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International Review of Economics

, Volume 66, Issue 4, pp 423–452 | Cite as

Do investors post messages differently from mobile devices? The correlation between mobile Internet messages posting and stock returns

  • Lixing MeiEmail author
  • Yulei Rao
  • Mei Wang
  • Jianxin Wang
Research Article

Abstract

Mobile Internet has become a popular channel for investors to share their information and ideas about investment. This paper investigates the relation between frequency of mobile Internet messages and subsequent stock returns. We find that firms with higher proportion of mobile Internet messages on average earn a significant return premium even after controlling for well-known risk factors. Moreover, the marginal effect of mobile Internet messages is more pronounced among stocks in weaker information environments (i.e., higher fraction of individual ownership and lower analysts following). Further results suggest this correlation is more likely to be driven by “noise” rather than “information.” We also provide evidence that the lack of liquidity can explain the persistence of the correlation between mobile Internet messages and stock returns. Our findings highlight the importance for financial market participants to consider the peer-based opinions from mobile Internet.

Keywords

Mobile Internet Stock returns Information Noise Liquidity 

JEL Classification

G11 G12 G14 

Notes

Acknowledgements

We would like to thank Diefeng Peng, Daniel Houser, and Erte Xiao for helpful comments and suggestions. We also thank Ganggang Guo for outstanding assistance with the stock messages collection process from Snowball Finance platform. Besides, we thank China Scholarship Council (CSC), Project (71673306, 71301169, 71501193, 71372063) supported by the National Natural Science Foundation of China, Project of the Ministry of Education of China(14YJC630133) and Project (17CGL056) supported by the National Social Science Foundation of China.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.South China University of TechnologyGF SecuritiesGuangzhouChina
  2. 2.Business SchoolCentral South UniversityChangshaChina
  3. 3.WHU-Otto Beisheim School of ManagementVallendarGermany

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