Related by context. Frequent words. (Click for all words.) 61 PHLX 59 OneChicago 58 Options Clearing Corporation 56 Equiduct 56 NYSE Arca Options 56 CBOE Futures 56 Agora X 56 NYSE Arca 55 HyperFeed 55 Correlix 54 Eurex Clearing 54 BATS Options 53 NYSE Euronext 53 Townsend Analytics 53 BIDS Trading 53 ELX Futures 53 CHX 52 Euronext.liffe 52 symbol PPG 52 BATS Trading 52 Clearing Corporation 52 Options Clearing Corp. 52 CME Group 52 IDCG 52 BrokerTec 51 Regulation NMS 51 CME Globex R 51 Eurex 51 NYFIX 51 Nodal Exchange 51 CBOE 51 BATS Exchange 50 Reg NMS 50 NASDAQ NDAQ 50 IntercontinentalExchange ICE 50 Bloomberg Tradebook 50 Options Exchange 50 Nasdaq OMX 50 Direct Edge 50 CME Clearing 50 NASDAQ OMX Group 50 SFTI 50 NASDAQ Small Cap 50 NYSE Euronext NYX 50 Nasdaq OMX Group 49 HedgeStreet 49 NYSE Liffe 49 # DSY.PA stock 49 CME Globex 49 Currenex 49 Eze Castle Software 49 Firm# 49 NASDAQ SmallCap 49 ConvergEx 48 Fixnetix 48 Philippine PSE 48 & FBOVESPA 48 FTEN 48 vFinance 48 Ballista 48 NYSE FINRA SIPC 48 ClearPort 48 Oslo Børs 48 CAPIS 48 NYBOT 48 Mercantile Exchange NYMEX 48 OANDA 48 Comstock Homebuilding Companies 47 Derivix 47 eSpeed 47 trade MONSTER 47 TraderTools 47 FXall 47 MiMedx Group 47 Bolsa de Valores 47 Xetra 47 CBOE Holdings 47 Paris MTP Brussels 47 Archipelago Holdings 47 EquiLend 47 PowerShares QQQ 47 optionsXpress Holdings Inc. 47 Self Regulatory Organization 47 ATSs 46 CME Globex electronic 46 Algorithmic Trading 46 Nasdaq NDAQ 46 Penson Worldwide Inc. 46 ConvergEx Group 46 NYMEX 46 ELX 46 Securities Dealers NASD 46 NMX 46 Neonet 46 iFinix Corp. 46 Tradeweb 46 Intelligent Communication 45 7ticks 45 Invesco PowerShares Capital 45 Exegy 45 Commences Trading