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A Twitter View of the Brazilian Stock Exchange Market

  • Hugo S. Santos
  • Alberto H. F. LaenderEmail author
  • Adriano C. M. Pereira
Conference paper
Part of the Lecture Notes in Business Information Processing book series (LNBIP, volume 239)

Abstract

In this paper, we present a view of the Brazilian stock exchange market based on a large characterization and analysis of Twitter data. In our analysis, we show that events and news about the stock market are capable of generating peaks of publications by Twitter users and that the frequency of posts follows the starting of the exchange trading day and maintains for about three hours after the stock market closing hour. Moreover, based on a survey conducted with a specific niche of Twitter users, we have been able to estimate that 0.5 % of those users have some knowledge of the Brazilian stock market and are mostly individual investors interested in publishing and consuming news about this market, having 45 % of them used Twitter as a source for investment decisions. Finally, we have observed that the total number of orders and the financial volume are positively correlated for 66 % of the stocks mentioned on Twitter, whereas the oscillation and maximum oscillation dimensions present no correlation.

Keywords

Stock Market Sentiment Analysis Specific Niche Individual Investor Twitter User 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This research was supported by the Brazilian National Institute of Science and Technology for the Web (InWeb - CNPq grant number 573871/2008-6) and by individual grants from CNPq and Fapemig.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Hugo S. Santos
    • 1
  • Alberto H. F. Laender
    • 1
    Email author
  • Adriano C. M. Pereira
    • 1
  1. 1.Department of Computer ScienceUniversidade Federal de Minas GeraisBelo HorizonteBrazil

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