Information Discovery in Share Lockups: Evidence from the Split-share Structure Reform in China
Financial Management, Forthcoming.
41 Pages Posted: 16 Oct 2008 Last revised: 18 Feb 2016
Date Written: May 25, 2010
Abstract
We document a prominent abnormal stock return of -14% during the [-12''8 20] day window around 482 lockup expirations in the Split-share Structure Reform in China. The abnormal stock returns (selling volumes) are positively (negatively) correlated to firm information transparency and post-reform performance improvement, but negatively (positively) correlated to level of agency problems, suggesting the existence of information-based trading during the lockups. We present important evidence that institutional investors, especially mutual funds, possess superior information discovering capability than individual investors. Our findings confirm the information roles of lockups as a tool to signal firm quality and a commitment device to alleviate agency problems.
Keywords: Information Discovery, Lockup Expiration, Split-share Structure Reform, Institutional Investors, Abnormal Stock Returns
JEL Classification: G14, G30
Suggested Citation: Suggested Citation
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