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JS Sistem 2 Strategy

Overview

JS Sistem 2 is a trend-following system originally written for MetaTrader 5. The StockSharp port keeps the multi-indicator confirmation block from the expert advisor and trades on closed candles of the selected timeframe. Orders are sized with a fixed volume and can optionally be blocked if the connected portfolio balance falls below a configurable threshold. Risk is controlled through hard stop-loss and take-profit distances expressed in pips together with an adaptive trailing stop that follows candle shadows.

Indicators and Filters

  • EMA(55), EMA(89), EMA(144) – form a directional filter. Long setups require the fast EMA above the medium and the medium above the slow line, while the distance between the fast and slow curves must remain below MinDifferencePips.
  • MACD histogram (OsMA) – uses fast, slow, and signal EMA lengths identical to the MQL version. A long trade requires the histogram to be positive, a short trade requires it to be negative.
  • Relative Vigor Index (RVI) – computed with period RviPeriod and smoothed by an additional simple moving average with RviSignalLength. Long trades need the RVI to stay above its signal line and above the RviMax threshold; short trades need the inverse.
  • Highest/Lowest swing envelopes – track the highest high and lowest low over VolatilityPeriod candles. These values drive the trailing stop logic and replicate the shadow trailing mode from the original expert advisor.

Trade Logic

  1. The strategy processes only finished candles from the configured CandleType.
  2. Before evaluating entries it updates the trailing stop for existing positions using the latest swing extremes and then checks whether stop-loss or take-profit levels were hit during the candle.
  3. Long entry conditions:
    • Portfolio balance is above MinBalance.
    • EMA55 > EMA89 > EMA144 and the difference between EMA55 and EMA144 is below MinDifferencePips (converted into price units through the instrument pip size).
    • MACD histogram (macdLine) is greater than zero.
    • RVI is above its signal line and the signal line is at or above RviMax.
    • No existing long position (Position <= 0). When a short position exists it is flattened before opening the long.
  4. Short entry conditions mirror the long rules with inverted comparisons and use the RviMin threshold.
  5. Upon entry the strategy stores the candle close price as the reference, places virtual stop-loss and take-profit levels by shifting that price by StopLossPips and TakeProfitPips, and resets the trailing state.

Exit and Trailing Management

  • Hard stop-loss / take-profit: Whenever the candle range overlaps the stored stop or target level the strategy closes the entire position immediately.
  • Trailing stop: When TrailingEnabled is true, the strategy attempts to move the stop in the direction of profit. For longs the stop is raised to the lowest low of the last VolatilityPeriod candles once that low sits above both the entry price and the previous stop by at least TrailingIndentPips. Shorts follow the symmetric rule using the highest high. This reproduces the “shadow trailing” of the MQL advisor and keeps stops from tightening prematurely.
  • Balance protection: If the current portfolio value drops below MinBalance the strategy refrains from submitting new orders but still manages open trades and trailing stops.

Parameters

Parameter Description Default
MinBalance Minimum portfolio balance required for new entries. 100
Volume Order volume submitted with each trade. 1
StopLossPips Stop-loss distance measured in pips. Set to 0 to disable. 35
TakeProfitPips Take-profit distance measured in pips. Set to 0 to disable. 40
MinDifferencePips Maximum allowed spread between the fast and slow EMA in pips. 28
VolatilityPeriod Number of candles used to compute swing highs and lows for the trailing stop. 15
TrailingEnabled Enables or disables the trailing stop logic. true
TrailingIndentPips Minimum gap between price, entry, and stop when updating the trailing stop. 1
MaFastPeriod Period for the fast EMA. 55
MaMediumPeriod Period for the medium EMA. 89
MaSlowPeriod Period for the slow EMA. 144
OsmaFastPeriod Fast EMA length for the MACD histogram. 13
OsmaSlowPeriod Slow EMA length for the MACD histogram. 55
OsmaSignalPeriod Signal smoothing length for the MACD histogram. 21
RviPeriod Period of the Relative Vigor Index. 44
RviSignalLength Length of the SMA applied to the RVI to obtain its signal line. 4
RviMax Upper bound that the RVI signal must reach before long entries are allowed. 0.04
RviMin Lower bound that the RVI signal must reach before short entries are allowed. -0.04
CandleType Timeframe of the candles used for all calculations. 5-minute candles

Implementation Notes

  • Pip distance is derived from the instrument’s price step. Instruments quoted with 3 or 5 decimal places use a pip equal to ten price steps, matching the original MQL logic.
  • Stop and target handling happens inside the strategy loop because StockSharp does not automatically submit server-side orders for them in this template.
  • The strategy calls StartProtection() during startup so the base class can monitor unexpected disconnections and pending positions.
using System;
using System.Linq;
using System.Collections.Generic;

using Ecng.Common;
using Ecng.Collections;
using Ecng.Serialization;

using StockSharp.Algo.Indicators;
using StockSharp.Algo.Strategies;
using StockSharp.BusinessEntities;
using StockSharp.Messages;

namespace StockSharp.Samples.Strategies;

/// <summary>
/// JS Sistem 2 trend-following strategy converted from MetaTrader 5.
/// Combines exponential moving averages, MACD histogram (OsMA), and Relative Vigor Index filters.
/// Includes trailing stop based on recent candle shadows and configurable stop/target distances.
/// </summary>
public class JsSistem2Strategy : Strategy
{
	private readonly StrategyParam<decimal> _minBalance;
	private readonly StrategyParam<int> _stopLossPips;
	private readonly StrategyParam<int> _takeProfitPips;
	private readonly StrategyParam<int> _minDifferencePips;
	private readonly StrategyParam<int> _volatilityPeriod;
	private readonly StrategyParam<bool> _trailingEnabled;
	private readonly StrategyParam<int> _trailingIndentPips;
	private readonly StrategyParam<int> _maFastPeriod;
	private readonly StrategyParam<int> _maMediumPeriod;
	private readonly StrategyParam<int> _maSlowPeriod;
	private readonly StrategyParam<int> _osmaFastPeriod;
	private readonly StrategyParam<int> _osmaSlowPeriod;
	private readonly StrategyParam<int> _osmaSignalPeriod;
	private readonly StrategyParam<int> _rviPeriod;
	private readonly StrategyParam<int> _rviSignalLength;
	private readonly StrategyParam<decimal> _rviMax;
	private readonly StrategyParam<decimal> _rviMin;
	private readonly StrategyParam<DataType> _candleType;

	private ExponentialMovingAverage _emaFast = null!;
	private ExponentialMovingAverage _emaMedium = null!;
	private ExponentialMovingAverage _emaSlow = null!;
	private MovingAverageConvergenceDivergence _macd = null!;
	private Highest _highest = null!;
	private Lowest _lowest = null!;
	private RelativeVigorIndex _rvi = null!;

	private decimal? _stopPrice;
	private decimal? _takePrice;
	private decimal _entryPrice;

	/// <summary>
	/// Minimum account balance required to allow new entries.
	/// </summary>
	public decimal MinBalance
	{
		get => _minBalance.Value;
		set => _minBalance.Value = value;
	}


	/// <summary>
	/// Stop-loss distance in pips.
	/// </summary>
	public int StopLossPips
	{
		get => _stopLossPips.Value;
		set => _stopLossPips.Value = value;
	}

	/// <summary>
	/// Take-profit distance in pips.
	/// </summary>
	public int TakeProfitPips
	{
		get => _takeProfitPips.Value;
		set => _takeProfitPips.Value = value;
	}

	/// <summary>
	/// Maximum allowed spread between fast and slow EMA in pips.
	/// </summary>
	public int MinDifferencePips
	{
		get => _minDifferencePips.Value;
		set => _minDifferencePips.Value = value;
	}

	/// <summary>
	/// Lookback for trailing stop based on candle shadows.
	/// </summary>
	public int VolatilityPeriod
	{
		get => _volatilityPeriod.Value;
		set => _volatilityPeriod.Value = value;
	}

	/// <summary>
	/// Enables trailing stop management.
	/// </summary>
	public bool TrailingEnabled
	{
		get => _trailingEnabled.Value;
		set => _trailingEnabled.Value = value;
	}

	/// <summary>
	/// Offset applied when updating trailing stop levels.
	/// </summary>
	public int TrailingIndentPips
	{
		get => _trailingIndentPips.Value;
		set => _trailingIndentPips.Value = value;
	}

	/// <summary>
	/// Fast EMA period.
	/// </summary>
	public int MaFastPeriod
	{
		get => _maFastPeriod.Value;
		set => _maFastPeriod.Value = value;
	}

	/// <summary>
	/// Medium EMA period.
	/// </summary>
	public int MaMediumPeriod
	{
		get => _maMediumPeriod.Value;
		set => _maMediumPeriod.Value = value;
	}

	/// <summary>
	/// Slow EMA period.
	/// </summary>
	public int MaSlowPeriod
	{
		get => _maSlowPeriod.Value;
		set => _maSlowPeriod.Value = value;
	}

	/// <summary>
	/// Fast EMA length for the MACD/OsMA filter.
	/// </summary>
	public int OsmaFastPeriod
	{
		get => _osmaFastPeriod.Value;
		set => _osmaFastPeriod.Value = value;
	}

	/// <summary>
	/// Slow EMA length for the MACD/OsMA filter.
	/// </summary>
	public int OsmaSlowPeriod
	{
		get => _osmaSlowPeriod.Value;
		set => _osmaSlowPeriod.Value = value;
	}

	/// <summary>
	/// Signal length for the MACD/OsMA filter.
	/// </summary>
	public int OsmaSignalPeriod
	{
		get => _osmaSignalPeriod.Value;
		set => _osmaSignalPeriod.Value = value;
	}

	/// <summary>
	/// Relative Vigor Index period.
	/// </summary>
	public int RviPeriod
	{
		get => _rviPeriod.Value;
		set => _rviPeriod.Value = value;
	}

	/// <summary>
	/// Smoothing length for the RVI signal line.
	/// </summary>
	public int RviSignalLength
	{
		get => _rviSignalLength.Value;
		set => _rviSignalLength.Value = value;
	}

	/// <summary>
	/// Upper threshold for the RVI signal line.
	/// </summary>
	public decimal RviMax
	{
		get => _rviMax.Value;
		set => _rviMax.Value = value;
	}

	/// <summary>
	/// Lower threshold for the RVI signal line.
	/// </summary>
	public decimal RviMin
	{
		get => _rviMin.Value;
		set => _rviMin.Value = value;
	}

	/// <summary>
	/// Candle type used by the strategy.
	/// </summary>
	public DataType CandleType
	{
		get => _candleType.Value;
		set => _candleType.Value = value;
	}

	/// <summary>
	/// Initializes a new instance of the <see cref="JsSistem2Strategy"/> class.
	/// </summary>
	public JsSistem2Strategy()
	{
		_minBalance = Param(nameof(MinBalance), 100m)
			.SetDisplay("Min Balance", "Minimum balance to allow trading", "Risk")
			;


		_stopLossPips = Param(nameof(StopLossPips), 200)
			.SetDisplay("Stop Loss", "Stop-loss distance in pips", "Risk")
			;

		_takeProfitPips = Param(nameof(TakeProfitPips), 300)
			.SetDisplay("Take Profit", "Take-profit distance in pips", "Risk")
			;

		_minDifferencePips = Param(nameof(MinDifferencePips), 5000)
			.SetGreaterThanZero()
			.SetDisplay("EMA Spread", "Maximum fast-slow EMA spread", "Filters")
			;

		_volatilityPeriod = Param(nameof(VolatilityPeriod), 15)
			.SetGreaterThanZero()
			.SetDisplay("Trailing Range", "Number of candles for trailing", "Risk")
			;

		_trailingEnabled = Param(nameof(TrailingEnabled), true)
			.SetDisplay("Trailing", "Enable trailing stop", "Risk");

		_trailingIndentPips = Param(nameof(TrailingIndentPips), 1)
			.SetGreaterThanZero()
			.SetDisplay("Trailing Offset", "Indent from candle shadows", "Risk")
			;

		_maFastPeriod = Param(nameof(MaFastPeriod), 12)
			.SetGreaterThanZero()
			.SetDisplay("Fast EMA", "Fast EMA period", "Indicators")
			;

		_maMediumPeriod = Param(nameof(MaMediumPeriod), 26)
			.SetGreaterThanZero()
			.SetDisplay("Medium EMA", "Medium EMA period", "Indicators")
			;

		_maSlowPeriod = Param(nameof(MaSlowPeriod), 50)
			.SetGreaterThanZero()
			.SetDisplay("Slow EMA", "Slow EMA period", "Indicators")
			;

		_osmaFastPeriod = Param(nameof(OsmaFastPeriod), 12)
			.SetGreaterThanZero()
			.SetDisplay("OsMA Fast", "Fast EMA for MACD", "Indicators")
			;

		_osmaSlowPeriod = Param(nameof(OsmaSlowPeriod), 26)
			.SetGreaterThanZero()
			.SetDisplay("OsMA Slow", "Slow EMA for MACD", "Indicators")
			;

		_osmaSignalPeriod = Param(nameof(OsmaSignalPeriod), 9)
			.SetGreaterThanZero()
			.SetDisplay("OsMA Signal", "Signal period for MACD", "Indicators")
			;

		_rviPeriod = Param(nameof(RviPeriod), 10)
			.SetGreaterThanZero()
			.SetDisplay("RVI Period", "Relative Vigor Index period", "Indicators")
			;

		_rviSignalLength = Param(nameof(RviSignalLength), 4)
			.SetGreaterThanZero()
			.SetDisplay("RVI Signal", "Smoothing for RVI signal", "Indicators")
			;

		_rviMax = Param(nameof(RviMax), 0.02m)
			.SetDisplay("RVI Max", "Upper threshold for RVI signal", "Filters")
			;

		_rviMin = Param(nameof(RviMin), -0.02m)
			.SetDisplay("RVI Min", "Lower threshold for RVI signal", "Filters")
			;

		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(4).TimeFrame())
			.SetDisplay("Candle Type", "Candles used for calculations", "General");
	}

	/// <inheritdoc />
	public override IEnumerable<(Security sec, DataType dt)> GetWorkingSecurities()
	{
		return [(Security, CandleType)];
	}

	/// <inheritdoc />
	protected override void OnReseted()
	{
		base.OnReseted();

		_stopPrice = null;
		_takePrice = null;
		_entryPrice = 0m;
	}

	/// <inheritdoc />
	protected override void OnStarted2(DateTime time)
	{
		base.OnStarted2(time);

		_emaFast = new ExponentialMovingAverage { Length = MaFastPeriod };
		_emaMedium = new ExponentialMovingAverage { Length = MaMediumPeriod };
		_emaSlow = new ExponentialMovingAverage { Length = MaSlowPeriod };
		_macd = new MovingAverageConvergenceDivergence
		{
			ShortMa = { Length = OsmaFastPeriod },
			LongMa = { Length = OsmaSlowPeriod },
		};
		_highest = new Highest { Length = VolatilityPeriod };
		_lowest = new Lowest { Length = VolatilityPeriod };
		_rvi = new RelativeVigorIndex();
		_rvi.Average.Length = RviPeriod;
		_rvi.Signal.Length = RviSignalLength;

		var subscription = SubscribeCandles(CandleType);
		subscription
			.Bind(_emaFast, _emaMedium, _emaSlow, _macd, _highest, _lowest, ProcessCandle)
			.Start();
	}

	private void ProcessCandle(ICandleMessage candle, decimal emaFast, decimal emaMedium, decimal emaSlow, decimal macdLine, decimal highestValue, decimal lowestValue)
	{
		if (candle.State != CandleStates.Finished)
			return;

		if (!_emaFast.IsFormed || !_emaMedium.IsFormed || !_emaSlow.IsFormed || !_macd.IsFormed || !_highest.IsFormed || !_lowest.IsFormed)
			return;

		var step = CalculatePipSize();
		if (step == 0m)
		{
			step = Security.PriceStep ?? 0m;
		}
		if (step == 0m)
			step = 1m;

		var stopDistance = StopLossPips > 0 ? StopLossPips * step : 0m;
		var takeDistance = TakeProfitPips > 0 ? TakeProfitPips * step : 0m;
		var minDifference = MinDifferencePips * step;
		var indent = TrailingIndentPips * step;

		UpdateTrailingStops(candle, highestValue, lowestValue, indent);
		HandleStopsAndTargets(candle);

		var canTrade = (Portfolio?.CurrentValue ?? decimal.MaxValue) >= MinBalance;

		var emaOrderLong = emaFast > emaMedium && emaMedium > emaSlow;
		var emaOrderShort = emaFast < emaMedium && emaMedium < emaSlow;
		var emaSpreadLong = Math.Abs(emaFast - emaSlow) < minDifference;
		var emaSpreadShort = Math.Abs(emaSlow - emaFast) < minDifference;

		var longCondition = canTrade && emaOrderLong && emaSpreadLong && macdLine > 0m;
		var shortCondition = canTrade && emaOrderShort && emaSpreadShort && macdLine < 0m;

		if (longCondition && Position <= 0)
		{
			if (Position < 0)
			{
				BuyMarket(Math.Abs(Position));
				ResetOrders();
			}

			if (Volume > 0m)
			{
				BuyMarket(Volume);
				_entryPrice = candle.ClosePrice;
				_stopPrice = stopDistance > 0m ? _entryPrice - stopDistance : null;
				_takePrice = takeDistance > 0m ? _entryPrice + takeDistance : null;
			}
		}
		else if (shortCondition && Position >= 0)
		{
			if (Position > 0)
			{
				SellMarket(Math.Abs(Position));
				ResetOrders();
			}

			if (Volume > 0m)
			{
				SellMarket(Volume);
				_entryPrice = candle.ClosePrice;
				_stopPrice = stopDistance > 0m ? _entryPrice + stopDistance : null;
				_takePrice = takeDistance > 0m ? _entryPrice - takeDistance : null;
			}
		}
	}

	private void UpdateTrailingStops(ICandleMessage candle, decimal highestValue, decimal lowestValue, decimal indent)
	{
		if (!TrailingEnabled)
			return;

		if (Position > 0)
		{
			var newStop = lowestValue;
			if (newStop > 0m && candle.ClosePrice - newStop > indent && newStop - _entryPrice > indent)
			{
				if (!_stopPrice.HasValue || newStop - _stopPrice.Value > indent)
				{
					_stopPrice = newStop;
				}
			}
		}
		else if (Position < 0)
		{
			var newStop = highestValue;
			if (newStop > 0m && newStop - candle.ClosePrice > indent && _entryPrice - newStop > indent)
			{
				if (!_stopPrice.HasValue || _stopPrice.Value - newStop > indent)
				{
					_stopPrice = newStop;
				}
			}
		}
	}

	private void HandleStopsAndTargets(ICandleMessage candle)
	{
		if (Position > 0)
		{
			if (_stopPrice.HasValue && candle.LowPrice <= _stopPrice.Value)
			{
				SellMarket(Math.Abs(Position));
				ResetOrders();
				return;
			}

			if (_takePrice.HasValue && candle.HighPrice >= _takePrice.Value)
			{
				SellMarket(Math.Abs(Position));
				ResetOrders();
			}
		}
		else if (Position < 0)
		{
			if (_stopPrice.HasValue && candle.HighPrice >= _stopPrice.Value)
			{
				BuyMarket(Math.Abs(Position));
				ResetOrders();
				return;
			}

			if (_takePrice.HasValue && candle.LowPrice <= _takePrice.Value)
			{
				BuyMarket(Math.Abs(Position));
				ResetOrders();
			}
		}
	}

	private void ResetOrders()
	{
		_stopPrice = null;
		_takePrice = null;
		_entryPrice = 0m;
	}

	private decimal CalculatePipSize()
	{
		var security = Security;
		if (security is null)
			return 0m;

		var step = security.PriceStep ?? 0m;
		if (step == 0m)
			return 0m;

		var decimals = security.Decimals;
		return decimals == 3 || decimals == 5 ? step * 10m : step;
	}
}