UP:
Hess (HES) +4.94% - Following news that Co. will pursue sale of terminal network and exit refining.
Waste Management (WM) +4.01% - High volume.
Western Union (WU) +3.10% - Positive Seeking Alpha article and rated new buy at Standpoint Research, price target USD 19.00.
Biogen (BIIB) +2.86% - Positive earnings.
Chipotle Mexican Grill (CMG) +2.81% - Upgraded to buy from hold at Lazard Capital.

DOWN:
PetSmart (PETM) -6.57% - Downgraded to reduce from neutral at Nomura.
South Western Energy (SWN) -4.01%
Whirlpool (WHR) -3.51%
PPG Industries (PPG) -3.20% - Tendered 72.1mln shares.
Chesapeake Energy (CHK) -3.20% - Negative articles regarding Co.’s 2012 performance and moving from gas to oil.