Market Surveillance ensures proper conduct of trading
A functioning market surveillance is indispensable for the proper conduct of exchange trading including the correct determination of prices in accordance with the rules. In Germany, several authorities work closely together here.

Their aim is to ensure national and international standards are upheld.
The primary data collection is carried out systematically and comprehensively on the basis of trading and order data from the trading systems of the stock exchange. In addition, information from various sources flows into the analysis. These can be, among others, ad- hoc disclosures, news and announcements.
As a result of this broad information base, potential violations of stock exchange regulations and orders as well as malpractices are investigated and uncovered. Investigation results are communicated to the management of the respective stock exchange, the supervisory authorities or, if necessary, to the law enforcement authorities.
Suspected cases of market manipulation or insider trading are reported to the German Federal Financial Supervisory Authority (BaFin).
The TSO works closely with the Management Board and other bodies of the exchange and is involved in the development of new products, market models and rules and regulations.
In addition, the TSO cooperates with supervisory authorities and other bodies responsible for the supervision of stock exchanges domestically and abroad.
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
We strongly recommend not to take any decisions based on the indications in the market status window but to always check the production news board for comprehensive information on an incident.
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