Provider of electronic algorithmic trading securities services intended to offer electronic market making and providing execution algorithms and dark pool services. The company's electronic algorithmic trading also offers a generalized pool of independent securities enabling investors a range of services designed to address trading needs across asset classes, product types and time zones combining advanced technology with specialized client service across market making, agency execution and venues and also engages in principal trading via exchange-based market making through its multiple access points to trade global equities, fixed income, options, currencies and commodities via voice or automated execution.