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发表于 2015-12-5 10:11 PM
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oldwolf 发表于 2015-12-5 08:45 PM
卖的时候好办,主要是买,因为oversold 可能变得更oversold,所以接飞刀的时候,很难找到那个点,右侧操作看 ...
I totally agree. Catching a trade at an oversold or overbought level is like catching a large butcher knife with a bare-hand. It's very difficult to make some good profits out of this method. That said, I still do it sometimes with itchy fingers when I get bored. But I would NEVER use more than 5% of my portfolio to catch such trades because I won't get emotional if it's a losing trade. Yesterday is an example when I used ~$500 to purchase PUT twice with expiration on the same date believing that intraday market was way overbought. I lost $140 for the 1st trade (not including commission) when I stopped out as market kept shooting upward. I made $300 for the 2nd trade when I got out quick enough before market shooting upward again. If I was greedy to hold for 10-minuter longer, the 2nd trade would become a losing trade quickly.
The bottom line is that it's never profitable to trade based solely on OS or OB level. |
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