Press release

Penson Financial Services introduce STARS, a new outsourced settlement platform for institutional clients underpinned by Syn~ architecture.

LONDON (UK)—1 October 2007—Penson Financial Services Ltd (PFSL), the UK based clearing services subsidiary of Penson Worldwide, Inc. (NASDAQ: PNSN), today announced that it has incorporated Syn~ as the mid- and back-office clearing and settlement solution for STARS (Solution for Transaction Administration and Real Time Settlement) for its institutional clients.
PFSL, an FSA regulated firm, provides a broad range of execution, settlement, clearing and custody services to market makers, broker dealers and private client wealth managers.  Over the past year, PFSL has reviewed its processes, products and service delivery standards and evaluated potential systems. As a result of this strategic review, Syn~ was chosen to update the core hosted solutions for institutional clients. STARS will extend and improve PFSL's services to clients as well as enable operational efficiencies.
Alan Philpot, CEO of PFSL, commented, "We are proud to have introduced our new STARS institutional platform which is underpinned by Syn~.  STARS is designed to help institutional clients which outsource their Model A or fully disclosed clearing to Penson and is flexible and adaptable to their individual requirements.  We look forward to signing up more institutional clients to our STARS platform and introducing a new technology platform for our retail clients later this year."
Sharron Davey, Director of Client Services, Sales and Marketing added, "At Penson, we believe that technology is one piece of the client delivery equation.  In addition, we pride ourselves on our service infrastructure which supports the implementation of our technology and focuses on the overall service delivery to clients.  In addition to introducing new technology products, we believe that our high service standards differentiate Penson from other outsourcing providers. "
Syn~'s modern, flexible, rules and model-based architecture has assisted PFSL to create a series of pick and mix modules from which client firms choose in order to create a tailor-made, integrated and hosted solution.
"Syn~ is a modern, scalable, settlement, order routing and reference data management solution for firms wanting to provide tailored, hosted services to individual clients in an efficient multi-client environment," said Sunil Shah, Chief Executive Officer of Coexis.

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About Penson Worldwide: www.penson.com

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.  The Penson Worldwide group of companies includes Penson Financial Services, Inc., Penson Financial Services Canada, Inc., Penson Financial Services Ltd., Nexa Technologies, Inc., Penson Financial Futures, Inc. and Penson GHCO, among other companies.  Headquartered in Dallas, Texas, Penson has served the clearing needs of all types of broker/dealers since 1995.  Penson is The Flexible Choice in Global Financial Services.
Penson Financial Services, Inc. is a member of the American Stock Exchange, Chicago Stock Exchange, the FINRA, the Chicago Board Options Exchange, OneChicago, the International Securities Exchange, the NYSE Arca Exchange, the Options Clearing Corp, the MSRB, NSCC, ICMA, DTC, Euroclear, SIPC and is a participant of the Boston Options Exchange (BOX). Penson Financial Services Canada, Inc. is a participating organization with the Toronto Stock Exchange, the Montreal Exchange, the TSX Venture Exchange, is regulated by the Investment Dealers Association of Canada, and is a member of the CIPF. Penson Financial Services, Ltd. is a member of the London Stock Exchange and is authorized and regulated by the Financial Services Authority. Penson Financial Futures, Inc. is a registered Futures Commission Merchant.  Penson GHCO is a registered Futures Commission Merchant and clearing member at the Chicago Mercantile Exchange, Chicago Board of Trade, London International Financial Futures Exchange, and ICE Futures.

About Syn~ and Coexis:
Coexis, the creator of Syn~®, provides next generation software technology and applications which meet the dynamic business needs of the Global Capital Markets. Syn~ applications take advantage of a rules- and lifecycle-based approach which frees users from the high cost of bespoke solutions and the rigidity of off-the-shelf packages. Applications include Syn~Broker, Syn~Settlements, Syn~Customer, Syn~Funds, Syn~Struct and Syn~Clear.

Forward-Looking Statements
Statements contained in this news release that are not based on current or historical fact are forward-looking in nature. Such forward-looking statements are based on current plans, estimates and expectations. Forward-looking statements are based on known and unknown risks, assumptions, uncertainties and other factors. Penson's actual results, performance, or achievements may differ materially from any future results, performance, or achievements expressed or implied by such forward-looking statements. Penson undertakes no obligation to publicly update or revise any forward-looking statement.

Contacts:
Julia Streets
Gordian Enterprises Limited on behalf of Penson Financial Services Ltd
T: 0845 402 5196    
E: Jbt.streets@gordian-enterprises.co.uk

Andy Yemma or Erica Fidel
Intermarket Communications on behalf of Penson Worldwide, Inc.
T: 212-754-5450 or 212-754-5448     
E: andy@intermarket.com or erica@intermarket.com

Salli Roskilly
Saffron Communications Limited on behalf of Coexis Limited
T: +44 (0)1763 208708  
E: salli(at)saffroncoms.com

Sunil Shah
Chief Executive Officer
Coexis Limited 1 High Street Rickmansworth Herts WD3 1ET UK 
T: +44 (0)1923 720477  
E: sunil.shah(at)coexis.com

© Copyright Coexis Limited 2004-2008 – Find out more – call us on +44 (0)1923 726800