The influence of social media on stock volatility

Xianjiao WU, Xiaolin WANG, Shudong MA, Qiang YE

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Front. Eng ›› 2017, Vol. 4 ›› Issue (2) : 201-211. DOI: 10.15302/J-FEM-2017018
RESEARCH ARTICLE
RESEARCH ARTICLE

The influence of social media on stock volatility

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Abstract

This study explores the influence of social media on stock volatility and builds a feature model with an intelligence algorithm using social media data from Xueqiu.com in China, Sina Finance and Economics, Sina Microblog, and Oriental Fortune. We find that the effect of social factors, such as increased attention to a stock’s volatility, is more significant than public sentiment. A prediction model is introduced based on social factors and public sentiment to predict stock volatility. Our findings indicate that the influence of social media data on the next day’s volatility is more significant but declines over time.

Keywords

stock volatility / social data / sentiment analysis / boosting algorithm

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Xianjiao WU, Xiaolin WANG, Shudong MA, Qiang YE. The influence of social media on stock volatility. Front. Eng, 2017, 4(2): 201‒211 https://doi.org/10.15302/J-FEM-2017018

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Acknowledgements

The author appreciates the comprehensive assistance of Mr. Shudong MA with data gathering and compilation that led to the drafting of this article. This research is supported by National Natural Science Foundation of China (Grant No. 71532004).

RIGHTS & PERMISSIONS

2017 The Author(s) 2017. Published by Higher Education Press. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0)
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