Executive Guide: Choosing the Right FIX Engine for 2026 and Ahead

Capital markets firms can no longer treat FIX engines as interchangeable infrastructure. Rising regulatory pressure, T+1 settlement timelines, and increasing performance demands mean FIX technology now directly impacts execution quality, resilience, and cost.

This guide outlines how firms should approach FIX engine selection as a strategic decision. It covers the key considerations across trading models, regulatory requirements, performance, scalability, and operational behaviour, alongside a structured framework to evaluate vendors and reduce risk.

Download the guide to learn about:

• the key drivers behind FIX engine modernisation and why legacy assumptions no longer hold
• how to align FIX infrastructure with trading strategy, latency demands, and regulatory obligations
• what to measure beyond average latency, including tail latency and performance under stress
• how to assess scalability, cost efficiency, and behaviour under T+1 settlement conditions
• practical evaluation criteria for selecting the right FIX engine, including resilience, observability, and integration
• why FIX should be treated as long-term strategic infrastructure, not commodity software