Upgrades:
Twitter (TWTR) upgraded to Buy from Hold at Stifel Research; target $34
Apple (AAPL) upgraded to Overweight from Sector Weight at Pacific Crest
Downgrades:
Other:
Twitter (TWTR) reiterated with a Sector Perform at RBC Capital; target lowered to $34 from $41
Twitter (TWTR) reiterated with a Buy at Pivotal Research; target $43
Apple (AAPL) target raised to $179 from $172 at Piper Jaffray
DuPont (DD) target raised to $65 from $62 at RBC Capital Mkts