1. Introduction
STOXX Ltd. has announced the new composition of the DAX® Blue Chip Indices. Consequently, the changes communicated in this circular will come into effect in Deutsche Börse Xetra trading (MIC: XETR) on 21 September 2026.
Production start: 21 September 2026
2. Required action
Please note: As a result of the changes listed under no. 3., the multicast addresses and/or partitionIDs for the affected instruments might also change. In that case, please kindly take the new multicast addresses/partitionIDs into consideration.
Open orders in the instruments affected by the changes listed under no. 3. will not be deleted.
3. Details of the initiative
For the following instruments, the Product Assignment Group in Deutsche Börse Xetra (MIC: XETR) will change with effect from 21 September 2026:
Instrument name | Short code | ISIN | Product Assignment Group old | Product Assignment Group new |
Ströer SE & Co. KGaA | SAX | DE0007493991 | SDX1 | MDX1 |
HUGO BOSS AG | BOSS | DE000A1PHFF7 | MDX1 | SDX1 |
Further information
Recipients: | All Trading Participants of Frankfurt Stock Exchange (Frankfurter Wertpapierbörse, FWB®) and Vendors |
Target groups: | Traders, Security Administrators, System Administrators |
Contact: | Cash Markets Operations Helpline, tel. +49-69-211-1 14 00 |
Web: | |
Authorized by: | On behalf of the Management Board: Christopher Turba, Van Tri Tran |
Market Status XETR ⓘ
XETR
The market status window is an indication regarding the current technical availability of the trading system. It indicates whether news board messages regarding current technical issues of the trading system have been published or will be published shortly.
Please find further information about incident handling in the Emergency Playbook published on the webpage under Data & Tech > Information Channels > Emergency procedures. Detailed information about incident communication, market re-opening procedures and best practices for order and trade reconciliation can be found in the chapters 4.2, 4.3 and 4.5, respectively. Concrete information for the respective incident will be published during the incident via newsboard message
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