当市价达到停损价格时即成为市价委托或限价委托的委托方式。

Stop Order An order which becomes a market or a limit order when a specified price is reached.

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在剧烈波动的市场中，经济商可能不能够以交易者指定的价格执行限价单和止损单。

Under volatile market conditions a broker may not be able to execute a limit or stop order at the exact price specified by the trader.

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止损单(有时候也叫止损订单)：是限价单的补充。

Stop order (sometimes known as a stop loss order) : The complement of a limit order.

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