Early movers: COST, WBA, AA, ZNGA, PHM & more By: CNBC.com News April 09, 2015 at 08:02 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Alcoa Apache Corp Apple Bed Bath & Beyond Brookfield Asset Management Constellation Brands Costco Wholesale Dunkin' Brands Group JPMorgan Chase & Co L Brands Microsoft Pier 1 Imports PulteGroup Walgreens Boots Alliance Walt Disney Zumiez Inc Zynga Inc Cl A