public policy. At Business Insider ...