UPGRADES
Jefferies upgrades Callon Petroleum Co. (NYSE: CPE) from Underperform to Hold.

Endo Pharmaceuticals (Nasdaq: ENDP) upgraded by two today:

• Citi from Hold to Buy with a price target increased from $28 to $40; and

• Oppenheimer from Perform to Outperform, with a price target of $40.

Longbow Research upgrades Steelcase (NYSE: SCS) from Neutral to Buy, with an $11 price target.

BofA Merrill upgrades Siliconware Precision (Nasdaq: SPIL) from Underperform to Buy.

For daily real-time Upgrades go to http://www.streetinsider.com/Upgrades

DOWNGRADES
RBS downgrades AstraZeneca PLC (NYSE: AZN) from Buy to Hold.

Janney Montgomery Scott downgrades J. Crew Group, Inc. (NYSE: JCG) from Buy to Neutral.