According to Korea Exchange, South Korea's stock market triggered its sidecar mechanism (automated program trading halt) 21 times in July alone, with 12 activations on the KOSPI market and 9 on KOSDAQ over 18 trading days. The annual total has reached 66 activations year-to-date, surpassing the 2008 financial crisis record of 45 in just seven months.
Experts attribute the surge to the mechanism's outdated design, unchanged since 2002, which fails to address high-frequency trading and leverage ETFs prevalent in today's markets. Professors note that the fixed 5% volatility threshold no longer effectively contains market swings and suggest adjusting trigger levels to match current trading conditions.