Intuitive Surgical, Inc. to Join the NASDAQ-100 Index Beginning February 1, 2006

New York — Intuitive Surgical, Inc. (NASDAQ:ISRG) of Sunnyvale, California, will "become a component of the NASDAQ-100 Index® (NASDAQ: NDX), prior to market open on Wednesday, February 1, 2006. Intuitive Surgical will replace Siebel Systems, Inc. (NASDAQ: SEBL). Intuitive Surgical will also be included in the NASDAQ-100 Index Tracking StockSM (NASDAQ: QQQQ).

With a market capitalization of approximately $4.5 billion, Intuitive Surgical develops, manufactures and markets robotic technologies designed to improve clinical outcomes and help patients return more quickly to active and productive lives. The company’s mission is to extend the benefits of minimally invasive surgery to the broadest possible base of patients.

The NASDAQ-100 Index, launched in January 1985, is one of the most widely followed benchmarks in the world. The NASDAQ-100 Index Tracking Stock represents ownership in the NASDAQ-100 Trust. The Trust holds a portfolio of equity securities that compose the NASDAQ-100 Index and aims to provide investment results that generally correspond with the performance of the Index.

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Source:
www.nasdaq.com