Early Movers: BIG, EMC, FB, CLWR, DISH, COST & More By: CNBC.com News May 30, 2013 at 07:36 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Alcoa Berkshire Hathaway Big Lots Costco Wholesale Dish Network Corp EMC Corp Express Scripts Holding Facebook First Solar Gsk Plc ADR Lockheed Martin Northrop Grumman O'Reilly Automotive Royal Caribbean Cruises Ltd The Priceline Group