IDC Interactive Data Corp.

Interactive Data Corporation (NYSE: IDC), a leading provider of financial market data, analytics and related services to financial institutions, active traders and individual investors, today announced the closing of its acquisition of the assets comprising the market data division of Xcitek LLC, as well as the market data assets of its affiliate Xcitax LLC, for $25.3 million in cash. Xcitek�s market data business provides a broad range of North American corporate actions data, including reorganization information, as well as valuable cost basis and class action data. Xcitek provides this content to over 2,000 financial institutions worldwide through a variety of delivery platforms including electronic datafeed services, proprietary web-based offerings and an extensive network of redistributors. Xcitek�s operations will remain based in New York City and will be integrated into Interactive Data�s Pricing and Reference Data business. As part of the initial integration efforts, Xcitek�s services will be marketed as Interactive Data Xcitek. The acquisition does not include XcitekSolutionsPlus, LLC (XSP), a software company affiliated with Xcitek LLC nor does it include Xcitek Consulting Services Inc. (XCS), both of which will continue to operate as independent entities. About Interactive Data Corporation Interactive Data Corporation (NYSE: IDC) is a leading global provider of financial market data, analytics and related services to financial institutions, active traders and individual investors. The Company�s businesses supply time-sensitive pricing, evaluations and reference data for more than 3.5 million securities traded around the world, including hard-to-value instruments. Many of the world's best-known financial service and software companies subscribe to the Company's services in support of their trading, analysis, portfolio management and valuation activities. Through its businesses, Interactive Data Pricing and Reference Data, Interactive Data Real-Time Services, Interactive Data Fixed Income Analytics, and eSignal, the Company has approximately 2,200 employees in offices located throughout North America, Europe, Asia and Australia. The Company is headquartered in Bedford, Mass. Pearson plc (NYSE: PSO; LSE: PSON), an international media company, whose businesses include the Financial Times Group, Pearson Education, and the Penguin Group, owns approximately 62 percent of the outstanding common stock of Interactive Data Corporation. Interactive Data Pricing and Reference Data provides global securities pricing, evaluations and reference data designed to support financial institutions� and investment funds' pricing activities, securities operations, research and portfolio management. Interactive Data Pricing and Reference Data collects, edits, maintains and delivers data on more than 3.5 million securities, including daily evaluations for approximately 2.5 million fixed income and international equity issues. Interactive Data Pricing and Reference Data specializes in �hard-to-get� information from emerging markets and evaluates many �hard-to value� instruments. Pricing, evaluations and reference data are provided in the U.S. through Interactive Data Pricing and Reference Data, Inc. and internationally through Interactive Data (Europe) Ltd. and Interactive Data (Australia) Pty Ltd. For more information about Interactive Data Corporation and its businesses, please visit www.interactivedata.com.