Top Analyst Upgrades & Downgrades (ATML, AEG, CNP, CHK, COCO, DYN, EM, NE, RIMM, TDC)

These are some of this Monday’s top analyst calls with upgrades, downgrades, and initiations seen from Wall Street research firms:

Atmel Corporation (NASDAQ: ATML) Cut to Market Weight at FBR.
AEGON NV (NYSE: AEG) Raised to Overweight at JPMorgan.
CenterPoint Energy, Inc. (NYSE: CNP) Started as Buy at BofA/Merrill Lynch.
Chesapeake Energy Corporation (NYSE: CHK) Raised to Outperform at BMO.
Corinthian Colleges Inc. (NASDAQ: COCO) Cut to Hold at Deutsche Bank.
Dynegy Inc. (NYSE: DYN) Raised to Neutral at Macquarie; Raised to Neutral at UBS.
Emdeon Inc. (NYSE: EM) Raised to Outperform at Wells Fargo.
Noble Corp. (NYSE: NE) Started as Neutral at Goldman Sachs.
Research in Motion Ltd. (NASDAQ: RIMM) Maintained negative at Goldman Sachs.
Teradata Corporation (NYSE: TDC) Started as Market Perform at William Blair.

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