The mechanism, known as a buying sidecar, applies to programme orders when KOSPI 200 futures pass the specified upward threshold. It does not close the entire stock exchange.
In its 11:47 a.m. update, YTN reported that the index had briefly passed 6,000 before trading in the mid-5,900s. These are intraday levels, rather than a closing value.
YTN linked momentum in major semiconductor shares to SK hynix's results and renewed interest in AI. That explanation remains the broadcaster's analysis.