股票市場是不是一堆矛盾理論? - 股票
By Hedy
at 2021-03-05T08:51
at 2021-03-05T08:51
Table of Contents
技術分析的盲點就是會有倖存者偏差
拿一檔漲的股票來講
說你看線型這樣走 所以它會漲
但那是因為拿漲的來講
漲的股票本來就會符合技術指標
這時盲點就出現了
符合技術指標
最後股價卻反著走
這種案例有多少?
我更在意的是
到底有沒有一個科學的研究
例如說 把符合「會漲的指標」的股票
全部拉出來 回測一年以上
看勝率到底有多少
證明這是可以勝多敗少的策略
還是射飛鏢
就變成倖存者偏差
符合預期漲上去的被一直講
大家都覺得很準
其他90%死在沙灘上的沒人知道
--
拿一檔漲的股票來講
說你看線型這樣走 所以它會漲
但那是因為拿漲的來講
漲的股票本來就會符合技術指標
這時盲點就出現了
符合技術指標
最後股價卻反著走
這種案例有多少?
我更在意的是
到底有沒有一個科學的研究
例如說 把符合「會漲的指標」的股票
全部拉出來 回測一年以上
看勝率到底有多少
證明這是可以勝多敗少的策略
還是射飛鏢
就變成倖存者偏差
符合預期漲上去的被一直講
大家都覺得很準
其他90%死在沙灘上的沒人知道
--
Tags:
股票
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