A month has gone by since the last earnings report for MKS Instruments (MKSI) . Shares have added about 1.4% in that time frame, underperforming the S&P 500. Will the recent positive trend continue leading up to its next earnings release, or is MKS Instruments due for a pullback? 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 drivers. MKS Instruments Q1 Earnings Top Estimates, ...