China regulators suspend circuit breaker mechanism, citing need for ‘stability of markets’
Mainland regulators say mechanism has failed to achieve its aim of stability after trading day lasts just 13 minutes before business grinds to a halt

Mainland regulators said late Thursday that the circuit breaker policy will be suspended with immediate effect, acknowledging that it had failed in its intended goal of calming stock markets during periods of heightened selling pressure.
China Securities Regulatory Commission spokesman Deng Ke said in a statement that the policy would be unwound ahead of the open of trading Friday and set aside for further study.
“The negative impact now has exceeded the positive side,” Deng said. “In order to protect the stability of the stock market, the CSRC has decided to suspend the mechanism.”
He said the CSRC would study the circuit breaker in light of market activity and seek to learn from the experience.

Prior to the CSRC’s announcement, market watchers had criticised the intended calming mechanism as failing in its mission owing to design defects.