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  • 學位論文

台灣上市(櫃)公司融劵最後回補前後股價行為之研究

Price Behavior of Stocks around the Last Buyback- Short for Taiwan Listed Companies

指導教授 : 顧廣平

摘要


本研究針對2000年至2019年間,曾經在研究期間融券回補的台灣上市(櫃)公司為樣本,利用事件研究法檢定融券最後回補日前後10個交易日,其普通股價格是否存在顯著異於零之平均異常報酬或累積平均異常報酬,並再分別針對股東大會、除息、除權及除權息之停止過戶起日前之融券最後回補日前後的股價行為進行比較分析。 研究結果顯示融券最後回補日前後,股價產生劇烈波動,台灣上市(櫃)公司股價在融券最後回補日前10日與當日存在顯著的正向異常反應,隨後曾出現價格反轉之過度反應現象,且不論在股東大會、除息、除權及除權息之融券最後回補前後的股價行為皆存在相似之結論。

並列摘要


This research is based on the sample of Taiwan listed companies that employed to buyback-short during the study period from 2000 to 2019. The event study method is used to test whether there is an average abnormal return or cumulative average abnormal return that is significantly different from zero in the 10 trading days around the last buyback-short. Furthermore, the comparison analysis of the stock price behavior around the last buyback-short before the closing dates of the shareholders' meeting, ex-dividend and ex-rights respectively. The results show that the stock price fluctuates sharply around the last buyback-short. The stock price of Taiwan listed companies has a significant positive abnormal effect before the last buyback-short, and then there is an overrecation of price reversal. Regardless of the stock price behavior around the last buyback-short of the stockholders' meeting, ex-dividend, and ex-right, there are similar conclusions.

參考文獻


中文文獻
1.吳俊毅 (2011) ,「融券回補之資訊內涵及其獲利性投資策略之研究」,台南應用科技大學商學與管理研究所碩士論文。
2.葉怡芬 (2004) ,「信用交易之資訊內涵及其投資策略獲利性之研究」,國立成功大學財務金融研究所碩士論文。
3.彭明彥 (2020) ,「融券餘額對個股超額報酬率之影響」,國立政治大學國際經營與貿易學系碩士論文。
4.董欣靜 (1997),「信用交易與股票股利除權前股價變動關係之探討」,淡江大學會計學系碩士論文。

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