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IPO Underpricing and Aftermarket Price Accuracy: Auctions vs. Bookbuilding in Japan

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  • Lehmann, Timo
  • Weber, Matthias

    (University of St. Gallen)

Abstract

We analyse a regulatory change in the Japanese IPO market that created an abrupt shift from hybrid price-discriminatory auctions to bookbuilding. We find that bookbuilding leads to significantly higher underpricing than hybrid price-discriminatory auctions. Further, we find evidence that price accuracy tends to be higher for auctions than for bookbuilding. The results hold under a variety of OLS specifications and with regression discontinuity designs exploiting the abrupt change of the regulation. The results suggest that the interests of issuers and underwriters are not aligned. The popularity of bookbuilding seems puzzling from this perspective.

Suggested Citation

  • Lehmann, Timo & Weber, Matthias, 2021. "IPO Underpricing and Aftermarket Price Accuracy: Auctions vs. Bookbuilding in Japan," SocArXiv sa385_v1, Center for Open Science.
    • Handle: RePEc:osf:socarx:sa385_v1
    DOI: 10.31219/osf.io/sa385_v1
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