Used by capital markets firms globally

What's new

An Introduction to Aeron

For people new to Aeron who want a clear technical overview of where this tech fits and what it does. In 30 minutes, Aeron developers walk you through the open-source stack powering some of the most demanding workloads in capital markets: from market data distribution to order management, both on-prem and in the cloud.

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Aeron and QuestDB: building open infrastructure for capital markets data

Open capital markets data infrastructure with Aeron and QuestDB for low-latency trading, SQL analytics, and audit-ready replay.

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What’s new in Aeron: Highlights from the London Meetup 2026

Learn about Aeron 1.49.0 and 1.50.0 enhancements, incl. named Archive and Cluster clients, Aeron response channels over IPC, standalone C++ API removal and the benefits of Persistent Subscriptions; a new open-source feature.

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Persistent Subscriptions: Managing live and replay transitions in Aeron

Discover how Aeron’s new Persistent Subscriptions let late‑joiners switch seamlessly between replay and live streams over UDP or IPC, add automatic slow‑consumer recovery via a clean API, and match ReplayMerge latency with only a modest memory increase.

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Version 1.51.0 released

Aeron 1.51.0 adds a new feature sponsored by Nonco, which is included in the open source version: Persistent Subscriptions, for seamless live/historical streams. This release also includes new C/C++ client APIs for async control, and stricter protocol and cluster reliability.

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The CME-Google Cloud acceleration: why market makers need to speed up cloud migration and how to bridge the cloud performance gap

CME’s accelerated Google Cloud move forces market makers to fast-track low-latency migration; Aeron closes the cloud performance gap with sub-20µs messaging.

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Open-source & sponsored by Adaptive.
The Aeron suite of software components includes:

Aeron Transport

High-performance messaging with microsecond latency and extremely high throughput.

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Aeron Cluster

Fault tolerant service container for distributed state replication.

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Aeron Archive

Zero message loss through reliable, ultra-fast data storage and message replay.

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Aeron Key Features

  • Low Latency Less than 100 μs in the cloud and 18 μs on physical hardware.

  • Highest Throughput Over 1 million msg/sec at microsecond latency.

  • Runs Anywhere On-premises, in the cloud and at co-location facilities.

  • 24/7 Availability Hot system upgrades & automatic failover for zero system downtime.

  • Brokerless Reduce hardware & OPEX costs associated with broker-based systems.

  • Easy to Implement Spend more time on valuable business logic and less on technical infrastructure.

  • Resilient Robust fault tolerance for mission-critical applications.

  • Secure End-to-end encryption for secure low-latency message communication.

Aeron Sequencer

Build your trading platform on the world’s best trading infrastructure.

Aeron Sequencer brings proven replicated state machine architecture to capital markets.

  • Accelerate time-to-market
  • Enable 24/7 market operations
  • Scale development
  • Reduce risk & cost of ownership
  • Ensure regulatory compliance
  • Power business growth
  • Gain business agility through application portability

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We partner with

Aeron Premium

For business or enterprise use!

Take your Aeron implementation to the next level.

  • Complete support with enterprise-level SLA
  • Additional Aeron software components
    – Aeron Transport Security
    – Aeron Transport Kernel Bypass
    – Aeron Cluster Warm Standby
  • Architectural design consulting
  • Developer resources
  • Discounted rates for training courses & professional services

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