FIX 4-4

Version FIX 4.4 dominante en production trading.

Définition

FIX 4.4 ajoute le support multi-currency settlement, complex orders (multileg), allocation processing, registration instructions, news messaging, position management et user-defined fields. Format tag=value séparé par SOH (0x01). Compatible TCP socket via FIX session layer (Logon, Heartbeat, ResendRequest, Logout).

Origine

FIX Protocol Limited (devenu FIX Trading Community 2012), version 4.4 publiée 2003 succédant 4.3 (2002).

Usage

Standard pour ~70%+ des flux FIX en production. Brokers prime (Goldman, Morgan Stanley, Credit Suisse, UBS) supportent 4.2/4.3/4.4 historiquement.

Termes liés

• FIX Protocol — fondation.
• FIX 5.0 SP2 — version successor.
• FIXML — sérialisation XML.