IPO underpricing and long-term performance in China: the perspective of price limit policy

Abstract

PurposeThe purpose of this paper is to explore how the price limit policy implemented in 2014 affects initial public offering (IPO) underpricing and long-term performance in China.Design/methodology/approachThe data are the IPOs from Shanghai Stock Exchange (SSE) and Shenzhen Stock Exchange (SZSE) between 2004 and 2018. The data are firstly divided into the IPOs before the price limit policy and the IPOs after the price limit policy according to the time of issuance. Then the two groups are divided into 4 subsamples according to the market blocks and the P/E ratio. The authors use multiple regression models to explore the effect of price limit policy in each subsample.FindingsThe first-day price limit system for IPOs is similar to the upward fuse mechanism, the purpose of which is to suppress IPO underpricing. However, this study finds that the policy does not suppress IPO underpricing, but increases the underpricing rate in all subsamples. Besides, the long-term performance in each subsample is different from each other. Main Board stocks’ long-term performance is worse after the policy. The policy makes Small and Medium Enterprise Board (SME Board) and Growth Enterprise Market Board (GEM Board) stocks with high P/E ratios perform better in the long term. For SME Board and GEM Board stocks with low P/E ratios, the policy makes no significant effect.Practical implicationsGood policy intentions may sometimes lead to counterproductive effects. However, since the long-term performance of each subsample is different, it is difficult to judge whether the policy should continue to be implemented or cancelled. Implementing different policies for different subsamples may be a better way to solve this problem.Originality/valueThis paper contributes to the study of IPO underpricing and long-term performance from the perspective of price limit policy.

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