Abstract
We collect a unique dataset of Twitter posts to examine the change in investor disagreement around earnings announcements. We find that investors' opinions can either converge (reduced disagreement) or diverge (increased disagreement) around earnings announcements. The convergence and divergence of opinion has significant effects on trading volume and return. Consistent with theoretical predictions, both the convergence and divergence of opinion are associated with a greater volume reaction to earnings news. While the convergence of opinion is associated with lower earnings announcement returns, the divergence of opinion is associated with higher earnings announcement returns.
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