It has been about a month since the last earnings report for Southwest Gas (SWX) . Shares have lost about 2.1% in that time frame, outperforming the S&P 500.Will the recent negative trend continue leading up to its next earnings release, or is Southwest Gas due for a breakout? Well, first let's take a quick look at its latest earnings report in order to get a better handle on the recent catalysts for Southwest Gas Corporation before we dive into how investors and analysts have reacted as of late.Southwest G ...