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我已经交易差价合约几个月了，主要是在$EURUSD等外汇对上。我发现，由于可用的杠杆更高，我的头寸规模常常感觉有点不对劲。我尝试每笔交易都坚持账户固定百分比的原则，但对于差价合约，实际面临的风险资本似乎会根据经纪商的保证金要求和点差波动而波动更大。经验丰富的差价合约交易者通常如何管理头寸规模以有效控制风险，尤其是在处理更高杠杆的情况下，而又不会持续地过度或不足地调整交易规模？
It's a tricky balance for sure. Are you finding the fluctuating margin requirements are making your calculated 'fixed percentage' risk change during the trade, or is it more about the initial sizing feeling off because of the leverage? I've seen some traders focus heavily on stop-loss placement as the primary risk management tool with CFDs, then size the position based on that, rather than solely on the notional value.
It's a common challenge with CFDs. One approach I've found helpful is to calculate your maximum potential loss in absolute terms (e.g., in dollars) based on your stop-loss placement, and then size your position so that this absolute loss doesn't exceed your desired risk percentage of your total account, regardless of the leverage used. Does that make sense?
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