Korean Retail Investors Sold ₩8 Trillion on the Biggest Up Day in KOSPI History

Diverging bar chart of KRX main-session flows on July 31, 2026: foreign investors net bought KRW 7.22 trillion while Korean retail investors net sold KRW 8.25 trillion.

On July 31, 2026 the KOSPI rose 17.91% — its largest one-day gain ever. In the same KRX session Korean retail investors net sold ₩8.25 trillion while foreigners net bought ₩7.22 trillion. What Korean investors were writing while they sold, why SK Hynix stopped at 29.95%, and why naming the cause of this rally is a trap.

Korea Is Putting $14 Billion Into AI. Its Sovereign Wealth Fund Has Never Been Allowed to Do This.

Bar chart of KOSPI daily percentage moves July 27 to 31, 2026: +0.97%, -10.84%, -5.98%, -1.23%, then +17.91%, annotated with the week’s supply and capital events.

Korea will put ₩20 trillion (about $14 billion) into AI through a new Strategic Investment Account inside KIC — the first time its sovereign wealth fund has been allowed to invest at home. What actually changed, why the money is meant to attract rather than buy, and the five checkpoints that decide whether it works.