ATR Trailer Expert Advisor for MT4/MT5 – Automated ATR-Based Trailing Stop Trading System

12/16/2022

ATR Trailer is a unique Forex Expert Advisor for MetaTrader 4 and MetaTrader 5 that focuses entirely on trailing stop management rather than traditional entry signals.

Instead of predicting market direction, this EA relies on the Average True Range (ATR) indicator to follow price movements and capture large trends automatically.

The strategy is designed to stay in the market continuously, allowing profits to run while cutting losses using a dynamic, volatility-based trailing stop.

Core Trading Concept
ATR Trailer does not use fixed entry rules such as indicators, patterns, or filters. Instead, it operates based on the following logic:

  • The EA opens an initial trade in a predefined direction
  • A trailing stop based on ATR value × multiplier is applied immediately
  • When the trailing stop is hit, the current position is closed
  • A new position is opened in the opposite direction
  • This cycle repeats automatically

By continuously switching direction after each stop-out, the EA aims to stay aligned with strong market moves while minimizing exposure during ranging conditions.

ATR-Based Trailing Stop
The trailing stop is calculated using the Average True Range, making it adaptive to changing market volatility.

With the default settings:

  • ATR Period: 24
  • ATR Multiplier: 3
  • Recommended timeframe: H1

The trailing stop is designed to cover approximately 99.7% of normal daily price fluctuation, based on statistical assumptions of price movement distribution. This allows the EA to stay in winning trades longer during strong trends.

Key Features

  • Fully automated ATR-based trailing stop system
  • No fixed stop-loss or take-profit levels
  • Trades continuously in alternating directions
  • Volatility-adaptive risk control
  • Simple logic with minimal parameters
  • Suitable for trend-following and momentum markets
  • Compatible with MetaTrader 4 and MetaTrader 5

Backtest & Forward Test Results
A forward demo test was conducted on EUR/USD (H1 timeframe) over an 8-month period, using default settings and a fixed position size of 0.1 standard lots.

Test results:

  • Net profit: approximately 15.3%
  • Maximum drawdown: approximately 5.8%
  • Total trades: 200
  • Winning trades: 39.5%

Despite a relatively low win rate, profitability was achieved through larger average winning trades, which is typical for trend-following strategies.

Trading Frequency
On the EUR/USD H1 chart, ATR Trailer trades approximately once per day on average, making it suitable for traders who prefer automated systems with moderate trading activity.

Input Parameters
ATR Trailer offers a small and simple set of inputs:

  • ATR_Period – period of the ATR indicator used for trailing stop calculation
  • ATR_Multiplier – multiplier applied to ATR value
  • StartWith – defines the direction of the first trade
    • 1 = Short
    • 2 = Long

These parameters can be optimized for different symbols and timeframes.

Frequently Asked Questions
Does this EA use stop-loss or take-profit?
No. ATR Trailer does not use fixed stop-loss or take-profit levels. The ATR-based trailing stop is used for both loss limitation and profit taking.

How often does it trade?
On the H1 EUR/USD chart, the EA trades roughly once per day.

Conclusion
ATR Trailer Expert Advisor is a minimalist yet powerful trading system built around one core idea: let profits run while using volatility-based trailing stops to control risk.

By removing complex entry logic and focusing solely on adaptive trailing stops, this EA provides a systematic approach to capturing large market moves with controlled drawdown.

It is best suited for traders who understand trend-following strategies and prefer simple, rule-based automation.

ATR Trailer | MT4
ATR Trailer | MT5

Password:forexsignalpro.net

Disclaimer: Always test the robot on a demo account before using real money. Trading involves risk.