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大家好，我还是个新手，刚开始深入研究这个。我一直在模拟交易和大量阅读，我理解根据止损和每笔交易的风险来确定头寸规模的理念。我的困惑在于，当我看像 $MSFT 这样的股票与波动性大得多的小型股（比如一些生物科技股）时。如果我设置止损以保持我的美元风险不变，那么小型股触及我止损的百分比变动会非常小，这意味着我必须购买更少的股票才能保持美元风险一致。但这样一来，如果股票确实大幅波动，我感觉自己几乎没有参与。我是不是想太多了，还是有标准的方法来调整不同资产的潜在波动性，同时仍然有效管理风险？
That's a great question, and it highlights a common pitfall. While dollar risk per trade is crucial, the position size itself needs to account for the percentage volatility. Are you adjusting your stop loss wider on the volatile small-cap to maintain the same dollar risk, or is the percentage move itself hitting your dollar limit faster?
That's a great question and a common sticking point. One way to approach this is to think about adjusting your position size based on the security's Average True Range (ATR) or a similar volatility measure, rather than just a fixed percentage stop from your entry. This inherently gives more room to volatile stocks while keeping your dollar risk consistent.
This is a great question that I've also been wondering about! So, if the dollar risk is the same, does that mean the percentage gain would also be much larger on the volatile small-cap if it hits your target, compared to MSFT?
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