Advanced Micro ( AMD) downgraded at BofA to Sell. $5 price target. Company has lost its technology lead to INTC. Loss estimates also widened. Amazon.com ( AMZN) upgraded at Citigroup from Hold to Buy. Share price has consolidated since July, creating an attractive buying opportunity for a core Internet holding. $119 price target. Baker Hughes ( BHI) downgraded at JP Morgan from Overweight to Neutral. Estimates also cut because of a challenging rig count growth and the timing of emerging market profits. BJ's Wholesale ( BJ) downgraded at JP Morgan from Overweight to Neutral. Stock was up 27% last year, and is already pricing in positive changes made by the new CEO. Diamond Offshore ( DO) downgraded at Credit Suisse to Neutral from Outperform based on valuation and potential near-term earnings risk. Maintained $142 target price. FedEx ( FDX) downgraded at JP Morgan from Overweight to Neutral. Risks remain to the company's Ground contractor model. Goodyear Tire ( GT) coverage initiated at Goldman with a Neutral rating and $32 price target. See further margin expansion as turnaround continues to progress, but remain cautious due to challenging macroeconomic outlook as well as rising raw material prices. Hess ( HES) downgraded at UBS to Neutral rating from Buy. However, price target upped to $110 from $87. IAC/InterActive ( IACI) downgraded at Citigroup from Buy to Hold. $29 price target. Company is losing market share in its key businesses and has limited international exposure.