Early movers: HLT, ANTM, ETN, TWTR, GSK & more By: CNBC.com News July 29, 2015 at 07:54 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Akamai Technologies Altria Group Anthem Inc Chevron Corp Cigna Corp Citrix Systems Eaton Corp Plc Express Scripts Holding Garmin Ltd Genl Dynamics Gilead Sciences Gsk Plc ADR Hess Corp Microsoft Northrop Grumman Twitter, Inc. Yelp Inc