The OnixS ultra low latency Java FIX Engine is a high performance implementation of the FIX Protocol in Java with an open and extensible API.

Main features include:

• Easy-to-use API
• High throughput, low latency performance for Direct Market Access (DMA), High Frequency Trading (HFT) and Algorithmic Trading applications
• Venue-specific samples
• Comprehensive documentation
• FAST 1.1 decoding and decoding (pre-certified with CME and ICAP EBS, fully compatible with Eurex EBS, NYSE Liffe XDP, NGM, etc)
• SSL encryption
• Supplied as a Java class library (JAR)
• Supports multiple FIX sessions simultaneously
• Supports multiple FIX Protocol versions simultaneously
• Support all current FIX Protocol versions (4.0, 4.1, 4.2, 4.3, 4.4, 5.0, 5.0 SP1, 5.0 SP2, FIXML)
• Supports all tag and message types of each FIX Protocol version (equities, fixed income, derivatives, FX etc)
• Flexible support of user-defined tags and user-defined message types
• Configurable validation of required fields
• Persistence (the ability to log data to a flat file and restore the state after fail-over)
• Supports FIX dialects (different interpretations of FIX Protocol) on a per-session bases
• Session Scheduler
• Versatile diagnostics and logging

• manages network connections
• manages the session layer of the FIX Protocol
• creates (outgoing) messages
• parses (incoming) messages
• validates messages
• persists messages
• session recovery

OnixS Next Generation Java FIX Engine is based on the latest achievements of Software Engineering:

• Advanced threading architecture
• Parsing, validation and assembling of FIX messages is extremely flexible, since it dynamically uses information provided in FIX XML Specifications, thus end-user may easily tune the FIX Parser for any FIX Dialect.
• Design Patterns are used extensively to provide elegant, efficient and reusable solutions.