Risk Management Fundamentals
Profitable traders don't just find good entries — they manage risk obsessively. This is how you survive long enough to profit.
Core Concepts
Risk Per Trade
The percentage of your account you risk on each trade
Risk Amount = Account Balance × Risk PercentagePosition Sizing
Calculating lot size based on stop loss distance
Lots = Risk Amount ÷ (Stop Loss Pips × Pip Value)Maximum Drawdown
The largest peak-to-trough decline in account equity
Max DD Tolerance = Risk Per Trade × Expected Losing StreakRisk-Reward Ratio
The relationship between potential profit and potential loss
R:R = Take Profit Distance ÷ Stop Loss DistancePosition Sizing Code
- 1Determine account risk percentage (e.g., 2%)
- 2Calculate risk amount in currency (Balance × %)
- 3Measure stop loss distance in pips
- 4Get pip value for your lot size and pair
- 5Calculate lots: Risk Amount ÷ (SL Pips × Pip Value)
// Position sizing calculation
double CalculateLotSize(double riskPercent, double slPips) {
double balance = AccountInfoDouble(ACCOUNT_BALANCE);
double riskAmount = balance * (riskPercent / 100);
double tickSize = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
double tickValue = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_VALUE);
double pipValue = tickValue / tickSize * _Point * 10;
double lots = riskAmount / (slPips * pipValue);
double minLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MIN);
double maxLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MAX);
double lotStep = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_STEP);
lots = MathFloor(lots / lotStep) * lotStep;
lots = MathMax(minLot, MathMin(maxLot, lots));
return lots;
}Drawdown Response Levels
| Drawdown | Action | Notes |
|---|---|---|
| 10% | Normal operation | Expected for most strategies |
| 15% | Review mode | Check if strategy performing as expected |
| 20% | Reduce size by 50% | Limit further damage while analyzing |
| 25% | Pause trading | Full strategy review required |
| 30%+ | Stop EA | Strategy may be broken or market changed |
Essential Risk Rules
Never risk more than 2% per trade as a beginner
Allows 25+ consecutive losses before 50% drawdown
Total open risk should not exceed 6%
Limits exposure if multiple trades go wrong
Daily loss limit of 5%
Prevents catastrophic single-day losses
Weekly loss limit of 10%
Forces review before significant damage
Always use stop losses
Unlimited loss potential without them
Never move stop loss further away
Increases risk beyond planned amount
Risk Management Checklist
Common Mistakes
Using fixed lot sizes regardless of stop loss
Why: 20 pip stop and 50 pip stop have very different risk with same lots.
Fix: Always calculate position size based on stop loss distance.
Risking 5-10% per trade
Why: Only takes 10-20 losses to blow the account. Losing streaks happen.
Fix: Start at 1%. Only increase after proven consistent profitability.
No maximum drawdown rule
Why: Strategy keeps trading through dysfunction. Losses compound.
Fix: Define drawdown levels with specific actions. Automate if possible.
Ignoring correlation risk
Why: 5 trades on correlated pairs = 5x intended risk if all lose.
Fix: Count total correlated exposure as single risk unit.
Widening stops during trades
Why: Turning a small loss into a large one. Emotional decision.
Fix: Set stop before entry. Never modify away from price.
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