Chinese investors watch a stock price board at a private securities firm in Shanghai, 27 July 2007. Insider trading and other illegal share activities are becoming rampant amid China's stock market frenzy, prompting a crackdown by authorities. Getty Images logo Getty Images 30 months ago

Chinese investors watch a stock price board at a private securities firm in Shanghai, 27 July 2007. Insider trading and other illegal share activities are becoming rampant amid China's stock market frenzy, prompting a crackdown by authorities.