Tick Data Division of Nexa Technologies Introduces New London Stock Exchange Historical Trade and Quote Data Product

Extension of Tick Data Product Offering Enables High Frequency Trading Customers To Back-Test Trading Strategies on Markets Outside North America

Irvine, California, 21 March 2005 – Tick Data, the specialist historical data division of Nexa Technologies, Inc., today announced it is expanding its data offering to include trade and quote data from the London Stock Exchange (LSE). The agreement with London’s premier equity and financial derivatives exchange extends Tick Data’s equity coverage beyond the current database sourced from the New York Stock Exchange (NYSE), NASDAQ and AMEX. The move will enable retail and institutional traders, hedge funds, and quantitative trading desks to back-test their trading strategies and evaluate order execution in European equity markets.

The distribution agreement with the LSE, which came into effect on February 8, 2005, is the first in a series of initiatives to globalize Tick Data’s Tick Equity Database. Tick Data’s historical data products are currently used by many of the world’s largest financial institutions and thousands of professional traders worldwide. In January 2005, Penson Worldwide acquired Tick Data, Inc. and merged it with Nexa Technologies, Penson’s trading technology subsidiary. The acquisition advances Nexa’s commitment to servicing the diverse requirements of the global automated trading community. It extends Nexa’s suite of next-generation trading solutions beyond the online, direct access and institutional brokerage trading solutions arenas to include research-quality historical intraday time series data.

David Lester, Chief Information Officer, London Stock Exchange, says: "We are delighted to provide Nexa Technologies’ Tick Data clients with access to the LSE’s high frequency historical data. By coupling our data with Nexa’s online and direct access trading solutions and value-add Tick Data analytical and database expertise, a wider community of hedge funds and high-frequency trading operations will experience the trading possibilities on the LSE, promoting greater liquidity on a global scale."

Eric Stoop, President, Nexa Technologies, Inc., says: "Our agreement with the LSE marks the first step in broadening the scope of the Tick Data product line to include global equity data. It perfectly illustrates how the suite of Nexa and Tick Data products compliment each other. By combining Tick Data’s products with our existing real-time data feed and deploying them seamlessly within our Direct Market Access trading platforms, we are able to offer our clients unprecedented access to historical and real-time information for their model-building, trading, and order execution evaluation."

Neal Falkenberry, SVP Tick Data Division, Nexa Technologies, Inc., adds: "By delivering historical data from the LSE in a ‘ready to use’ format, we have eliminated most of the challenges of building and maintaining a large, high-frequency database. We deliver data with all necessary corporate actions applied and verified. Our proprietary algorithms for filtering and cleaning high frequency data give clients immediate access to clean data and remove the need for additional verification. It is only logical to apply our expertise to equity markets outside of the United States, and we are excited to be the first firm to offer this product."

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