Seoul stocks fall 3.73% as chipmakers lead AI-driven selloff

Briefing by News4U · First published 2026-10-20 08:30:32 UTC

KOSPI dropped 215.27 points to 5,552.74 amid AI investment concerns and French unrest; Samsung Electronics and SK hynix fell sharply.

Seoul stocks plunged nearly 4% Tuesday, with the KOSPI falling 215.27 points, or 3.73%, to 5,552.74 after hitting an intraday low of 5,493.24, Yonhap Business reported. Chipmakers led the selloff as investors cashed in recent gains amid ongoing concerns over AI investments and escalating protests in France. [1] [2] [3]

Samsung Electronics closed down 2.98% at 211,500 won, while SK hynix fell 4.23% to 1.22 million won, its lowest close since April. Foreign and institutional investors sold a net 535.4 billion won and 1 trillion won respectively, while individuals bought 900 billion won. [2] [3]

Sources

1. Seoul stocks extend losses late Tues. morning amid AI concerns

   Yonhap Business · 2026-10-20 02:35:57 UTC · Full text

2. Seoul stocks slide nearly 4 pct on AI jitters, unrest in France

   Yonhap Business · 2026-10-20 06:34:46 UTC · Full text

3. (LEAD) Seoul stocks slide nearly 4 pct on AI jitters, unrest in France

   Yonhap Business · 2026-10-20 06:54:17 UTC · Full text

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