An Empirical Analysis Of The Investors Sentiment's On The Share Price

With the development of the Internet, as the essential elements of the development of Internet application, social networking no longer limit to the transmission of information, but the integration of communication, business transaction applications.With the users of other applications, we should form a chain of more powerful in order to achieve a wide and rapid dissemination of information. Since the Internet goes into the Web3.0 era, represented by the various Internet products, a variety of emerging Internet social media such as micro-blog, blogs, forums, friends etc. has penetrated into people's life, which has an impact on the way people get information and their lives.In recent years, as the rapid development of China's stock market, the stock is more attractive for investors. However, the stock market has a lot of uncertainty and risk.Meanwhile, mood changes and the psychological expectations of investors has a close relationship between the stock market. Through the analysis of the emotion expressed by investors in the network and the information about the stock, we can find out whether investor sentiment have correlation with the stock price in the future or the current. We can forecast of future trend of stock market with the help of the correlation, thus to provide some reference assistant in the respect of investors' rational investment,optimize investment decisions and the healthy development of the stock market, we can also try to optimize the portfolio at the same time.In my article, we will evaluate the emotion of the text posts through the sentiment analysis tool, we also build some index such as the sentiment, attention and divergence of investors, and then we explore the correlation between them combined with the Shanghai Composite Index closing price, amplitude, volume and other market performance data. On this basis, we establish the prediction model of stock price, the main research results are as follows:Through the text mining and sentiment analysis of the Oriental Wealth shares, the investor sentiment index is constructed, which can directly show the attitude and attention of the general investors to the stock price.The empirical analysis shows that there is a positive correlation between investor sentiment and stock price,and investor sentiment has a certain ability to predict the future trend of the stock price in a short period.