IDC Interactive Data Corp.

Interactive Data Corporation (NYSE: IDC), a leading provider of financial market data, analytic tools and related services to financial institutions, active traders and individual investors, today announced the expansion of the Company's existing one million share buyback program by up to one million shares of its common stock. 956,000 shares of Interactive Data common stock have been repurchased under the existing one million share buyback program, which was authorized in June 2005. As a result, there are now 1,044,000 shares available for repurchase under the Company's stock buyback program. Stuart Clark, Interactive Data's president and chief executive officer, commented, "The decision to expand our stock buyback program reflects our confidence in the strength of our business and in our long-term strategic direction. Expanding our buyback program will enable us to acquire shares at attractive prices without precluding us from examining other ways to invest our cash to fuel our future growth and create value for shareholders." Repurchases made under the Company's current share buyback program will be made in the open market or in privately negotiated transactions from time to time, subject to market conditions and other factors and in compliance with applicable legal requirements. Repurchases of common stock may also be made under a Rule 10b5-1 plan, which would permit shares to be repurchased when Interactive Data might otherwise be precluded from doing so under insider trading laws. Interactive Data intends to use cash on hand to fund any purchases. While the Company anticipates completing this program within one year, it is not obligated to acquire any particular amount of common stock as a result of the plan, which may be suspended or discontinued at any time. 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 is subject to the safe-harbor created by such Act and laws. These statements include our statements related to any potential future stock repurchase transactions, including our intention to repurchase shares of our common stock from time to time under, and the source of funding for, the stock buyback program as well as the timing, nature and financial impact of any such transactions related to the stock buyback program; and statements related to the investment of our cash to fuel future growth and create value for shareholders. These statements are subject to known and unknown risks, uncertainties and other factors that may cause actual results to be materially different from those contemplated by the forward-looking statements. Such factors include, but are not limited to: (i) the relative performance of the economy and the U.S. stock markets as a whole; (ii) market price of our common stock and other market conditions; (iii) the difficulty of predicting our future cash needs; (iv) the nature of other investment opportunities available to us from time to time; (v) our operating cash flow; and (vi) 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 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. For more information, please visit www.interactivedata.com. The FT Interactive Data business includes FT Interactive Data Corporation, a Delaware corporation. The ComStock business includes ComStock, Inc., a New York corporation.