South Korea halts stock trading after KOSPI falls over 8%

November 6, 2026, Seoul time. South Korea halted trading in KOSPI-listed stocks for 20 minutes after the benchmark index fell more than 8% from its previous close. The suspension began at 9:03 a.m. local time amid heavy selling in technology shares.

Why it matters

The temporary halt is a mechanism designed to manage rapid declines and support orderly trading. It followed a sharp fall in US technology shares. The figure describes the Korean market at the open, not its closing level.

Rockstar Briefing analysis

The drop illustrates how changing expectations for AI infrastructure and semiconductors can spread across markets. A trading halt does not determine subsequent price movements; investors should watch the resumption, chipmakers and the market close.

Sources: Reuters, Yonhap and the Korea Exchange trading guide. Featured image: AI-generated illustration.