Harborside+ Links to NASDAQ's Liquidity Tracker

New York, N.Y.—The Nasdaq Stock Market, Inc. (NASDAQ^®) and Harborside+ have announced that Harborside+ is providing access to NASDAQ's Liquidity Tracker^SM, a block trading facility that provides market participants with a more efficient way to find liquidity.

Harborside+ is a neutral and confidential service for attracting and matching large block equity indications of interest (IOIs). Harborside+'s linkage with Liquidity Tracker enables traders using Harborside+ to receive IOIs concerning Liquidity Tracker orders and provides Liquidity Tracker users access to Harborside's liquidity pool, increasing fill rates for both sets of customers.

"Harborside+'s participation in NASDAQ's Liquidity Tracker provides yet another way for our constituents to find liquidity efficiently," said Adena Friedman, executive vice president of NASDAQ Data Products.

According to Harborside+ President and CEO Robert C. Hall, "Harborside+ is focused on constantly enhancing the trading experience and success of our users. With this development, they now gain additional trading opportunities."

Liquidity Tracker, which is based on patent-pending technology, was developed by e-Xchange Advantage Corporation (eXA) and licensed to NASDAQ. eXA and Harborside+ jointly developed Harborside+'s interface to Liquidity Tracker.

"Harborside+'s participation in Liquidity Tracker is a terrific boon to users of both systems," said e-Xchange Advantage CEO Fred Federspiel. Harborside+ can deliver additional trading opportunities to its institutional users and NASDAQ can increase the ways in which Liquidity Tracker orders are filled."

Liquidity Tracker began operating in December 2002 with all of NASDAQ's approximately 3,600 National Market and SmallCap securities and is accessible to participants via SuperMontage^SM, NASDAQ's next generation trading system. When a broker arrives with a large customer order, Liquidity Tracker determines from recent trading activity which other broker is the most likely trading partner for the order. Liquidity Tracker then arranges for the two brokers to interact and get the trade done quickly, with minimal market impact. With the participation of Harbordside+ in Liquidity Tracker, Liquidity Tracker can also be used to route IOIs about Liquidity Tracker orders to Harborside+ customers.

About Harborside+
Harborside+ melds the best of technology and human intervention, so that buyers and sellers can find each other and successfully complete a transaction quickly, efficiently and without market disruption. As part of its standard business practice of confidentiality, Harborside+ does not reveal customers, trades or volumes. For more information on Harborside+, visit www.harborsideplus.com.

About e-Xchange Advantage Corp.
Founded in 1999, e-Xchange Advantage Corporation builds its patent-pending trading technology into block trading tools for equity securities. The company is located in New York City. Investors include the NASDAQ Stock Market, Inc. and BiosGroup, Inc. For more information about eXA, visit www.eXchangeAdvantage.com.

About NASDAQ
NASDAQ is the world's largest electronic stock market. With approximately 3,600 companies, NASDAQ lists more companies and trades more shares per day than any other U.S. market. It is home to category-defining companies that are leaders across all areas of business including technology, retail, communications, financial services, media and biotechnology industries. For more information about NASDAQ, visit the NASDAQ Web site at www.nasdaq.com or the NASDAQ Newsroom^SM at www.nasdaq.com/newsroom.