DALLAS--(BUSINESS WIRE)--Penson Worldwide, Inc. (NASDAQ: PNSN), a leading provider of execution, clearing, settlement, custody and technology products and services to the global financial services industry, today announced that Philip A. Pendergraft, Chief Executive Officer; and Kevin W. McAleer, Chief Financial Officer, will present to investors at the following event: Event: William Blair & Company Emerging Growth Stock Conference Date: Tuesday, October 6, 2009 Time: 10:15 AM
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