NEW YORK ( TheStreet) -- CHANGE IN RATINGS BP ( BP) was upgraded to buy at TheStreet Ratings. CVS Caremark ( CVS) was downgraded at Cantor Fitzgerald to hold from buy. Valuation call, based on a $62 price target, Cantor said. Fiserv ( FISV) was upgraded at Sterne Agee to buy from neutral. $120 price target. Company should deliver higher internal sales growth this year, given better end-market conditions, Sterne Agee said. Fossil ( FOSL) was downgraded at Citigroup to neutral from buy. Based on valuation and despite global growth opportunity, said Citi. Price target goes to $135. MDR) was downgraded at DA Davidson to neutral from buy. $7.25 price target. Losses are broadening, DA Davidson said. Mead Johnson ( MJN) was upgraded at Credit Suisse to outperform from neutral. $90 price target. Company should benefit from competitor recalls, Credit Suisse said. Marathon Oil ( MRO) was downgraded at Bank of America/Merrill Lynch to neutral. Valuation call, based on a $42 price target, BofA/Merrill said. OneBeacon ( OB) was downgraded to hold at TheStreet Ratings. Yum! Brands ( YUM) was upgraded at Bank of America/Merrill Lynch to neutral from underperform. $79 price target. Market is more willing than expected to look through China issues, BofA/Merrill said.