IDC Interactive Data Corp.

High-Quality, Timely Data to Help Strengthen TheMuniCenter's Market Leadership Position FT Interactive Data, part of Interactive Data Corporation (NYSE: IDC), and TheMuniCenter L.L.C. today announced that TheMuniCenter will utilize FT Interactive Data's Securities Information Retrieval Service (SIRS(TM)) as the primary source of reference data for its electronic fixed income trading marketplace. With SIRS, a fully automated offering for delivering comprehensive reference data, TheMuniCenter will be able to provide its clients access to a broad set of high quality data on a wide range of fixed income securities, including U.S. government, municipal and corporate bonds. FT Interactive Data's multi-asset reference data offering will also be used as a main source for TheMuniCenter's mission-critical securities masterfile, which can enable them to validate trade orders, bids and offerings, research securities in connection with trading activities, and create derived data items such as yield, accrued interest and duration. "Providing our clients with access to high quality, timely, and relevant data can help them analyze fixed-income securities to help them make more informed trading decisions," said Tom Vales, chief executive officer, TheMuniCenter. "We have been working closely with FT Interactive Data to ensure that our broad spectrum of clients, from the largest Wall Street dealers to the smallest independent advisors, have access to this information in an easy-to-use online format that helps them use our offerings more efficiently." "We are very pleased to be providing TheMuniCenter with access to a single, comprehensive source of reference data that is flexible enough to manage the continued growth and sophistication of fixed income securities," said Ray D'Arcy, president of sales, marketing and institutional business development, Interactive Data Corporation. "We believe that FT Interactive Data's high quality information on a broad range of fixed-income securities will help strengthen TheMuniCenter's position as a premier online fixed income trading marketplace." Additional information about FT Interactive Data's SIRS is available at: http://www.ftid.com/pdfs/SIRS-5123-200508.pdf. About TheMuniCenter TheMuniCenter is an established electronic marketplace created for the purpose of facilitating live fixed income trading. TheMuniCenter's objective is to provide qualified market participants with equal access to aggregated content, liquidity, and distribution on a single easy to use site, bringing operating and business efficiencies to both dealers and buy-side customers. TheMuniCenter also offers a number of sophisticated transparency tools, giving its users access to real-time market content as well as to the ability to execute on that content. 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, dividend, corporate action 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, FT Interactive Data, ComStock, CMS BondEdge and eSignal, Interactive Data has approximately 2,200 employees in offices located throughout North America, Europe, Asia and Australia, and is headquartered in Bedford, MA. 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. FT Interactive Data provides global securities pricing, evaluations, dividend, corporate action and reference data designed to support financial institutions' and investment funds' pricing activities, securities operations, research and portfolio management. FT Interactive 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. FT Interactive Data specializes in 'hard-to-value' instruments and 'hard-to-get' information from emerging markets. Evaluated pricing is provided in the U.S. through FT Interactive Data Corporation and internationally through Interactive Data (Europe) Ltd. and Interactive Data (Australia) Pty Ltd. For more information, please visit www.ftinteractivedata.com.