American Stock Exchange Selects TNS to Provide Data Communication Services For AEMI(SM).

AEMI Is Amex's New State-of-the-Art Electronic Trading Platform

NEW YORK, Nov. 7 /PRNewswire/ -- The American Stock Exchange(R) (Amex(R)) and Transaction Network Services, Inc. (TNS), a leading provider of data communications services for transaction-oriented applications, today announced that the Amex has selected TNS to provide customers connectivity for market data distribution and to submit order flow to the Amex. The TNS data communication service was rolled out with the launch of the Amex's state of- the-art electronic trading platform, Auction and Electronic Market Integration (AEMI(SM)), on Monday November 6.

Antoine Shagoury, Amex's Chief Information Officer, said, "The Amex is pleased to be partnering with TNS. AEMI unites the best qualities of electronic and auction markets and the launch of our world-class technology platform is a great achievement for the Amex. We look forward to capturing greater market share and adding products on our new trading platform."

"TNS is delighted to have been chosen by Amex and to assist in expanding their trading technology to a wider audience," said Alan R. Schwartz, Executive Vice President and General Manager, TNS. "This announcement is further recognition of TNS' ability to provide reliable, secure connectivity to clients seeking speed, coupled with low-latency and extensive reach to the world's premier trading firms."

About American Stock Exchange

The American Stock Exchange(R) (Amex(R)) offers trading across a full range of equities, options and exchange traded funds (ETFs), including structured products and HOLDRS(SM). In addition to its role as a national equities market, the Amex is the pioneer of the ETF, responsible for bringing the first domestic product to market in 1993. Leading the industry in ETF listings, the Amex lists 205 ETFs to date. The Amex is also one of the largest options exchanges in the U.S., trading options on broad-based and sector indexes as well as domestic and foreign stocks. For more information, please visit http://www.amex.com/.

About Transaction Network Services, Inc.

Transaction Network Services is one of the leading providers of business- critical, cost-effective data communications services for transaction-oriented applications. TNS provides rapid, reliable and secure transaction delivery platforms to enable transaction authorization and processing across several vertical markets and trading communities.

Since its inception in 1990, TNS has designed and implemented multiple data networks, each designed specifically for the transport of transaction- oriented data. TNS networks support a variety of widely accepted communications protocols and are designed to be scalable and accessible by multiple methods. TNS network technologies have been deployed in the United States and internationally, and TNS networks have become preferred networks servicing the trading community, wireless and wireline carriers, and the card processing and dial-up automated teller machine markets. For further information about TNS transaction solutions, please refer to http://www.tnsi.com/.

CONTACT: Melanie Jacobus of American Stock Exchange, [phone], [e-mail], or Sara Parker of SheaHedges for TNS, [phone], [e-mail]

Web site: http://www.amex.com/ http://www.tnsi.com/