Trend_Catcher - MetaTrader 4 Expert | Forex Indicators Download - MT4/MT5 Resources

The EA uses three MAs (period 200, 50, 25 or other) to find trends and opens positions using the Parabolic SAR indicator. There is a martingale in EA trading, the lot size is calculated based on the stop loss as a percentage of the deposit.

The updated version adds some new features, allowing users to: 1) select a trading day, 2) open a position based on a reverse signal, 3) prohibit closing a position based on a reverse signal.

Enter the market

Buy: If the current price is above the Parabolic SAR point on the current candle, the previous candle's close was below the previous point on the Parabolic SAR, the moving average is above the first slow moving average, and the current price is above the second moving average of the other period.

Sell: If the current price is below the point of the Parabolic SAR indicator on the current candle, the closing price of the previous candle is above the previous point of the Parabolic SAR indicator, МА is below the first slow МА, and the current price is below the second МА on the other period.

The Expert Advisor closes orders based on opposite signals.

Stop Loss and Take Profit

If Auto_SL = true, stop loss is automatically calculated and set at the point of the Parabolic SAR indicator. You can apply the SL_koef coefficient, which multiplies the distance (in points) between the opening price and the Parabolic SAR indicator point. Example: If the distance from the order price to the Parabolic SAR point is 20 pips and SL_koef = 2, the stop loss for opening an order is 40 pips, and if SL_koef = 0.5, the stop loss for placing an order is 10 pips.

If Auto_SL = false, the stop loss will be fixed to the parameter SL (in points).

If Auto_TP = true, TakeProfit will be automatically calculated from StopLoss and multiplied by TP_koef. Example: If TP_koef = 2, it means that the take profit will be twice the stop loss.

If Auto_TP = false, take profit is fixed to TP (in points).

Lot size and martingale settings

Order lot size is calculated as a percentage of deposit based on risk settings and stop loss. Example: Account balance is 1,000 USD, stop loss is 100 pips, with risk = 1 (1% of deposit) we can lose 10 currency units, the lot size will be 0.01, with risk = 10 the lot size will be 0.1.

If Martin = true and the latest order is closed with a loss, the risk of the next trade will be increased by Koef times.

If Martin = false, the EA will calculate the lot size as a percentage of the current account balance.

Breakeven and Trailing Stop

If the profit of the position reaches the Profit_Level point, the stop loss will be set at the SL_Plus point of the profit.

Attachment download

📎 trend_catcher.mq4 (8.99 KB)

📎 trend_catcher_v2.mq4 (11.22 KB)

Source: MQL5 #13661

Trend_Catcher - MetaTrader 4 Tips for Experts Before Using

This page has been supplemented with structured instructions, focusing on the purpose of EA source code, MQL4/MQL5 platform compatibility, testing process and risk control. Before downloading or deploying, it is recommended to first determine whether it is consistent with your own variety, cycle and account environment.

Suitable for who to use

• Users who want to quickly screen EA source code and are willing to do simulation disk verification first.
• People who need to compare MT4/MT5 EAs, indicators, scripts or source code projects.
• Traders who wish to record backtests, parameters and risk boundaries before placing a trade.

Testing and risk control suggestions

• First verify the default parameters in the strategy tester or demo account, and then adjust the symbol, period, spread and trading period one by one.
• Scalping, grid, martin, and high-frequency strategies should focus on observing maximum drawdowns, consecutive losses, slippage, and trading frequency.
• It is not recommended to run any document directly on the real disk. At least observe the simulated disk performance for 2-4 weeks first.

FAQ

Can MT4 and MT5 be used interchangeably?
Usually cannot be used directly. EX4/MQ4 corresponds to MT4, EX5/MQ5 corresponds to MT5, and the source code needs to be compiled in the corresponding MetaEditor.

Is this resource guaranteed to be profitable?
cannot. EAs, indicators and scripts can only be used as trading tools, and the results depend on parameters, market environment, spreads, slippage and risk control.

What else can I continue to watch?
Forex EA download , foreign exchange indicator download , EA evaluation , MQL5 CodeBase .

English Search Notes

This page is also optimized for English search intent around Trend_Catcher - MetaTrader 4 Expert . Related search terms include: MQL4 source code, MQL5 source code. Test any Forex EA, Expert Advisor, MT4/MT5 indicator, script or MQL source code with historical data and a demo account before live trading.