It has been about a month since the last earnings report for Omnicom (OMC) . Shares have added about 5.6% in that time frame, underperforming the S&P 500. Will the recent positive trend continue leading up to its next earnings release, or is Omnicom 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. Omnicom Q1 Earnings and Revenues Beat Estimates Omn ...