The Penson Worldwide group of companies provides execution, clearing, custody, settlement and technology infrastructure products and services to financial services firms and others servicing the global financial services industry.

Nexa Technologies, Inc., a subsidiary of Penson Worldwide, Inc., is a provider of online and direct access trading solutions that incorporate multi-asset trading systems, FIX-compliant order routing, an Order Management System (OMS), and comprehensive data and market access to European and North American equity, options and derivatives markets.

First Derivatives are specialists in the design and implementation of tick databases and their use in algorithmic trading. FDqAlgo is the First Derivatives low latency algorithmic trading platform - for further information on this and other First Derivatives products and services visit their website.