Early Movers: MDT, ODP, OMX & More By: CNBC.com News February 19, 2013 at 07:50 AM EST These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: Apple Barclays Plc ADR Best Buy Carnival Corp ConAgra Foods Express Scripts Holding GNC Holdings Inc Goldman Sachs Group Google, Inc. Herbalife Ltd JPMorgan Chase & Co MGM Resorts International McDonald's Corp Microsoft Monsanto Co Novartis Ag ADR Wynn Resorts Yahoo