Acquires System from National Stock Exchange

Denver, CO – June 20, 2006 – Selero, Inc today announced that it has acquired a license for the Client Automated Trading System (CATS) from the National Stock Exchange and that it will provide the System as a hosted service to current CATS users and other interested market makers, specialists, wholesalers, and internalization traders. Selero will call the service Selero Trade Execution System (STX).

Selero will deliver STX over its order routing network (Dominet) and its IP/VPN (Dominet Network) as it has for the last few years. In addition, the Company will make enhancements to the System in response to changing market requirements, under the direction of Michael Wojcik who recently moved to Selero from the NSX.

According to one CATS user doing internalized trade matching "STX is very close to being a black box system. I trade over 1500 symbols and millions of shares a day worry free, because I can trust the System’s trade automation will execute my orders exactly as I expect it to. Then when I need to change trade parameters, I can do it on-the-fly, at any time of the day. STX is on the forefront of automated trading in listed stocks."

"STX adds tremendous value to Selero’s already powerful, application-on-demand, order routing network," said Fred Horn, CEO of Selero. "We have been supporting CATS users for years, because they have used our network to connect with the NSX. That means we know, first hand, how much they like the system and why. We are excited about the potential of extending the System’s market reach."

A major consideration in licensing to Selero was the Company’s ability to support existing customers. However, according to David Colker, CEO of the NSX "Selero has been a great partner in the past. We feel we are putting today’s CATS customers in good hands."

The transition of the System itself to Selero is currently under way and expected to be completed later this Summer The Company will be demonstrating the System at this month’s SIA Technology Management Conference in New York, June 20-22, and it is actively recruiting new customers.

* * * *

About Selero, Inc.™
Selero, Inc.™ is a leading provider of order routing and integration solutions for the securities industry. Since 1998, the Company has been providing rapid connectivity between trading partners, integration between home-grown and third party applications within organizations, and more recently a trade execution system. Selero’s customers include Exchanges, Retail Brokers, Market Makers, and Regulatory Bodies, and others such as Boston Stock Exchange, Bank of New York, E*Trade, Scottrade, Automated Trading Desk, and Track Data. To learn more about the company, visit www.selero.com.