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Journal of Banking & Finance Vol. 78 2017

Divergence of sentiment and stock market trading

Antonios Siganos1; Evangelos Vagenas-Nanos; Patrick Verwijmeren2,1,3

1 University of Glasgow · 2 The University of Melbourne · 3 Erasmus University Rotterdam

open access

Abstract

This paper introduces the concept of divergence of sentiment to the behavioral finance literature. We measure the distance between people with positive and negative sentiment on a daily basis for 20 countries by using data from status updates on Facebook. The prediction is that a higher divergence of sentiment leads to more diverging views on prospects and risks, and thus to more diverging views on the value of a stock. In line with this prediction, divergence of sentiment is positively related to trading volume. We further predict and find a positive relation between divergence of sentiment and stock price volatility. The observed relations are stronger when individual investors are more likely to trade. We compare the effect of our country-specific measures to a global measure of divergence of sentiment. We find that the separate effects of country-specific and global divergence measures depend on a country's level of market integration.

DOI
10.1016/j.jbankfin.2017.02.005
Volume
78
Pages
130-141
Language
en
Sources
openalex crossref bibtex:phds-export.bib

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