Interactive Data Team Teams Up With Pluris

INTERACTIVE DATA TEAMS UP WITH PLURIS TO PROVIDE DAILY INDEPENDENT VALUATIONS FOR MUNICIPAL AUCTION RATE SECURITIES

New York, September 17, 2009 – Interactive Data Corporation (NYSE: IDC), a leading provider of financial market data, analytics and related solutions, today announced that its Pricing and Reference Data business now offers clients daily valuations for Municipal Auction Rate Securities (ARS) including Student Loan Auction Rate Securities (SLARS), from Pluris Valuation Advisors LLC, a provider of market-based valuations of illiquid securities.

“Interactive Data continues to receive requests from clients for valuations of Municipal ARS, and our ability to work with a firm recognized for its capabilities in valuing these hard-to-value securities underscores our commitment to responding to client needs,” said Shant Harootunian, managing director, Evaluations, Interactive Data.  “Our Evaluated Services team has the depth of experience in providing daily valuations for a wide range of securities, and Pluris has the necessary data and valuation metrics to provide valuations for this particularly challenging asset class.”

“Since the auctions for these securities began to fail last year, we have generated monthly and quarterly valuation reports based on ARS transactions including SLARS in the secondary markets, and we are pleased to make these, along with daily valuations for SLARS, Municipal ARS and other difficult-to-value securities available to Interactive Data’s clients,” said Espen Robak, Pluris president.  “Working with Interactive Data provides us a venue for utilizing our proprietary data and pricing algorithms to benefit clients that need daily pricing data.”

Interactive Data’s ongoing dedication to client needs and continuing review of market changes also led to a recent coverage expansion for mortgage-backed securities. The Company recently added coverage for 18 new MBS pass-through pool types, totalling 1,625 securities — including securities backed by relocation and jumbo loans.

Interactive Data provides global security evaluations designed to support financial institutions and investment funds’ pricing activities, research and portfolio management. The Company serves as an independent source of daily evaluations for more than 2.8 million fixed income and international equity securities.  These services can enable clients to reduce the time, expense and resources necessary to support their valuation processes.

About Interactive Data Corporation

Interactive Data Corporation (NYSE: IDC) is a leading global provider of financial market data, analytics and related solutions 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. Interactive Data, headquartered in Bedford, Mass., has approximately 2,400 employees in offices located throughout North America, Europe, Asia and Australia.  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’s Pricing and Reference Data business 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 collects, edits, maintains and delivers data on more than 6 million securities, including daily evaluations for approximately 2.8 million fixed income and international equity issues. Interactive Data specializes in ‘hard-to-get’ information 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 Interactive DataSM and the Interactive Data logo are service marks of Interactive Data Corporation.

Pluris Valuation Advisors LLC of New York, N.Y., is a full-service valuation firm specializing in the valuation of restricted securities of public companies, auction-rate securities, bankruptcy claims, limited partnerships and other financial instruments that lack liquidity.  Pluris valuations are used for financial reporting, tax purposes, business transactions and litigation support.  Our proprietary LiquiStat™database enables Pluris to value even the most illiquid assets based on market data, in compliance with both U.S. Generally Accepted Accounting Principles (GAAP) or IFRS.  Pluris clients include public reporting entities, hedge funds, private equity funds, high net-worth clients and their advisors worldwide.