Ratings on (QCOR) (SPWRA) (TNGN) (VTRO) Downgraded

Ratings on Questcor Pharmaceuticals, Inc. (NASDAQ: QCOR), SunPower Co. (NASDAQ: SPWRA), Tengion (NASDAQ: TNGN) and Vertro Inc (NASDAQ: VTRO) were downgraded by analysts.

Citadel Securities downgraded Questcor Pharmaceuticals, Inc. (QCOR) from a “buy” rating to a “neutral” rating.

ThinkEquity downgraded SunPower Co. (SPWRA) from a “buy” rating to a “hold” rating.

Leerink downgraded Tengion (TNGN) to a “market perform” rating.

Craig Hallum downgraded Vertro Inc (VTRO) to an “accumulate” rating.