China's security watchdog on Friday began a campaign against manipulation of the stock market, involving 12 cases of abnormal trade.
The cases involve stock price manipulation through exaggerated or false information, collaboration in controlling stock prices and inside trading, according to the China Securities Regulatory Commission (CSRC).
This will be the third campaign against crime in the stock market this year.
Market manipulation destroys the price formation mechanism, hurts investors and even brings risk to the capital market system, said CSRC spokesman Deng Ge.