Underpricing of initial public offerings (IPOs) and the credibility of underwriters’ pricing services

Oghenovo A. Obrimah ()
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Oghenovo A. Obrimah: FISK University

SN Business & Economics, 2023, vol. 3, issue 2, 1-33

Abstract: Abstract This study provides formal theoretical evidence that the credibility of underwriters’ pricing services is evident in the magnitude of intertemporal dampening that is imposed on IPO underpricing by underwriters in response to increases to the severity of valuation uncertainty risk. Using aggregate IPO volume as the measure for the reputation of underwriters, and a formally and theoretically motivated measure for the severity of valuation uncertainty risk—in this specific study, the proxy for the measure is derived from the Fama–French HML (high minus low book-to-market) factor—empirical results show reputable underwriters dampen underpricing by much more than less reputable underwriters, as such provide exogenous evidence for the robustness of casting of IPO volume as a proxy for the credibility of underwriting. Evidence that high IPO quality can be associated with either of low or high underpricing facilitates the inference that the credibility of underwriting cannot be robustly inferred from time specific realizations for IPO underpricing. Necessarily, as such studies of the credibility of underwriters’ pricing services are specified to be intertemporal, not cross-sectional. Robustness of study inferences is evident in the conformity of empirical findings with the stylized fact that high quality issuers exhibit preference for reputable underwriters.

Keywords: Reputation; Underwriters; Adverse selection; Valuation uncertainty; Book-to-market; HML (search for similar items in EconPapers)
JEL-codes: G12 G24 (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s43546-022-00415-y

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