China to Start Stock Circuit Breaker in January to Calm Swings
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China will start a stock-market circuit breaker at the beginning of next year to help calm volatility after the summer rout sent price swings in the benchmark index to 18-year highs.
A move of 5 percent in the CSI 300 Index would trigger a 15-minute halt for stocks, options and index futures, while a swing of 7 percent would stop trading for the remainder of the day, the Shanghai stock exchange said in a statement on its website.