The “sidecar” mechanism suspends the effect of program sell orders for five minutes when KOSPI 200 futures fall at least 5% for one minute. It applies to those orders rather than halting all trading.
In its late-morning bulletin, SBS described a KOSPI decline of nearly 5%, with semiconductor shares falling sharply. The broadcaster linked investor concerns to possible tighter US rules on AI data centres; that is an interpretation of market movements.
These figures describe an ongoing session. They are not the closing level for 5 November.