The South Korean KOSPI index fell approximately 5% to roughly 6,200 points on Monday as foreign and institutional investors exited positions [1].
This sudden reversal follows a period of extreme volatility that threatens to erase gains made during a massive rally last week. The scale of the sell-off highlights the sensitivity of the Seoul market to profit-taking by global institutional players.
Market data shows the KOSPI opened down 3.6% at 6,358 points and continued to slide, eventually closing down 5.1% at 6,257 [2]. This decline was driven by foreign and institutional investors who net-sold approximately 4.8 trillion won [1, 2]. Individual investors moved in the opposite direction, acting as net buyers during the slump [1].
Major technology constituents bore the brunt of the volatility. Samsung Electronics shares fell nine percent into the 230,000-won range [2]. Similarly, SK Hynix shares dropped nine percent to the 1,560,000-won range [2].
The plunge comes immediately after a Friday that saw an 18% surge, which had pushed the index toward the 6,600 level [3]. Analysts said the Monday crash was due to profit-taking by institutional investors following that rapid ascent [2].
In contrast to the main index, the KOSDAQ showed resilience on Monday. The KOSDAQ rose 2.4% to finish at 737 points [2].
"The KOSPI, which surged 18% last Friday and reached the 6,600 level, plummeted 5% yesterday (the 3rd) and slumped to the 6,200 level," said a YTN News anchor [3].
“Foreign and institutional investors net-sold about 4.8 trillion won.”
The sharp contrast between the KOSPI's collapse and the KOSDAQ's modest gain suggests a divergence in investor sentiment between large-cap tech giants and smaller growth stocks. The massive 4.8 trillion won exit by institutional players indicates that the previous week's 18% rally was viewed as an overextension rather than a sustainable trend, leading to a rapid correction to the 6,200 level.


