Early movers: GMCR, BHI, SHLD, LO, TWTR, TM & more By: CNBC.com News March 17, 2014 at 07:52 AM EDT These are the stocks posting the largest moves before the bell. Read More >> Related Stocks: American Electric Power American Electric Technologies Inc Baker Hughes Inc Berkshire Hathaway Biogen Idec Credit Suisse Group Credit Suisse Group ADR EnCana Corporation GNC Holdings Inc GX Defense Tech ETF Goldman Sachs Group JA Solar Holdings, Co., Ltd. - American depositary shares, each representing fiv Keurig Green Mountain Lorillard Sentinelone Inc Cl A The Carlyle Group Toyota Motor Corp Ltd Ord ADR Twitter, Inc. Vodafone Grp Plc ADR Wpx Energy Inc