These are some of the top analyst upgrades, downgrades and initiations seen in Wall St. research calls this Monday.

Aeropostale Inc. (NYSE: ARO) cut to Neutral at Janney Capital.

AK Steel Holding Corp. (NYSE: AKS) raised to Neutral at UBS.

Best Buy Co. (NYSE: BBY) named Bear of the Day at Zacks.

BHP Billiton PLC (NYSE: BHP) started as Buy at Goldman Sachs.

BP PLC (NYSE: BP) started as Outperform at BNP Paribas.

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

Cooper Tire & Rubber Co. (NYSE: CTB) named Bull of the Day at Zacks.

Deere & Co. (NYSE: DE) reiterated Buy with $93 target at Argus.

Exelon Corp. (NYSE: EXC) raised to Buy at Deutsche Bank.

Facebook Inc. (NASDAQ: FB) raised to Outperform at BofA/ML.

Heartware International Inc. (NASDAQ: HTWR) maintained Outperform but cut target to $99 at Credit Suisse.

Knight Capital Group Inc. (NYSE: KCG) raised to Market Perform at KBW.

McDonald’s Corp. (NYSE: MCD) cut to Neutral at Lazard.

Mistras Group Inc. (NYSE: MG) raised to Buy at BofA/ML.

Research In Motion Ltd. (NASDAQ: RIMM) raised to Sector Outperform at CIBC.

SanDisk Corp. (NASDAQ: SNDK) started as Outperform with $50 target at Credit Suisse.

RIO Tinto PLC (NYSE: RIO) started as Neutral at Goldman Sachs.

Wesco Aircraft Holdings Inc. (NYSE: WAIR) cut to Underperform at BofA/ML.

Yahoo! Inc. (NASDAQ: YHOO) added to Conviction Buy List at Goldman Sachs.

JON C. OGG

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