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

Check Point Software Technologies Ltd. (NASDAQ: CHKP) started as Market Perform at BMO.

Cigna Corp. (NYSE: CI) reiterated as top pick with Outperform rating and $59 target price at Credit Suisse.

ConAgra Foods Inc. (NYSE: CAG) reiterated Buy on Ralcorp deal with $33 target at BofA/ML.

Corning Inc. (NYSE: GLW) reiterated Buy with $20 target at Argus.

Green Mountain Coffee Roasters Inc. (NASDAQ: GMCR) reiterated Buy and raised target to $45 at Canaccord Genuity.

Idenix Pharmaceuticals Inc. (NASDAQ: IDIX) started as Buy with $7 target at Deutsche Bank.

LinkedIn Corp. (NYSE: LNKD) started as Neutral at Cowen.

Microchip Technology Inc. (NASDAQ: MCHP) cut to Underperform as Bear of the Day at Zacks.

Nabors Industries Ltd. (NYSE: NBR) raised to Buy at Deutsche Bank.

Pandora Media Inc. (NYSE: P) started as Neutral at Cowen.

Pioneer Energy Services Corp. (NYSE: PES) raised to Buy with $10 target at Deutsche Bank.

Rowan Companies PLC (NYSE: RDC) reiterated Outperform but lowered target to $45 at Credit Suisse, as well as cut to Hold at Deutsche Bank.

Royal Caribbean Cruises Ltd. (NYSE: RCL) raised to Outperform as Bull of the Day at Zacks.

SunTrust Banks Inc. (NYSE: STI) reiterated Buy with $35 target at Argus.

Synopsys Inc. (NASDAQ: SNPS) reiterated Buy with $38 target at BofA/ML.

UnitedHealth Group Inc. (NYSE: UNH) reiterated Outperform with $59 target at Credit Suisse.

Veolia Environnement S.A. (NYSE: VE) raised to Overweight at HSBC.

Vertex Pharmaceuticals Inc. (NASDAQ: VRTX) cut to Hold at Argus.

Vodafone PLC (NASDAQ: VOD) started as Outperform at Baird.

JON C. OGG

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