Trading Resources

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Market Data Resources

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 leaking information.

IEX Exchange Data Documents

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

Previous IEX Exchange Data Documents

Specifications

Data Feed
Version
Protocol Options
Sample PCAP
IEX DEEP+1
IEX-TP v1
Not yet available
IEX DEEP+ SNAP1
DEEP + SNAP v1.00
IEX-TP v1
IEX DEEP
DEEP v1.08
IEX-TP v1
Jan. 27, 2018
IEX DEEP SNAP
DEEP SNAP v1.3
IEX-TP v1
IEX TOPS
TOPS v1.66
IEX-TP v1
Jan. 27, 2018
IEX TOPS SNAP

1 effective Q4 2024, subject to filing and effectiveness of an SEC rule filing

Prior Specification Version

Data Feed
Version
IEX TOPS
TOPS v1.5