Exegy Optimizes Execution Stack Performance with Advanced Connectivity and a 71% Latency Reduction
New nxAccess capabilities enable firms to dynamically switch to the fastest available exchange session and private links in real-time.
NEW YORK and ST. LOUIS – April 8, 2026 – Exegy, a leading provider of market data, trading technology, and managed services for the capital markets, today announced a significant performance enhancement to nxAccess, its FPGA-based trading engine. The update introduces the Session Override feature and expanded connectivity options, delivering an impressive 71% reduction in execution-stack latency to help firms capture every market opportunity.
As electronic trading infrastructure grows increasingly complex, the ability to choose the optimal path to local and remote venues is a significant driver of execution performance. The latest evolution of nxAccess addresses this by giving firms the agility to bypass traditional hardware constraints and pivot to the fastest available session or network link at the moment of execution.
“In today’s fragmented markets, the fastest route at market open isn’t necessarily the fastest at midday. Relying on static configurations creates ‘latency leakage’ that firms can no longer afford. nxAccess bridges this gap by turning connectivity into a dynamic asset rather than a hardware bottleneck,” said Olivier Cousin, Director of Product, FPGA Solutions at Exegy. “This reduction allows firms to maintain deterministic performance even during high-burst volatility, ensuring orders are filled at intended prices.”
The centerpiece of this release is Session Override, a built-in capability of nxAccess that allows firms to monitor session performance in real-time. Because local exchange latency can fluctuate throughout the day, Session Override enables an algorithm to select the best-performing session the instant a trigger occurs.
Key benefits and enhancements of the new nxAccess release include:
Dramatic Latency Improvement: Achieves up to a 71% reduction in execution-stack latency, measured from Start-Of-Packet (SOP) to Start-Of-Packet (SOP) on the switch, ensuring deterministic performance for the most demanding environments.
Dynamic Session Optimization: The new Session Override feature allows firms to use their own software to measure session performance in real-time and automatically pivot to the fastest available path without the need for hardware re-coding.
Expanded Connectivity for Premium Links: Beyond standard TCP, nxAccess now supports UDP-based multicast and raw Ethernet frame transmission “out of the box”, allowing firms to leverage ultra-low latency wireless and private links immediately.
Accelerated Time-to-Production: As an off-the-shelf FPGA platform, nxAccess combines the raw speed of hardware with the flexibility of software, allowing firms to deploy these performance improvements without the long development cycles typical of custom FPGA builds.
nxAccess is Exegy’s premier FPGA-based trading engine, designed to load order templates via software while using hardware-level logic to trigger, update, and transmit orders with nanosecond precision.
To learn more about how nxAccess and the Session Override feature can optimize your execution strategy, contact Exegy or visit exegy.com.
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Editorial contacts:
Alice Jiga / Chrissa Diakanastasis
Moonlight IQ
Email: exegy@moonlightiq.com
Tel: +44 (0) 20 7250 4770
About Exegy Inc.
Exegy is the capital markets platform that links elite trading firms to the global venues where they transact. By addressing the full spectrum of speed requirements and offering expert managed services, we partner with our clients to achieve better trading outcomes than they can on their own. Our platform helps clients process, normalize, distribute, and act on real-time data with deterministic performance as volumes, volatility, and complexity rise. Our flexible integration options, from fully managed solutions to FPGA building blocks, allow us to partner closely with institutional and retail brokerages, principal traders, asset managers, and trading venues.
For more information, visit exegy.com.
