Early movers: TWTR, MSG, EBAY, GPRO & more By: CNBC.com News February 06, 2015 at 08:00 AM EST These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Activision Blizzard American Tower Corp A CME Group Dr. Pepper Snapple Group Expedia Frontier Communications Gopro Inc Cl A Gsk Plc ADR Harris Corp Marsh & McLennan Moody's Corp News Corporation Pandora Media Inc Sentinelone Inc Cl A Symantec Corp Tempur-Pedic International Inc Twitter, Inc. Verizon Communications Yelp Inc eBay