Upgrades:
Downgrades:
Amazon.com (AMZN) downgraded to Neutral from Buy at B. Riley & Co.
Amazon.com (AMZN) downgraded to Mkt Perform from Outperform at Raymond James
General Motors (GM) downgraded to Outperform from Buy at Credit Agricole
Barrick Gold Corp (ABX) downgraded to Underweight from Neutral at HSBC Securities
Exxon Mobil (XOM) downgraded to Underweight from Equal Weight at Barclays
Other:
Twitter (TWTR) initiated with a Mkt Perform at Raymond James
Starbucks (SBUX) target raised to $88 from $84 at Jefferies