Top Analyst Upgrades and Downgrades: Amazon, Brightcove, Exxon, GM, Mylan, Petrobras, Twitter and Many More
These are this Friday's top analyst upgrades, downgrades and initiations from Wall Street firms on Friday, July 25, 2015. They include Amazon.com, Brightcove, Exxon, GM, Mylan, Petrobras and Twitter.