Mainland stock markets will implement circuit breaker protocols on January 1 in a bid to avert another equities rout, South China Morning Post reported, citing announcements from the Shanghai Stock Exchange, Shenzhen Stock Exchange and China Financial Futures Exchange. A move of 5% by the CSI 300 Index will trigger a 15-minute halt for stocks, options and index futures, while a 7% move will end trading for the day. “Clearly the Chinese authorities are nervous about big volatilities, and what they did during this summer after the rout was clearly uncommon,” said Macquarie strategist Erwan Sanft. “Let’s just say, as long as they let the market decide rather than directly intervening, it is easier.”