Seasoned equity offerings and the short‐ and long‐run performance of initial public offerings in the UK
研究英国市场1980-1991年间IPO后的增发行为，发现IPO首日回报高的公司更早重返市场增发，但增发公告后股价先涨后跌，尤其是增发规模相对较小的公司表现更差。
Abstract In contrast to the US practice, rights issues is the predominant method of raising additional equity capital in the London market. the UK evidence for the period 1980‐1991 provides no support to the hypothesis that IPO firms deliberately underprice to signal their quality and facilitate subsequent seasoned equity offerings. the level of initial returns is related neither to the size of the issue nor to the price response at the announcement of a rights issue. the results demonstrate, however, that firms with higher first day returns are quicker in returning to the market for additional equity capital. There is also strong evidence to suggest that the announcement of a seasoned equity offering follows a period of significant rises in the stock prices of reissuing firms. Such gains are, however, dissipated quickly in the 18 months after the announcement of the seasoned equity offering. the level of underperformance is particularly pronounced for firms that raised relatively small subsequent amounts of capital in relation to funds raised at the initial offering. Thus, the paper documents a pattern of post‐issue behaviour which is fundamentally similar for both unseasoned and seasoned equity offerings.