On the 10th, as the war between the United States and Iran intensified the situation in the Middle East, the dealing room display board at Hana Bank headquarters in Jung-gu, Seoul shows the won-dollar exchange rate and the KOSPI and KOSDAQ indexes. On this day, as the KOSPI rebounded by more than 5%, a buy-sidecar (temporary suspension of the effectiveness of program-trading buy orders) was triggered on the KOSPI market. Reporter Moon Jae-won

As the KOSPI rebounded by more than 5% on the 10th, a buy-sidecar (temporary suspension of the effectiveness of program-trading buy orders) was triggered on the KOSPI market.

The Korea Exchange announced that at 9:06 a.m. that day, a buy-sidecar was triggered on the KOSPI market. At the time of activation, KOSPI 200 futures were up 6.14% from the previous session.

A buy-sidecar is a measure that halts program buying for five minutes to mitigate volatility. It is triggered when KOSPI 200 futures have risen 5% or more from the previous session and that level is sustained for one minute. As U.S. President Donald Trump on the 9th (local time) hinted at an early end to the U.S.-Iran war, market expectations for an end to the war grew, causing oil prices to plunge and dollar strength to ease. As a result, stock prices, the exchange rate, and bond prices are retracing.

That day, the KOSPI opened at 5,523.21, up 271.34 points (5.17%) from the previous session. Semiconductor shares such as Samsung Electronics (6.86%) and SK hynix (7.89%), which had plunged the previous day, are rebounding sharply and leading the index.