NEW YORK ( TheStreet) -- CHANGE IN RATINGS Air T ( AIRT) downgraded to hold at TheStreet Ratings. American International ( AIG) rated new Buy at Sterne Agee. $39 price target. Company can exceed consensus earnings expectations. Autozone ( AZO) upgraded at Deutsche from Hold to Buy, Deutsche Bank said. $425 price target. Company can gain market share and expand its margins. Baker Hughes ( BHI) downgraded to hold at TheStreet Ratings. Cognizant ( CTSH) downgraded at Goldman to Sell, Goldman Sachs said. Company has high exposure to the financial sector and trades at a relative premium. $52 price target. Dow Chemical ( DOW) downgraded at JP Morgan from Overweight to Neutral, JP Morgan said. Company is the most expensive of its peers and also likely has the highest earnings risk. $36 price target. eBay ( EBAY) rated new Buy at Needham. $50 price target. Marketplace business can grow faster than consensus estimates. Edwards Lifesciences ( EW) downgraded at UBS to Neutral from Buy, UBS said. $107 price target. Valuation call. Lender Processing ( LPS) upgraded at Goldman to Buy, Goldman Sachs said. $27 price target. Company should benefit from increased loan and foreclosure volume. Morgan Stanley ( MS) downgraded at Goldman Sachs to Neutral from Buy, Goldman Sachs said. $16 price target. Outsized capital market overhangs. Pitney Bowes ( PBI) upgraded at Goldman to Neutral, Goldman Sachs said. 10% dividend yield should provide support for the stock. Public Service Enterprise ( PEG) downgraded at Jefferies to Hold from Buy, Jefferies said. $32 price target. Loss of the basis differential between New Jersey and PJM West. Hold rating. Sapient ( SAPE) downgraded at Goldman to Sell, Goldman Sachs said. Company has high exposure to the financial sector and Europe. $9 price target. Southwestern Energy ( SWN) upgraded at Citigroup to Buy from Neutral, Citigroup said. $38 price target. More constructive outlook for natural gas prices next year. Stryker ( SYK) rated new Hold at Cantor. $56 price target. Growth already appears reflected in the stock. Tronox ( TROX) rated new Buy at UBS. $145 price target. Exxaro acquisition is the capstone of new Tronox Limited. ValueClick ( VCLK) downgraded at Piper from Overweight to Neutral, Piper Jaffray said. $15 price target. Company will be hurt as more impression buying is moving to online exchanges.