Public Information and IPO Initial Returns: Theory and Tests
42 Pages Posted: 18 Mar 2011 Last revised: 10 May 2015
There are 2 versions of this paper
Public Information and IPO Underpricing
Date Written: May 10, 2015
Abstract
The literature shows that the first-day return in an IPO is positively related to the market return leading up to the issue. We propose a new model for this puzzling predictability by adding a public signal to the Benveniste and Spindt (1989) information-based framework. The public signal affects the equilibrium offer price through investors' incentives to truthfully reveal their private information to the underwriter and the probability that the IPO is in high demand. Analyzing 6,300 U.S. IPOs in 1983-2012, the model predictions receive strong support in the subsample of top-tier underwriters, where the order book has been shown to be informative. Moreover, controlling for the incentive effect of the model, the positive relation between the initial return and the market return disappears, effectively resolving the predictability puzzle.
Keywords: IPO, underpricing, bookbuilding, public information, private information, partial adjustment
JEL Classification: G10, G32
Suggested Citation: Suggested Citation
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