Bullstory
May 29, 2026

KOSPI 8000 line breakdown, followed by an attempt to recover the 8400 line; foreign and institutional investors diverge

The KOSPI 5 month 29 morning, driven by hopes for a US-Iran ceasefire deal and improved sentiment toward US-led AI investment, rose 200.84 points (2.45%) to 8386.13. On the previous day, 5 month 28, heavy foreign selling sent it down 295.72 points (-3.59%), pushing it to 7932.98.


KOSPI 8000 line breakdown, followed by an attempt to recover the 8400 line; foreign and institutional investors diverge

29 morning, the KOSPI rose sharply on hopes for a ceasefire deal between the United States and Iran and improved sentiment toward investment in artificial intelligence (AI) originating in the United States. According to the Korea Exchange, as of 10:45 a.m., the KOSPI was 200.84 points (2.45%) higher than the previous trading day, at 8386.13. Tailwinds from semiconductor and AI server demand appear to be spreading to the information technology sector and major semiconductor stocks.

In the securities market, institutions alone made net purchases worth 1 trillion 7000 won, supporting the rise. Buying interest was seen concentrating in semiconductor-related stocks early in the session. The KOSDAQ, after rising early in the session, soon turned lower, moving in the opposite direction from the securities market.

On the previous day, 28, the opposite trend emerged. Concerns about a clash between the United States and Iran, together with news that the Bank of Korea had kept its benchmark interest rate unchanged, coincided with heavy foreign selling. According to the Korea Exchange, as of 28 p.m. on 1:58, the KOSPI was 295.72 points (-3.59%) lower than the previous trading day, trading at 7932.98.

On the securities market, foreign investors and institutions each 3 trillion8022 hundred million won, 3658 hundred million won in net sales. Individuals, on the same day, 4 trillion753 hundred million won in net purchases, creating an offsetting supply-demand pattern. Large-cap semiconductor stocks, which had strengthened the previous day, 28 fell sharply.

Samsung Electronics 28 traded 5.21% lower at 29 ten thousand1000 won. SK hynix, on the same day, fell 2.32% to 219 ten thousand1000 won. Price movements in the two stocks had a major impact on index movements.

The two-day trend shows that external geopolitical risks, changes in sentiment toward AI investment, and foreign investor flows determined the direction of the index. Intraday flows and sector trends are changing rapidly. Investors need to monitor intraday changes in supply and demand and respond accordingly.

Sources: 파이낸셜뉴스 증권

Bullstory synthesized this report from the linked sources. AI may have assisted the writing process. Check the original reports for factual confirmation.