FIX Latest Online Specification
(as of EP284)
This is the starting page for FIX Latest, the specification of the application layer of the FIX Protocol. This provides the normative specification and is based on the previous specification documents “FIX Version 5.0 Service Pack 2 Specification with 20110818 Errata” (aka “Volume 1-7”) and the accumulation of all Extension Packs.
FIX Technical Standard Specifications by FIX Protocol Ltd. are licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License.
Introduction
Data Types, User-Defined Fields, Global Components
Pre-Trade
Indication
Event Communication
Quotation Negotiation
Market Data
Securities Reference Data
Market Structure Reference Data
Trade
Single General Order Handling
Program Trading
Order Mass Handling
Cross Orders
Multileg Orders
Post-Trade
Allocation
Settlement Instruction
Registration Instruction
Trade Capture
Confirmation
Position Maintenance
Collateral Management
Infrastructure
Business Rejects, Network Status, User Management, Application Sequencing
Downloads
Time Precision Technical Addendum 580.93 KB 4289 downloads February 24, 2017
Time Precision Technical Addendum. This Technical Addendum addresses the time precision granularity by extending the FIX data type for timestamps to picoseconds. The Technical Addendum is applicable...
FIX Latest Specification - Order State Changes 1.2 MB 1548 downloads November 19, 2023
Normative specification of the order state changes of FIX Latest. ...
FIX Latest Specification - Infrastructure 743 KB 1279 downloads November 19, 2023
Normative specification of the infrastructure business area of FIX Latest. ...
FIX Latest Specification - Introduction 5.6 MB 2334 downloads November 19, 2023
Introduction to FIX Latest and layouts of global components. ...
FIX Latest Specification - Pre-Trade 5.4 MB 1426 downloads November 19, 2023
Normative specification of the pre-trade business area of FIX Latest. ...
FIX Latest Specification - Post-Trade 4.7 MB 1341 downloads November 19, 2023
Normative specification of the post-trade business area of FIX Latest. ...
FIX Latest Specification - Trade 3.2 MB 2076 downloads November 19, 2023
Normative specification of the trade business area of FIX Latest. ...Code Lists
FIX supports external code lists for certain fields. Code lists are maintained outside of the FIX Specification review process to support faster extensibility. A complete list can be found here.
User Defined Fields
The table on this page summarizes currently used custom fields. At this time, the available tag numbers in the user defined range of 5000 to 9999 have all been allocated.
FIXatdl
FIX Algorithmic Trading Definition Language (FIXatdl) is an XML based standard to specify the user interface components for algorithmic trading. Please see the online specification or the download page for details.
FIX MMT
FIX Market Model Typology (MMT) initiative is a collaborative effort established by a broad range of industry participants (trading/reporting venues, data vendors and buy/sell side participants). The initiative is committed to achieving a practical and common solution for standards on post-trade data across all asset classes subject to MiFID II. Please look here for details.
Supported Legacy Versions
FIX currently supports three legacy versions FIX 4.2, FIX 4.4 and FIX 5.0 SP2 of the application messages that serve as the basis for standardization and automation of the electronic trading industry.
Unsupported Legacy Versions
The FIX Community discontinued support for earlier versions of FIX. The specifications are archived on the website and continue to be accessible.