http://fortune.com/2014/09/11/uber-vs-lyft-the-credit-cards-dont-lie/ http://fortune.com/2014/09/11/uber-vs-lyft-the-credit-cards-... I don't know. The numbers

http://fortune.com/2014/09/11/uber-vs-lyft-the-credit-cards-dont-lie/ http://fortune.com/2014/09/11/uber-vs-lyft-the-credit-cards-... I don't know. The numbers appear to disagree. That just shows a sample of their growth in the US, but according to reports the bulk of their growth is internationally. They are likely orders of magnitude larger than their closest competition and growing rapidly. Real money is going through that system. If they can find a way to leverage that user base and become a full-on logistics company they're probably undervalued.