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MultiSignal Confluence EA v1.13 - Add dynamic lot sizing

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New Features:
- InpUseRiskPercent: Enable risk-based lot sizing
- InpRiskPercent: Risk % per trade (default 1.0%)
- CalculateLotSize(): Dynamic lot calculation based on:
  * Account balance
  * Risk percentage
  * Stop loss distance
  * Symbol tick value/size

Lot size formula: Risk$ / (SL_Points * TickValue/TickSize)

Automatically adjusts lot size as account grows/shrinks.
Falls back to fixed InpLotSize if UseRiskPercent=false.
This commit is contained in:
Garfield Heron
2026-03-25 22:43:25 -04:00
parent 15cd0153e3
commit 2f8c24a5d2
1 changed files with 40 additions and 4 deletions
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44
MultiSignal_Confluence_EA.mq5
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@@ -5,7 +5,7 @@
//+------------------------------------------------------------------+
#property copyright "Copyright 2025, Abbey Road Tech"
#property link "https://www.abbeyroadtech.com"
#property version "1.12"
#property version "1.13"
#property strict
#include <Trade\Trade.mqh>
@@ -17,7 +17,9 @@ input double InpMinStrength = 0.90; // Min signal strength (0.0-1.0) -
input bool InpRequireAllAgree = true; // All signals must agree
input group "=== Risk Management ==="
input double InpLotSize = 0.01; // Lot size
input double InpLotSize = 0.01; // Fixed Lot size (if UseRiskPercent=false)
input bool InpUseRiskPercent = true; // Use risk % for dynamic lot sizing
input double InpRiskPercent = 1.0; // Risk % per trade (1.0 = 1% of account)
input int InpStopLoss = 100; // Stop Loss in points
input int InpTakeProfit = 200; // Take Profit in points
input bool InpUseTrailingStop = true; // Use trailing stop
@@ -386,6 +388,40 @@ void CheckSignals(int &buyCount, int &sellCount, string &sources)
}
}
//+------------------------------------------------------------------+
//| Calculate dynamic lot size based on risk % |
//+------------------------------------------------------------------+
double CalculateLotSize(double slPoints)
{
if(!InpUseRiskPercent) return InpLotSize;
double accountBalance = AccountInfoDouble(ACCOUNT_BALANCE);
double tickSize = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
double tickValue = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_VALUE);
double lotStep = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_STEP);
double minLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MIN);
double maxLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MAX);
if(tickSize <= 0 || slPoints <= 0) return InpLotSize;
// Calculate risk amount
double riskAmount = accountBalance * InpRiskPercent / 100.0;
// Calculate lot size: RiskAmount / (SL_Points * TickValue / TickSize)
double lots = riskAmount / (slPoints * tickValue / tickSize);
// Normalize to lot step
lots = MathFloor(lots / lotStep) * lotStep;
// Apply min/max limits
lots = MathMax(minLot, MathMin(maxLot, lots));
Print("Risk Lot Calc: Balance=", accountBalance, " Risk%=", InpRiskPercent,
" SL=", slPoints, " Lots=", lots);
return lots;
}
//+------------------------------------------------------------------+
//| Validate SL/TP Prices |
//+------------------------------------------------------------------+
@@ -486,7 +522,7 @@ void OpenBuyPosition(double strength, string sources)
return;
}
double lotSize = InpLotSize;
double lotSize = CalculateLotSize(InpStopLoss);
double sl = ask - InpStopLoss * point;
double tp = ask + InpTakeProfit * point;
@@ -530,7 +566,7 @@ void OpenSellPosition(double strength, string sources)
return;
}
double lotSize = InpLotSize;
double lotSize = CalculateLotSize(InpStopLoss);
double sl = bid + InpStopLoss * point;
double tp = bid - InpTakeProfit * point;