Optimize Your Trading with EMAplusWPRv1_1 for MetaTrader 4

Current Version: http://codebase.mql4.com/en/code/10413

Are you a trader looking to enhance your strategy? Let me introduce you to EMAplusWPRv1_1, an Expert Advisor (EA) designed for MetaTrader 4. This EA utilizes the Exponential Moving Average (EMA) trend along with buy/sell signals derived from Williams %R.

I aimed to create an EA that works effectively with a starting equity of €1,000 while minimizing drawdown. Your feedback is always welcome!

Optimized for EURUSD on a 5-minute chart

I've ironed out some bugs and tweaked the position sizing. You can now set how much of your account you wish to risk with each trade. Plus, I've included a simple trailing stop feature that you can disable by setting trailingStop to 0.

Disclaimer: Use this EA at your own risk. I’m not liable for any losses you may incur. Be sure to adjust, test, and optimize it to suit your trading needs.

Inputs:

externdouble takeProfit      = 200;      // Take Profitexterndouble maxStopLoss     = 50;       // Stop Lossexterndouble maxLots         = 10;       // Max lots per positionexterndouble maxContracts    = 2;        // Max open positions, 2 is optimal for smoother equityexterndouble EMA             = 144;      // EMA to determine trendexternint    iWPRPeriod      = 46;       // Williams' %R for buy/sell signals
       int    iWPRretracement = 30;       // Retracement for next tradeexterndouble trailingStop    = 50;       // Trailing stop, set to 0 to disableexternint    risk            = 2;        // % of account risk per tradeexterndouble magicNumber     = 13131;  

Strategy Tester Report

For optimal position sizing, adjust the maxLots and determine what percentage of your account you'd like to risk on each trade.

Here's the position sizing code I use:

minAllowedLot  =  MarketInfo(Symbol(), MODE_MINLOT);    // IBFX= 0.10
lotStep        =  MarketInfo(Symbol(), MODE_LOTSTEP);   // IBFX= 0.01
maxAllowedLot  =  MarketInfo(Symbol(), MODE_MAXLOT);   // IBFX=50.00

balance = AccountBalance();  
ilo   =  ((balance * risk / 100) / maxStopLoss);

lots  =  NormalizeDouble(ilo, 0) * lotStep;

if (lots < minAllowedLot)  lots = minAllowedLot;
if (lots > maxLots)        lots = maxLots;
if (lots > maxAllowedLot)  lots = maxAllowedLot;

Strategy Tester Report