The “FIX Security White Paper (v1.9)” is intended to provide FIX Trading Community members with some of the common questions and answers regarding computer and network security when using FIX. Its scope is limited to the FIX Protocol and transmission of FIX messages between parties; issues such as security of operating systems, internal applications, databases, etc., are outside the scope of this document.

This extension pack, initiated by CME Group introduces new fields to support the options business, specifically the ability to define in security definition messages whether an option security is eligible for contrary instructions and when an option is in the money.

This extends the reporting capabilities of the Security Definition message.

It enhances the capabilities of the Security Definition message to specify the number of legs in a multi-leg instrument, the reason for rejecting a SecurityDefinitionRequest, a new unit of measure for carbon emissions, a new SecurityTradingStatus of No-Cancel, and a new TrdSubType for reporting OTC auction trades.

Update History

[Updated 2013-12-09] The FIXML Schema and FIX Repository files have been updated for the following changes: an update to the base FIX 5.0 SP2 (See 20131209 Errata Release Notes); an update to EP105 to correct an issue with incorrect coding of UndInstrmtGrp and InstrmtLegGrp components in the Repository; an error in EP106 was also corrected to resolve FIXML Schema validation issues with components assigned to incorrect component categories.

[Updated 2011-12-06] Added repository and FIXML Schema.