NEW YORK ( TheStreet) -- CHANGE IN RATINGSBoston Scientific ( BSX) was upgraded at JMP Securities to outperform from market perform. $9 price target. Company is on the cusp of a multiyear growth period, JMP said. Buenaventura Mining ( BVN) was downgraded to hold at TheStreet Ratings. Carbo Ceramics ( CRR) was upgraded to buy at TheStreet Ratings. Cinemark ( CNK) was downgraded at JP Morgan from overweight to neutral. $30 price target. Valuation call, as the stock is up 53% year to date, JP Morgan said. Deckers Outdoor ( DECK) was upgraded at Sterne Agee from neutral to buy. $65 price target. Business can turn by the second half of 2013, Sterne Agee said. Dell ( DELL) was upgraded at Goldman Sachs from sell to buy. $13 price target. Solid cash position should help place a floor on the stock, Goldman said. Edison International ( EIX) was downgraded at Bernstein Research to market perform. Valuation call, based on a $50 price target. Company faces potential growth headwinds, Bernstein said. Eaton Vance ( EV) was upgraded at Goldman Sachs to neutral from sell. $29.50 price target. Better flow outlook, but valuation still stretched, Goldman said. Finisar ( FNSR) was upgraded at Needham from hold to buy. $18 price target. Service provider spending should increase over the coming quarters for the company's new products, Needham said. International Game ( IGT) was upgraded at Deutsche Bank from hold to buy. $19 price target. Worst operating trends are likely behind the company, Deutsche Bank. Janus Capital Group ( JNS) was downgraded at Goldman Sachs to sell from neutral. $7 price target. Tougher flow outlook not priced in, Goldman said. Lululemon ( LULU) was initiated with a buy rating at Canaccord Genuity. $91 price target. Company is evolving beyond its athletic roots, Canaccord said. Occidental Petroleum ( OXY) was downgraded at Deutsche Bank from buy to hold. $80 price target. PartnerRe ( PRE) was downgraded at UBS to neutral from buy. $84 price target. Valuation call, UBS said. Bankrate ( RATE) was downgraded at Canaccord Genuity to hold. $14 price target. Company faces tough comps, Canaccord said. Regal Entertainment ( RGC) was downgraded at JP Morgan from overweight to neutral. Valuation call, as the stock is up 39% year to date, JP Morgan said. $17 price target.