# Trailing stops: how they move and where they fail

> A trailing stop moves with price in your favour and never backwards. Here is how to set the distance, why it can fill at a worse price, and when it does more harm than good.

- Canonical URL: https://forextradingcommunity.com/news/trailing-stops-how-they-move-and-fail/
- Type: Guide
- Published: 2026-11-03
- Updated: 2026-11-03
- Publisher: Forex Trading Community (https://forextradingcommunity.com), FTC Editorial Team

A trailing stop is a stop-loss order that follows price. When the trade moves in your favour, the stop moves with it by a set distance. When price moves against you, the stop stays where it is and never moves back. It can lock in part of a gain without a fixed exit, but it has limits that are easy to overlook.

## How the distance is set

Traders usually set the trailing distance in one of two ways:

- **Fixed pips**: for example, 30 pips behind the highest price since entry. It is simple, but the same distance means very different things in quiet and volatile markets.
- **A volatility multiple**: a number of [average true range](/news/average-true-range-atr-and-volatility-stops/) values. This adjusts the distance to recent movement, so the stop has room in a volatile market.

## Where trailing stops fail

- **Noise.** A tight trail is hit by ordinary swings and closes a trade that might have continued. A wide trail gives back more of the gain before it triggers.
- **Gaps and slippage.** Once triggered, a stop becomes a market order. Its fill can differ from the stop price, especially in fast markets or after a gap. The [bid, ask and slippage guide](/news/bid-ask-and-slippage-explained/) explains why.
- **Wider spreads.** Spreads can widen around rollover and major releases, so a stop can fill further from the price you expected.
- **Platform differences.** How the trail is calculated, and whether it works on a partly closed position, depends on the broker and the platform. Test it on a demo account before you rely on it.

## Using one sensibly

Write the rule before the trade: the starting stop, the distance and the reason for both. Do not change the distance in the middle of a move because a trade looks uncomfortable. Review how often the trail was hit and what price did afterwards. For the first stop, before any trail, see [where to place a stop-loss](/news/where-to-place-a-stop-loss/).

## Common questions

### What is a trailing stop?

A stop-loss that moves with price in the direction of a trade by a set distance, and does not move back against it.

### Why does a trailing stop fill at a different price?

Once triggered, it becomes a market order, so the fill depends on the market at that moment. In fast markets or after a gap it can differ from the stop price.

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This article is for information only and is not financial advice. Trading forex and CFDs carries a high risk of losing money.