NYSE EURONEXT ACHIEVES LARGE-SCALE DATA MANAGEMENT WITH NETEZZA

Global Exchange Leader Implements Streaming Analytic Appliances for High-Performance Analysis on 200 TB of Data; Joins Growing List of 50+TB Deployments

Framingham, Mass. — October 29, 2007 — Netezza Corporation (NYSE Arca: NZ), the global leader in analytic appliances, today announced that NYSE Euronext has chosen Netezza to provide enhanced scalability for its growing data volumes. NYSE Euronext is launching several enterprise-critical applications on Netezza Performance Server® (NPS®) streaming analytic™ appliances to enable improved organizational operations, investigate potential trading anomalies and identify market trends. NYSE Euronext joins a growing list of Netezza customers, including Catalina Marketing and Epsilon, who have deployed 50 terabytes or more on the NPS systems, validating the appliance approach for VLDB deployments.

NYSE Euronext operates the world's largest and most liquid exchange group and offers the most diverse array of financial products and services, bringing together six cash equities exchanges in five countries and six derivatives exchanges.

“With data volumes growing at 100 to 200 percent each year, we worried about scalability and performance issues with our previous data warehouse environment, which was also very complex and expensive to maintain,” said Brian Clark, chief architect and managing director at NYSE Euronext. “Netezza’s simplicity allowed us to quickly implement the NPS systems. With the incredible performance benefits and improved time to market we are now realizing, we can easily keep pace as data volumes spike. Netezza has simplified our entire data warehouse environment.”

“In the intense exchange market, millions of people around the world rely on the ability to access up-to-date, accurate information,” said Jit Saxena, chairman and CEO at Netezza. “We are pleased that NYSE Euronext has turned to Netezza to provide the performance, scalability and reliability that it needs to satisfy its customers and ensure a fair trading market.”

Designed specifically for high-performance, terascale analytics, the NPS system architecturally integrates a relational database, server and storage into a single compact and power-efficient unit. The system’s advantage comes from its patented Intelligent Query Streaming™ design. Netezza has placed processing power next to the data, so analysis occurs at the source at streaming speeds, delivering an unprecedented 10-100 times the performance of traditional systems at a fraction of the cost. Analyses that took days now take just seconds. This means a dramatic increase in productivity across the enterprise and faster time to value for business initiatives. Netezza appliances are changing the way organizations leverage information, creating a powerful analytic foundation for a new generation of business analytics that improve strategic decision-making and drive results.

About NYSE Euronext (NYSE: NYX)
NYSE Euronext, a holding company created by the combination of NYSE Group, Inc. and Euronext N.V., commenced trading on April 4, 2007. NYSE Euronext (NYSE Euronext: NYX) operates the world’s largest and most liquid exchange group and offers the most diverse array of financial products and services. NYSE Euronext, which brings together six cash equities exchanges in five countries and six derivatives exchanges in six countries, is a world leader for listings, trading in cash equities, equity and interest rate derivatives, bonds and the distribution of market data. Representing a combined $30.8 trillion/€22.8 trillion total market capitalization of listed companies and average daily trading value of approximately $127.0 billion/€94.0 billion (as of June 29, 2007), NYSE Euronext seeks to provide the highest standards of market quality and integrity, innovative products and services to investors, issuers, and all users of its markets.

About Netezza Corporation (NYSE Arca: NZ)
Netezza is the global leader in analytic appliances that dramatically simplify high-performance analytics for business users across the extended enterprise, delivering significant competitive and operational advantage in today’s information-intensive marketplaces. The Netezza Performance Server® (NPS®) family of streaming analytic™ appliances brings appliance simplicity to a broad range of complex data warehouse and analytic challenges. Customers who have realized the benefits of Netezza appliances include Ahold, Amazon.com, CNET Networks, Debenhams, Department of Veterans Affairs, Epsilon, Neiman Marcus, Orange UK, Premier, Inc., Ross Stores, Ryder System, Inc., The Carphone Warehouse and Virgin Media. Based in Framingham, Mass., Netezza has offices in Washington, DC, the United Kingdom and Asia Pacific. For more information about Netezza, please visit www.netezza.com.

Netezza, Netezza Performance Server, NPS, Intelligent Query Streaming and streaming analytic are trademarks of Netezza Corporation. Other names may be trademarks of their respective owners.