Korean exchanges trigger KOSPI circuit breaker as stock index plummets

Odaily News The decline in South Korea's KOSPI index widened to 5%, with Samsung falling 6.5% and SK Hynix dropping over 8%. Nasdaq futures were down nearly 1%, and major chip stocks generally fell in after-hours trading.

Due to a 5% drop in KOSPI 200 futures, the Korea Exchange triggered the KOSPI circuit breaker, suspending program trading for 5 minutes.