UBS upgrades Potash Corp. (NYSE: POT) from Neutral to Buy and moves its price target from $30 to $40. Click Here for more color.
SunTrust Robinson Humphrey raises CVS Caremark (NYSE: CVS) from Neutral to Buy with a price target of $110.
Bernstein boosts Aviva plc (NYSE: AV) from Market Perform to Outperform.
KeyBanc moves Medical Properties Trust (NYSE: MPW) from Underweight to Hold. Click Here for more color.
For daily real-time Upgrades go to http://www.streetinsider.com/Upgrades
DOWNGRADES
TD Securities trims Penn West Energy (NYSE: PWE) from Hold to Reduce with a price target