Frankfurt (9 February 2022) – MV Index Solutions GmbH (MVIS®) announces the implementation of changes regarding the treatment of Mergers & Acquisitions and Spin-offs between rebalance announcement and implementation for indices calculated by Solactive AG, effective on 14 February 2022.

  • INDEX EVENT Column in the DCAF file gets a new entry type "Proforma Index Adjustment" which indicates Corporate Actions between rebalance announcement and effective implementation. Further information can be found in FIXING DATE COB and REBALANCING DATE COB.
  • FIXING DATE COB and REBALANCING DATE COB columns will be added to the DCAF file.


MV Index Solutions GmbH (MVIS®) has decided to adopt the amendment of the PRO-FORMA file naming convention to provide a robust and unified naming convention, to allow additional automation in the processes of our clients. Changes will be made as in the following:

Daily Pro-Forma File naming conversion:

Closing Pro-Forma File:

 New File NameOld File Name


Opening Pro-Forma File:

 New File NameOld File Name

Please address any questions regarding the description, samples, contents or the delivery of the Daily Corporate Action File (DCAF) to or call index operations on Tel.: +49 (69) 4056695-55.

Kind Regards,

MV Index Solutions