CMS BondEdge Announces General Release of BondEdge Version 4.5.

Business Editors

LOS ANGELES--(BUSINESS WIRE)--Aug. 21, 2001

CMS BondEdge, an affiliate of FT Interactive Data and division of Interactive Data Corporation (Nasdaq: IDCO), today announces the general release of version 4.5 of its BondEdge(TM) fixed income portfolio analytics system. Version 4.5 offers further enhancements to BondEdge's Global Analytics offering, new security pricing and modeling tools and an update to CMS's proprietary Mortgage Backed Securities (MBS) prepayment model. As highlighted in the press release dated July 17, 2001, (www.cmsbondedge.com) this release also includes a connection to the Visible Markets electronic bond trading system.

Global Analytics - Major additions to the existing Global Analytics in BondEdge include expanded sector reporting, non-U.S. futures contracts and new global indices. In addition, the Currency Forward Rate Agreement (FRA) model has been expanded to accommodate an exchange of any two currencies and now includes a CMS BondEdge Pricing model. The database has been expanded to include futures contracts for German Bunds and U.K. Gilts, and JP Morgan's Global Government Bond Index has been added to the list of BondEdge indices.

Laurie Adami, president of CMS BondEdge comments, "Much of this release related to the globalization of BondEdge which will enable us to market and service BondEdge overseas. Coincident with the release of this version, we are pleased to announce the addition of sales staff in London to pursue the non- U.S. market for fixed income portfolio analytics."

Security Models and Data - Version 4.5 features enhancements to the CMS BondEdge proprietary MBS prepayment model that incorporates recent market data and yield curve conditions. Coverage of the high yield corporate bond market has been enhanced, with daily prices and descriptive data for over 3,500 high yield securities (provided by sister company, FT Interactive Data), now available via the BondEdge extended database. Corporate bonds can now be priced using a spread against the LIBOR/Swap curve, in addition to spread pricing based on the US Treasury curve. Lastly, version 4.5g includes enhanced reverse-engineering tools for asset-backed securities and CMOs that will allow CMS BondEdge to add deals to the database more quickly.

Teri Geske, senior vice president of Product Development, comments, "Enhancements to the BondEdge database and security models are part of our ongoing commitment to provide BondEdge clients with the most comprehensive tools available to analyze their fixed income portfolios. As market conditions shift, and demands change, we aim to respond quickly with quality data and analytic capabilities."

About CMS BondEdge

For over 20 years, CMS BondEdge has been recognized as a leader in fixed income analytical software. Long known for the BondEdge system, CMS BondEdge is trusted as an independent source of research, analytics and valuation tools by over 550 institutions in the U.S. and Canada. CMS BondEdge is an affiliate of FT Interactive Data and division of Interactive Data Corporation (Nasdaq:IDCO), a leading global provider of financial and business information to institutional and individual investors. More information on CMS BondEdge is available at www.cms-info.com. Corporate information on DBC is available at Interactive Data Corporation is available at www.interactivedatacorp.com.

About Interactive Data Corporation

Interactive Data Corporation is a leading global provider of securities pricing, financial information, and analytic tools to institutional and individual investors. The company supplies time-sensitive pricing, dividend, corporate action, and descriptive information for more than 3.5 million securities traded around the world, including hard-to-value, unlisted fixed income instruments. The company links to most of the world's best-known financial service and software companies for trading, analysis, portfolio management, and valuation.

Interactive Data Corporation is headquartered in Bedford, Massachusetts. Through its branded businesses, FT Interactive Data, CMS BondEdge, and eSignal, Interactive Data Corporation has approximately 1,600 employees in 22 offices in North America, Europe, Asia, and Australia. Pearson plc (NYSE: PSO), an international media company, whose businesses include the Financial Times Group, Pearson Education, and the Penguin Group, owns approximately 60% of Interactive Data Corporation.