October 21 KOSPI Outlook: Rebound, Sideways Trading, and Further Decline Scenarios After the 5552.74 Close
The key question for the KOSPI on 2026-10-21 is whether selling pressure is easing after the previous day's sharp 3.73% decline. On 20, the KOSPI closed at 5552.74, down 215.27 points. Today, investors should look beyond a simple index rebound and examine foreign and institutional investor flows, the Korean won–U.S. dollar exchange rate, movements in major semiconductor stocks, and whether gains are spreading across the broader market.