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- W4229654326 abstract "Stocks prices respond to news. In recent years, social media had played a more and more important role in affecting stock prices. As unstructured data often includes text and multimedia content, news cannot be understood directly by computer. This chapter presents an overview on finding alphas by using news and social media. If the information in the news is not fully reflected by the market instantly, the stock price may have drift or momentum afterward. The effect is much stronger on smaller stocks, since they are less observed, and on unexpected news. Some of the popular research topics cover: aggregation and dispersion of sentiment; beta calculations using news; and leading news stocks. Related papers can be found by searching news and stock return on the Social Science Research Network (SSRN). The chapter concludes with a discussion on the challenges in applying sentiment analysis of social media contents." @default.
- W4229654326 created "2022-05-11" @default.
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- W4229654326 date "2015-09-04" @default.
- W4229654326 modified "2023-09-23" @default.
- W4229654326 title "Impact of News and Social Media on Stock Returns" @default.
- W4229654326 doi "https://doi.org/10.1002/9781119057871.ch19" @default.
- W4229654326 hasPublicationYear "2015" @default.
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