Currenex ITCH – Market Data Specification

The Currenex Itch service uses a low latency protocol and is delivered over reliable high-speed physical networks such as LAN cross connects or metro area direct circuits.

Itch is supported on Transmission Control Protocol (TCP) as well as User Datagram Protocol (UDP), with minimal differences between the two (2). As a UDP service, Itch is intended for use on low datagram loss networks. Itch is not supported on Public Internet or low performance connections.

Itch achieves lower processing and latency times by not compressing messages.
Itch enables faster and easier message parsing and memory management through the use of fixed field sizes and the use of integer values where possible.
It also supports fast messaging delivery via UDP and reliable message delivery via TCP.

Customers co-located in the Currenex datacenter can achieve microsecond scale performance on Itch.

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