Findings from our review of a sample of trading venues, to highlight good practices and where they could deal with incidents more effectively.
We assessed the cyber and operational resilience of a sample of trading venues, to highlight good practices and see where they could deal with incidents more effectively. This follows our March 2026 Regulatory Priorities report for wholesale markets (PDF), where we committed to reviewing the cyber and operational resilience of wholesale firms, including trading venues.
Trading venues need to be able to withstand and recover from technical outages and other incidents, so markets keep working well.
Trading infrastructure is generally resilient and has coped with market volatility in recent years. However, there are lessons to learn. Venues need to understand all their dependencies and test resilience right across their supply chain. We are publishing this alongside Operational resilience: demonstrating resilience in practice, which has further observations on recognised investment exchanges.
We are not introducing new requirements. Venues should review our findings in the context of their own business models and broader changes in the market. Markets are evolving rapidly with the growth of AI, the emergence of new technology such as quantum computing, and the more widespread adoption of extended trading hours. It is vital for venues to assess risks associated with these changes and develop their resilience measures accordingly. Venues must also build on strong foundations by getting the fundamentals of resilience right.
Venues should also prepare for our operational incident reporting rules, which come into force on 18 March 2027, and consider any changes they need to make to their processes and systems.
Who this applies to
This review is relevant to UK trading venues, including:
- multilateral trading facilities (MTFs)
- organised trading facilities (OTFs)
- recognised investment exchanges (RIEs)
Some parts may be relevant to other firms that rely on trading venue data, connectivity, execution, or reporting services.
What we found
Trading venues understood the importance of operational resilience and had processes that they tested regularly. Areas of good practice included:
- Clear ownership of important business services.
- Clear links between mapping and testing.
- Formal tracking of lessons learned and remediation.
- Using non-time-based resilience metrics like volumes traded pre- and post-incident.
- Analysing the impact on clients.
- Regular testing of business continuity and disaster recovery arrangements.
The RIEs we reviewed had also largely established their operational resilience frameworks. However, some venues did not use these measures consistently or have evidence of how effective they are. The most common areas for improvement related to:
- Accountability and independent assurance.
- End-to-end understanding of business services and their dependencies.
- Managing intra-group and third-party services.
- Testing response and recovery arrangements.
- Incident escalation, lessons learned and remediation.
1. Governance, accountability, risk and assurance
Trading venues were more resilient when they had clear ownership, appropriate senior oversight and management information that helped them understand risks and priorities. For example, RIEs had largely established the foundations of their operational resilience frameworks – including governance cycles, ownership of important business services, and annual review processes.
Board oversight and escalation
Many venues had established committee structures to help the board oversee resilience risks, incidents and remediation. However, some had limited evidence that their boards had reviewed, challenged or approved resilience activities and remediation plans. Venues should define and document their escalation procedures, so that senior management and staff understand them and can raise significant issues quickly and consistently.
Limited second and third-line assurance
Several venues relied on frontline teams to identify, assess and test resilience risks. While these teams often had the best understanding of business services and processes, venues did not always provide sufficient independent challenge and assurance over these resilience risks. In some cases, venues lacked the expertise or oversight frameworks needed to do this effectively.
Using management information
Many venues used management information, including key risk indicators and regular risk reporting. The most mature venues used it for an end-to-end view of important business services and their dependencies. They used dashboards to identify issues and the impact they could have across systems, processes and third parties. This helped them understand their resilience risks and make more effective decisions, during business-as-usual operations as well as incidents.
2. Understanding of services and third-party management
Trading venues need an end-to-end understanding of the people, processes, technology, information, facilities, group services and third parties that support their important business services.
End-to-end service mapping
Trading venues generally understood their core services, but some did not have a complete view of the people and technology that deliver them, including third parties. Their mapping sometimes failed to consider wider group dependencies – so the venues could not fully understand how disruption elsewhere in the group could affect the UK regulated entity’s important business services.
Some venues did not know the dependencies between third parties supporting important business services, and had a limited understanding of their concentration risk. This made it hard to assess how a third-party failure could affect services across the business. Our Operational resilience: insights and observations publication explains how venues can identify and document these dependencies and strengthen their oversight. Venues should judge their remediation by how it improves resilience, rather than simply whether they have completed the exercise.
Third-party oversight and exit planning
While third-party contractual arrangements were generally in place, venues’ due diligence, contractual standards and exit plans were not always suited to the importance of the service.
Some venues only assessed their suppliers’ resilience after issues arose, and only had limited monitoring of resilience risks. Material third-party providers were not always included in resilience testing. This meant venues could not always spot weaknesses before they affected important business services and could not be confident about recovering services end-to-end.
Venues often only had high-level exit strategies for third-party providers, with limited evidence of how they would maintain or restore important business services without them. Exit strategies should include documented plans for:
- Moving to another provider.
- Bringing services in-house.
- Identifying key dependencies.
- Assessing the resources and time the venue would need to support an orderly transition.
Trading venues should consider whether they can implement their exit strategy effectively during an incident. Relying solely on contractual provisions does not give venues full assurance that they could recover from a disruption.
3. Continuity testing, change and recovery
Testing helps venues understand how disruption, including third-party failure or material change, could affect important business services and recovery arrangements.
Impact tolerances and severe-but-plausible testing
Venues had set impact tolerances and metrics for their important business services. More developed approaches had clearer rationales and considered potential harm to clients and markets more fully. Venues usually thought about market integrity, but they did not always see operational incidents as a distinct potential source of intolerable market harm.
Most venues had worked on how to limit the impact of a disruption and which aspects of important business services they should prioritise for recovery. However, they did not always link this to their impact tolerances, or have clear information for staff about how the recovery would work in practice. Venues should make sure their proposed recovery measures are clearly justified by the intended outcomes, and have evidence that they would limit intolerable harm.
Most venues regularly tested their business continuity and disaster recovery plans. Some used a wider range of severe-but-plausible scenarios, including third-party failure and physical events such as power or utility disruption. This helped them to assess whether services could remain within their impact tolerances and refine their plans.
Recovery testing
Venues did not always test whether they could recover services as part of their change activities. They focused on whether a change had been implemented successfully, rather than what would happen if it caused disruption. In some cases, they only had limited evidence that they had tested dependencies or validated their rollback plans.
4. Incident response, communications and learning
Effective incident response arrangements help trading venues:
- Assess and escalate outages quickly.
- Restore trading services.
- Keep market participants informed of changes to market times and mechanisms.
Most venues had established incident management processes, but some were weak on how they escalated incidents, documented their decisions and improved their resilience. Venues should use post-incident reviews and lessons learned to strengthen their response, communication and recovery plans.
Calibration of alert and escalation thresholds
Some venues relied heavily on predefined severity ratings and escalation thresholds to assess incidents. These can help them take a consistent approach, but all venues should also consider the wider impact on important business services, market participants and recovery objectives. Effective approaches combine thresholds with management’s judgement. This helps venues respond proportionately and focus on how to minimise disruption.
Informal incident escalation
Some venues relied on informal processes to escalate issues, such as staff group chats, without keeping governance records. These can be useful ways to convene decision-makers and address urgent actions, but venues must record the decision-making process properly. They should have formal processes for detecting and escalating incidents so that decisions and actions are documented and auditable, including ‘lessons learned’ reviews.
Root-cause analysis and remediation
Venues investigated root causes and had controls to capture the information they needed to review incidents. They also tested fixes before restarting systems. However, it was not always clear from venues’ risk frameworks how lessons from incidents informed their remediation practices.
In our consultation CP26/30 on Equity Market Transparency and market structure developments, we proposed clearer expectations for how trading venues prepare for and manage disruption. These include communications with market participants and arrangements to support orderly trading.