About a-team Marketing Services
The knowledge platform for the financial technology industry
The knowledge platform for the financial technology industry

A-Team Insight Blogs

Solving the Multicast Challenge of Distributing Market Data in the Cloud

Subscribe to our newsletter

As cloud becomes increasingly widely adopted in the financial markets sector, one area of cloud migration that remains elusive is that of market data distribution. The key stumbling block is the fact that the industry almost exclusively relies on multicast for distributing real-time market data. Multicast is tried and tested, it works, it is well understood, and the majority of systems that process real-time market data have been built with multicast in mind.

However, many believe that this current state of affairs is holding the industry back, and that if multicast distribution can be made possible via the cloud, a wide range of new opportunities, particularly around real-time data and analytics, could be opened up, which could move the industry forward in new and exciting ways.

A common perception in the industry is that cloud and multicast distribution are mutually exclusive. But is this actually true? In a recent webinar held as part of the AWS EMEA Financial Services Symposium, Peter Williams, Chief Technology Officer at CJC, shared his recent experience of running a proof of concept (PoC) with AWS, which demonstrated how to solve the challenges of distributing financial data in the cloud with joint multicast.

The goal of CJC’s PoC was to determine if multicast over the cloud was viable not just from a technical perspective, but also from an economic one. And according to Williams, despite various challenges they faced along the way, the results were positive, with acceptable – and deterministic – performance and latency in real-world trading scenarios.

It remains to be seen whether multicast will continue to be the method of choice for distributing real-time market data going forward, even if it can operate in cloud environments. But it is encouraging to see that CJC and AWS have run such a successful PoC, which shows that multicast and cloud can work together, for specific use cases.

Subscribe to our newsletter

Related content

WEBINAR

Upcoming Webinar: Reviewing the Latency Landscape and the Next Generation of Ultra-Low Latency Infrastructure

Date: 17 September 2026 Time: 10:00am ET / 3:00pm London / 4:00pm CET Duration: 50 minutes Ultra-low latency is no longer the preserve of a handful of proprietary trading firms. As new asset classes electronify, data volumes surge, and regulatory expectations around execution quality and resilience tighten, the performance demands on trading infrastructure are broadening...

BLOG

Bridging the Data Monetisation Gap

The strategic argument for treating market data as a product rather than a cost has arguably been won. What remains stubbornly unresolved is what comes next: measuring the return on data investments, breaking the hoarding cultures that prevent data from flowing across the enterprise, and building infrastructure robust enough to support AI at scale. Those...

EVENT

Buy AND Build: The Future of Capital Markets Technology

Buy AND Build: The Future of Capital Markets Technology London examines the latest changes and innovations in trading technology and explores how technology is being deployed to create an edge in sell side and buy side capital markets financial institutions.

GUIDE

Fatca – Getting to Grips with the Challenge Ahead

The industry breathed a sigh of relief when the deadline for reporting under the US Foreign Account Tax Compliance Act (Fatca) was pushed back to July 1, 2014. But what’s starting to look like perhaps the most significant regulation of the next 12 months may start to impact our marketplace sooner than we think, especially...