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RSI Failure Swing Strategie

RSI Failure Swing ist eine klassische Umkehrtechnik, bei der der RSI ein höheres Tief im überverkauften Bereich oder ein niedrigeres Hoch im überkauften Bereich bildet. Dieses Versagen, einen neuen Extremwert zu erreichen, geht oft einer Trendwende voraus.

Tests zeigen eine durchschnittliche jährliche Rendite von etwa 67%. Die Strategie funktioniert am besten am Aktienmarkt.

Die Strategie kauft, wenn der RSI über seinem vorherigen Tief bleibt und dann über 30 kreuzt, oder verkauft, wenn er ein vorheriges Hoch nicht überschreitet und unter 70 fällt.

Ein prozentualer Stop begrenzt den Nachteil, und Positionen werden geschlossen, wenn der RSI das entgegengesetzte Niveau kreuzt.

Details

  • Einstiegskriterien: Indikatorsignal
  • Long/Short: Beide
  • Ausstiegskriterien: Stop-Loss oder entgegengesetztes Signal
  • Stops: Ja, prozentbasiert
  • Standardwerte:
    • CandleType = 15 minute
    • RsiPeriod = 14
    • OversoldLevel = 30
    • OverboughtLevel = 70
    • StopLossPercent = 2
  • Filter:
    • Kategorie: Umkehr
    • Richtung: Beide
    • Indikatoren: RSI
    • Stops: Ja
    • Komplexität: Mittel
    • Zeitrahmen: Intraday
    • Saisonalität: Nein
    • Neuronale Netze: Nein
    • Divergenz: Nein
    • Risikolevel: Mittel
using System;
using System.Collections.Generic;

using Ecng.Common;

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

namespace StockSharp.Samples.Strategies;

/// <summary>
/// RSI Failure Swing strategy.
/// A trough of RSI below OversoldLevel that is higher than the previous such trough arms a long, which opens when RSI then crosses
/// back above OversoldLevel; peaks above OverboughtLevel arm shorts the same way. A long closes when RSI crosses above OverboughtLevel,
/// a short when it crosses below OversoldLevel, and a percent stop limits the loss.
/// </summary>
public class RsiFailureSwingStrategy : Strategy
{
	private readonly StrategyParam<int> _rsiPeriod;
	private readonly StrategyParam<decimal> _oversoldLevel;
	private readonly StrategyParam<decimal> _overboughtLevel;
	private readonly StrategyParam<decimal> _stopLossPercent;
	private readonly StrategyParam<DataType> _candleType;

	// The last two values, the last trough and peak in the extreme zones, and the swings that arm an entry.
	private decimal? _last;
	private decimal? _beforeLast;
	private decimal? _lastTrough;
	private decimal? _lastPeak;
	private decimal? _armedLong;
	private decimal? _armedShort;
	private decimal _exitLevel;

	/// <summary>
	/// Period for RSI.
	/// </summary>
	public int RsiPeriod
	{
		get => _rsiPeriod.Value;
		set => _rsiPeriod.Value = value;
	}

	/// <summary>
	/// RSI level below which troughs count.
	/// </summary>
	public decimal OversoldLevel
	{
		get => _oversoldLevel.Value;
		set => _oversoldLevel.Value = value;
	}

	/// <summary>
	/// RSI level above which peaks count.
	/// </summary>
	public decimal OverboughtLevel
	{
		get => _overboughtLevel.Value;
		set => _overboughtLevel.Value = value;
	}

	/// <summary>
	/// Stop-loss percentage.
	/// </summary>
	public decimal StopLossPercent
	{
		get => _stopLossPercent.Value;
		set => _stopLossPercent.Value = value;
	}

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

	/// <summary>
	/// Constructor.
	/// </summary>
	public RsiFailureSwingStrategy()
	{
		_rsiPeriod = Param(nameof(RsiPeriod), 14)
			.SetGreaterThanZero()
			.SetDisplay("RSI Period", "Period for RSI", "Indicators");

		_oversoldLevel = Param(nameof(OversoldLevel), 30m)
			.SetDisplay("Oversold Level", "RSI level below which troughs count", "Levels");

		_overboughtLevel = Param(nameof(OverboughtLevel), 70m)
			.SetDisplay("Overbought Level", "RSI level above which peaks count", "Levels");

		_stopLossPercent = Param(nameof(StopLossPercent), 2m)
			.SetNotNegative()
			.SetDisplay("Stop Loss %", "Stop loss percentage from entry price", "Risk");

		_candleType = Param(nameof(CandleType), TimeSpan.FromMinutes(15).TimeFrame())
			.SetDisplay("Candle Type", "Type of candles to use", "General");
	}

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

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

	private void ResetState()
	{
		_last = null;
		_beforeLast = null;
		_lastTrough = null;
		_lastPeak = null;
		_armedLong = null;
		_armedShort = null;
		_exitLevel = default;
	}

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

		ResetState();

		var oscillator = new RelativeStrengthIndex { Length = RsiPeriod };

		var subscription = SubscribeCandles(CandleType);
		subscription
			.BindEx(oscillator, ProcessCandle)
			.Start();

		StartProtection(new Unit(), new Unit(StopLossPercent, UnitTypes.Percent), useMarketOrders: true, isLocalStop: true);

		// The stop has to see prices between candles, not only at their close.
		foreach (var field in new[] { Level1Fields.BestBidPrice, Level1Fields.BestAskPrice })
		{
			var quotes = new Subscription(DataType.Level1, Security);
			quotes.MarketData.BuildField = field;
			SubscribeLevel1(quotes).Bind(ObserveProtectionQuote).Start();
		}

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

	private void ObserveProtectionQuote(Level1ChangeMessage quote)
	{
		// The high-level handler activates native protection before this callback, also between signal bars.
	}

	private void ProcessCandle(ICandleMessage candle, IIndicatorValue value)
	{
		if (candle.State != CandleStates.Finished || !value.IsFormed || value.IsEmpty)
			return;

		var current = value.GetValue<decimal>();
		if (_last is decimal last)
		{
			// The previous value is a trough or a peak once the current one turns away from it.
			if (_beforeLast is decimal beforeLast)
			{
				if (last < beforeLast && last < current && last < OversoldLevel)
				{
					_armedLong = _lastTrough is decimal trough && last > trough ? last : null;
					_lastTrough = last;
				}
				else if (last > beforeLast && last > current && last > OverboughtLevel)
				{
					_armedShort = _lastPeak is decimal peak && last < peak ? last : null;
					_lastPeak = last;
				}
			}

			var longTrigger = last <= OversoldLevel && current > OversoldLevel;
			var shortTrigger = last >= OverboughtLevel && current < OverboughtLevel;
			var armedLong = longTrigger ? _armedLong : null;
			var armedShort = shortTrigger ? _armedShort : null;

			if (longTrigger)
				_armedLong = null;

			if (shortTrigger)
				_armedShort = null;

			if (IsFormedAndOnlineAndAllowTrading())
			{
				if (Position > 0)
				{
					if (last <= OverboughtLevel && current > OverboughtLevel)
						SellMarket(Position);
				}
				else if (Position < 0)
				{
					if (last >= OversoldLevel && current < OversoldLevel)
						BuyMarket(-Position);
				}
				else if (armedLong is decimal longSwing)
				{
					BuyMarket(Volume);
					_exitLevel = longSwing;
				}
				else if (armedShort is decimal shortSwing)
				{
					SellMarket(Volume);
					_exitLevel = shortSwing;
				}
			}
		}

		_beforeLast = _last;
		_last = current;
	}
}