Upgrades
- Facebook (FB) upgraded by Pivotal Research from Hold to Buy
- BT Group (BT) upgraded by UBS from Sell to Neutral
- DexCom (DXCM) upgraded by Sterne Agee from Neutral to Buy
- Alkermes (ALKS) upgraded by Mizuho from Neutral to Buy
- Akamai (AKAM) upgraded by B. Riley from Neutral to Buy
- WESCO (WCC) upgraded by UBS from Neutral to Buy
- Twitter (TWTR,FB) upgraded by Cantor from Sell to Hold
- AmerisourceBergen (ABC) upgraded by ISI Group from Neutral to Buy
- Premier (PINC) upgraded by ISI Group from Neutral to Buy
- Prospect Capital (PSEC) upgraded by Guggenheim from Neutral to Buy
- Liberty Global (LBTYA) upgraded by Goldman upgraded from Buy to Conviction Buy
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Downgrades
- Molson Coors (TAP) downgraded by Nomura from Buy to Neutral
- Imperva (IMPV) downgraded by Oppenheimer from Outperform to Perform
- CF Industries (CF) downgraded by Barclays from Overweight to Equalweight
- Cabot Oil & Gas (COG) downgraded by Stifel from Buy to Hold
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Upgrades & Downgrades provided by Theflyonthewall.com 
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