Opening: Largest best Execution Principle used for Start of Trading
The opening of an exchange day takes the form of an auction, with the opening price
established in accordance with the "largest best execution" principle.
The following conditions must be fulfilled at opening:
The price must be determined in such a way that the greatest trading volume can be achieved.
All market orders must be executed.
Opening of individual trading segments
Opening is as per the
The Exchange System determines when each segment opens by selecting a random time within a
Opening of trading in different securities
If, during opening, there are no trades in the respective securities, there is no official opening price
for the day in question.
With certain securities, the following cases may arise: