Samsung, SK hynix slide 10% as AI data center fears spread

The Korea Herald · Choi Ji-won · 2026-11-06 00:28 UTC

Blue-chip semiconductor stocks plunged around 10 percent during intraday trading Friday, dragging the benchmark Kospi below the 5,000-point mark as investor sen

Blue-chip semiconductor stocks plunged around 10 percent during intraday trading Friday, dragging the benchmark Kospi below the 5,000-point mark as investor sentiment was rattled by a sharp overnight sell-off in major technology stocks on Wall Street following the US midterm elections.

The benchmark Kospi opened at 5,263.63, down 2.2 percent from its previous close. Losses deepened, triggering a 20-minute trading halt just three minutes into the regular session. The first-stage circuit breaker kicks in when the index stays at least 8 percent below its previous close for one minute.

Prior to the circuit breaker activation, Samsung Electronics was trading at 181,400 won ($133.71), down 20,100 won, or 9.98 percent, from the previous session as of 9:14 a.m. SK hynix shares were also down 148,000 won, or 11.71 percent, at 1.116 million won at the same time.

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