Upgrades:
Downgrades:
Caterpillar (CAT) downgraded to Underperform from Neutral at Macquarie
General Motors (GM) downgraded to Sector Perform from Outperform at RBC Capital Markets
Microsoft (MSFT) downgraded to Underperform from Neutral at BofA/Merrill
Other:
Twitter (TWTR) target lowered to $45 from $55, maintain Buy at Evercore ISI