Chicago Mercantile Exchange Holdings (NASDAQ:CME) is trading down almost $18 this morning after reporting EPS that was 7 cents short of analyst forecasts. On a percentage basis however, the stock is only down about 3%. The table below summarizes all EPS reports for CME since 2003. The lines highlighted in gray represent days when the stock gapped down more than 2%. Based on these results, the stock has generally traded higher from the open to close after gapping down on earnings.