Graham O'Brien has extensive experience in the financial industry, primarily in equity markets and derivatives. Since March 2001, Graham O'Brien has held various leadership roles at ASX, including Head of Equity Market Sales and Equity Derivatives, Senior Manager of Equity Derivatives, Manager of Equity Derivatives Sales, and Business Development Manager. Prior to joining ASX, Graham O'Brien worked at Bell Potter Securities from 1998 to 2001 as an Equity Dealer/DTR, contributing to a solid foundation in equity trading and market operations.