Eurex Clearing Readiness Newsflash | C7: Corporate action harmonization production update

With this Newsflash, we would like to inform you about the strategic rollout of harmonized corporate action processing into the production environment, as part of C7 Release 12.0.

To support you in preparing the necessary steps on your side, we are sharing further details regarding this initiative. This is intended to ensure alignment and readiness across all impacted areas:

Key dates

• 13 November 2025
  • Last day corporate actions are performed following the “old” corporate action regime
• 14 November 2025
  • Conversion day for all existing stock options with fractional trading units
  • First day corporate actions are performed following the “harmonized” corporate action logic

Regular corporate actions until 13 November 2025

All standard corporate actions occurring on or before 13 November 2025 will be governed by the “old” corporate action framework:

• R-factor unequal to 1,00000000
• Increase of the version number
• Fractional trading unit
• Introduction of new contracts

Starting 14 November 2025, the harmonized corporate action logic will be implemented, introducing the equalization payment regime.

Conversion

Currently, 50 single stock options are in scope for this step. To shift to integer contract sizes, a one-off “conversion corporate action” will be applied to all affected products by 14 November 2025. The main features of these actions are:

• R-factor = 1,00000000
• No increase of the version number
• Therefore, no introduction of new contracts
• Generation of equalization payments (based on 14 November 2025 settlement prices)
• Value date for the payments: 18 November 2025

Reporting of the payments:

• RPTCA752 (EoD report 14.11.2025):

This report exclusively comprises positions for which the contract size has been modified, e.g. positions associated with contracts bearing version number '0' are not included. The equalization amount is only reported in the “AFTER”-record.

• RPTCB012 (EoD report 17.11.2025)
• RPTCD710 (EoD report 17.11.2025)

The product list attached is preliminary; the final list of products to be converted will be published on 13 November 2025.

Regular corporate actions to be performed on 14 November 2025

If a regular corporate action occurs alongside the “conversion corporate actions” on 14 November 2025, it will follow the newly introduced harmonized corporate action logic:

• R-factor unequal to 1,00000000
• Increase of the version number
• Rounded trading unit and equalization payment
• Introduction of new contracts

Effective 17 November 2025, only integer contract sizes will be available for the relevant options products.

Please note that the following products are out of scope of corporate action harmonization:

• Futures
• Basket options

All documents in connection with the introduction of C7 Release 12.0 are available for download on Eurex Clearing website www.eurex.com/ec-en/ under the following path:

Support > Initiatives & Releases > C7 Releases > C7 Release 12.0 > System Documentation.

Learn now more about C7 Release 12.0 on our dedicated initiative page. System documentation, circulars, timeline and much more information is here available for you: Support > Initiatives & Releases > C7 Releases > C7 Release 12.0​.

Clearing Members are kindly requested to review and update their contact details under the Member Section of Deutsche Börse Group to ensure accuracy and avoid outdated or incorrect information.

If you have questions or require further information, please contact us via e-mail: client.services@eurex.com.
 

Attachment: 

• Product list initial corporate action as of 2 October 2025

Kind regards,

Your Client Services Team

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Further information