eSIGNAL ANALYTIC/CHARTING SOFTWARE COMBINES WITH THE TRADE-LINK SERVICE FROM OPTIONSXPRESS Alliance Combines Industry Leading Analytic/Charting Software with Barron's 2003 Top Online Broker Hayward, Calif., September 9, 2003 -- eSignal, a division of Interactive Data Corporation (NYSE: IDC) and a leading provider of streaming, real-time financial market data, news, analytics and decision support tools to professional and individual traders, today announced that it has teamed up with optionsXpress, one of the largest retail options brokerage firms, to launch an interface between optionsXpress' Trade-Link execution service technology and eSignal's market data and advanced analytic/charting software. The power of this interface enables eSignal subscribers to place trades with optionsXpress, check trade status and view their portfolios right from within the eSignal application. "optionsXpress customers expect to have state of the art technology available in order to meet their trading needs," said David Kalt, president of optionsXpress. "We are pleased to join eSignal to provide the best of both of our worlds with top-tier analytics and fast and reliable one-click trading." "Teaming with optionsXpress provides our subscribers the opportunity to trade with an award-winning broker focused on options trading," said Chuck Thompson, president of eSignal. "Combine that with one of the industry's best real-time market data, back testing, advanced charting and alert tools and active traders now have an all-in-one solution to help traders identify potential opportunities faster and execute their trades more effectively." eSignal's direct access trading technology seamlessly interfaces with optionXpress' Trade-Link execution trading technology. Together, the two technologies allow subscribers to make informed trading decisions, using alerts, advanced charting and back testing tools. They can act on those decisions by instantly executing trades utilizing optionsXpress from within the eSignal application. Subscribers may also "paper trade" their accounts, allowing them to execute a virtual trade and test trading strategies without the risks associated with live trading. With paper trading, traders monitor their accounts' performance to learn which transactions produced favorable results. For the options trader, eSignal provides both composite and regional stock options data. The full option chain can be displayed on an underlying symbol or users can set up filters to control the display of the options based on volume, open interest, expiration month and strike price. Using eSignal's pop-out windows feature, users can extract the eSignal options window and leave it open on their desktop to monitor trading throughout the day. The trading interface allows trades to be executed through optionsXpress right from the options window. Barron's recently named optionsXpress the top online option broker in the 2003 Barron's "Online Broker Survey," with an unprecedented four-and-a-half star rating out of five. In addition, optionXpress was selected as the favorite options site by Forbes "Best of the Web" in the March 2002 edition, the most recent review. eSignal was selected as a finalist in the "Best Online Professional Financial Information Services" category for the Software & Information Industry Association's 18th Annual Codie Awards given earlier this year. Furthermore, in Technical Analysis of Stocks and Commodities 2003 annual "Readers Choice Awards", the magazine's readers voted eSignal products and services as providing "Best Real-Time and Delayed Data" and eSignal s Advanced GET as "Best Trading System for Stocks" and "Best Trading System for Futures." About optionsXpress: optionsXpress (www.optionsxpress.com) is the online brokerage for self-directed investors who want to use options to protect portfolios, increase investment income and maximize returns on stock movements. With its suite of proprietary, innovative tools and features, optionsXpress reduces the mystery and complexity of options and ensures that users can identify, evaluate and then execute suitable options investment opportunities. optionsXpress was named the top online broker in the 2003 Barron's online broker survey, with an unprecedented four-and-a-half star rating (out of five), and the favorite options site by Forbes "Best of the Web." About eSignal: The eSignal division (www.esignal.com) of Interactive Data Corporation (NYSE: IDC) (www.interactivedatacorp.com) is a leading global provider of financial and business information to professionals and active individual investors. Building on a 20-year legacy of delivering time-sensitive financial information, eSignal provides streaming, real-time market data, news and analytics. The company's suite of products includes eSignal, eSignal Market Scanner, Advanced GET, eSignal Pro, Turbo Feed and MarketCenter. # # #