Ratings on (WBMD) (TSN) (AES) (LECO) (QIHU) (S) Upgraded

Ratings on shares of Webmd Health Corp (NASDAQ: WBMD), Tyson Foods, Inc. (NYSE: TSN), The Aes Corporation (NYSE: AES), Lincoln Electric Holdings Inc (NASDAQ: LECO), Qihoo 360 Technology (NASDAQ: QIHU) and Sprint Nextel (NYSE: S) were upgraded by analysts.

Citigroup (NYSE:C) upgraded The Aes Corporation (AES) from a “hold” rating to a “buy” rating. They have a price target of $16.00 on the company, up from $14.00.

Longbow Research upgraded Lincoln Electric Holdings Inc (LECO) from a “neutral” rating to a “buy” rating. They have a price target of $92.00 on the company.

Stifel Nicolaus upgraded Qihoo 360 Technology (QIHU) from a “hold” rating to a “buy” rating. They have a price target of $38.00 on the company.

Piper Jaffray (NYSE:PJC) upgraded Sprint Nextel (S) from a “neutral” rating to an “overweight” rating. They have a price target of $6.50 on the company.

Keybanc upgraded Tyson Foods, Inc. (TSN) from a “hold” rating to a “buy” rating. They have a price target of $23.00 on the company.

Goldman Sachs (NYSE:GS) upgraded Webmd Health Corp (WBMD) to a “buy” rating. They have a price target of $60.00 on the company.