THE UNDERPRICING OF INITIAL PUBLIC OFFERINGS, EX ANTE UNCERTAINTY, AND PROXY SELECTION

Abstract

Abstract: This paper reconsiders the prediction that the underpricing of IPOs is increasing in ex ante uncertainty by objectively establishing proxies for ex ante uncertainty on definitional grounds rather than by appealing to intuitive arguments. Based on a sample of 420 U.S. IPOs from the period 1976–1985, the results suggest that there is a hierarchy of proxies. The results also support the prediction of a positive relation between underpricing and ex ante uncertainty. Finally, the results suggest that as the effectiveness of a selected proxy as a measure of ex ante uncertainty increases, so does the strength of the relation between the degree of underpricing and ex ante uncertainty as measured by that proxy.