Does tech eat non-tech, or do a handful of heavily invested companies selling at a loss beat out people who don't do that? Looking at the top 10 companies, three are in tech, tied with American Healthcare. 2 are finance, 2 are O&G. The internet fundamentally changed how companies do business, but really, what makes Uber a tech company -- their app? They don't sell their app. Anyone can have an app nowadays. They're a taxi company with a large network and good name recognition, and that's their key benefit.