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太多新交易者将头寸规模仅仅等同于他们可用的资金，这简直是自寻死路。这不仅仅关乎你拥有多少钱；它关乎你愿意在单笔交易中损失多少，这由你的止损和货币对的实际波动性决定。例如，如果你交易$KESUSD，止损距离是30点，那是一回事。如果你交易$ZARUSD，止损距离也是30点，考虑到$ZARUSD通常更宽的日内波动范围，这30点往往代表价格波动的更大百分比，并且可能更频繁地被触及。真正的头寸规模将你的风险（例如，总资本的1-2%）与止损距离和货币对的平均真实波动范围联系起来，而不仅仅是你凭空捏造的固定手数。它确保无论货币对或止损距离如何，你潜在的美元损失都保持一致且可控。
This is a really insightful point. So, are you saying that even if I have a big account, I should still risk only a tiny percentage of it per trade, especially with more volatile pairs, to account for the wider stops needed?
It's a solid point. Many overlook how much even a small, highly volatile move can chew through a percentage of their account, regardless of the initial capital outlay. It's more about risk per trade than just capital allocation.
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