The relationship between IPO returns and factors influencing IPO performance: case of Istanbul Stock Exchange

Reviews previous research on initial public offering (IPO) pricing and performance, classifying it by six hypotheses which are not mutually exclusive. Uses 1990‐1997 data on IPOs on the Istanbul Stock Exchange to test these hypohteses, explains the methodology and presents the results, which show initial abnormal returns (realized by investors), but no long run underperformance of the market. Analyses the factors affecting short and long run IPO returns, considers consistency with other research and supports the winner’s curse and the fads hypotheses. Concludes that initial abnormal returns are due to both deliberate underpricing and overvaluation by investors’ and that factors which decrease uncertainty lead to lower returns.