Why Is Wabtec (WAB) Down 10.3% Since Last Earnings Report?

It has been about a month since the last earnings report for Westinghouse Air Brake Technologies (WAB) . Shares have lost about 10.3% in that time frame, underperforming the S&P 500.Will the recent negative trend continue leading up to its next earnings release, or is Wabtec 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 most recent earnings report in order to get a better handle on the important catalysts.How Have Estimates Been Mo ...