In very volatile market phases or in the case of announcements that strongly influence the price of one or more securities, the Exchange Supervisory Authority may suspend trading in individual securities. In extreme situations, the entire exchange trading may also be suspended. During this time, trading in the securities concerned is not possible.

In addition, securities may also be suspended from trading for an extended period of time for other reasons. For example, since summer 2019, Swiss shares may no longer be traded on trading venues in the EU. The suspension and resumption of price determination in individual securities will be announced on the website of the stock exchange gettex.