Xerox ( XRX) upgraded at Brean Murray from Hold to Buy. $10.25 price target. Company can expand margins and exceed expectations heading into 2010. Yahoo! ( YHOO) upgraded at Merrill/BofA to Buy from Neutral as sentiment and valuation near bottom. 2009 and 2010 EPS estimates set at $0.59 and $0.61, respectively. Price target raised to $19 from $17.