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About IEX Exchange

Products

Resources

Boxes and Lines

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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