TMX Datalinx and Interactive Data Corporation to Open Trading on Toronto
Stock Exchange Today

TORONTO , Nov. 23 /CNW/ - Today, Ray D'Arcy, President and CEO, Interactive Data Corporation (NYSE: IDC), Tom Kloet, CEO, TMX Group, and Eric Sinclair , Senior Vice President, TMX Datalinx, will open trading on Toronto Stock Exchange. Interactive Data is celebrating its agreement with TMX Datalinx to provide its clients with broad access to TMX Datalinx's suite of market data products.

Interactive Data currently offers a broad range of content from TMX Datalinx through its desktop solutions and low latency real-time data feeds. This data includes:

    
    -   Consolidated Data Feed from the TMX Information Processor suite of
        products;
    -   Toronto Stock Exchange and TSX Venture Exchange Level 1 and 2 data;
    -   Montreal Exchange data;
    -   S&P/TSX index data;
    -   Corporate and reference information, including CDS data licensed from
        TMX;
    -   TSX/CP Equities News, a news service developed jointly by TMX
        Datalinx and The Canadian Press (CP), which delivers comprehensive
        coverage of Canadian capital markets; and
    -   CanDeal data, a marketplace for Canadian fixed income securities
    

"Interactive Data is a leading global financial information services company and TMX Datalinx is very pleased that they provide a variety of TMX's robust Canadian market data to their clients," said Eric Sinclair .

"We are excited to participate in today's market opening. We enjoy an extensive relationship with TMX Group, redistributing a broad range of its content to our clients worldwide through our desktop solutions and low latency real-time data feeds," said Ray D'Arcy.

For Market Openings: Media may pick up a feed from the TOC (television operations centre) for all market open ceremonies. The feed is named TSX Transmit 2 and is produced at the TMX Broadcast Centre and sent live to the TOC. Those featured in the market opening move into position for the market open ceremony at approximately 9:27 a.m. and the markets will open with the sound of a siren (the traditional market open on Toronto Stock Exchange) at 9:30 a.m.

    
    About TMX Group (TSX-X)
    -----------------------
    

TMX Group's key subsidiaries operate cash and derivative markets for multiple asset classes including equities, fixed income and energy. Toronto Stock Exchange, TSX Venture Exchange, Montreal Exchange, Natural Gas Exchange, Boston Options Exchange (BOX), Shorcan, Equicom and other TMX Group companies provide trading markets, clearing facilities, data products and other services to the global financial community. TMX Group is headquartered in Toronto with offices in Montreal , Calgary and Vancouver . For more information about TMX Group, visit our website at www.tmx.com.

    
    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. For more information about Interactive Data Corporation and its businesses, please visit www.interactivedata.com

For further information: Carolyn Quick, Director, Corporate Communications, TMX Group, [phone], [email protected]; Brian Willinsky, Public Relations Manager, North America, Interactive Data Corporation, [phone], [email protected]