Donchian Breakout – Fully Mechanical System

Project: Donchian Breakout – Fully Mechanical System
Platform: MetaTrader 5
Timeframe: H1 Only

Develop a fully automated MT5 Expert Advisor implementing a mechanical Donchian breakout strategy with ATR-based trailing stop.

The EA must operate independently per symbol and be suitable for 24/7 VPS execution.

No discretionary logic. No time filters.

The EA must function correctly on:

• EURUSD (Forex CFD)

• US500 (Index CFD)

• XAUUSD (Gold)

Each chart runs independently.
Maximum 1 open trade per symbol.

• EA must operate ONLY on H1 chart.

• If attached to another timeframe, EA must not trade.

Indicator Definitions

• Donchian Channel Period: 20 (default, editable)

• ATR Period: 20 (default, editable)

• ATR Multiplier: 2.5 (default, editable)

All indicators calculated using CLOSED candles only.

Long Entry Condition

1. A candle CLOSES above the previous 20-period Donchian High.

2. Entry executed at market open of the next candle.

3. Only if no open trade exists for that symbol.

Short Entry Condition

1. A candle CLOSES below the previous 20-period Donchian Low.

2. Entry executed at market open of the next candle.

3. Only if no open trade exists for that symbol.

Important Signal Rules

• Breakout must be based on CLOSED candle only.

• No intra-candle triggers.

• Must prevent duplicate entries from same breakout candle.

• Risk per trade: 0.5% of account balance (editable input)

• Stop distance determined by ATR-based initial stop

• Lot size calculated automatically based on:

  • Stop distance

  • 0.5% account risk

  • Symbol contract specifications

Must work correctly for indices and gold.

Initial Stop Loss

• Set at 2.5 × ATR(20)

• Based on ATR value of most recently closed candle

Trailing Stop

• Dynamic trailing stop based on 2.5 × ATR(20)

• Stop must only move in profit direction

• Stop must never widen

• Trailing updates on every tick (preferred)

• Maximum 1 open trade per symbol

• No pyramiding

• No time filters

• No news filters

• New trade only after previous position fully closed

• Magic number input required

• Risk % (default 0.5%)

• Donchian Period (default 20)

• ATR Period (default 20)

• ATR Multiplier (default 2.5)

• Slippage

• Magic Number

• Prevent duplicate entries on same candle

• Must handle broker requotes

• Must function correctly after terminal restart

• Must not open multiple trades accidentally

• Must log errors clearly in Experts tab

• Compiled .ex5 file

• Full source code (.mq5)

• Clear instructions for installation

• Commented code

The EA must be tested on demo account.

Payment will only be released after:

• Entry logic confirmed correct

• Risk calculation verified accurate

• ATR trailing logic verified

• No execution or duplication errors

Maximum budget: <$500 USD (competitive quotes welcome)

Please confirm:

• You understand closed-candle Donchian logic

• You have built ATR-based trailing systems before

• Estimated delivery time