80%的獲利來自20%的交易 - 股票
By Faithe
at 2014-02-05T13:21
at 2014-02-05T13:21
Table of Contents
Topic:80%的獲利來自20%的交易
[前言]
其實這也不是甚麼全新的觀點 只是世界上普遍存在的現象
說穿了一文不值 不過稍後阿鼻會簡單附上對帳單 以供實證研究
如果各位有學過管理學 大概有聽過80/20法則 甚至是90/10法則
簡單說就是 一個Sales 花了百分之80的時間 只完成了百分之20的業績
剩下的80% 業績卻只由關鍵的20% 時間來完成
或是一個保險公司的總業績的80% 幾乎是由 Top 20% 的Sales 所貢獻
網路上有不少相關研究 大家有興趣可以google 關鍵字看看
關鍵字 pareto distribution / 80/20 法則
http://ppt.cc/xeW4 (關於80/20法則的概述)
[本文]
至於在實戰交易方面 是否也存在著80/20法則呢?!
眼見為憑
以下是阿鼻在 2014/01/01- 2014/01/31 的所有交易對帳單
礙於主題討論 阿鼻只公布第一頁的日期 和最後的總額
http://ppt.cc/Io9K
http://ppt.cc/sArM
==============================================================================
以下是阿鼻在 2014/01/21- 2014/01/23 的所有交易對帳單
http://ppt.cc/XARg
http://ppt.cc/llMt
由圖可知 阿鼻這個月買進金額為 4,854,596
賣出金額為 5,351,959
實際獲利為 477,637
實際獲利百分比為 9.84%
由另兩圖可知 阿鼻三天內買進金額為 1,510,678
賣出金額為 1,976,762
實際獲利為 466,084
實際獲利百分比為 30.85%
==============================================================================
[驗證] 1月份有交易的16個交易日 (1/2-->1/23 扣除周五周六)
總獲利為 NT $477,637
最後3個交易日 1/21 1/22 1/23
總獲利為 NT $466,084
故其他13個交易日 總獲利為 477,637- 466,084 = 11,553
80/20 法則應用在阿鼻2014年一月份對帳單的意思是:
阿鼻百分之80%的獲利來自於百分之20%的交易
直觀來看 前面13個交易日有點做白工 只賺 NT$ 11,553
占整個月獲利的 2.4188%
後三個交易日 怒賺 NT $466,084
占整個月獲利的 97.5812%
結果遠大於80% @@
讀者可能想問 沒錯獲利是超過80% 但怎知來自20%的交易
別心急 阿鼻就時間面 來分析
[時間面]
3個交易日 占本月16個交易日的時間百分比為 18.75% < 20%
故由上述例子可知 80/20 法則確實也存在金融交易市場
惟個人的比例 可能因人而異 有人比較偏向90/10
有人比較偏向70/30 80/20 法則大概是介於之中
這篇打的有點落落長 請允許阿鼻 賣個關子
其他篇幅再來介紹 一些勝率較高的交易心法吧
畢竟 本篇主題是
80% 的獲利 來自20%的交易
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