Exegy announced an update to its FPGA-based trading engine, nxAccess. The update introduces the Session Override feature and expanded connectivity options, which the company said reduce execution-stack latency by up to 71 percent.

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The announcement follows Exegy’s recent launch of Nexus, an FPGA-powered market data platform designed for high-volume, high-volatility trading. The platform processes data in microseconds and reduces datacenter footprints.

While aimed at institutional clients, retail brokers could benefit indirectly through improved liquidity, lower costs, and faster execution, potentially resulting in tighter spreads and more consistent pricing during volatile market conditions.

Session Override Enhances Execution During Volatility

As electronic trading infrastructure becomes increasingly complex, the ability to select the fastest path to local and remote venues is a key driver of execution performance.

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The update allows firms to bypass traditional hardware constraints and pivot to the optimal session or network link at the moment of execution. Olivier Cousin, Director of Product, FPGA Solutions at Exegy, said: “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.” He added that the reduction “allows firms to maintain deterministic performance even during high-burst volatility , ensuring orders are filled at intended prices.”

Ultra-Low Latency Connectivity Now Supported

The Session Override feature allows firms to monitor session performance in real time and automatically select the best-performing session when latency fluctuates. The update also adds support for UDP-based multicast and raw Ethernet frame transmission, enabling the use of ultra-low latency wireless and private links.

As an off-the-shelf FPGA platform, nxAccess combines the speed of hardware with software flexibility, allowing firms to deploy improvements without long development cycles. The engine is designed to load order templates via software while using hardware logic to trigger, update, and transmit orders with nanosecond precision.