At CJC, supporting market data infrastructure is a continual pursuit of operational excellence. The systems that underpin capital markets are mission-critical, and ensuring they remain resilient requires constant attention throughout their lifecycle – from design and implementation through to operation, optimisation, and eventual replacement.

Every day, our teams focus on monitoring, event management, problem management, capacity planning, and performance optimisation. Much of this work happens behind the scenes, but it is essential. Market infrastructure must be prepared to handle sudden spikes in activity, often triggered by events that are impossible to predict. A geopolitical development, unexpected economic announcement, or major market shock can transform a routine trading day into one of the busiest sessions of the year.

Mosaic – Observed market data message rates at a financial firm.

Some events, however, can be anticipated.

Major IPOs, index rebalances, elections, exchange migrations, regulatory deadlines, and significant market structure changes all provide organisations with an opportunity to prepare. While resilient infrastructure should always be capable of handling elevated demand, there are occasions when additional scrutiny is warranted.

Over recent weeks, we have seen many firms reviewing their readiness plans ahead of several anticipated market events. What is particularly noteworthy is that many of these organisations have already successfully navigated periods of extreme volatility and market disruption. When experienced operations and technology teams decide that an upcoming event deserves additional preparation, it is worth paying attention.

What Does Good Event Preparation Look Like?

Preparing for a major market event is about much more than watching dashboards more closely. The most resilient organisations typically introduce a structured programme of temporary controls and enhanced governance designed to reduce operational risk before the event takes place.

In our experience, preparation activities often include:

• Comprehensive health and capacity assessments across critical infrastructure.
• Enhanced monitoring and event-specific dashboards focused on key performance indicators.
• Validation of market data feed health, exchange connectivity, and downstream application dependencies.
• Review of historical utilisation trends and capacity forecasts.
• Increased operational reporting and status updates during critical trading windows.
• Dedicated command-and-control bridges to accelerate communication and decision-making.
• Primary and secondary SME coverage throughout market open and close periods.
• Review and testing of escalation procedures and incident response workflows.
• Temporary change freezes to minimise avoidable operational risk.
• Verification of resilience, failover, and recovery procedures.

Individually, these activities may appear straightforward. Collectively, they provide the visibility, governance, and operational resilience required to support periods of exceptional market activity.

When Is A Good Time to Review Your Estate?

Major market events often provide an opportunity to evaluate the health of the wider technology estate.

Systems that have operated reliably for years can gradually accumulate technical debt, configuration drift, monitoring gaps, or capacity constraints that remain hidden during normal trading conditions. Equally, operational processes that work perfectly well on a quiet day may be tested when trading volumes, user activity, and support demands increase significantly.
Periods of anticipated market activity provide the perfect catalyst to review infrastructure, validate operational procedures, implement long-planned improvements, and address potential weaknesses before they become incidents.

The reality is that major market events do not create operational weaknesses—they expose them.

The organisations that perform best are rarely those reacting on the day. They are the ones who prepared weeks in advance.

How CJC Can Help

Whether you require infrastructure health checks, capacity assessments, enhanced monitoring, operational readiness reviews, on-call specialist support, or a fully managed service, CJC works with financial institutions around the world to ensure their market data environments remain resilient when it matters most.

Our teams bring deep expertise across the technologies that power modern market data estates, including Bloomberg B-PIPE, LSEG RTDS, Exegy, ACTIV Financial, Solace, Kafka, and ITRS Geneos, across both physical and cloud-based market data infrastructure. This enables us to support clients with everything from feed distribution and platform performance to observability, capacity planning, and operational readiness.

For organisations seeking greater visibility, Mosaic, CJC's observability platform, provides enhanced monitoring, dashboards, reporting, and event management capabilities, helping teams identify potential issues early and make informed decisions before and during critical market events.

As the industry prepares for its next major market event, now is the time to ask a simple question:

Are you ready for launch?