IDC Interactive Data Corp.

Interactive Data Corporation (NYSE: IDC), a leading provider of financial market data, analytics and related services, today announced that Keith Webster has been named managing director of its Fixed Income Analytics business, effective immediately. Webster, age 44, succeeds Laurie Adami as the leader of Interactive Data Fixed Income Analytics. Adami will be leaving the Company due to health reasons following a brief transition period. In his new role, Webster will have direct responsibility for business strategy, financial performance, and business and product development for Interactive Data Fixed Income Analytics. Webster reports directly to Mark Hepsworth, president of Interactive Data�s Institutional Business, and is based in Interactive Data�s Santa Monica, California office. �We are very pleased that Keith has assumed the leadership of Interactive Data Fixed Income Analytics,� said Mark Hepsworth. �We believe that Keith�s management experience and industry expertise will help us grow this business as we expand our product offerings, capitalize upon opportunities in the fixed income and derivatives markets, and leverage expertise and technical resources from across our Company.� Hepsworth continued, �We thank Laurie Adami for her contributions for the past nine-plus years as president of Interactive Data Fixed Income Analytics and for 24 years of service to the Company. Laurie has played a key role in the success and growth of our business over the years, and we wish her well.� Webster joins Interactive Data from Dun & Bradstreet, where he served four years as managing director for its Enterprise Risk and Compliance Solutions business. Prior to Dun & Bradstreet, he spent seven years at Thomson Financial (now part of Thomson Reuters). During this period, Webster served as managing director of Thomson Financial Research and oversaw its Vestek portfolio analytics business. Webster holds a bachelor�s degree in physics from The University of Chicago and is a member of the New York Society of Security Analysts, CFA Institute, and the Global Association of Risk Professionals. 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. Interactive Data Fixed Income Analytics is a leading provider of fixed income portfolio analytics to the investment community with nearly thirty years� expertise. Its client base includes more than 500 leading banks, investment managers, brokerage firms, insurance companies and pension funds throughout North America and Europe. Interactive Data Fixed Income Analytics is long since known for its flagship product, BondEdge�, which allows customers to identify opportunities and analyze portfolio risk using robust modeling techniques. Interactive Data Fixed Income Analytics also provides direct access to sophisticated risk measures for a wide universe of fixed income securities via its analytical datafeed service. For more about Interactive Data and its businesses, please visit www.interactivedata.com. Interactive Data SM, the Interactive Data logo, and BondEdge�, are service marks of Interactive Data Corporation.