Re: Position Sizing(部位管理) - 財經

By Olivia
at 2012-04-20T16:49
at 2012-04-20T16:49
Table of Contents
恕刪.
凌波大這文章立意不錯.
但是我感覺這有點把部位決定跟停利機制綁在一起.不知道是不是我有誤解
我個人淺見是應該把這兩個部位分開來看才對.
目前個人我是採用Van Tharpe聖盃一書的提到的方式.
以1%總資產除以預計虧損來決定口數.
那預計虧損怎麼算呢? 跳空怎麼辦?
我個人目前是以歷史虧損交易均值為準.
有時多虧,有時少虧但是我個人還可以接受.
書上載明這方式的好處是於虧損期時,因為本金越來越少.
不會等到系統破MDD,才在降口數.屆時傷害都已經造成了.
這方法在不順的過程中就已經漸漸下降口數了.
另外就停利機制而言.
我之前有看過一本書"20招成功交易策略"
裡面有一個方法蠻妙的.就是處於獲利狀態N天後.
就於收盤前停利.
我回測過.當N=4時對於台指波段單真的有幫助.
這個值對於去年8/8那波.也是很準的喔!
以上跟大家分享.
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