基于舆情分析的投资者情绪指标对科技业股票收益率的影响

Impact of Investor Sentiment Index Based on Public Opinion Analysis on the Stock Return Rate of Technology Industry

随着金融市场化高度发展,网络社交平台逐渐成为了投资者们发表个人观点的重要媒介。货币政策的颁布会影响投资者情绪,这些情绪会直观反映在网络平台上。基于此,先使用Python爬虫技术和舆情分析方法获取投资者情绪数据,再从A股科技业选取59支样本股,以2018年1月至2020年9月的周度数据研究投资者情绪、货币政策与科技业股票收益率之间的相互关系。通过实证分析和稳健性检验后得出结论:投资者情绪在货币政策和科技业股票收益率之间起调节作用。最后提出相关建议。

In the modern era of highly developed financial marketization,online social platforms have gradually become an important medium for investors to express their personal opinions.The promulgation of monetary policy will affect investor sentiment,and these sentiments are most intuitively reflected on online platforms.First use Python crawler technology and public opinion analysis methods to obtain investor sentiment data,and then select 59 sample stocks from the A-share technology industry,and uses weekly data from January 2018 to 2020 to study the correlation between investor sentiment,monetary policy and stock returns in the technology industry.Through empirical analysis and robustness test,it is concluded that investor sentiment plays a moderating role between monetary policy and stock returns in the technology industry.Finally,relevant suggestions are made.