6.3 Procedure

¹ Market Control may declare a trade null and void on its own accord or on a participant's application.

² Market Control shall, as a rule, decide on the invalidity of a trade within 30 minutes of its execution, with the exception of

1. bonds: up to 30 minutes after close of trading;
2. derivative financial instruments: up to 30 minutes after close of trading, if at least one of the participants involved has designated the order as a customer trade.

³ In exceptional cases, Market Control may extend these periods after prior announcement via the Newsboard.