Upgrades:
Amazon (AMZN) upgraded to Buy from Hold at Stifel, target $700
Downgrades:
Other:
Twitter (TWTR) reiterated at Buy at Canaccord Genuity, target lowered from $52 to $45
Twitter (TWTR) reiterated at Sector Perform at RBC Capital Mkts, target lowered from $47 to $41
DuPont (DD) reiterated at Sector Perform at RBC Capital Mkts, target lowered from $64 to $58