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Seng Heng Bank – Center for Investment and Risk Analytics

              誠興銀行 – 投資及風險研究中心

財來自有方
                               刊登日期:二零零九年六月八日 (澳門日報)

                   作者為誠興銀行分析師黃碩東

                          長 揸短抄 ?

筆者近日看到一編報導指出,於美國散戶的投資回報跟買賣頻率是成反比的,即短抄
者的投資成績不及長線投資者.而於台灣,抄即日鮮的投資者8成以上會於6個月內
虧本.那短抄真的不及長線投資嗎?

短抄要成功,便要有良好的策略,心理質素及果斷性,缺一不可.但住住散戶三樣都
無,那當然是輸多羸少.短抄的目的當然是希望找出短期最具爆炸力的股票.但有多
少人真的有研究過這些股票擁有的特性?多數散戶只會看看圖表憑感覺或道聽途說來
作出買賣決定.就算是幸運撞中一隻最終上升十倍的股票,但往往可能在上升幾十巴
仙時已經獲利賣出.事實上成功的短線投資者往往其輸贏比率只是約一半,例如買1
00隻,便是50隻賺錢50隻輸錢.但其贏錢交易的平均盈利百分比一定會比輸錢
的為高,即全部獲利交易的平均升幅可能是20%,而輸錢交易的平均跌幅可能只是
10%.為什麼能這樣做到?因為他們明白有些股票可以升到你唔信,採用順勢而行
的策略,並不會如很多散戶般看到股票上升2-3成便會快快賣出,所以獲利便會較
高.相反輸錢的交易就會快快賣出.這樣便能做到贏間廠,輸粒糖.

隨要了解那些是具爆炸性的股票及採用順勢而行的策略,投資者的心理質素及果斷性
同樣重要.很多時我們很容易受到別人的影響,成功的短抄者並不會胡亂作出買賣決
定或聽別人的建議,只會堅信自己憑經驗或經研究出來的交易之道.而當股價到了早
前定下來的止賺或止蝕位時,往往能夠慣徹執行.而隨着科技之進步,現時較先進之
証券行已經可以設定止賺或止蝕盤,所以理論上我們是不需要無時無刻看着報價機的.
事實上看得太多反而累事,因為會受到股價的上落而影響到投資者的情緒,從而可能
會作出一些不跟策略而行的決定.

長線投資的好處是心理質素及果斷性的重要性變得較少,因為不需要作出頻密的投資
決定,正所謂多做多錯,少做少錯.當然投資者要懂得選擇那些是具長線投資價值的
股票.筆者相信在擁有良好的策略,心理質素及果斷性下,短抄是有利可圖的.但多
數散戶並不具備這些條件,所以便會得出短抄者8成虧本之研究結果,看來在一般投
資者而言,要錄得較好之回報還是應該長揸優質股,少作短線之買賣.




                                           
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  • 1. Seng Heng Bank – Center for Investment and Risk Analytics 誠興銀行 – 投資及風險研究中心 財來自有方 刊登日期:二零零九年六月八日 (澳門日報) 作者為誠興銀行分析師黃碩東 長 揸短抄 ? 筆者近日看到一編報導指出,於美國散戶的投資回報跟買賣頻率是成反比的,即短抄 者的投資成績不及長線投資者.而於台灣,抄即日鮮的投資者8成以上會於6個月內 虧本.那短抄真的不及長線投資嗎? 短抄要成功,便要有良好的策略,心理質素及果斷性,缺一不可.但住住散戶三樣都 無,那當然是輸多羸少.短抄的目的當然是希望找出短期最具爆炸力的股票.但有多 少人真的有研究過這些股票擁有的特性?多數散戶只會看看圖表憑感覺或道聽途說來 作出買賣決定.就算是幸運撞中一隻最終上升十倍的股票,但往往可能在上升幾十巴 仙時已經獲利賣出.事實上成功的短線投資者往往其輸贏比率只是約一半,例如買1 00隻,便是50隻賺錢50隻輸錢.但其贏錢交易的平均盈利百分比一定會比輸錢 的為高,即全部獲利交易的平均升幅可能是20%,而輸錢交易的平均跌幅可能只是 10%.為什麼能這樣做到?因為他們明白有些股票可以升到你唔信,採用順勢而行 的策略,並不會如很多散戶般看到股票上升2-3成便會快快賣出,所以獲利便會較 高.相反輸錢的交易就會快快賣出.這樣便能做到贏間廠,輸粒糖. 隨要了解那些是具爆炸性的股票及採用順勢而行的策略,投資者的心理質素及果斷性 同樣重要.很多時我們很容易受到別人的影響,成功的短抄者並不會胡亂作出買賣決 定或聽別人的建議,只會堅信自己憑經驗或經研究出來的交易之道.而當股價到了早 前定下來的止賺或止蝕位時,往往能夠慣徹執行.而隨着科技之進步,現時較先進之 証券行已經可以設定止賺或止蝕盤,所以理論上我們是不需要無時無刻看着報價機的. 事實上看得太多反而累事,因為會受到股價的上落而影響到投資者的情緒,從而可能 會作出一些不跟策略而行的決定. 長線投資的好處是心理質素及果斷性的重要性變得較少,因為不需要作出頻密的投資 決定,正所謂多做多錯,少做少錯.當然投資者要懂得選擇那些是具長線投資價值的