Early movers: PBY, CSCO, RIG, WFM, GRUB & more By: CNBC.com News December 29, 2015 at 07:41 AM EST These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Cisco Systems Freeport-McMoRan Grubhub Ord Shs Honeywell International Transocean Ltd Whole Foods Market