NetScout Added to the S&P SmallCap 600

NetScout Systems was added to Standard & Poor's "S&P SmallCap 600”, effective September 23, 2009.

"The S&P SmallCap 600 is an index of 600 small-cap stocks that is designed to be an efficient portfolio of companies within the small-cap universe,” explained David Sommers, chief financial officer, NetScout Systems. "In order to be added to the S&P SmallCap 600, companies must meet a set of guidelines that include not only market capitalization but also financial viability, liquidity, public float, and other trading requirements. These criteria insure that the S&P SmallCap 600 is comprised of stronger, higher-quality firms that are suitable for inclusion in index funds that focus on small-cap companies. NetScout’s selection by S&P is the result of our growth, both organic and inorganic, which has made us the largest player in the application performance management and service assurance sector and has driven our strong margins and cash flow."

Introduced in 1994, S&P SmallCap 600 is fast becoming the preferred small cap index in the U.S. and is gaining wide acceptance as the benchmark of choice for both active and passive management. S&P SmallCap 600 is a core component of the S&P U.S. indices that could be used as building blocks for portfolio construction.

About NetScout Systems

NetScout Systems, Inc. (NASDAQ: NTCT) is the market leader in Unified Service Delivery Management enabling comprehensive end-to-end network and application assurance. For 25 years, NetScout has delivered breakthrough packet-flow technology that provides trusted and comprehensive real-time network and application performance intelligence enabling unified assurance of the network, applications and users. These solutions enable IT staff to predict, preempt and resolve network and service delivery problems while facilitating the optimization and capacity planning of the network infrastructure. NetScout nGenius® and Sniffer® solutions are deployed at more than 20,000 of the world’s largest enterprises, government agencies, and service providers, on over 740,000 network segments to assure the network, applications, and service delivery to their users and customers. More information about NetScout Systems is available at http://www.netscout.com.

NetScout, NetScout logo, Sniffer and nGenius are registered trademarks of NetScout Systems, Inc.