全球經濟及投資環境轉變極大，造就面板產業一片低迷，而夏普因為受到金融風暴的影響，再加 上台灣、中國大陸、南韓的液晶面板產業興起，競爭越演越烈，導致夏普較沒有價格談判的優勢，但 由於夏普的品牌及技術不僅將能提供鴻海的大客戶-蘋果，有更多廣泛的零件應用，因此鴻海夏普合併 對於未來將會有更重要性的突破與提升。本研究，以事件研究法分析鴻夏戀對蘋果概念股之影響。 本研究以蘋果概念股作為研究對象，以傳出簽約、夏普鉅額虧損、入股及簽約後為事件日，股價 資料涵蓋範圍自 2012 年 03 月 27 日至 2016 年 04 月 02 日。樣本公司之選擇係由分析師報告， 並佐以公開新聞資訊作為蘋果概念股之篩選，本研究篩選後共計 14 家企業為蘋果概念股。 實證結果發現鴻海與夏普簽約前後四個事件日之股價有異常報酬率之現象。簽約日之後過一個月 橫斷面統計量(累積)CAR 曲線在第 14 天後顯著下降，驗證中時電子報報導投資人普遍擔心雙方的企 業文化不同；第二個事件日-鉅額虧損事件，我們觀察到就在鉅額虧損事件日爆發後 9 天後，可明顯看 出橫斷面統計量(累積)走向從負值持續攀升到正值。因為市場普遍不看好這項重大併購案，認為鴻海 在得知巨額虧損後，兩家公司並不會再有進一步合作意圖，因此鴻海股價開始呈現慶祝行情。第三個 事件日-夏普與鴻海簽約，我們發現到(累積)異常報酬率 CAR 依然呈現負值趨勢，但是可以看出 13 天 後投資人對此項併購案信心有慢慢回升，儘管擔心，但相信鴻海能跨越障礙，帶領夏普展現不一樣的風貌。

There are huge change in global economy and investment environment and generate an economic downturn in the panel industry. Because Sharp's brand and technology will not only provide Hon Hai's big customers-Apple, but also supply more extensive parts application, so Hon Hai want to merge with Sharp. This study wants to analyze the influence of Hon Hai's merger for Apple-related stocks by Event-Study analysis. This study takes the Apple concept unit as the research object, the stock price cover from March 27, 2012 to April 02, 2016. The selection of the sample was reported by analysts and accompanied by public news information as the screening of Apple's conceptual unit; the study filtered a total of 14 enterprises for Apple Concept unit. The empirical results found there are abnormal return rate about event days of Hon Hai and Sharp signed up. About Hon Hai and Sharp signed up, the average (cumulative) abnormal return rate (CAR) existences negative and remarkable abnormal remuneration after fourteen event day. About the second event day, the average (cumulative) Abnormal return rate (CAR) is significant positive and remarkable abnormal remuneration from after fourteen event days. About the third event day, the average (cumulative) Abnormal return rate (CAR) is significant negative and rise from after thirteen event days slowly.