BB Breakout BB breakout strategy · Free · Open-source Source-verified data · REAL-DATA-SOURCE · earnforex.com/metatrader-expert-advisors/bollinger-bands-breakout

Bollinger Bands Breakout EA

Free open-source BB breakout EA · Trailing stop/break-even/partial close · MT4

About Bollinger Bands Breakout EA

The Bollinger Bands Breakout EA, documented at earnforex.com and Medium, is a simple, open-source Expert Advisor for MetaTrader 4 that trades a Bollinger Bands breakout strategy. Bollinger Bands are based on standard-deviation measurement, acting as volatility bands around price — a breakout beyond those bands signals a significant shift in trader positioning toward buying or selling.

The EA generates a buy signal when price closes above the upper band and a sell signal when price closes below the lower band (some breakout-style variants instead trade the opposite direction — a bounce-back trade when price breaks through then reverses). Traders can adjust Bollinger Band settings, lot size, stop-loss, and take-profit, with additional options for trailing stop-loss, break-even, and partial trade closing.

Key Features

✓ Free and open-source — full .mq4 code available to review or customise
✓ Flexible trade management — trailing stop, break-even, and partial closing all included
✓ Built on a well-understood, transparent volatility-based strategy
⚠ Susceptible to false breakouts — rigorous testing and adaptation to changing market conditions is important, per the developer's own guidance
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