It has been about a month since the last earnings report for Discover (DFS) . Shares have added about 0.4% in that time frame, underperforming the S&P 500.Will the recent positive trend continue leading up to its next earnings release, or is Discover due for a pullback? Before we dive into how investors and analysts have reacted as of late, let's take a quick look at its most recent earnings report in order to get a better handle on the important catalysts. Discover Financial Q1 Earnings Miss on High CostsD ...