69 Pages Posted: 20 Feb 2003
Date Written: January 15, 2003
We examine the underpricing and long-term performance of a broad set of Swiss IPOs from 1983 to 2000. The average market adjusted initial return is 34.97%. Our results support the ex ante uncertainty hypothesis, the signalling hypothesis and, to some extent, the market cyclicality hypothesis as possible explanations for the underpricing phenomenon on the Swiss IPO market. We also find evidence for lower initial returns under increased competition among investment banks, and more accurate pricing when book-building is used. To accurately measure the long-term performance of Swiss IPOs, we use a variety of different methods and adjust for possible biases. In contrast to previous findings for the U.S., we do not find a significant drop or strong continuous underperformance of Swiss IPO stock prices in the aftermarket. If there was any evidence for underperformance at all, Swiss IPOs show poor returns only in the very long-run after 48 months of trading.
Keywords: initial public offerings, underpricing, long-run stock performance, market efficiency, Swiss stock market
JEL Classification: G14, G12, G24
Suggested Citation: Suggested Citation
Drobetz, Wolfgang and Kammermann, Matthias and Waelchli, Urs, Performance of Initial Public Offerings: The Evidence for Switzerland (January 15, 2003). Available at SSRN: https://ssrn.com/abstract=370400 or http://dx.doi.org/10.2139/ssrn.370400