Why Is DexCom (DXCM) Down 7% Since Last Earnings Report?

It has been about a month since the last earnings report for DexCom (DXCM) . Shares have lost about 7% in that time frame, underperforming the S&P 500.But investors have to be wondering, will the recent negative trend continue leading up to its next earnings release, or is DexCom due for a breakout? Before we dive into how investors and analysts have reacted as of late, let's take a quick look at the latest earnings report in order to get a better handle on the important catalysts.DexCom Q2 Earnings Beat & ...