NEW YORK ( TheStreet) -- CHANGE IN RATINGSAmerican Eagle ( AEO) was upgraded at Wedbush from Neutral to Outperform. $22 price target. Positive store checks suggest that higher sales and margins are around the corner, Wedbush said. Accretive Health ( AH) was downgraded at UBS to Neutral from Hold. $11 price target. Possibly more issues lurking around the corner, UBS said. Alere ( ALR) was upgraded at Leerink Swann to Outperform from Market Perform. $28-$30 valuation range. Attractive upside potential, Leerink Swann said. Abercrombie & Fitch ( ANF) was upgraded to Buy from Neutral at UBS. $66 price target. Trend stabilization and favorable risk/reward, UBS said. Cardtronics ( CATM) was upgraded at Piper Jaffray from Neutral to Overweight. $32 price target. Company is posting higher sales growth, Piper Jaffray said. Cavium Networks ( CAVM) was upgraded at Mizuho from Neutral to Buy. $35 price target. Business fundamentals are improving, Mizuho said. Costco ( COST) was downgraded at Deutsche Bank to Hold. Valuation call, based on an $89 price target, Deutsche Bank said. ExactTarget ( ET) was initiated with a Buy rating at Canaccord Genuity. $32 price target. Company has a broad product portfolio that addresses a big market opportunity, Canaccord said. Haemonetics ( HAE) was upgraded at Morgan Stanley from Underweight to Equal-Weight. Visibility is improving and the Pall purchase can drive long-term growth, Morgan Stanley said. Hologic ( HOLX) was downgraded at Dougherty to Neutral. $20 price target. GPRO acquisition is unimpressive, Dougherty said. McKesson ( MCK) was downgraded at Auriga USA from Buy to Hold. Valuation call, based on a $98 price target, Auriga USA said. Schnitzer Steel ( SCHN) was initiated with a Hold rating at Keybanc. Company lacks near-term catalysts, Keybanc said. Vantiv ( VNTV) was initiated with a Neutral rating at Goldman Sachs. Valuation call, based on a $23 price target. Vantiv was initiated with a Buy rating at Deutsche Bank. $26 price target. New merchant wins are driving organic growth, Deutsche Bank said. WMS Industries ( WMS) was upgraded at Credit Suisse from Neutral to Outperform. $27 price target. Estimates also boosted, as management is turning the business around, Credit Suisse said.