OneClearstream migration timeline

The OneClearstream service level provides customers with a single point of access to all T2S markets with comprehensive instrument coverage.

Over the course of 2018 we will be activating our integrated, OneClearstream, service offering in new markets as we harmonise our services allowing customers to benefit from advantages across multiple areas of our business.

As more markets migrate to OneClearstream, the scope of available assets accessible via our German CSD will significantly increase with both new links and new asset types becoming available to customers. Those securities held at our German CSD will be accepted with the collective safe custody (CSC) status.

As part of the market rollout, we will be going live with our new asset servicing partnership model to offer the best possible asset services for settlement in T2S via the expertise of our local partners. This will provide customers with full harmonisation of asset services and connectivity channels across Clearstream.



Migration date

Spain (Iberclear)30 November 2020
Portugal (Interbolsa)14 December 2020
Eurobonds Phase 214 December 2020
SlovakiaQ2 2021*
SloveniaQ2 2021*
DenmarkQ4 2021*


* Exact dates and additional markets will be announced in due course.

Further information

More detailed information regarding the rollout of our OneClearstream service can be found here under operational information > latest announcements > CBF OneClearstream or on our dedicated OneClearstream customer documentation page.

For further information, customers may contact Clearstream Banking Client Services or their Relationship Officer.