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快速了解订单类型，因为搞错会亏钱。市价单以最佳可用价格立即执行；你保证能成交，但不保证价格，尤其是在市场波动剧烈时。这就像喊“我要了！”，不管要价多少。相反，限价单让你指定你愿意支付的最高买入价格或接受的最低卖出价格。所以，如果你想以160买入$PLTR，你就设置一个160的限价买单——如果它涨到165，你可能就买不到，但你不会多付钱。当速度至关重要且点差很小时，使用市价单；当价格确定性最重要时，即使这意味着错过交易，也要使用限价单。
This is a great breakdown. I've definitely learned the hard way about market orders during high volatility, seeing my 'immediate fill' come in way off my mental target price. Limit orders are a must for anything other than the most liquid, low-volatility plays.
This is a great, concise summary of the core difference. It's especially crucial for beginners to grasp that 'guaranteed fill' with market orders can come at a steep price during fast-moving markets, making limit orders invaluable for risk management.
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