EL7.AI
StocksMediumUpdated•Originally published 22 October 2026•Updated 22 October 2026•
1 min read

South Korea's KOSPI Index Plunges 3.77% Amid Heavy Institutional Selling

Key Facts

1The KOSPI Composite Index plunged 3.77% to close at 5,519.28 amid a broad-based sell-off.
2LG Display reported a return to profit in the third quarter, providing a rare bright spot in the market.

The KOSPI Composite Index plunged 3.77% to close at 5,519.28 on October 22, 2026. Business Upturn reported that the decline was driven by intense institutional selling pressure across most sectors, causing the index to fall sharply from an intraday high of 5,740.28.

LG Display reported a return to profit in the third quarter, providing a rare positive signal amid the broader market sell-off. The instrument LPL closed at $2.64 on October 21, 2026, having traded between a low of $2.62 and a high of $2.71 during that session.

Looking ahead, South Korea is scheduled to release key economic data on October 26, 2026, including Consumer Confidence and the GDP Growth Rate, followed by Business Confidence data on October 28, 2026.

Latest Updates · 1

  1. Notable·

    Update: The index was directly impacted by a sharp sell-off in the semiconductor sector, as SK hynix shares fell 5.49% and Samsung Electronics dropped 4.03%. These declines in heavyweight stocks deepened the South Korean market's losses during the October 22, 2026, session.