主要用于解释那些在首次公开发行后想要通过再次发行股票进行融资的公司其股票低价发行的现象。信号假说认为市场中往往存在着业绩较好和业绩较差的两类公司,业绩较好的公司通过低价发行方式向市场中的投资者传递这样一种信息—— It is mainly used to explain the low-priced distribution of shares of companies that want to raise money by repurchasing shares after the initial public offering. The signal hypothesis argues that there are often two types of companies with better performance and poorer performance in the market. Companies with better performance send such a message to investors in the market through low-price issuance -