Never turn a profit into a loss. If you are using a stop loss order, then raise your stop loss so as to lock in a profit.

不要让一笔获利的交易变成亏损。可利用倒限单持续向停利的方向改变倒限价位以逐渐锁定利润。

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Very simply, the trailing stop maintains a stop-loss order at a precise percentage below the market price (or above, in the case of a short position).

很简单，尾随停止保持停损为了一个准确的百分比低于市场价格(或以上，在很短的立场)。

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

止损单(有时候也叫止损订单)：是限价单的补充。

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To read more, see The Stop-Loss Order: Make Sure Your Use It, A Logical Method Of Stop Placement and Trailing-Stop Techniques.

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Put in a stop-loss order and the one certainty is that you'll lock in a trading commission.

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By buying a longer contract you can reduce transaction costs, but be careful and use a stop-loss order.

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