Regulator roots out the market cheats

Analysts have welcomed the clampdown, pointing out that the A-share index has been plagued by insider trading, financial fraud and manipulation

China's securities watchdog last month launched an unprecedented crackdown on insider trading, market manipulation and illegal margin financing.

This was triggered after the Shanghai Composite Index dropped by more than 30 percent from a seven-year high of 5,178.19 points in early June. More than $4.5 trillion has been wiped off the value of shares since then.