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 initial closing of its acquisition of a majority interest in NTT DATA Financial Corporation (NDF). Interactive Data paid approximately 2.4 billion yen (or approximately U.S. $25.8 million based on current foreign exchange rates) in cash to acquire 79% of NDF, of which 64% was purchased from NTT DATA Corporation and 15% from certain minority shareholders. The acquisition of NDF provides Interactive Data with a strong, direct presence in Japan and advances the Company�s strategy to expand its business in the Asia-Pacific region. Based in Tokyo, NDF is a leading provider of securities pricing, reference data and related services to many Japanese banks, asset and funds management companies, insurance companies, custody banks, trust banks and securities firms. Prior to the acquisition, Interactive Data and NDF were partners in a re-distribution relationship in Japan for more than 14 years, providing financial institutions with global end-of-day securities pricing, evaluations and reference data for clients� mission-critical investment operations, including portfolio valuation and accounting. Interactive Data has changed the name of NDF to Interactive Data Japan KK and plans to retain the personnel and operate the business in a manner consistent with historical practices. At present, NTT DATA Corporation retains a 10% interest in NDF with other minority shareholders collectively owning the remaining 11%. Interactive Data plans to work with NTT DATA Corporation for a smooth transition of the business in Japan and to acquire the remaining equity of NDF over the coming years. The purchase price to acquire 100% of NDF is expected to be 3.0 billion yen (or approximately U.S. $32.6 million assuming constant foreign exchange rates) in cash. Interactive Data Corporation Forward-looking and Cautionary Statements This press release contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and Federal securities laws, and is subject to the safe-harbor created by such Act and laws. Forward-looking statements include all statements that are not historical and include our statements discussing our goals, beliefs, strategies, objectives, plans, prospects and opportunities, and our statements relating to (i) the fact that the subsequent closing of the minority interests may not occur on a timely basis or at all; (ii) our ability to retain key employees of NDF; and (ii) our ability to further expand our business in Japan and the Asia Pacific market. These statements are subject to known and unknown risks, uncertainties, assumptions, and other factors that may cause actual results to be materially different from those contemplated by the forward-looking statements. Such factors include: (i) the fact that the subsequent closing of the minority interests may not close on a timely basis or at all, (ii) our ability to successfully integrate the NDF business, (iii) our ability to retain key employees of NDF, and other factors identified in our most recent Annual Report on Form 10-K and Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission. We undertake no obligation to update these forward-looking statements. 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 real-time market data, time-sensitive pricing, evaluations and reference data for millions of 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 2,300 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, is Interactive Data Corporation's majority stockholder. Interactive Data Corporation is celebrating its 40th anniversary in 2008. For more information about Interactive Data Corporation and its businesses, please visit www.interactivedata.com.