KRX triggers KOSPI 200 sidecar following rapid index appreciation

The Korea Exchange (KRX) activated a sidecar mechanism to temporarily suspend program buy orders on the KOSPI 200 index following a sharp intraday surge. This regulatory intervention is designed to curb volatility and prevent market overheating, though the underlying catalyst for the sudden buying pressure remains unconfirmed. The move highlights heightened sensitivity in South Korean equity markets to rapid capital inflows.