ATD Names Tim Brennan Executive Vice President of Equity Options; Former Morgan Stanley and Citadel Investment Group Executive to Lead Options Market Making Business.

MT. PLEASANT, S.C. -- Automated Trading Desk, LLC (ATD), a pioneer of automated trading technology, today announced the appointment of Tim Brennan as Executive Vice President of Equity Options. He will be responsible for developing and building an automated options market maker for ATD.

Mr. Brennan has extensive and successful experience in creating automated market making functions for firms including Morgan Stanley, Citadel Investment Group and Fox River Financial Resources ("Fox River"). Most recently at Fox River, Mr. Brennan was responsible for coordinating trading, quantitative research and technology functions to develop an automated options market making system capable of trading in over 600 stocks.

"Having Tim join our team will allow us to apply our automated technology to the options business and become that single-source destination for U.S. equity and options order flow our partners are looking for," said Steve Swanson, President and CEO of ATD. "Tim brings an incredible knowledge of both the U.S. equity options market structure and options trading technology that will allow us to form a world-class options trading business."

At Citadel Investment Group in Chicago, Mr. Brennan joined the options market making business, helping the team hold the highest customer market share on the International Securities Exchange (ISE), while he managed all exchange, options, and securities relationships. Mr. Brennan was also on the original team to build Citadel Execution Services.

Mr. Brennan was previously an Executive Director at Morgan Stanley where he helped establish their automated U.S. options market making system. In this capacity, he also co-managed risk for a US equity options portfolio of over 550 stocks, and contributed to Morgan Stanley's trading algorithms. He also led initiatives to build out electronic and physical specialist posts at the Pacific Coast Options Exchange (PCX), increasing PCX options market share to over 14%.

"The options market continues to rely on automated applications, which positions us at ATD to leverage our proven technologies. I'm really excited for this opportunity, and look forward to putting the right team in place," said Mr. Brennan.

Mr. Brennan held previous positions on the Board of Directors of the Boston Options Exchange (BOX), Securities Industry Association Options Committee and Options Intermarket Linkage Advisory Panel.

In recent news, ATD has also announced the hires of Jack Vensel, previously from Island ECN and Instinet, to lead the sales and marketing effort for sell-side customers, and Dan Keegan, previously with JP Morgan, to lead its institutional equities business.

About Automated Trading Desk

ATD is a technology company specializing in automated trading and customized equity execution solutions for its customers. We offer automated execution solutions in all domestic equity markets, including the listed, over-the-counter, exchange traded fund and bulletin board marketplaces.

ATD's automated systems strive to deliver superior execution, realizing significant time and cost savings. As an execution venue, ATD executes orders from buy-side institutions, retail order-sending firms, and sell-side broker/dealers, handling orders ranging in size from odd lots to institutional size blocks. During the fourth quarter of 2005, ATD accounted for approximately 6% of all NASDAQ volume and 5% of all NYSE volume.

ATD is the sole owner of Automated Trading Desk Financial Services, LLC (AUTO), and Automated Trading Desk Brokerage Services, LLC (ATDB), both Members NASD/SIPC.