The MasterMind
The MasterMind is a Martingale-based Expert Advisor that doubles the lot size after each losing trade, aiming to recover previous losses with a single winning trade. It enters positions based on simple directional signals and relies on the Martingale progression to achieve net profitability. The strategy carries significant risk of account blow-up during extended losing streaks.
Open the interactive view (equity curve, symbol switch)Key facts
Backtest results (H1, about 1 year)
Not backtested yet — this EA could not be converted automatically.
Blow-up risk: Elevated
- Increases the position size after losses (martingale)
High: stopped out in our backtest, or martingale/grid sizing without a stop loss. Elevated: martingale or grid sizing with a stop loss, or several positions at once without a stop loss. What the label means and what we found →
Strategy analysis
This EA implements a classic Martingale strategy where the core logic doubles the lot size after each consecutive losing trade, aiming to recover all accumulated losses with a single winning trade. Entry conditions are typically based on simple technical indicator signals such as moving average crossovers or momentum direction to determine whether to go long or short. Exit conditions consist of a fixed take-profit target that closes the position when the net profit reaches a predefined level; stop-loss is often absent or set very wide, relying on the Martingale progression to compensate for losses. Position sizing strictly follows the doubling sequence (1, 2, 4, 8, 16...) but lacks a maximum lot size cap and a maximum level limit. Money management does not incorporate a maximum drawdown protection mechanism, leaving the account exposed to exponentially growing risk during extended losing streaks that can rapidly deplete the entire account balance.
Strengths
- Simple and intuitive logic, easy to understand and deploy
- May perform well in short-term ranging markets where a single win recovers losses
- Small initial lot size provides controllable risk at the starting level
- Clean code structure with parameterized design for easy tuning
Weaknesses
- Martingale strategy is inherently high-risk; consecutive losses cause exponential lot size growth
- Lack of stop-loss protection means a strong unidirectional move can blow up the account
- No maximum drawdown limit or maximum Martingale level protection
- Extremely vulnerable in strong trending markets as counter-trend position sizing accelerates losses
- Negative long-term expected value, does not constitute a sustainable trading system
Possible improvements
- Add a maximum Martingale level limit and maximum lot size cap to prevent unlimited position scaling
- Implement a maximum drawdown protection mechanism that halts trading when drawdown exceeds a threshold
- Introduce a trend filter to avoid adding counter-trend positions during strong trending markets
Risk assessment
Overall risk: Dangerous
- Martingale doubling mechanism causes exponential risk growth during consecutive losses
- No stop-loss or excessively wide stop-loss can deplete the account in a single extreme move
- Absence of maximum level and maximum drawdown protection leaves account safety entirely dependent on market direction
- Counter-trend position scaling accelerates account blow-up during strong trending markets
Evaluation scores
Parameters
| Parameter | Default | Description |
|---|---|---|
InitialLot | 0.01 | Initial lot size, starting value for Martingale sequence |
Multiplier | 2.0 | Lot multiplier after loss, typically 2x |
TakeProfit | 10 | Take profit points (10 points) |
StopLoss | 0 | Stop loss in points, 0 to disable |
MaxOrders | 0 | Maximum order limit, 0=unlimited |
MagicNumber | 12345 | EA magic number for identifying this EA's orders |
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Backtests are historical simulations and do not guarantee future results. Not financial advice.