Investor Information Consumption and Stock Price Comovement

Travis Box

University of Mississippi - Department of Finance

February 1, 2017

I introduce a method for gauging qualitative similarity in the information environments between firms based on linguistic commonality in their newswire text. I find that this new measure of qualitative similarity predicts future cross-firm return correlation even after accounting for the pair’s contemporaneous price comovement. I also provide support for an existing theory of information-driven comovement by demonstrating that the relation between contemporaneous qualitative similarity and future return correlation changes in response to market conditions and firm characteristics. I find that aggregate comovement increases when investors focus their information consumption on firms whose payoffs covary strongly with many other companies.

Number of Pages in PDF File: 56

Keywords: Comovement, Dynamic Panel Estimation, Textual Analysis, Correlation

JEL Classification: C33, C53, D83, G00, G11, G12, G14

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Date posted: September 4, 2012 ; Last revised: February 2, 2017

Suggested Citation

Box, Travis, Investor Information Consumption and Stock Price Comovement (February 1, 2017). Available at SSRN: https://ssrn.com/abstract=2139708 or http://dx.doi.org/10.2139/ssrn.2139708

Contact Information

Travis Box (Contact Author)
University of Mississippi - Department of Finance ( email )
Oxford, MS 38677
United States
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