Analyst Upgrades and Downgrades for Dec. 14 (V, AOL, RSH, XOM)

visaVisa (NYSE:V) upgraded to Outperform from Neutral at RW Baird...Autoliv (NYSE:ALV) upgraded to Neutral from Underperform at RW Baird...Littelfuse (NASDAQ:LFUS) upgraded to Outperform from Neutral at RW Baird...AOL (NYSE:AOL) initiated with an Underperform at Credit Suisse...Philip Morris (NYSE:PM) upgraded to Conviction Buy from Buy at Goldman...Brookdale Senior Living (NYSE:BKD) upgraded to Conviction Buy from Buy at Goldman...Meritage (NYSE:MTH) downgraded to Buy from Conviction Buy at Goldman...PPD, Inc. (NASDAQ:PPDI) upgraded to Buy from Hold at Jefferies...Umpqua Holding (NASDAQ:UMPQ) initiated with an Overweight at JP Morgan...Trustmark (NASDAQ:TRMK) upgraded to Outperform from Market Perform at Keefe Bruyette...Markel (NYSE:MKL) downgraded to Underperform from Market Perform at Keefe Bruyette...RadioShack (NYSE:RSH) upgraded to Overweight from Equal Weight at Barclays...PMC Sierra (NASDAQ:PMCS) downgraded to Equal Weight from Overweight at Barclays...Newfield Exploration (NYSE:NFX) upgraded to Overweight from Equal Weight at Barclays...China XD Plastics (NASDAQ:CXDC) initiated with a Buy at Merriman...Finisar (NASDAQ:FNSR) upgraded to Overweight from Neutral at Piper Jaffray...Exxon Mobil (NYSE:XOM) upgraded to Buy from Hold at Societe Generale...Portland General (NYSE:POR) downgraded to Market Perform from Outperform at Wells Fargo...Thoratec (NASDAQ:THOR) downgraded to Market Perform from Outperform at Wells Fargo...