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TTM Squeeze-Strategie

Die TTM Squeeze-Strategie sucht nach Perioden der Preisverdichtung, wenn Bollinger Bands innerhalb von Keltner Channels kontrahieren. Dieser "Squeeze" signalisiert eine potenzielle Volatilitätsexpansion. Während des Squeeze überwacht die Strategie einen linearen Regressions-Momentum-Oszillator und RSI, um die Richtung einzuschätzen. Wenn der Squeeze nachlässt und das Momentum dreht, werden Positionen in Richtung der Bewegung eingegangen.

Die Methode sucht nach explosiven Ausbrüchen aus ruhigen Ranges. Trades werden so gefiltert, dass Long-Setups steigende Momentum-Werte unterhalb von null mit RSI über 30 benötigen, während Short-Setups fallendes Momentum aus positivem Bereich mit RSI unter 70 erfordern. Ein optionaler Take-Profit-Parameter kann Trades bei einem vordefinierten Gewinn automatisch schließen.

Details

  • Einstiegskriterien:
    • Squeeze aus (Bollinger Bands außerhalb der Keltner Channels).
    • Long: Momentum < 0 und steigend, RSI > 30.
    • Short: Momentum > 0 und fallend, RSI < 70.
  • Long/Short: Beide Seiten.
  • Ausstiegskriterien:
    • Entgegengesetztes Signal oder Take-Profit, wenn aktiviert.
  • Stops: Standardmäßig keine, optionaler Take-Profit.
  • Standardwerte:
    • SqueezeLength = 20
    • RsiLength = 14
    • UseTP = False
    • TpPercent = 1.2
  • Filter:
    • Kategorie: Volatilitäts-Ausbruch
    • Richtung: Beide
    • Indikatoren: Bollinger Bands, Keltner Channels, RSI, Lineare Regression
    • Stops: Optional
    • Komplexität: Mittel
    • Zeitrahmen: Beliebig
    • Saisonalität: Nein
    • Neuronale Netze: Nein
    • Divergenz: Nein
    • Risikolevel: Mittel
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>
/// TTM Squeeze Strategy.
/// Detects volatility squeeze using BB width narrowing, then trades breakouts.
/// Uses RSI for momentum confirmation.
/// Buys when BB width expands from narrow and RSI > 50.
/// Sells when BB width expands from narrow and RSI less than 50.
/// </summary>
public class TtmSqueezeStrategy : Strategy
{
	private readonly StrategyParam<DataType> _candleType;
	private readonly StrategyParam<int> _bbLength;
	private readonly StrategyParam<int> _rsiLength;
	private readonly StrategyParam<int> _cooldownBars;

	private BollingerBands _bb;
	private RelativeStrengthIndex _rsi;
	private ExponentialMovingAverage _ema;

	private decimal _prevBbWidth;
	private decimal _minBbWidth;
	private int _narrowBars;
	private int _cooldownRemaining;

	public DataType CandleType
	{
		get => _candleType.Value;
		set => _candleType.Value = value;
	}

	public int BbLength
	{
		get => _bbLength.Value;
		set => _bbLength.Value = value;
	}

	public int RsiLength
	{
		get => _rsiLength.Value;
		set => _rsiLength.Value = value;
	}

	public int CooldownBars
	{
		get => _cooldownBars.Value;
		set => _cooldownBars.Value = value;
	}

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

		_bbLength = Param(nameof(BbLength), 20)
			.SetGreaterThanZero()
			.SetDisplay("BB Length", "Bollinger Bands period", "Indicators");

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

		_cooldownBars = Param(nameof(CooldownBars), 15)
			.SetDisplay("Cooldown Bars", "Bars to wait between trades", "Risk");
	}

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

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

		_bb = null;
		_rsi = null;
		_ema = null;
		_prevBbWidth = 0;
		_minBbWidth = decimal.MaxValue;
		_narrowBars = 0;
		_cooldownRemaining = 0;
	}

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

		_bb = new BollingerBands { Length = BbLength, Width = 2.0m };
		_rsi = new RelativeStrengthIndex { Length = RsiLength };
		_ema = new ExponentialMovingAverage { Length = BbLength };

		var subscription = SubscribeCandles(CandleType);
		subscription
			.BindEx(_bb, _rsi, _ema, OnProcess)
			.Start();

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

	private void OnProcess(ICandleMessage candle, IIndicatorValue bbValue, IIndicatorValue rsiValue, IIndicatorValue emaValue)
	{
		if (candle.State != CandleStates.Finished)
			return;

		if (!_bb.IsFormed || !_rsi.IsFormed || !_ema.IsFormed)
			return;

		if (bbValue.IsEmpty || rsiValue.IsEmpty || emaValue.IsEmpty)
			return;

		var bb = (BollingerBandsValue)bbValue;
		if (bb.UpBand is not decimal upper || bb.LowBand is not decimal lower || bb.MovingAverage is not decimal mid)
			return;

		var rsiVal = rsiValue.ToDecimal();
		var emaVal = emaValue.ToDecimal();

		// Calculate BB width as percentage
		var bbWidth = mid > 0 ? (upper - lower) / mid * 100 : 0;

		if (!IsFormedAndOnlineAndAllowTrading())
		{
			_prevBbWidth = bbWidth;
			_minBbWidth = Math.Min(_minBbWidth, bbWidth);
			return;
		}

		if (_cooldownRemaining > 0)
		{
			_cooldownRemaining--;
			_prevBbWidth = bbWidth;
			_minBbWidth = Math.Min(_minBbWidth, bbWidth);
			return;
		}

		if (_prevBbWidth == 0)
		{
			_prevBbWidth = bbWidth;
			_minBbWidth = bbWidth;
			return;
		}

		// Track narrow BB (squeeze)
		if (bbWidth <= _minBbWidth * 1.1m)
		{
			_narrowBars++;
			_minBbWidth = Math.Min(_minBbWidth, bbWidth);
		}
		else if (bbWidth > _prevBbWidth && _narrowBars >= 3)
		{
			// BB is expanding after squeeze - breakout
			if (rsiVal > 50 && candle.ClosePrice > emaVal && Position <= 0)
			{
				if (Position < 0)
					BuyMarket(Math.Abs(Position));
				BuyMarket(Volume);
				_cooldownRemaining = CooldownBars;
				_narrowBars = 0;
				_minBbWidth = bbWidth;
			}
			else if (rsiVal < 50 && candle.ClosePrice < emaVal && Position >= 0)
			{
				if (Position > 0)
					SellMarket(Math.Abs(Position));
				SellMarket(Volume);
				_cooldownRemaining = CooldownBars;
				_narrowBars = 0;
				_minBbWidth = bbWidth;
			}
			else
			{
				_narrowBars = 0;
				_minBbWidth = bbWidth;
			}
		}
		else
		{
			_narrowBars = 0;
			_minBbWidth = bbWidth;
		}

		// Exit long: price falls below lower BB
		if (Position > 0 && candle.ClosePrice < lower)
		{
			SellMarket(Math.Abs(Position));
			_cooldownRemaining = CooldownBars;
		}
		// Exit short: price rises above upper BB
		else if (Position < 0 && candle.ClosePrice > upper)
		{
			BuyMarket(Math.Abs(Position));
			_cooldownRemaining = CooldownBars;
		}

		_prevBbWidth = bbWidth;
	}
}