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Top Analyst Upgrades and Downgrades (AES, BBY, CZR, CX, CNP, CSIQ, CLWR, CEO, CCH, DELL, GSK, LPS, MOS, NGLS, TSL, ZNGA)

Source: Jon Ogg
These are the top analyst calls of upgrades, downgrades and initiations we have seen from Wall St. research calls this Wednesday morning.

AES Corp. (NYSE: AES) named Bear of the Day at Zacks.

Best Buy Co. Inc. (NYSE: BBY) cut to Underperform at Wedbush.

Caesars Entertainment Corp. (NASDAQ: CZR) started as Underweight at Barclays.

Cemex SAB (NYSE: CX) raised to Outperform at Credit Suisse.

CenterPoint Energy Inc. (NYSE: CNP) raised to Outperform at Wells Fargo.

Canadian Solar Inc. (NASDAQ: CSIQ) raised to Neutral at Lazard.

Clearwire Corp. (NASDAQ: CLWR) cut to Underperform at RBC.

CNOOC Ltd. (NYSE: CEO) cut to Hold at Deutsche Bank.

Coca-Cola Hellenic Bottling Co. SA (NYSE: CCH) cut to Neutral at Citigroup.

Dell Inc. (NASDAQ: DELL) maintained as Underperform and cut target to $11 from $14 at Credit Suisse.

GlaxoSmithKline PLC (NYSE: GSK) ut to Underweight at JPMorgan.

Lender Processing Services Inc. (NYSE: LPS) named Bull of the Day at Zacks.

The Mosaic Co. (NYSE: MOS) started as Buy at Stifel Nicolaus.

Targa Resources Partners LP (NYSE: NGLS) started as Buy at UBS.

Trina Solar Ltd. (NYSE: TSL) cut to Neutral at Lazard.

Zynga Inc. (NASDAQ: ZNGA) started as Neutral at Janney.

JON C. OGG