The FIX Protocol Standard

The FIX Protocol (Financial Information eXchange) is an industry standard Protocol used for sending messages between Client and Broker. You can use the FIX Protocol as an alternative to LYNX' Proprietary API. With the FIX you can:

Currently FIX Versions 4.0 through 4.4, with a strong preference towards 4.2, are supported. Please contact us to receive documentation that provides information regarding messages supported by LYNX and their particular implementation.

Supported Order Types:

FIX supports the following basic order types:

  • Market
  • Limit
  • Stop
  • Stop Limit

We Support a number of advanced order types via FIX. The order types listed below can be created using the standard New Order – Single message with some modifications or additions to the tags used.

Through the use of the Pegged order type, the following order types can be created:

  • Primary Peg (Relative)
  • Market Peg
  • Midpoint Peg
  • Trailing Stop
  • VWAP

The following order types can be created using additional standard FIX tags:

  • Hidden
  • Iceberg
  • Discretionary
  • OCA (One Cancels All)

In addition, there's custom tags (6000+) to allow for the creation of:

  • Conditional Orders
  • Auto Stops/Bracket Orders
  • P.I.P (Price Improvement on the BOX)
  • Relative to Stock (Delta) order

For full documentation regarding the FIX Protocol, as well as the latest updates, please visit their website at: https://www.fixtrading.org/standards/#

This page was last updated 18th June, 2019.