Top Analyst Upgrades & Downgrades (AONE, ACM, ALXN, AEP, LFC, CLNE, COP, CVA, CREE, ENOC, FXCM, IRM, MET, NYX, PCLN, SD, LEDS, VLO, WFSL)

A123 Systems, Inc. (NASDAQ: AONE) Raised to Buy at BofA/ML.
AECOM Technology Corporation (NYSE: ACM) Raised to Buy at Argus.
Alexion Pharmaceuticals, Inc. (NASDAQ: ALXN) Kept at Buy but Removed from Conviction Buy List at Goldman Sachs.
American Electric Power Co., Inc. (NYSE: AEP) Raised to Buy at BofA/ML.
China Life Insurance Co. Ltd. (NYSE: LFC) Raised to Neutral at Credit Suisse.
Clean Energy Fuels Corp. (NASDAQ: CLNE) Cut to Underperform at BofA/ML.
ConocoPhillips (NYSE: COP) Reiterated Buy and $95 target at Argus.
Covanta Holding Corporation (NYSE: CVA) Raised to Buy at BofA/ML.
Cree Inc. (NASDAQ: CREE) Cut to Underperform at BofA/ML.
EnerNOC, Inc. (NASDAQ: ENOC) Cut to Underperform at BofA/ML.
FXCM Inc. (NYSE: FXCM) Cut to Sell at Citigroup.
Iron Mountain Inc. (NYSE: IRM) Started as Buy at Stifel Nicolaus.
MetLife Inc. (NYSE: MET) Reiterated Buy with $54 target at Argus.
NYSE Euronext Inc. (NYSE: NYX) Cut to Hold at Argus.
Priceline.com Inc. (NASDAQ: PCLN) Maintained Outperform as Bull of the Day at Zacks.
SandRidge Energy, Inc. (NYSE: SD) Started as Neutral at Baird; Started as Outperform at Morgan Keegan.
SemiLEDS Corporation (NASDAQ: LEDS) Cut to Underperform at BofA/ML.
Valero Energy Corporation (NYSE: VLO) Maintained Strong Buy as Value at Zacks.

Washington Federal Inc. (NASDAQ: WFSL) Cut to Underperform as Bear of the Day at Zacks.

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JON C. OGG