Penson Worldwide, Inc. (Penson) is a provider of a range of critical securities and futures processing infrastructure products and services to the global financial services industry. The Company’s products and services include securities and futures clearing and execution, financing and cash management technology and other related offerings, and it provides tools and services to support trading in multiple markets, asset classes and currencies. The Company supplies a flexible offering of infrastructure and related products and services to its clients, available both on an unbundled basis and as a fully-integrated platform encompassing all of its products and services. The Company has operations in the United States, Canada, the United Kingdom and Asia. The Company conducts business through its wholly owned subsidiary SAI Holdings, Inc. (SAI).