Pozzo01

Bollinger Reversion EA (MT5)

Bollinger Reversion is a fully automated Expert Advisor for MetaTrader 5 designed to trade mean reversion scenarios using Bollinger Bands combined with ADX-based trend filtering and robust risk and margin management logic.

The core strategy seeks price reversion after volatility expansion:

• Sell positions are opened when price exceeds the upper Bollinger Band.

• Buy positions are opened when price falls below the lower Bollinger Band.

To reduce exposure during strong trends, entries are filtered using ADX, DI+ and DI- thresholds, allowing the EA to operate primarily in ranging or weakening-trend conditions.

Key Features

• Configurable Bollinger Bands

  • Custom timeframe

  • Period and standard deviation inputs

• ADX Trend Filter

  • Minimum ADX threshold

  • Maximum DI+ and DI- limits to avoid directional momentum

• Dynamic Position Sizing

  • Lot size calculated based on free margin usage (%)

  • Automatic normalization to symbol volume constraints

  • Built-in protection for low free margin conditions

• Advanced Risk Management

  • Optional take profit and stop loss based on account percentage

  • Multiple margin-recovery exit rules to prevent overexposure

  • Circuit breaker mechanism that closes all positions if equity drops below a defined drawdown from peak balance

• Time-Based Controls

  • Trading window defined by server time (GMT)

  • Automatic position closure outside trading hours

  • Optional Friday close to avoid weekend risk

  • Maximum holding time logic with minimum profit requirement

Intended Use

This EA is intended for traders who:

• Prefer mean reversion strategies

• Require strict margin and drawdown control

• Operate leveraged accounts and want automatic protection mechanisms

• Trade single-symbol strategies with controlled exposure

Notes

• Designed for MetaTrader 5 only

• No martingale or grid logic is used

This Expert Advisor prioritizes capital preservation, controlled leverage, and disciplined exits, making it suitable for traders seeking structured and rule-based automation rather than aggressive position stacking.