Early movers: HPQ, UA, PCLN, WFM, GRPN, JPM & more By: CNBC.com News February 21, 2014 at 07:54 AM EST These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Amazon.com Comcast Corp Express Scripts Holding Groupon Cl A Hewlett-Packard JPMorgan Chase & Co Juniper Networks Marvell Technology Inc Nordstrom Seagate Technology Plc The Priceline Group Under Armour Whole Foods Market