On Wednesday, March 4, 2023, the Seoul Stock Exchange faced unprecedented turmoil, registering a staggering 12% decline, marking the worst single-day performance in its history. This follows a 7.2% loss the day before, highlighting the deepening concerns among investors. The downward trend was largely attributed to rising anxieties surrounding escalating tensions in the Middle East, particularly the ongoing conflict involving the U.S. and Israel against Iran, which has retaliated with military responses.

Historically, the Kospi index had shown remarkable resilience, boasting a nearly 50% increase in the first two months of the year. However, in just a couple of days in March, the index recorded a drastic 20% drop. The lack of market activity on Monday due to a national holiday further compounded the volatility. Only 10 out of more than 800 listed companies managed to record gains during this turbulent period, reflecting the widespread panic among investors and triggering a massive sell-off in the market.

The slide was significantly influenced by sharp declines in the stocks of leading memory chip manufacturers Samsung and SK Hynix, which are crucial to the South Korean economy and collectively represent a substantial portion of the Kospi index—approximately 40%. With both companies witnessing a roughly 20% drop in their stock prices since the onset of the conflict, their struggles underscore the market's fragility and expose the deep interconnections between geopolitical instability and economic performance in South Korea.