Why Twitter Inc. (TWTR), Mylan NV (MYL) and GrubHub Inc. (GRUB) Are 3 of Today’s Worst Stocks By: InvestorPlace July 27, 2015 at 12:46 PM EDT Read More >> Related Stocks: Allergan Plc Grubhub Ord Shs Mylan Perrigo Teva Pharmaceutical Industries ADR Twitter, Inc.