Gold Expert Advisor MT5: Free MQL5 Code + Full Backtest Guide
A free, complete MQL5 Expert Advisor for gold (XAUUSD) on MetaTrader 5 using trend-following logic with ATR-based filtering. Full source code included with installation guide.
Historical test results
Past performance is not indicative of future results. Backtest statistics are based on historical data and do not guarantee future profits. Trading involves significant risk of loss. This content is for educational purposes only and does not constitute financial advice.
Strategy logic
Entry conditions
Enter long when the 50-period EMA is above the 200-period EMA and price pulls back to the 50 EMA with RSI below 50. Enter short on opposite conditions. ATR must exceed a minimum threshold to confirm trending conditions.
Exit conditions
Take profit at 2x ATR from entry, stop loss at 1x ATR. Trailing stop activates after 1x ATR profit, locking in gains as price extends.
MQL5 Expert Advisor Code
//+------------------------------------------------------------------+
//| Gold Trend EA - XAUUSD H1 (Free Version) |
//| Pineify.app — generate custom EAs at pineify.app/mql5 |
//+------------------------------------------------------------------+
#property copyright "Pineify.app"
#property version "1.00"
input int MagicNumber = 234567;
input double RiskPercent = 1.0;
input int ATR_Period = 14;
input double ATR_SL_Mult = 1.0;
input double ATR_TP_Mult = 2.0;
int ema50Handle, ema200Handle, atrHandle, rsiHandle;
double ema50[], ema200[], atr[], rsi[];
int OnInit() {
ema50Handle = iMA(_Symbol, PERIOD_H1, 50, 0, MODE_EMA, PRICE_CLOSE);
ema200Handle = iMA(_Symbol, PERIOD_H1, 200, 0, MODE_EMA, PRICE_CLOSE);
atrHandle = iATR(_Symbol, PERIOD_H1, ATR_Period);
rsiHandle = iRSI(_Symbol, PERIOD_H1, 14, PRICE_CLOSE);
ArraySetAsSeries(ema50, true); ArraySetAsSeries(ema200, true);
ArraySetAsSeries(atr, true); ArraySetAsSeries(rsi, true);
return INIT_SUCCEEDED;
}
void OnDeinit(const int reason) {
IndicatorRelease(ema50Handle); IndicatorRelease(ema200Handle);
IndicatorRelease(atrHandle); IndicatorRelease(rsiHandle);
}
void OnTick() {
if (!IsNewBar(PERIOD_H1)) return;
CopyBuffer(ema50Handle, 0, 0, 3, ema50);
CopyBuffer(ema200Handle, 0, 0, 3, ema200);
CopyBuffer(atrHandle, 0, 0, 3, atr);
CopyBuffer(rsiHandle, 0, 0, 3, rsi);
if (CountPositions(MagicNumber) > 0) return;
double lots = CalcLots(atr[1] * ATR_SL_Mult);
bool upTrend = ema50[1] > ema200[1];
bool downTrend = ema50[1] < ema200[1];
double close1 = iClose(_Symbol, PERIOD_H1, 1);
if (upTrend && close1 <= ema50[1] && rsi[1] < 50)
OpenTrade(ORDER_TYPE_BUY, lots, atr[1] * ATR_SL_Mult, atr[1] * ATR_TP_Mult, MagicNumber);
else if (downTrend && close1 >= ema50[1] && rsi[1] > 50)
OpenTrade(ORDER_TYPE_SELL, lots, atr[1] * ATR_SL_Mult, atr[1] * ATR_TP_Mult, MagicNumber);
}
bool IsNewBar(ENUM_TIMEFRAMES tf) {
static datetime lastBar = 0;
datetime current = iTime(_Symbol, tf, 0);
if (current != lastBar) { lastBar = current; return true; }
return false;
}
double CalcLots(double slPoints) {
double tickVal = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_VALUE);
double tickSz = SymbolInfoDouble(_Symbol, SYMBOL_TRADE_TICK_SIZE);
double balance = AccountInfoDouble(ACCOUNT_BALANCE);
double risk = balance * RiskPercent / 100.0;
double lots = risk / (slPoints / tickSz * tickVal);
double minLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MIN);
double maxLot = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_MAX);
double step = SymbolInfoDouble(_Symbol, SYMBOL_VOLUME_STEP);
lots = MathFloor(lots / step) * step;
return MathMax(minLot, MathMin(maxLot, lots));
}
int CountPositions(int magic) {
int count = 0;
for (int i = PositionsTotal() - 1; i >= 0; i--) {
ulong ticket = PositionGetTicket(i);
if (PositionSelectByTicket(ticket) &&
PositionGetString(POSITION_SYMBOL) == _Symbol &&
(int)PositionGetInteger(POSITION_MAGIC) == magic) count++;
}
return count;
}
void OpenTrade(ENUM_ORDER_TYPE type, double lots, double sl, double tp, int magic) {
MqlTradeRequest req = {}; MqlTradeResult res = {};
req.action = TRADE_ACTION_DEAL; req.symbol = _Symbol; req.volume = lots;
req.type = type;
req.price = (type == ORDER_TYPE_BUY) ? SymbolInfoDouble(_Symbol, SYMBOL_ASK)
: SymbolInfoDouble(_Symbol, SYMBOL_BID);
req.sl = (type == ORDER_TYPE_BUY) ? req.price - sl : req.price + sl;
req.tp = (type == ORDER_TYPE_BUY) ? req.price + tp : req.price - tp;
req.magic = magic; req.comment = "Pineify Gold EA";
req.type_filling = ORDER_FILLING_IOC;
OrderSend(req, res);
}Copy this code into MetaEditor, save it in the MQL5/Experts folder, and compile with F7.
Generate a custom XAUUSD trend-following EA
Describe the ATR inputs, alert rules, visual style, or confirmation filter you want. Pineify generates editable MQL5 source code that you can inspect and compile in MetaEditor.
Pine Script vs MQL5: Same Strategy, Different Platforms
| Aspect | Pine Script (TradingView) | MQL5 (MetaTrader 5) |
|---|---|---|
| Execution | Series evaluated on chart updates | Event handlers with explicit buffers |
| Deployment | Runs in TradingView with alerts | Runs in the MT5 terminal or on a VPS |
| Broker access | Via TradingView broker integration | Direct broker connectivity |
| Backtesting | Strategy Tester for strategy scripts | Strategy Tester for Expert Advisors |
| Code complexity | Simpler, functional syntax | C++-like, more powerful |
The calculation can be implemented on either platform, but the runtime model and buffer APIs differ. Read the Pine Script Supertrend reference before porting logic between them.
Frequently Asked Questions
Related MQL5 pages
Risk and testing note
Past performance is not indicative of future results. Backtest statistics are based on historical data and do not guarantee future profits. Trading involves significant risk of loss. This content is for educational purposes only and does not constitute financial advice.