NEW YORK ( TheStreet) -- CHANGE IN RATINGS Bruker ( BRKR) downgraded at BofA/Merrill from Buy to Underperform, Bank of America/Merrill Lynch said. Margin expansion could take longer than expected. $13.50 price target. Chesapeake Energy ( CHK) downgraded at Brean from Buy to Hold, Brean Murray said. Company is leveraged to lower natural gas prices. Cree ( CREE) downgraded at Ticonderoga from Buy to Neutral, Ticonderoga said. Company is seeing lower margins and lacks sales visibility. Cree upgraded at ThinkEquity from Hold to Buy, ThinkEquity said. $30 price target. Valuation call, based on a $30 price target. Cash America ( CSH) downgraded at FBR from Outperform to Market Perform, FBR Capital Markets said. $50 price target. Company is facing higher credit costs and narrower margins. DirecTV ( DTV) downgraded at UBS to Neutral from Buy, UBS said. $46 price target. Subscriber growth likely to slow. Edwards Lifesciences ( EW) rated new Buy at ThinkEquity. $100 price target. Sapien catheter should drive near-term growth. Expedia ( EXPE) rated new Underweight at JP Morgan. $31 price target. Company is facing increased competition. Guess ( GES) downgraded at Piper from Overweight to Neutral, Piper Jaffray said. $29 price target. Company faces currency headwinds. Google ( GOOG) downgraded at Wells from Outperform to Market Perform, Wells Fargo said. Company faces several potential growth headwinds. Hudson City Bancorp ( HCBK) downgraded at BofA/Merrill from Neutral to Underperform, Bank of America/Merrill Lynch said. Stock appears fully valued at current levels. Kroger ( KR) downgraded at BMO from Outperform to Market Perform, BMO Capital said. Valuation call, based on a $25 price target. Lennox ( LII) downgraded at Keybanc from Buy to Hold, Keybanc said. Mild weather is hurting HVAC demand. MGM Resorts ( MGM) upgraded at Credit Suisse from Underperform to Neutral, Credit Suisse said. $13 price target. Strip activity is showing steady gains. Mohawk Industries ( MHK) downgraded at JP Morgan from Overweight to Neutral, JP Morgan said. Valuation call, based on a $63 price target. People's United ( PBCT) downgraded at BofA/Merrill from Neutral to Underperform, Bank of America/Merrill Lynch said. Company faces earnings headwinds in the new year. PVH ( PVH) rated new Neutral at Credit Suisse. $72 price target. Company remains highly leveraged to declining department store traffic.