Companies releasing earnings this week include: Adobe Systems ( ADBE ) on Tuesday, Jabil Circuit (JBL) on Wednesday, Kroger (KR) on Thursday, and Darden Restaurants (DRI) on Friday. Some of the most actively traded stocks include Covidien ( COV ) higher by 20.75%, Medtronic ( MDT ) down 1.2%, Fusion-io ( FIO ) up 23% and Bank of America ( BAC ) down 1%. In economic news, Housing Starts, Building Permits and CPI come out tomorrow, and Initial Claims on Thursday.