魔術數字56%... - 財經
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By Hedwig
at 2016-02-04T09:53
at 2016-02-04T09:53
Table of Contents
好久沒PO文了,吹頂板已經被每日閒聊給淹沒...這是我當板主失職的地方,
請大家見諒. Orz (跪)
昨天因為我美國的友人告訴我,台灣的WorldQuant公司給他Offer,要他從波士頓
搬到台北...他問我的意見,我開始Google了一下這家公司,沒想到意外看到PTT
Finance板有人提到普林斯頓有個老師,說他有個複雜的演算法可以56%的勝率預
測股市.但他覺的這系統不會有用. 56%其實是一個我很熟悉的數字...
如果要用全自動演算法,去預測台股每日的漲跌,我目前看到最好的方法(很學術,
很複雜)就是56%, 但我看的方法100%不是那位Princeton老師的做法.大家一定
覺得56%勝率好差喔...但仔細靜下來想想:
假如台股一年250個交易日. 每天猜漲跌,56%(勝)-44%(賠)=12%(淨利)
250日 * 12% = 30日. 假如平均每天長跌幅有50點, 一年單口淨賺1500點.
假如有100萬本金,以400點當做每口的虧損容忍度, 相當於差不多兩口保證
金去做一口, 這樣去做,一年差不多本利合可達到500萬 (400%的報酬率).
這樣其實績效是很驚人的. 但是一想到只有56%勝率,就沒有熱情去試...人性呀!
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