Woofun AI reports that South Korea’s benchmark KOSPI index activated a circuit breaker on [Date] following an intraday decline exceeding 8%. This mechanism, governed by Korea Exchange rules, suspended trading for 20 minutes to mitigate panic-driven selloffs. The event marks the first circuit breaker activation since the March 2020 market crash, highlighting extreme volatility. Technology, semiconductor, and export-heavy sectors faced significant selling pressure. Trading resumed but the index closed near session lows, reflecting persistent negative sentiment.