Related by context. Frequent words. (Click for all words.) 58 Penson Worldwide 58 Penson Worldwide Inc. 53 Pershing LLC 52 MML Investors Services 50 EquiLend 49 Townsend Analytics 48 TradeStation Securities 48 Deloitte Touche Tohmatsu Verein 47 counterparty clearing 47 Ladenburg Thalmann Financial 47 Claymore Advisors LLC 47 broker dealers 47 Penson 46 CME Clearing 46 Member FINRA 46 member NASD SIPC 46 LCH.Clearnet 46 Trayport 45 GAIN Capital 45 FFastFill 45 EuroCCP 45 Member FINRA SIPC 45 HighTower 45 Broker Dealer 45 broker dealer 45 Prime Brokerage 45 Portware 44 Corporate Actions 44 RealTick 44 FXall 44 BISYS 44 ConvergEx 44 Orc Software 44 MF Global Holdings 44 Managed Account 44 Liquidnet 44 OTC derivative 43 servicing issuer 43 Interbank FX 43 Broadridge 43 Fidessa 43 Blackmont Capital Inc. 42 Paladyne 42 ICE Clear 42 XSP 42 Clearing Corporation 42 ALPS Distributors Inc. 42 FCStone Group 42 Patsystems 42 member FINRA SIPC 42 Invesco Ltd. 42 Chi X 42 BIDS Trading 42 Euroclear 42 BNY 42 Options Clearing Corporation 41 DTCC 41 CDARS 41 Omgeo 41 Natixis Global 41 Envestnet 41 OneChicago 41 occassionally compensated 41 Fixnetix 41 Tristone Capital 41 Orc Trading 41 CIBC Mellon 40 NYFIX 40 QuoteMedia 40 Cornerstone Real Estate 40 GL TRADE 40 buyside 40 TradeStation Group 40 Lyxor 40 TradeWeb 40 GlobeOp 40 Aon Risk 40 Piper Jaffray Companies 40 PNC Capital Markets 40 registered broker dealer 40 CoBiz 40 CME ClearPort 40 Brokerage 40 Investment Counsel 40 optionsXpress Holdings Inc. 40 Virtus Investment Partners 40 AIM Investments 40 DSTi 40 Depository Trust & 40 Alpari 40 CQG 40 Investment Banking 40 CDS clearing 39 Schwab Institutional 39 Citco 39 Zions Direct 39 PFPC 39 BNY Mellon Asset Servicing 39 MicroStrategy Incorporated 39 interdealer broker 39 Datafeed