Can Liquidity Shifts Explain the Lockup Expiration Effect in Stock Returns?
38 Pages Posted: 12 Feb 2009 Last revised: 14 Nov 2013
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Can Liquidity Shifts Explain the Lockup Expiration Effect in Stock Returns?
Can Liquidity Shifts Explain the Lockup Expiration Effect in Stock Returns?
Date Written: February 11, 2009
Abstract
Several studies on the expiration of IPO lockups document a strong negative reaction even though the unlock event is devoid of any informational content. The empirical finding has remained a conundrum. In this paper, we find that changes in liquidity can account for the observed stock price reaction around lockup expiration. Specifically, firms which show improvement in liquidity subsequent to the unlock day experience positive abnormal returns in the post-expiration period, and vice versa. Another interesting conclusion that emerges from our research is that liquidity changes can predict future abnormal returns. Our results remain robust to the use of alternate procedures to characterize unexpected changes in liquidity.
Keywords: Lockup expiration, Illiquidity
JEL Classification: G14, G24, G32
Suggested Citation: Suggested Citation
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