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17 Sep 2025

C7 12.0 simulation focus days on 23.09.2025 and 30.09.2025

The focus days “CA Harmonization: conversion of affected OSTKs (1)” and  “CA Harmonization: Capital Increase in BAS “ will be performed in C7 simulation on Tuesday 23.09.2025 and Tuesday 30.09.2025 to test the corporate action harmonization scenario.

On the first focus day (23.09.2025 “CA Harmonization: conversion of affected OSTKs (1)”) Eurex Clearing will adjust several Options on Stocks (OSTK) with a fractional trading unit by the equalization payment method. This results in a one-off cash settlement of the fractional trading unit for already capital adjusted option series. Please note: R-factor will be 1 and version numbers remain unchanged.

On the second focus day (30.09.2025 “CA Harmonization: Capital Increase in BAS”) Eurex Clearing will adjust “BAS” applying the harmonized corporate action handling. The resulting trading unit will no longer have fractions and will be rounded to the increment of one share. A premium adjustment (equalization payment) will take place on Ex Date +1 to neutralize the rounding. Version numbers will be increased as usual.

Please make sure to create the relevant positions in simulation in advance of the Corporate Action if you are interested in taking these tests. 

For details, please refer to the Eurex Clearing Readiness Newsflash: “C7 Release 12.0: Simulation start and documentation update” published on 19.08.2025

Eurex Clearing Readiness Newsflash | C7 Release 12.0: Simulation start and documentation update