Upgrades:
Chevron (CVX) upgraded to Buy from Neutral at BofA/Merrill
Altria (MO) upgraded to Buy from Neutral at BofA/Merrill
Downgrades:
Other:
UnitedHealth (UNH) initiated with an Overweight at Piper Jaffray
McDonald's (MCD) target lowered to $137 from $139 at Instinet