韩国股市不断创新高后重挫！韩国交易所在KOSDAQ 150期货下跌6%后，对KOSDAQ启用了熔断机制，程序化交易暂停5分钟

Group 1 - The South Korean Composite Stock Price Index (KOSPI) has dropped by 5.76%, breaking through key support levels of 4100, 4000, and 3900 points [1] - Following a 6% decline in KOSDAQ 150 futures, the Korea Exchange activated a circuit breaker mechanism, pausing program trading for 5 minutes [3]