Early movers: CMCSA, HUM, ACN, ENR, ADT & more By: CNBC.com News July 31, 2013 at 07:53 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: ADT Corp AFLAC Accenture Plc Air Products & Chemicals Amgen Apple Booz Allen Hamilton Holding Corp Comcast Corp Comcast Corp Delphi Automotive Plc Facebook Garmin Ltd Genworth Financial Humana Hyatt Hotels Corp Iac Inc Sodastream Int Ltd Symantec Corp Take-Two Interactive