NYSE Euronext (NYX), the world’s most diverse exchange group, and Ciena® Corporation (NASDAQ:CIEN), the network specialist, today announced plans to implement the first 100G network that will enable NYSE Euronext to provide both the speed and ultra-low latency to facilitate unparalleled execution of equities quotes, trades, options data and other financial transactions in the U.S., Europe and globally. Ciena’s 100G technology will be a core infrastructure component to support the growing bandwidth demands of NYSE Euronext’s new state-of-the-art data centers in the greater New York and London metropolitan areas. These facilities are expected to be operational in 2010 and are designed to serve as the company’s operational hubs for more than one billion daily transactions comprising petabytes of information.

“It is critically important for NYSE Euronext, in our dual role as an exchange operator and technology company, to ensure a technology and operational infrastructure of the highest quality and integrity, and to provide the highest levels of speed and capacity, lowest latency and maximum flexibility,” said Stanley Young, CEO of NYSE Technologies and Co-Global CIO of NYSE Euronext. “Powering our new data centers and network with Ciena technology will help produce a clear competitive advantage for NYSE Euronext and our customers in terms of executing trades and delivering mission critical information as well as advancing leading edge applications such as state-of-the-art co-location facilities.”

For more than one year, NYSE Technologies’ U.S. and European communications engineering teams led by Andy Bach, Senior Vice President and Global Head of Communications, as well as Global IT procurement and Legal support services, worked to define an architecture and select a partner to jointly define, create and deploy a leading-edge solution that would position NYSE Euronext at the forefront of ultra-low latency executions and market data distribution.

Ciena’s CN 4200® RS FlexSelect® Advanced Services Platform, capable of delivering a true 100G data stream over a single wavelength, will play a key role in NYSE Euronext’s communications backbone – the Secure Financial Transaction Infrastructure® (SFTI®) network – to maximize customers’ access to a wide variety of financial information and trading applications.

“Continuing our heritage of optical innovations and industry firsts, we’re excited to enable NYSE Euronext to reach new levels of network performance with this 100G network,” said Steve Alexander, Chief Technology Officer at Ciena. “As the traffic demands of enterprises and service providers continue to escalate beyond current network capacities, our solutions provide customers with network scalability from 1 Mbps to 100 Gbps, ensuring a flexible, simplified and operationally-efficient network foundation to support a wide variety of applications and services.”

About NYSE Euronext

NYSE Euronext (NYX) is the world’s most diverse exchange group, offering a broad and growing array of financial products and services in Europe and the United States that include cash equities, futures, options, exchange-traded products, bonds, market data, and commercial technology solutions. With over 8,000 listed issues globally, NYSE Euronext's equities markets -- the New York Stock Exchange, Euronext, NYSE Arca, and NYSE Amex -- represent nearly 40% of the world's cash equities trading volume, the most liquidity of any global exchange group. NYSE Euronext also operates NYSE Liffe, the leading European derivatives business and the world’s second largest derivatives business by value of trading. NYSE Euronext offers comprehensive global commercial technology, connectivity, and market data products and services through its innovative trading solutions unit, NYSE Technologies. NYSE Euronext is part of the S&P 500 index and the only exchange operator in the S&P 100 index. For more information, please visit: www.nyx.com.

About Ciena

Ciena specializes in practical network transition. We offer leading network infrastructure solutions, intelligent software and a comprehensive services practice to help our customers use their networks to fundamentally change the way they compete. With a growing global presence, Ciena leverages its heritage of practical innovation to deliver maximum performance and economic value in communications networks worldwide. For more information, visit www.ciena.com.

Cautionary Note Regarding Forward-Looking Statements

This press release may contain forward-looking statements, including forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such forward-looking statements include, but are not limited to, statements concerning NYSE Euronext’s plans, objectives, expectations and intentions and other statements that are not historical or current facts. Forward-looking statements are based on NYSE Euronext’s current expectations and involve risks and uncertainties that could cause actual results to differ materially from those expressed or implied in such forward-looking statements. Factors that could cause NYSE Euronext’s results to differ materially from current expectations include, but are not limited to: NYSE Euronext’s ability to implement its strategic initiatives, economic, political and market conditions and fluctuations, government and industry regulation, interest rate risk and U.S. and global competition, and other factors detailed in NYSE Euronext’s reference document for 2007 ("document de référence") filed with the French Autorité des Marchés Financiers (Registered on May 15, 2008 under No. R. 08-054), 2008 Annual Report on Form 10-K and other periodic reports filed with the U.S. Securities and Exchange Commission or the French Autorité des Marchés Financiers. In addition, these statements are based on a number of assumptions that are subject to change. Accordingly, actual results may be materially higher or lower than those projected. The inclusion of such projections herein should not be regarded as a representation by NYSE Euronext that the projections will prove to be correct. This press release speaks only as of this date. NYSE Euronext disclaims any duty to update the information herein.

Note to Ciena Investors

This press release contains certain forward-looking statements based on current expectations, forecasts and assumptions that involve risks and uncertainties. These statements are based on information available to the Company as of the date hereof; and Ciena's actual results could differ materially from those stated or implied, due to risks and uncertainties associated with its business, which include the risk factors disclosed in its Report on Form 10-Q, which Ciena filed with the Securities and Exchange Commission on March 5, 2009. Forward-looking statements include statements regarding Ciena's expectations, beliefs, intentions or strategies regarding the future and can be identified by forward-looking words such as "anticipate," "believe," "could," "estimate," "expect," "intend," "may," "should," "will," and "would" or similar words. Ciena assumes no obligation to update the information included in this press release, whether as a result of new information, future events or otherwise.

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