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Wiley InterScience

Journal of Financial Research

Journal of Financial Research

Volume 26 Issue 1, Pages 113 - 127

Published Online: 31 Jan 2003

© 2009 The Southern Finance Association and the Southwestern Finance Association



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What Drives Stock Price Behavior Following Extreme One-Day Returns
Stephen J. Larson, Jeff Madura
 Eastern Illinois University
 Florida Atlantic University
Copyright 2003 The Southern Finance Association and the Southwestern Finance Association
KEYWORDS
G14

Abstract

Abstract
          I. Introduction
          II. Hypotheses Regarding Market Overreaction
          III. Hypotheses That Explain Variation in the Degree of Overreaction
          IV. Research DesignReferences

We identify samples of losers and winners by selecting daily stock price returns in excess of 10% (sign ignored) and determine whether these samples over- or underreact. We then identify "informed" events, which correspond to announcements in the Wall Street Journal(WSJ), and "uninformed" events, which are not explained in the WSJ. For winners, there is overreaction in response to uninformed events but no overreaction on average in response to informed events. This finding suggests the degree of overreaction to new information depends on whether the cause of the extreme stock price change is publicly released.


DIGITAL OBJECT IDENTIFIER (DOI)
10.1111/1475-6803.00048 About DOI

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