本研究主要探討之部分為上市櫃企業採用私募股權之方式辦理籌資,是否存在著超額報酬,以民國95年1月1日至98年3月31日辦理私募普通股權之247 個(181家)之上市上櫃公司做為研究對象,以事件研究法驗證其私募宣告時是否存在異常報酬。 研究結果發現如下: 一、不同交易市場之私募完成宣告效果存在著差異,二者雖皆為正向報酬,唯其中在上櫃交易市場之公司因訊息傳遞效果之故,其私募完成宣告後對股價造成異常報酬之情形較為上市公司為之顯著,且就其影響強度而言,上櫃市場亦較上市市場為大。 二、在不同私募定價區間之間亦存在著差異,價格於50元以上之中高價股之股價反應已於私募完成宣告日前事先反應;而低於票面發行者,則於近私募完成宣告日股價方為反映,但反應強度及累積報酬率皆不遜色於中高價股,猶以發行價格越低者為最,其所反應之累積報酬與強度皆高於中高價股。
The main portion of this discussion is about whether abnormal return exists if the companies listed on TSE or OTC use private equity as an instrument to raise capital. We select 247 cases from 181 companies listed on TSE or OTC which issue common shares using private equity previously as our study sample and implement event study methodology to test whether abnormal return exists when private equity is declared. 1. TSE and OTC trading market exists significant difference on returns regarding private equity completion announcement although both markets show positive returns. In fact, due to the information transmitting speed in OTC market, the abnormal return effect regarding the completion of private equity announcement is more evident than companies listed in TSE. Furthermore, from the effective strength per se, OCT market is greater than TSE market. 2. There is also a significant difference existed among different private equity pricing setting zones. For the middle to high price shares (above NTD 50 dollars), the share price has already incorporated the private equity effect before the completion announcement date. As for the share price below par value, the share price will be affected close to private equity completion announcement date, but the reacting strength and accumulated return are not less than middle to high price shares. Specifically, the lower the stock issuing price is, the greater accumulated return and reacting strength it will have comparing to middle to high price shares.