What is a trailing stop?

Risk warning: CFDs are complex instruments with a high risk of losing money rapidly due to leverage. 70–80% of retail investor accounts lose money when trading CFDs. Risk disclosure · Past performance.

The trailing distance is defined in advance, usually as a number of pips, points, or a percentage of price, and the stop moves only in the profitable direction. For a long position the stop ratchets upward as the price rises and never falls back; for a short position it ratchets downward as the price drops. Because it only ever tightens, a trailing stop converts unrealised profit into a protected floor without requiring the trader to adjust the order manually.

A trailing stop works by holding a fixed gap between the current market price and the stop level, and only ever moving the stop in the direction of profit. When a long trade rises, the stop is dragged up to maintain that gap; if the price then falls, the stop holds at its highest reached level rather than following the price down. The trade is closed only when the market retraces by the full trailing distance from its best point.

Because the stop ratchets in one direction, it steadily converts unrealised profit into a protected level as a trend extends. The trader sets the distance once and the order does the adjusting automatically, which removes the need to watch and re-place the stop by hand.

• The stop trails behind price by a fixed distance and never widens.
• It moves only in the profitable direction, locking in the best level reached.
• The position exits when price reverses by the full trailing distance.
• For a short trade the logic mirrors this, ratcheting the stop downward.

The trailing distance is defined in advance and determines how far the price can pull back before the stop triggers. It is commonly expressed as a number of pips in forex, points in indices or stocks, or a percentage of the current price, depending on the instrument and the platform. Some platforms also let you set a minimum profit before trailing begins, so the stop starts following only after the trade reaches a chosen threshold.

Choosing the distance is a balance: a tighter distance locks in profit sooner but is more easily hit by ordinary fluctuations, while a wider distance gives the trade more room but surrenders more profit on a reversal. Many traders relate the distance to recent volatility, for example to the average range of the instrument, so the stop sits outside typical noise.

The main drawback of a trailing stop is that it cannot tell the difference between a genuine reversal and ordinary market noise. A distance set too tightly can be triggered by a brief pullback, closing the trade just before the larger move continues without you. This is the central trade-off: the same mechanism that protects profit can also cut a position short.

A trailing stop also offers no protection against gaps or fast moves that jump past the stop level, in which case the exit can occur at a worse price than the stop, a form of slippage. And like any stop, it guarantees an exit attempt, not an exact exit price.

The difference is that a fixed stop-loss stays at a single chosen price for the life of the trade, while a trailing stop automatically moves in the profitable direction as the market advances. A fixed stop defines your maximum loss and leaves it there; a trailing stop starts the same way but then tightens to protect gains as they accumulate.

Neither is inherently better, they serve different goals. A fixed stop suits traders who want a defined risk and a separate take-profit target, while a trailing stop suits those who want to ride a trend for as long as it lasts and let the market decide the exit. The two can also be combined, using a fixed stop early and switching to a trailing stop once a trade is comfortably in profit.

A trailing stop can run in two places, and the distinction matters. A platform-side trailing stop is calculated by your trading terminal or charting software, which means it only updates while that application is open and connected; if your computer sleeps or loses its connection, the stop stops trailing. A broker-side or server-side trailing stop is managed by the broker's or an execution layer's servers, so it keeps following the price even when your own device is off.

Server-side handling is generally more reliable for unattended trading because it does not depend on a local terminal staying online. Execution-infrastructure layers such as PipSync apply stop and take-profit instructions from the server side before an order reaches the broker, so configured risk rules act independently of any local machine; PipSync is one example of this model, not a definition of trailing stops themselves.