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Estrategia de Cruce de Stochastic RSI

Este método convierte el clásico Relative Strength Index en un Stochastic RSI, luego suaviza el resultado en líneas %K y %D. Cuando %K cruza %D dentro de zonas cuidadosamente elegidas, el movimiento implica un cambio de corto plazo en el momentum. El algoritmo solo opera cuando una estructura EMA de tres capas confirma la dirección de la tendencia más amplia, ayudando a filtrar las falsas señales.

Una vez que aparece un cruce, el precio de cierre también debe situarse por encima o por debajo de la EMA rápida dependiendo de la señal. Esto protege contra actuar en oscilaciones que ocurren contra la tendencia prevaleciente y mantiene la atención en los momentos cuando el momentum se alinea con la dirección. Los traders pueden ajustar los períodos de suavizado y la longitud del RSI para afinar cómo reacciona el sistema a los picos de volatilidad.

El riesgo se referencia a través de una lectura de Average True Range. Los multiplicadores del ATR actual proponen stops de pérdida y objetivos de ganancia, proporcionando un nivel dinámico que se expande en mercados volátiles y se contrae cuando la actividad se calma. Aunque el script no envía automáticamente órdenes protectoras, estos niveles calculados ayudan a la gestión manual o pueden vincularse a módulos de riesgo adicionales.

Detalles

  • Criterios de entrada:
    • Largo: %K cruza por encima de %D, %K en [10,60], EMAs alineadas alcistamente, precio por encima de EMA1.
    • Corto: %K cruza por debajo de %D, %K en [40,95], EMAs alineadas bajistamente, precio por debajo de EMA1.
  • Largo/Corto: Ambos lados.
  • Criterios de salida: Ninguno integrado.
  • Stops: Múltiplos de ATR sugeridos pero no colocados automáticamente.
  • Valores predeterminados:
    • SmoothK = 3, SmoothD = 3.
    • RsiLength = 14, StochLength = 14.
    • Ema1Length = 20, Ema2Length = 50, Ema3Length = 100.
    • AtrLength = 14, AtrLossMultiplier = 1.5, AtrProfitMultiplier = 2.0.
  • Filtros:
    • Categoría: Momentum
    • Dirección: Ambos
    • Indicadores: Múltiples
    • Stops: Opcional
    • Complejidad: Moderado
    • Marco temporal: Intradía
    • Estacionalidad: No
    • Redes neuronales: No
    • Divergencia: Sí
    • Nivel de riesgo: Medio
namespace StockSharp.Samples.Strategies;

using System;
using System.Collections.Generic;

using Ecng.Common;

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

/// <summary>
/// Stoch RSI Crossover Strategy.
/// RSI is turned into a Stochastic RSI over StochLength bars and smoothed into %K (SmoothK) and %D (SmoothD).
/// A long opens when %K crosses above %D with %K in [10, 60], EMA1 > EMA2 > EMA3 and the close above EMA1.
/// A short opens when %K crosses below %D with %K in [40, 95], EMA1 &lt; EMA2 &lt; EMA3 and the close below EMA1.
/// There is no built-in exit: an opposite signal reverses the position. The ATR multipliers only describe suggested levels.
/// </summary>
public class StochRsiCrossoverStrategy : Strategy
{
	private readonly StrategyParam<int> _smoothK;
	private readonly StrategyParam<int> _smoothD;
	private readonly StrategyParam<int> _rsiLength;
	private readonly StrategyParam<int> _stochLength;
	private readonly StrategyParam<int> _ema1Length;
	private readonly StrategyParam<int> _ema2Length;
	private readonly StrategyParam<int> _ema3Length;
	private readonly StrategyParam<int> _atrLength;
	private readonly StrategyParam<decimal> _atrLossMultiplier;
	private readonly StrategyParam<decimal> _atrProfitMultiplier;
	private readonly StrategyParam<DataType> _candleType;

	private Highest _rsiHigh;
	private Lowest _rsiLow;
	private SimpleMovingAverage _kMa;
	private SimpleMovingAverage _dMa;

	private decimal? _prevK;
	private decimal? _prevD;

	/// <summary>
	/// %K smoothing.
	/// </summary>
	public int SmoothK
	{
		get => _smoothK.Value;
		set => _smoothK.Value = value;
	}

	/// <summary>
	/// %D smoothing.
	/// </summary>
	public int SmoothD
	{
		get => _smoothD.Value;
		set => _smoothD.Value = value;
	}

	/// <summary>
	/// RSI period.
	/// </summary>
	public int RsiLength
	{
		get => _rsiLength.Value;
		set => _rsiLength.Value = value;
	}

	/// <summary>
	/// Stochastic period applied to RSI.
	/// </summary>
	public int StochLength
	{
		get => _stochLength.Value;
		set => _stochLength.Value = value;
	}

	/// <summary>
	/// Fast EMA period.
	/// </summary>
	public int Ema1Length
	{
		get => _ema1Length.Value;
		set => _ema1Length.Value = value;
	}

	/// <summary>
	/// Medium EMA period.
	/// </summary>
	public int Ema2Length
	{
		get => _ema2Length.Value;
		set => _ema2Length.Value = value;
	}

	/// <summary>
	/// Slow EMA period.
	/// </summary>
	public int Ema3Length
	{
		get => _ema3Length.Value;
		set => _ema3Length.Value = value;
	}

	/// <summary>
	/// ATR period of the suggested levels.
	/// </summary>
	public int AtrLength
	{
		get => _atrLength.Value;
		set => _atrLength.Value = value;
	}

	/// <summary>
	/// ATR multiplier of the suggested stop loss.
	/// </summary>
	public decimal AtrLossMultiplier
	{
		get => _atrLossMultiplier.Value;
		set => _atrLossMultiplier.Value = value;
	}

	/// <summary>
	/// ATR multiplier of the suggested profit target.
	/// </summary>
	public decimal AtrProfitMultiplier
	{
		get => _atrProfitMultiplier.Value;
		set => _atrProfitMultiplier.Value = value;
	}

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

	/// <summary>
	/// Constructor.
	/// </summary>
	public StochRsiCrossoverStrategy()
	{
		_smoothK = Param(nameof(SmoothK), 3)
			.SetGreaterThanZero()
			.SetDisplay("Smooth K", "%K smoothing", "Stoch RSI");

		_smoothD = Param(nameof(SmoothD), 3)
			.SetGreaterThanZero()
			.SetDisplay("Smooth D", "%D smoothing", "Stoch RSI");

		_rsiLength = Param(nameof(RsiLength), 14)
			.SetGreaterThanZero()
			.SetDisplay("RSI Length", "RSI period", "Stoch RSI");

		_stochLength = Param(nameof(StochLength), 14)
			.SetGreaterThanZero()
			.SetDisplay("Stoch Length", "Stochastic period applied to RSI", "Stoch RSI");

		_ema1Length = Param(nameof(Ema1Length), 20)
			.SetGreaterThanZero()
			.SetDisplay("EMA1 Length", "Fast EMA period", "Trend");

		_ema2Length = Param(nameof(Ema2Length), 50)
			.SetGreaterThanZero()
			.SetDisplay("EMA2 Length", "Medium EMA period", "Trend");

		_ema3Length = Param(nameof(Ema3Length), 100)
			.SetGreaterThanZero()
			.SetDisplay("EMA3 Length", "Slow EMA period", "Trend");

		_atrLength = Param(nameof(AtrLength), 14)
			.SetGreaterThanZero()
			.SetDisplay("ATR Length", "ATR period of the suggested levels", "Risk");

		_atrLossMultiplier = Param(nameof(AtrLossMultiplier), 1.5m)
			.SetGreaterThanZero()
			.SetDisplay("ATR Loss Multiplier", "ATR multiplier of the suggested stop loss", "Risk");

		_atrProfitMultiplier = Param(nameof(AtrProfitMultiplier), 2.0m)
			.SetGreaterThanZero()
			.SetDisplay("ATR Profit Multiplier", "ATR multiplier of the suggested profit target", "Risk");

		_candleType = Param(nameof(CandleType), TimeSpan.FromMinutes(30).TimeFrame())
			.SetDisplay("Candle Type", "Type of candles to use", "General");
	}

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

	/// <inheritdoc />
	protected override void OnReseted()
	{
		base.OnReseted();
		_prevK = null;
		_prevD = null;
	}

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

		_prevK = null;
		_prevD = null;

		var rsi = new RelativeStrengthIndex { Length = RsiLength };
		var ema1 = new ExponentialMovingAverage { Length = Ema1Length };
		var ema2 = new ExponentialMovingAverage { Length = Ema2Length };
		var ema3 = new ExponentialMovingAverage { Length = Ema3Length };

		_rsiHigh = new Highest { Length = StochLength };
		_rsiLow = new Lowest { Length = StochLength };
		_kMa = new SimpleMovingAverage { Length = SmoothK };
		_dMa = new SimpleMovingAverage { Length = SmoothD };

		var subscription = SubscribeCandles(CandleType);
		subscription
			.BindEx(rsi, ema1, ema2, ema3, ProcessCandle)
			.Start();

		var area = CreateChartArea();
		if (area != null)
		{
			DrawCandles(area, subscription);
			DrawIndicator(area, ema1);
			DrawIndicator(area, ema2);
			DrawIndicator(area, ema3);
			DrawOwnTrades(area);
		}
	}

	private void ProcessCandle(ICandleMessage candle, IIndicatorValue rsiValue, IIndicatorValue ema1Value, IIndicatorValue ema2Value, IIndicatorValue ema3Value)
	{
		if (candle.State != CandleStates.Finished)
			return;

		if (!rsiValue.IsFormed)
			return;

		var rsi = rsiValue.GetValue<decimal>();
		var high = _rsiHigh.Process(rsi, candle.OpenTime, true).ToDecimal();
		var low = _rsiLow.Process(rsi, candle.OpenTime, true).ToDecimal();

		if (!_rsiHigh.IsFormed || !_rsiLow.IsFormed)
			return;

		var stoch = high - low > 0m ? 100m * (rsi - low) / (high - low) : 0m;
		var kValue = _kMa.Process(stoch, candle.OpenTime, true);
		if (!_kMa.IsFormed)
			return;

		var k = kValue.ToDecimal();
		var dValue = _dMa.Process(k, candle.OpenTime, true);
		if (!_dMa.IsFormed)
			return;

		var d = dValue.ToDecimal();

		var prevK = _prevK;
		var prevD = _prevD;
		_prevK = k;
		_prevD = d;

		if (prevK is not decimal pk || prevD is not decimal pd)
			return;

		if (!ema1Value.IsFormed || !ema2Value.IsFormed || !ema3Value.IsFormed)
			return;

		if (!IsFormedAndOnlineAndAllowTrading())
			return;

		var ema1 = ema1Value.GetValue<decimal>();
		var ema2 = ema2Value.GetValue<decimal>();
		var ema3 = ema3Value.GetValue<decimal>();
		var close = candle.ClosePrice;

		var crossUp = pk <= pd && k > d;
		var crossDown = pk >= pd && k < d;

		var longSignal = crossUp && k >= 10m && k <= 60m && ema1 > ema2 && ema2 > ema3 && close > ema1;
		var shortSignal = crossDown && k >= 40m && k <= 95m && ema1 < ema2 && ema2 < ema3 && close < ema1;

		if (longSignal && Position <= 0)
			BuyMarket(Volume + Math.Abs(Position));
		else if (shortSignal && Position >= 0)
			SellMarket(Volume + Math.Abs(Position));
	}
}