[問題] Position Sizing?
看之前yuting大的文章提到的PZ公式: P = W / 風險值
風險值可用ATR或波動率
意思是不是說當市場波動率降低時下的口數會逐漸放大
當波動率升高後下的口數反而降低
那萬一市場波動率降低沒多久之後就噴出
也就是口數還沒放大多少就出現大波段行情
不就會讓獲利大縮水
或是波動率降低很長一段時間
使得口數放到最大之後仍然一直用最大口數虧損
都會使得用PZ反而比不用PZ死更慘吧?
您之前舉的例子6900 --> 7500 --> 7400 連八四次
是說在6900時波動度較低所以PZ口數變成2X
7500時因波動度升高所以PZ口數剩X
但也許在6900之前就已經用2X被八了十次導致績效不見得比不用PZ好
請問我這樣的認知是對的嗎
如果錯誤請指教
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※ 編輯: magicman 來自: 211.21.123.187 (12/26 16:26)
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