Chinese regulators have unveiled a measure that would temporarily suspend stock trading in response to wild price swings in the latest attempt to enforce stability in volatile markets.

The mechanism announced Friday would suspend trading for 15 minutes if the market's broadest index rises or falls by 5 percent. It takes effect Jan. 1.

A slide in Chinese share prices that began in early June prompted a multibillion-dollar government intervention. Authorities are unwinding a freeze on new stock offerings and other controls imposed to stop the market plunge.