UPGRADES:
UBS upgrades Tenet Healthcare (NYSE: THC) from Sell to Neutral.

UBS upgrades Banco Santander (NYSE: STD) from Sell to Neutral.

UBS upgrades Frontline (NYSE: FRO) from Sell to Neutral.

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

DOWNGRADES:
Credit Suisse downgrades China Unicom (NYSE: CHU) from Neutral to Underperform.

UBS downgrades BCE (NYSE: BCE) from Buy to Neutral.

Caris & Co. downgrades OmniVision Technologies (Nasdaq: OVTI) from Buy to Average.

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

NEW COVERAGE:
Thomas Weisel initiates coverage on Cameco (NYSE: CCJ) with a Market Weight rating and a $22 price target.

Deutsche Bank reinstates coverage on BHP Billiton (NYSE: BHP) with