AI regulation concerns hit Japanese and South Korean markets. Japan's Nikkei 225 closed down 1,110.73 points, down 1.79 pct, at 61,077.90. South Korea's KOSPI closed down 300.15 points, down 5.28 pct, at 5,383.65; KOSDAQ fell 5.11 pct, triggering intraday sidecar mechanisms and pausing program trading. SK Hynix fell 9.45 pct and Samsung Electronics fell 7.56 pct.

2026-11-05

AI regulation concerns hit Japanese and South Korean markets. Japan's Nikkei 225 closed down 1,110.73 points, down 1.79 pct, at 61,077.90. South Korea's KOSPI closed down 300.15 points, down 5.28 pct, at 5,383.65; KOSDAQ fell 5.11 pct, triggering intraday sidecar mechanisms and pausing program trading. SK Hynix fell 9.45 pct and Samsung Electronics fell 7.56 pct.