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    Market Data Resources

    Market data is a critical product provided to market participants that allows them to understand the displayed orders placed and trades executed on the IEX Exchange book.
    IEX Exchange’s proprietary market data feeds are designed to provide transparency and enable a high level of performance without leading information.

    Learn more about our market data products >

    IEX Exchange Data Documents

    Users must complete, execute, and submit the necessary agreements and forms before accessing DEEP or TOPS.

    IEX Market Data Policies

    IEX Market Data Policies

    IEX Data Subscriber Agreement

    IEX Data Subscriber Agreement

    Previous IEX Exchange Data Documents

    Effective prior to January 3, 2022

    IEX Market Data Policies (effective prior to January 3, 2022)

    IEX Market Data Policies (effective prior to January 3, 2022)

    IEX Data Subscriber Agreement (effective prior to January 3, 2022)

    IEX Data Subscriber Agreement (effective prior to January 3, 2022)

    IEX Data Recipient Agreement and Forms (effective prior to January 3, 2022)

    IEX Data Recipient Agreement and Forms (effective prior to January 3, 2022)

    Specifications

    Data FeedVersionProtocol OptionsSample PCAP
    IEX DEEPDEEP v1.08IEX-TP v1Jan. 27, 2018
    IEX DEEP SNAPDEEP SNAP v1.2TCP/IP
    IEX TOPSTOPS v1.66IEX-TP v1Jan. 27, 2018
    IEX TOPS SNAPTOPS SNAP v1.2TCP/IP

    Prior Specification Version

    Data FeedPrior Versions
    IEX TOPSTOPS v1.5

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