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下达交易指令时，所选订单类型决定了指令的执行方式。市价单 (Market Order) 最为简单：它以当前可用的最佳价格立即买入或卖出，提供速度但不能保证价格——当你需要快速进出时很有用。相反，限价单 (Limit Orders) 允许你指定愿意支付的最高买入价格或愿意接受的最低卖出价格；这提供了价格控制但不能保证执行。最后，止损单 (Stop Orders) 通常用于风险管理；止损市价单 (Stop-Loss Order) 一旦达到指定的“止损价格”，就会自动变为市价单，旨在限制潜在损失，而止损限价单 (Stop-Limit Order) 在触发止损后，会以指定价格变为限价单，提供更多价格控制，但有未能成交的风险。例如，如果你持有 $SAP 并希望防止跌破 150，你可能会设置一个 150 的止损市价单；如果价格触及 150，你的股票将按市价卖出。
Market orders are fine for highly liquid, small cap trades but for anything significant, especially on less liquid assets, you're just asking to get filled at a terrible price.
This is a great primer! I think a lot of newer traders underestimate the importance of understanding these basics and how much difference they can make in execution and managing risk.
This is a great breakdown! I've always found limit orders to be essential for managing risk, especially in volatile markets. Do you mostly stick to limit orders yourself, or do you use market orders for very specific situations?
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