T+1 in the EU, UK and Switzerland: Q1 2026

T+1 readiness is advancing across the EU, UK and Switzerland, but key delivery pressures remain. Engagement is high across all three markets, yet firms still need to convert readiness into practical build, testing and coordination activity.

Where does readiness stand today across the three markets? Which milestones remain under pressure, and what should firms now focus on as implementation moves closer?

This session brought together Celine Duquaine of Euroclear, Marko Niederheide of Clearstream, Matthew Johnson of DTCC, Simon Belser of SIX and Emma Johnson of The ValueExchange to discuss the latest Q1 2026 T+1 key findings and what they reveal about progress across the region.

The session highlights:

• 83% of UK firms, 80% of EU firms and 79% of Swiss firms are actively engaged in T+1

• Same-day allocations and confirmations remain a major focus, with more than a third of firms expecting to miss the end-2026 deadline

• Operational and market structure dependencies continue to shape progress across the three markets

• Firms now need to translate engagement into build, testing and coordination activity

Key takeaways:

• Regional engagement is high, but full readiness remains limited

• Core trade-cycle milestones are still under pressure across all three markets

• Delivery quality will depend on build progress, testing discipline and dependency management