stop order in context | images
stop order Noun
orden límite, orden de compra a precio determinado, orden de compraventa a ciertos niveles de precios, orden de suspensión, orden de venta a precio determinado; Synonyms: stop-loss order, limit order, sell-spot order; An order to a broker to sell (buy) when the price of a security falls (rises) to a designated level.

For example, if you bought a stock for 5.00$us and you give a stop order of 25% it means that when your stock loses 1.25$us and its value is 3.75$us it will be sold.

son instrucciones al operador de bolsa, en este caso para comprar o vender cuando el precio llega a un punto determinado

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Note added at 15 hrs (2008-10-02 12:32:01 GMT)
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Atención que stop order no implica suspensión : es sencillamente "an order to buy or sell a security when the security's price reaches or passes a specified level" (Wall st. Words)

(perdon por la falta de tildes)
stop order: order to a securities broker to buy/sell at the Market price once the security has traded at a specified price called the stop price (la accion se opera al stop price y la orden pasa a ser a mercado)
limit order: order to buy or sell a security or commodity at a specific price or better. (solo si la accion se opera al pcio especificado, o mejor, se va a ejecutar la orden)

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Note added at 15 hrs (2008-10-02 13:19:05 GMT)
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la parte de trailing stop order nunca la vi en mis a;os como trader... pero en el Barron's Dict. of Finance and Investment Terms encontre lo siguiente:
In the case of a trailing stop order, the stop price is set at a fixed percentage below the market price and trails it; that is, it increases as the market price increases. It does not decrease, however, so if the market price drops and meets it the stop order is activated.

Wikipedia:
A trailing stop order is entered with a stop parameter that creates a moving or trailing activation price, hence the name. This parameter is entered as a percentage change or actual specific amount of rise (or fall) in the security price. Trailing stop sell orders are used to maximize and protect profit as a stock's price rises and limit losses when it's price falls. Trailing stop buy orders are used to maximize profit when a stock's price is falling and limit losses when it is rising.
For example, a trader has bought stock ABC at $10.00 and immediately places a trailing stop sell order to sell ABC with a $1.00 trailing stop. This sets the stop price to $9.00. After placing the order, ABC doesn't exceed $10.00 and falls to a low of $9.01. The trailing stop order is not executed because ABC has not fallen $1.00 from $10.00. Later, the stock rises to a high of $15.00 which resets the stop price to $14.00. It then falls to $14.00 ($1.00 from its high of $15.00) and the trailing stop sell order is entered as a market order.


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Note added at 16 hrs (2008-10-02 13:24:27 GMT)
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traling stop order: orden "trailing stop" (http://www.fxlatino.com/mails/demo/ordenes.htm)
IF Done: Una orden “If-Done”, conocida también como orden de contingencia, está atada a una orden pendiente. Para poner una orden “If-Done”, usted tendría que poner primero una orden “Stop” o “Limit”, generalmente para abrir una posición. La orden “If-Done” se mantendrá pendiente hasta que su orden “Stop” o “Limit” inicial se haya ejecutado. En ese momento se activará su orden “If-Done” mostrándola como pendiente (http://www.adr.cl/v2/preguntas_frecuentes6.htm)