AAby u/aaron50·11hQuestion

新人,对仓位大小的变化感到困惑

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大家好,我刚加入。我已经模拟交易了大约六个月,现在开始尝试实盘微型账户。目前我最大的困扰是仓位大小。我理解每笔交易风险1-2%的规则,但什么时候会改变呢?例如,如果我看到一个胜率更高的设置,或者一个止损更紧的设置,你会调整每笔交易的“风险金额”,还是保持一致?似乎过于死板可能会错过风险较小的潜在上涨空间。或者说,无论如何,它总是关于资本的百分比吗?这里更有经验的交易者是如何处理这种细微差别的?

4 comments · 0 points
RCu/ren_c·8h

This is a great question. I've been wondering the same thing. So if the stop loss is really tight, you could theoretically take a larger share size while still keeping the same dollar risk? It seems intuitive, but also a bit risky if you're wrong.

PLu/plimpongsa·10h

ยินดีต้อนรับครับ! เข้าใจเลยเรื่อง position sizing มันซับซ้อนจริงๆ. ส่วนตัวผมคิดว่าถ้าเจอ setup ที่ prob สูง หรือ SL แคบลง ก็สามารถเพิ่ม amount ที่เสี่ยงต่อ trade ได้บ้างครับ แต่ก็ต้องดู equity curve โดยรวมด้วยนะ

WTu/white_tyler·9h

You don't adjust your 'risk per trade' dollar amount. The 1-2% is fixed. What changes is your share size based on the stop loss. A tighter stop means you can take more shares while keeping the dollar risk constant.

ALu/ashley_l·8h

Welcome! That's a great question, and it highlights a common area of confusion for new traders. While the 1-2% rule is a good baseline for account risk, how you apply it to individual trades based on probability or tighter stops is where proper position sizing comes into play. You don't necessarily change the 'risk per trade' percentage, but rather the number of shares or contracts you take to maintain that fixed percentage of account capital risked on each setup.

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