India, Sept. 29 -- Korea Stock Market (KRX) Today (September 29): South Korean equities remained under pressure on September 29 as investors weighed elevated US Treasury yields, higher oil prices and renewed geopolitical uncertainty. The selling came a day after the KOSPI suffered its sharpest decline in two weeks, with semiconductor giants Samsung Electronics and SK Hynix among the stocks hit hardest.

The market's weakness reflected a broader global risk-off mood. US Treasury yields climbed sharply while crude oil prices remained elevated after diplomatic efforts between Washington and Tehran stalled. Those moves raised concerns about inflation and interest rates, adding pressure to export-heavy Asian markets.

Investors also turned cau...