Top Analyst Upgrades & Downgrades (CATM, CLNE, ENOC, GFI, HAL, HUM, FSLR, WFR, MYL, POT, SINA, RNWK, WDC)

These are some of this Friday’s top analyst upgrades and downgrades seen from Wall Street research calls:

Cardtronics Inc. (NASDAQ: CATM) Started as Neutral at UBS.
Clean Energy Fuels Corp. (NASDAQ: CLNE) Cut to Underperform at National Bank.
EnerNOC, Inc. (NASDAQ: ENOC) Started as Outperform at Wells Fargo.
Gold Fields (NYSE: GFI) Started as Sell at Citigroup.
Halliburton Company (NYSE: HAL) Cut to Market Perform at FBR.
Humana Inc. (NYSE: HUM) Raised to Market Perform at BMO.
First Solar, Inc. (NASDAQ: FSLR) Reiterated Buy and raised target to $175 at Auriga.
MEMC Electronic Materials Inc. (NYSE: WFR) Cut to Sell at Wunderlich.
Mylan, Inc. (NASDAQ: MYL) Cut to Perform at Oppenheimer.
Potash Corp. of Saskatchewan (NYSE: POT) Raised to Buy and $124 target at Citigroup; target raised to $120 at UBS.
Sina Corp. (NASDAQ: SINA) Started as Outperform at Macquarie.
RealNetworks (NASDAQ: RNWK) Cut to Market Perform at Morgan Keegan.
Western Digital Corp. (NYSE: WDC) Cut to Underperform at First Global.

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