Insider Trading, Volatility of Stock Price and Information Asymmetry

With the samples of stocks which has experienced insider trading in Chinese security market, this article analysis the current characteristics of the insider trading in Chinese security market. It makes empirical description of the insider trading in the follows: the effect of insider trading on the stock price, the abnormal return or disgorgement of insider traders, the impact of insider trading on the information asymmetry in trading. At the last, we develop the policy suggestions against the insider trading