The real estate disruptor has delivered strong results, but its stock isn't performing well. Here's why.Real estate technology company Opendoor (OPEN -1.87%) reported second-quarter results that exceeded the high end of management's expectations in all key areas, but the stock declined. In this video, Fool.com contributors Matt Frankel and Tyler Crowe discuss the latest results, why Opendoor's stock has done so poorly, and what investors should keep in mind.*Stock prices used were the morning prices of Aug. ...