Information Spillover and Demand Shock Effect of the IPOs on the Stock Price of the Competitors: Evidence From the Korean Stock Market

Jae Hoon Min

International Journal of Financial Research, 2020, vol. 11, issue 5, 1-12

Abstract: This paper examines the impact of IPOs on the stock prices of competing companies in the same industry in the Korean stock market. By observing the stock price responses of competitors at the time of IPO announcement and listing, this study attempts to separately examine the effect of IPO's information transfer and its impact on the stock demand of competitors. Before and after the IPO announcement, the stock prices of competitors did not change significantly. On the other hand, during the period surrounding the IPO stock listing, the stock price of competitors showed a significantly negative decline. This suggests that as the IPO stock related information was revealed through the public offering process, it negatively affected the stock price of competing companies. Also, the listing of IPO stocks seems to have adversely affected the stock demand for competing companies. In particular, among the effects of information transfer, the competitive effect is overwhelming, and the factors that influence relative competitiveness in the industry between competitors and an IPO company, such as operating profitability and R&D investment, are found to have a substantial influence on the share price of competitors.

Keywords: initial public offering; information spillover; the demand shock (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:jfr:ijfr11:v:11:y:2020:i:5:p:1-12

DOI: 10.5430/ijfr.v11n5p1

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