Interactive Data And Expansión Sign Agreement

Interactive Data markets funds information from leading Spanish financial information group

Madrid, Spain, August 6, 2008 – Interactive Data Corporation (NYSE: IDC), a leading provider of financial market data, analytics, and related services, today announced that its Managed Solutions group has signed an agreement with UNEDISA (Unidad Editorial S.A.), publisher of Expansión, and a leading financial information company in Spain. Under the agreement, Interactive Data has rights to market and distribute funds data provided by Expansión in Spain and Portugal, as well as calculating, maintaining and distributing Expansión’s new star ranking of funds in Spain and Portugal.

The information provided by Expansión comprises pricing and fundamental data for all funds licensed in Spain and Portugal across all funds classes, and includes fundamental data, daily prices and history. Based on this information, Interactive Data calculates and maintains, for and on behalf of Expansión, the “Expansión Ranking”, a star ranking launched by the newspaper in January 2008. An annual awards event recognises the leading Spanish investment companies for their performance over the past year and is an important occasion for the Spanish funds industry.

Interactive Data will also enhance Expansión’s web portal, www.expansion.com, to provide extensive funds data – similar to the newspaper offering – as well as fact sheets, search and comparison functionalities using Interactive Data’s Funds Suite solution, a service that provides flexible tools for customised web offerings.

"We are delighted to have signed this agreement with Interactive Data, a prominent global financial information provider," said Jesús Martinez de Rioja Vázquez, editor at Expansión. "We believe that this relationship will add value to our end users in the funds industry, and the new star rankings can help our readers make informed investment decisions."

“The new relationship with Expansión gives us an excellent opportunity to significantly enhance our data offering with comprehensive funds information for the Spanish and Portuguese market. The relationship between Expansión and Interactive Data further strengthens our position as a leading funds data provider,” said Carsten Dirks, managing director, Interactive Data Managed Solutions. “Together with Expansión, we aim to increasingly establish this vast funds data offering as an indispensable reference source not only for customers in Spain and Portugal, but also for the global funds industry.”

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 Managed Solutions is a leading provider and operator of customized financial information systems. The group builds and manages Web-based financial market data portals and terminals for a range of organizations worldwide, from retail and investment banks to asset managers, online brokers, stock exchanges and media portals. By aggregating a broad set of financial data and client-proprietary content and offering visually stunning features such as charts, sophisticated search functions, decision-support tools and analytics, these intuitive applications can help customers optimize their business processes and realize efficiencies. Interactive Data Managed Solutions is managed as part of the Interactive Data Real-Time Services business, which provides a comprehensive suite of offerings that includes PlusFeed(SM), a consolidated, low latency datafeed.

For more information about Interactive Data Corporation and its businesses, please visit www.interactivedata.com.

Interactive Data^SM and the Interactive Data logo are service marks of Interactive Data Corporation.

About Expansión

EXPANSION is one of the leading economic newspapers in Spain, providing information on financial markets, companies, domestic and international industry, as well as economies. With a circulation of more than 50,000 issues in 2007, it is one of the most influential daily newspapers in the Spanish financial and business markets. In March 2008, EXPANSION organised the awards event – now in its nineteenth consecutive year – for the best performing investment funds and asset managers in Spain.

UNEDISA (Unidad Editorial S.A) is the publisher of EXPANSION and a leading publishing and media company in Spain.