Cobalt (CIE) (RIMM) (SAM) (SSI) (CLMS) (CRR) Upgraded

Cobalt International Energy (NYSE: CIE), Research In Motion (NASDAQ: RIMM), The Boston Beer Company, Inc. (NYSE: SAM), Stage Stores (NYSE: SSI), Calamos Asset Management, Inc. (NASDAQ: CLMS) and Carbo Ceramics (NYSE: CRR) were upgraded by analysts.

Research In Motion (RIMM) was upgraded by ThinkEquity from a “Hold” rating to a “Buy” rating.

The Boston Beer Company, Inc. (SAM) was upgraded by Zacks Investment Research from a “Neutral” rating to an “Outperform” rating.

Stage Stores (SSI) was upgraded by Zacks Investment Research from an “Underperform” rating to a “Neutral” rating.

Cobalt International Energy (CIE) was upgraded by Goldman Sachs (NYSE:GS) from a “Neutral” rating to a “Buy” rating.

Calamos Asset Management, Inc. (CLMS) was upgraded by Zacks Investment Research from an “Underperform” rating to a “Neutral” rating.

Carbo Ceramics (CRR) was upgraded by Zacks Investment Research from a “Neutral” rating to an “Outperform” rating.