UPGRADES:
* Facebook (FB) to buy: Capstone
* Markel (MKL) to market perform: Keefe Bruyette
* Prosperity Bancshares (PB) to outperform: BMO Capital
* Ross Stores (ROST) to buy: BofA Merrill
* Statoil (STO) to top pick: RBC Capital
DOWNGRADES:
* AstraZeneca (AZN) to underweight: JPMorgan
* Aastrom Biosciences (ASTM) to neutral: Roth Capital
* Aeolus Pharmaceuticals (AOLS) to neutral: Roth Capital
* Armstrong World (AWI) to equalweight: Barclays
* Biovest Intl (BVTI) to neutral: Roth Capital
* Bebe Stores (BEBE) to neutral: Janney Capital
* CapitalSource (CSE) to neutral: Janney Capital
* L-3 Communications (LLL) to underweight: BB&T Capital
* Pharmacyclics (PCYC) to neutral: Roth Capital
* Public Storage (PSA) to underperform: RBC Capital
* RDA Microelectronics (RDA) to neutral: UBS
* Stem Cells (STEM) to neutral: Roth Capital
* Stanley Black & Decker (SWK) to equalweight: Barclays
* Telefonica (TEF) to underperform: Bernstein
* Wintrust Financial (WTFC) to market perform: Keefe Bruyette
* Yanzhou Coal Mining (YZC) to sell: Deutsche Bank
* Zagg (ZAGG) to neutral: Janney Capital
INITIATIONS:
* Chuy’s (CHUY) hold: Jefferies
* Chuy’s (CHUY) market perform: Raymond James
* Chuy’s (CHUY) outperform: Robert Baird
* E2open (EOPN) buy: Canaccord Genuity
* E2open (EOPN) outperform: William Blair
* Hyperion Therapeutics (HPTX) buy: Needham
* Natural Grocers (NGVC) overweight: Piper Jaffray
* Natural Grocers (NGVC) buy at Canaccord Genuity
* Natural Grocers (NGVC) buy at Suntrust Robinson