The trailing stop feature allows traders to place a stop loss order which automatically updates to lock in profit as the market moves in the trader’s favor.  Trailing stops can be placed by clicking the “advanced” button in the “Create Market Order” or “Stop Order” window. 

After checking the “Trailing Stop” box in the market order or stop order window you will be prompted to enter an amount for the “Rate Min. Move” which determines how many pips the market must move in favor of the position before the stop order begins to trail.

Example:

A trader buys EUR/USD at 1.2100 and places a 50 pip stop at 1.2050.  The trader then checks the “Trailing Stop” box to activate a trailing stop and selects 30 as the value for the Rate Min. Move. 

The market then moves up by 30 pips to 1.2130 at which point the traders stop moves from 1.2050 to 1.2080 where it will stay until the market moves up by another 30 pips.