Matching in SwissAtMid can be interrupted in the following cases:
If no mid-point price can be calculated in the CLOB of the respective security.
If the respective security is not in the trading period "Continuous Trading" in CLOB then the
MPOB is in Primary Condition (e.g. trading period of CLOB is Pre-Opening, Opening, End of
Trading or Post-Trading).
If trading in the respective security is interrupted in CLOB then the MPOB is in Primary Condition
(e.g. trading state of CLOB is Suspended, Underlying Condition, Stop Trading, Delay Opening or Non-Opening).
If the mid-point of the best bid and offer of next execution in SwissAtMid compared to the last Reference Price
of the CLOB of the respective security is outside a defined price range then MPOB has a Stop Trading.
The Stop Trading Range in SwissAtMid complies with the rules for the CLOB of the respective security. The Stop
Trading Duration in MPOB is not timed. The stop trading in MPOB will last for as long as the price deviation
exceeds the Stop Trading Range of the respective security. Find details about the applicable Stop Trading
parameters in the Product Guide - Equity Market[pdf].
If trading in the respective security is suspended in MPOB.