Pre Market Movers Top Gaining Stocks Price %Change MELI Mercadolibre Inc ... 136.27 18.29% JDST Direxion Daily Jr... 33.34 16.45% GPRO Gopro Inc. 78.80 15.46% AVIV Aviv Reit 34.50 14.62% ONNN ON Semiconductor ... 8.98 12.11% IMPV Imperva Inc 36.00 10.84% OXGN Oxigene Inc. 2.60 10.17% BYD Boyd Gaming Corp.... 12.15 10.15% TUBE Tubemogul Inc 16.90 10.10% SPR Spirit Aerosystem... 43.00 10.09% GRPN Groupon Inc. 6.50 8.51% SFUN Soufun Holdings 10.15 8.32% SRPT Sarepta Therapeut... 17.00 8.07% CTRL Control4 Corp 14.70 7.53% LNKD Linkedin 215.21 6.07% DXJ Wisdomtree Trust ... 53.50 5.96% AMBA Ambarella Inc. 44.15 5.62% SOXL Direxion Daily Se... 104.50 5.57% ISRG Intuitive Surgica... 515.57 5.22% RUSL Direxion Daily Ru... 11.46 4.95% Top Losing Stocks Price %Change AEGR Aegerion Pharmace... 23.50 -31.31% JNUG Direxion Daily Jr... 4.11 -16.97% TRMB Trimble Navigatio... 27.00 -11.27% MGI Moneygram Interna... 11.34 -10.28% STAA Staar Surgical Co... 9.96 -9.78% NUGT Direxion Daily Go... 11.98 -9.58% COMM Commscope Holding... 21.50 -7.53% CDTI Clean Diesel Tech... 3.67 -6.14% GDXJ Market Vectors\u0... 24.97 -4.55% TZA Direxion Daily Sm... 13.58 -4.30% EDZ Direxion Daily Em... 31.71 -4.17% VXX Barclays Bank Plc... 29.91 -3.95% SBUX Starbucks Corp. 74.50 -3.65% GDX Market Vector Gol... 17.62 -3.19% NGD New Gold 3.71 -2.62% SMCI Super Micro Compu... 31.00 -2.45% DBVT Dbv Technologies ... 24.50 -2.20% GLD Spdr Gold Trust 112.75 -2.12% SGOL Etfs Gold Trust 115.00 -2.09% SSRI Silver Standard R... 4.70 -2.08%