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Exp Blau CSI Strategy

This strategy is a C# conversion of the MetaTrader 5 expert adviser Exp_BlauCSI. It trades on the Blau Candle Stochastic Index (CSI) calculated on a selected candle series. The strategy can react either to zero-line breakdowns or to direction changes in the indicator and supports configurable stop-loss and take-profit levels measured in price steps.

Trading logic

The Blau CSI compares a momentum component with the high-low range of recent candles. Both parts are smoothed three times using a selected moving average type.

  • Breakdown mode – opens a long position when the indicator crosses below zero and closes any shorts while the previous value was positive. Opens a short position on a cross above zero and closes any longs while the previous value was negative.
  • Twist mode – opens a long position when the indicator turns upward (value rises compared to the previous bar after declining). Opens a short position when the indicator turns downward. The previous bar direction is always used to close existing positions for the opposite side.

Signals are evaluated on a configurable historical bar (Signal Bar) to ensure confirmation on fully closed candles.

Parameters

Parameter Description
Entry Mode Selects Breakdown or Twist logic.
Smoothing Method Moving average type used inside the Blau CSI (Simple, Exponential, Smoothed, LinearWeighted, or Jurik).
Momentum Length Number of bars used to compute the momentum and range components.
First/Second/Third Smoothing Depth of the three smoothing stages applied to momentum and range.
Smoothing Phase Phase parameter for Jurik smoothing (ignored by other methods).
Momentum Price / Reference Price Applied price constants for the leading and lagging momentum values (close, open, high, low, median, typical, weighted, simple, quarter, trend-following, or Demark).
Signal Bar Offset (in bars) used when evaluating the Blau CSI buffer. Default 1 means the previous closed bar.
Stop Loss (pts) Stop-loss distance in price steps (0 disables).
Take Profit (pts) Take-profit distance in price steps (0 disables).
Allow Long/Short Entries Enable or disable opening positions for each direction.
Allow Long/Short Exits Enable or disable exit signals for existing positions.
Candle Type Data type for the subscription (defaults to 4-hour time frame).
Start Date / End Date Date filters for trading activity.
Order Volume Market order volume.

Risk management

When a new position is opened the strategy calculates stop-loss and take-profit levels using the instrument PriceStep. If the instrument does not provide a step, stops are disabled automatically. Trailing is not performed; each position keeps the initial protective levels until it is closed by a signal or by reaching a target.

Usage notes

  1. Attach the strategy to a security that provides candle data for the selected Candle Type.
  2. Choose the indicator mode and smoothing parameters according to your trading plan.
  3. Ensure the instrument has a valid PriceStep when using stop-loss or take-profit distances.
  4. Optionally restrict trading to a time range using Start Date and End Date.

Differences compared to the original MT5 version

  • The implementation uses StockSharp indicators and C# strategy APIs instead of MetaTrader trading functions.
  • Lot size management is simplified: order volume is taken directly from the Order Volume parameter.
  • Only the smoothing methods provided by StockSharp are supported (Simple, Exponential, Smoothed, LinearWeighted, Jurik). Unsupported MT5 modes fall back to Exponential smoothing.
  • Trade direction toggles and stop management remain compatible with the original behavior.

The strategy is ready for backtesting within StockSharp Designer, Shell, Runner, or any custom StockSharp host application.

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>
/// Blau Candle Stochastic Index strategy converted from MetaTrader 5.
/// </summary>
public class ExpBlauCsiStrategy : Strategy
{
	/// <summary>
	/// Available entry modes for the Blau CSI strategy.
	/// </summary>
	public enum BlauCsiEntryModes
	{
		/// <summary>
		/// Use zero level breakdowns as signals.
		/// </summary>
		Breakdown,

		/// <summary>
		/// Use direction changes (twists) as signals.
		/// </summary>
		Twist
	}

	/// <summary>
	/// Applied price constants supported by the Blau CSI indicator.
	/// </summary>
	public enum BlauCsiAppliedPrices
	{
		/// <summary>
		/// Close price.
		/// </summary>
		Close = 1,

		/// <summary>
		/// Open price.
		/// </summary>
		Open = 2,

		/// <summary>
		/// High price.
		/// </summary>
		High = 3,

		/// <summary>
		/// Low price.
		/// </summary>
		Low = 4,

		/// <summary>
		/// Median price = (High + Low) / 2.
		/// </summary>
		Median = 5,

		/// <summary>
		/// Typical price = (High + Low + Close) / 3.
		/// </summary>
		Typical = 6,

		/// <summary>
		/// Weighted close price = (2 * Close + High + Low) / 4.
		/// </summary>
		Weighted = 7,

		/// <summary>
		/// Average of open and close.
		/// </summary>
		Simple = 8,

		/// <summary>
		/// Average of open, high, low, and close.
		/// </summary>
		Quarter = 9,

		/// <summary>
		/// Trend-following price variant 0.
		/// </summary>
		TrendFollow0 = 10,

		/// <summary>
		/// Trend-following price variant 1.
		/// </summary>
		TrendFollow1 = 11,

		/// <summary>
		/// Demark price.
		/// </summary>
		Demark = 12
	}

	/// <summary>
	/// Smoothing methods available for Blau CSI.
	/// </summary>
	public enum BlauCsiSmoothMethods
	{
		/// <summary>
		/// Simple moving average.
		/// </summary>
		Simple,

		/// <summary>
		/// Exponential moving average.
		/// </summary>
		Exponential,

		/// <summary>
		/// Smoothed moving average (RMA).
		/// </summary>
		Smoothed,

		/// <summary>
		/// Linear weighted moving average.
		/// </summary>
		LinearWeighted,

		/// <summary>
		/// Jurik moving average.
		/// </summary>
		Jurik
	}

	private readonly StrategyParam<BlauCsiEntryModes> _entryMode;
	private readonly StrategyParam<BlauCsiSmoothMethods> _smoothMethod;
	private readonly StrategyParam<int> _momentumLength;
	private readonly StrategyParam<int> _firstSmoothLength;
	private readonly StrategyParam<int> _secondSmoothLength;
	private readonly StrategyParam<int> _thirdSmoothLength;
	private readonly StrategyParam<int> _smoothingPhase;
	private readonly StrategyParam<BlauCsiAppliedPrices> _firstPrice;
	private readonly StrategyParam<BlauCsiAppliedPrices> _secondPrice;
	private readonly StrategyParam<int> _signalBar;
	private readonly StrategyParam<int> _stopLossPoints;
	private readonly StrategyParam<int> _takeProfitPoints;
	private readonly StrategyParam<bool> _allowLongEntries;
	private readonly StrategyParam<bool> _allowShortEntries;
	private readonly StrategyParam<bool> _allowLongExits;
	private readonly StrategyParam<bool> _allowShortExits;
	private readonly StrategyParam<DataType> _candleType;
	private readonly StrategyParam<DateTimeOffset> _startDate;
	private readonly StrategyParam<DateTimeOffset> _endDate;

	private BlauCsiIndicator _blauCsi = null!;
	private readonly List<decimal> _indicatorValues = new();
	private decimal? _stopPrice;
	private decimal? _takePrice;

	/// <summary>
	/// Initializes a new instance of the <see cref="ExpBlauCsiStrategy"/> class.
	/// </summary>
	public ExpBlauCsiStrategy()
	{
		_entryMode = Param(nameof(EntryMode), BlauCsiEntryModes.Breakdown)
			.SetDisplay("Entry Mode", "Zero cross or direction change logic", "Parameters");

		_smoothMethod = Param(nameof(SmoothingMethod), BlauCsiSmoothMethods.Exponential)
			.SetDisplay("Smoothing Method", "Moving average type used inside Blau CSI", "Indicator");

		_momentumLength = Param(nameof(MomentumLength), 1)
			.SetGreaterThanZero()
			.SetDisplay("Momentum Length", "Number of bars for momentum calculation", "Indicator")
			
			.SetOptimize(1, 20, 1);

		_firstSmoothLength = Param(nameof(FirstSmoothingLength), 10)
			.SetGreaterThanZero()
			.SetDisplay("First Smoothing", "Depth of first smoothing stage", "Indicator")

			.SetOptimize(5, 60, 5);

		_secondSmoothLength = Param(nameof(SecondSmoothingLength), 3)
			.SetGreaterThanZero()
			.SetDisplay("Second Smoothing", "Depth of second smoothing stage", "Indicator")

			.SetOptimize(2, 30, 1);

		_thirdSmoothLength = Param(nameof(ThirdSmoothingLength), 2)
			.SetGreaterThanZero()
			.SetDisplay("Third Smoothing", "Depth of third smoothing stage", "Indicator")

			.SetOptimize(2, 20, 1);

		_smoothingPhase = Param(nameof(SmoothingPhase), 15)
			.SetDisplay("Smoothing Phase", "Phase parameter used by Jurik smoothing", "Indicator");

		_firstPrice = Param(nameof(FirstPrice), BlauCsiAppliedPrices.Close)
			.SetDisplay("Momentum Price", "Price constant for the leading value", "Indicator");

		_secondPrice = Param(nameof(SecondPrice), BlauCsiAppliedPrices.Open)
			.SetDisplay("Reference Price", "Price constant for the lagging value", "Indicator");

		_signalBar = Param(nameof(SignalBar), 1)
			.SetNotNegative()
			.SetDisplay("Signal Bar", "Offset in bars used to confirm a signal", "Trading");

		_stopLossPoints = Param(nameof(StopLossPoints), 1000)
			.SetNotNegative()
			.SetDisplay("Stop Loss (pts)", "Stop loss distance measured in price steps", "Risk");

		_takeProfitPoints = Param(nameof(TakeProfitPoints), 2000)
			.SetNotNegative()
			.SetDisplay("Take Profit (pts)", "Take profit distance measured in price steps", "Risk");

		_allowLongEntries = Param(nameof(AllowLongEntries), true)
			.SetDisplay("Allow Long Entries", "Enable opening long positions", "Trading");

		_allowShortEntries = Param(nameof(AllowShortEntries), true)
			.SetDisplay("Allow Short Entries", "Enable opening short positions", "Trading");

		_allowLongExits = Param(nameof(AllowLongExits), true)
			.SetDisplay("Allow Long Exits", "Enable closing long positions", "Trading");

		_allowShortExits = Param(nameof(AllowShortExits), true)
			.SetDisplay("Allow Short Exits", "Enable closing short positions", "Trading");

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

		_startDate = Param(nameof(StartDate), new DateTimeOffset(2018, 1, 1, 0, 0, 0, TimeSpan.Zero))
			.SetDisplay("Start Date", "Backtest start date", "General");

		_endDate = Param(nameof(EndDate), new DateTimeOffset(2099, 1, 1, 0, 0, 0, TimeSpan.Zero))
			.SetDisplay("End Date", "Backtest end date", "General");

		Volume = 1m;
	}

	/// <summary>
	/// Entry mode determining how Blau CSI generates signals.
	/// </summary>
	public BlauCsiEntryModes EntryMode
	{
		get => _entryMode.Value;
		set => _entryMode.Value = value;
	}

	/// <summary>
	/// Smoothing method used inside Blau CSI calculation.
	/// </summary>
	public BlauCsiSmoothMethods SmoothingMethod
	{
		get => _smoothMethod.Value;
		set => _smoothMethod.Value = value;
	}

	/// <summary>
	/// Momentum length controlling the lookback for price difference and range.
	/// </summary>
	public int MomentumLength
	{
		get => _momentumLength.Value;
		set => _momentumLength.Value = value;
	}

	/// <summary>
	/// First smoothing depth.
	/// </summary>
	public int FirstSmoothingLength
	{
		get => _firstSmoothLength.Value;
		set => _firstSmoothLength.Value = value;
	}

	/// <summary>
	/// Second smoothing depth.
	/// </summary>
	public int SecondSmoothingLength
	{
		get => _secondSmoothLength.Value;
		set => _secondSmoothLength.Value = value;
	}

	/// <summary>
	/// Third smoothing depth.
	/// </summary>
	public int ThirdSmoothingLength
	{
		get => _thirdSmoothLength.Value;
		set => _thirdSmoothLength.Value = value;
	}

	/// <summary>
	/// Phase parameter used by Jurik smoothing.
	/// </summary>
	public int SmoothingPhase
	{
		get => _smoothingPhase.Value;
		set => _smoothingPhase.Value = value;
	}

	/// <summary>
	/// Price constant for the leading momentum value.
	/// </summary>
	public ExpBlauCsiStrategy.BlauCsiAppliedPrices FirstPrice
	{
		get => _firstPrice.Value;
		set => _firstPrice.Value = value;
	}

	/// <summary>
	/// Price constant for the lagging momentum value.
	/// </summary>
	public ExpBlauCsiStrategy.BlauCsiAppliedPrices SecondPrice
	{
		get => _secondPrice.Value;
		set => _secondPrice.Value = value;
	}

	/// <summary>
	/// Offset in bars used when checking the Blau CSI buffer.
	/// </summary>
	public int SignalBar
	{
		get => _signalBar.Value;
		set => _signalBar.Value = value;
	}

	/// <summary>
	/// Stop loss size expressed in price steps.
	/// </summary>
	public int StopLossPoints
	{
		get => _stopLossPoints.Value;
		set => _stopLossPoints.Value = value;
	}

	/// <summary>
	/// Take profit size expressed in price steps.
	/// </summary>
	public int TakeProfitPoints
	{
		get => _takeProfitPoints.Value;
		set => _takeProfitPoints.Value = value;
	}

	/// <summary>
	/// Toggle controlling long entries.
	/// </summary>
	public bool AllowLongEntries
	{
		get => _allowLongEntries.Value;
		set => _allowLongEntries.Value = value;
	}

	/// <summary>
	/// Toggle controlling short entries.
	/// </summary>
	public bool AllowShortEntries
	{
		get => _allowShortEntries.Value;
		set => _allowShortEntries.Value = value;
	}

	/// <summary>
	/// Toggle controlling long exits.
	/// </summary>
	public bool AllowLongExits
	{
		get => _allowLongExits.Value;
		set => _allowLongExits.Value = value;
	}

	/// <summary>
	/// Toggle controlling short exits.
	/// </summary>
	public bool AllowShortExits
	{
		get => _allowShortExits.Value;
		set => _allowShortExits.Value = value;
	}

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

	/// <summary>
	/// Start date filter for trading.
	/// </summary>
	public DateTimeOffset StartDate
	{
		get => _startDate.Value;
		set => _startDate.Value = value;
	}

	/// <summary>
	/// End date filter for trading.
	/// </summary>
	public DateTimeOffset EndDate
	{
		get => _endDate.Value;
		set => _endDate.Value = value;
	}

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

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

		_indicatorValues.Clear();
		_stopPrice = null;
		_takePrice = null;
	}

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

		_blauCsi = new BlauCsiIndicator
		{
			SmoothMethod = SmoothingMethod,
			MomentumLength = MomentumLength,
			FirstSmoothingLength = FirstSmoothingLength,
			SecondSmoothingLength = SecondSmoothingLength,
			ThirdSmoothingLength = ThirdSmoothingLength,
			Phase = SmoothingPhase,
			FirstPrice = FirstPrice,
			SecondPrice = SecondPrice
		};

		var subscription = SubscribeCandles(CandleType);
		subscription.Bind(ProcessCandle).Start();

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

	private void ProcessCandle(ICandleMessage candle)
	{
		if (candle.State != CandleStates.Finished)
			return;

		var result = _blauCsi.Process(new CandleIndicatorValue(_blauCsi, candle));
		var indicatorValue = result.IsEmpty ? 0m : result.GetValue<decimal>();

		if (HandleStops(candle))
			return;

		var time = candle.OpenTime;
		var inRange = time >= StartDate && time <= EndDate;

		if (!inRange)
		{
			if (Position > 0)
			{
				SellMarket();
				ResetTargets();
			}
			else if (Position < 0)
			{
				BuyMarket();
				ResetTargets();
			}

			return;
		}

		StoreIndicatorValue(indicatorValue);

		var (openLong, openShort, closeLong, closeShort) = EvaluateSignals();

		if (closeLong && AllowLongExits && Position > 0)
		{
			SellMarket();
			ResetTargets();
		}

		if (closeShort && AllowShortExits && Position < 0)
		{
			BuyMarket();
			ResetTargets();
		}

		if (openLong && AllowLongEntries && Position <= 0)
		{
			BuyMarket();
			SetTargets(candle.ClosePrice, true);
		}
		else if (openShort && AllowShortEntries && Position >= 0)
		{
			SellMarket();
			SetTargets(candle.ClosePrice, false);
		}
	}

	private (bool openLong, bool openShort, bool closeLong, bool closeShort) EvaluateSignals()
	{
		var required = EntryMode == BlauCsiEntryModes.Twist ? 3 : 2;
		var count = _indicatorValues.Count;

		if (SignalBar < 0)
			return (false, false, false, false);

		var signalIndex = count - 1 - SignalBar;
		if (signalIndex < required - 1)
			return (false, false, false, false);

		var openLong = false;
		var openShort = false;
		var closeLong = false;
		var closeShort = false;

		if (EntryMode == BlauCsiEntryModes.Breakdown)
		{
			var current = _indicatorValues[signalIndex];
			var previous = _indicatorValues[signalIndex - 1];

			if (previous > 0m)
			{
				if (current <= 0m)
					openLong = true;

				closeShort = true;
			}

			if (previous < 0m)
			{
				if (current >= 0m)
					openShort = true;

				closeLong = true;
			}
		}
		else
		{
			var current = _indicatorValues[signalIndex];
			var previous = _indicatorValues[signalIndex - 1];
			var older = _indicatorValues[signalIndex - 2];

			if (previous < older)
			{
				if (current >= previous)
					openLong = true;

				closeShort = true;
			}

			if (previous > older)
			{
				if (current <= previous)
					openShort = true;

				closeLong = true;
			}
		}

		return (openLong, openShort, closeLong, closeShort);
	}

	private bool HandleStops(ICandleMessage candle)
	{
		var triggered = false;

		if (Position > 0)
		{
			if (_stopPrice != null && candle.LowPrice <= _stopPrice)
			{
				SellMarket();
				triggered = true;
			}
			else if (_takePrice != null && candle.HighPrice >= _takePrice)
			{
				SellMarket();
				triggered = true;
			}
		}
		else if (Position < 0)
		{
			if (_stopPrice != null && candle.HighPrice >= _stopPrice)
			{
				BuyMarket();
				triggered = true;
			}
			else if (_takePrice != null && candle.LowPrice <= _takePrice)
			{
				BuyMarket();
				triggered = true;
			}
		}

		if (triggered)
			ResetTargets();

		return triggered;
	}

	private void SetTargets(decimal entryPrice, bool isLong)
	{
		var step = Security?.PriceStep ?? 0m;

		if (step <= 0m)
		{
			_stopPrice = null;
			_takePrice = null;
			return;
		}

		_stopPrice = StopLossPoints > 0
			? isLong ? entryPrice - StopLossPoints * step : entryPrice + StopLossPoints * step
			: null;

		_takePrice = TakeProfitPoints > 0
			? isLong ? entryPrice + TakeProfitPoints * step : entryPrice - TakeProfitPoints * step
			: null;
	}

	private void ResetTargets()
	{
		_stopPrice = null;
		_takePrice = null;
	}

	private void StoreIndicatorValue(decimal value)
	{
		_indicatorValues.Add(value);

		var keep = SignalBar + (EntryMode == BlauCsiEntryModes.Twist ? 3 : 2) + 5;
		if (keep < 10)
			keep = 10;

		if (_indicatorValues.Count > keep)
			_indicatorValues.RemoveRange(0, _indicatorValues.Count - keep);
	}
}

/// <summary>
/// Blau Candle Stochastic Index implementation.
/// </summary>
public class BlauCsiIndicator : BaseIndicator
{
	private readonly List<ICandleMessage> _window = new();
	private IIndicator _momentumStage1;
	private IIndicator _momentumStage2;
	private IIndicator _momentumStage3;
	private IIndicator _rangeStage1;
	private IIndicator _rangeStage2;
	private IIndicator _rangeStage3;

	/// <summary>
	/// Selected smoothing method.
	/// </summary>
	public ExpBlauCsiStrategy.BlauCsiSmoothMethods SmoothMethod { get; set; } = ExpBlauCsiStrategy.BlauCsiSmoothMethods.Exponential;

	/// <summary>
	/// Momentum length.
	/// </summary>
	public int MomentumLength { get; set; } = 1;

	/// <summary>
	/// First smoothing length.
	/// </summary>
	public int FirstSmoothingLength { get; set; } = 20;

	/// <summary>
	/// Second smoothing length.
	/// </summary>
	public int SecondSmoothingLength { get; set; } = 5;

	/// <summary>
	/// Third smoothing length.
	/// </summary>
	public int ThirdSmoothingLength { get; set; } = 3;

	/// <summary>
	/// Phase parameter for Jurik average.
	/// </summary>
	public int Phase { get; set; } = 15;

	/// <summary>
	/// Price constant used for the leading price.
	/// </summary>
	public ExpBlauCsiStrategy.BlauCsiAppliedPrices FirstPrice { get; set; } = ExpBlauCsiStrategy.BlauCsiAppliedPrices.Close;

	/// <summary>
	/// Price constant used for the lagging price.
	/// </summary>
	public ExpBlauCsiStrategy.BlauCsiAppliedPrices SecondPrice { get; set; } = ExpBlauCsiStrategy.BlauCsiAppliedPrices.Open;

	/// <inheritdoc />
	protected override IIndicatorValue OnProcess(IIndicatorValue input)
	{
		ICandleMessage candle = null;
		if (input is CandleIndicatorValue civ)
			candle = civ.GetValue<ICandleMessage>(default);
		if (candle == null || candle.State != CandleStates.Finished)
			return new DecimalIndicatorValue(this, default, input.Time);

		if (_momentumStage1 == null)
			Initialize();

		_window.Add(candle);
		while (_window.Count > Math.Max(MomentumLength, 1))
			_window.RemoveAt(0);

		if (_window.Count < Math.Max(MomentumLength, 1))
		{
			IsFormed = false;
			return new DecimalIndicatorValue(this, default, input.Time);
		}

		var currentPrice = GetPrice(candle, FirstPrice);
		var pastCandle = _window[0];
		var pastPrice = GetPrice(pastCandle, SecondPrice);

		var min = decimal.MaxValue;
		var max = decimal.MinValue;

		foreach (var item in _window)
		{
			if (item.LowPrice < min)
				min = item.LowPrice;

			if (item.HighPrice > max)
				max = item.HighPrice;
		}

		var range = max - min;
		var momentum = currentPrice - pastPrice;

		var time = input.Time;
		var m1 = _momentumStage1!.Process(new DecimalIndicatorValue(_momentumStage1, momentum, time)).ToDecimal();
		var r1 = _rangeStage1!.Process(new DecimalIndicatorValue(_rangeStage1, range, time)).ToDecimal();

		var m2 = _momentumStage2!.Process(new DecimalIndicatorValue(_momentumStage2, m1, time)).ToDecimal();
		var r2 = _rangeStage2!.Process(new DecimalIndicatorValue(_rangeStage2, r1, time)).ToDecimal();

		var m3 = _momentumStage3!.Process(new DecimalIndicatorValue(_momentumStage3, m2, time)).ToDecimal();
		var r3 = _rangeStage3!.Process(new DecimalIndicatorValue(_rangeStage3, r2, time)).ToDecimal();

		decimal value;
		if (r3 != 0m)
			value = 100m * m3 / r3;
		else
			value = 0m;

		IsFormed = _momentumStage3.IsFormed && _rangeStage3.IsFormed;
		return new DecimalIndicatorValue(this, value, input.Time);
	}

	private void Initialize()
	{
		_momentumStage1 = CreateSmoother(FirstSmoothingLength);
		_momentumStage2 = CreateSmoother(SecondSmoothingLength);
		_momentumStage3 = CreateSmoother(ThirdSmoothingLength);

		_rangeStage1 = CreateSmoother(FirstSmoothingLength);
		_rangeStage2 = CreateSmoother(SecondSmoothingLength);
		_rangeStage3 = CreateSmoother(ThirdSmoothingLength);
	}

	private IIndicator CreateSmoother(int length)
	{
		return SmoothMethod switch
		{
			ExpBlauCsiStrategy.BlauCsiSmoothMethods.Simple => new SimpleMovingAverage { Length = length },
			ExpBlauCsiStrategy.BlauCsiSmoothMethods.Smoothed => new SmoothedMovingAverage { Length = length },
			ExpBlauCsiStrategy.BlauCsiSmoothMethods.LinearWeighted => new WeightedMovingAverage { Length = length },
			ExpBlauCsiStrategy.BlauCsiSmoothMethods.Jurik => new JurikMovingAverage { Length = length, Phase = Phase },
			_ => new ExponentialMovingAverage { Length = length }
		};
	}

	private static decimal GetPrice(ICandleMessage candle, ExpBlauCsiStrategy.BlauCsiAppliedPrices price)
	{
		return price switch
		{
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Close => candle.ClosePrice,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Open => candle.OpenPrice,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.High => candle.HighPrice,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Low => candle.LowPrice,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Median => (candle.HighPrice + candle.LowPrice) / 2m,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Typical => (candle.HighPrice + candle.LowPrice + candle.ClosePrice) / 3m,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Weighted => (2m * candle.ClosePrice + candle.HighPrice + candle.LowPrice) / 4m,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Simple => (candle.OpenPrice + candle.ClosePrice) / 2m,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Quarter => (candle.OpenPrice + candle.ClosePrice + candle.HighPrice + candle.LowPrice) / 4m,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.TrendFollow0 => candle.ClosePrice > candle.OpenPrice
				? candle.HighPrice
				: candle.ClosePrice < candle.OpenPrice
					? candle.LowPrice
					: candle.ClosePrice,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.TrendFollow1 => candle.ClosePrice > candle.OpenPrice
				? (candle.HighPrice + candle.ClosePrice) / 2m
				: candle.ClosePrice < candle.OpenPrice
					? (candle.LowPrice + candle.ClosePrice) / 2m
					: candle.ClosePrice,
			ExpBlauCsiStrategy.BlauCsiAppliedPrices.Demark => GetDemarkPrice(candle),
			_ => candle.ClosePrice
		};
	}

	private static decimal GetDemarkPrice(ICandleMessage candle)
	{
		var sum = candle.HighPrice + candle.LowPrice + candle.ClosePrice;

		if (candle.ClosePrice < candle.OpenPrice)
			sum = (sum + candle.LowPrice) / 2m;
		else if (candle.ClosePrice > candle.OpenPrice)
			sum = (sum + candle.HighPrice) / 2m;
		else
			sum = (sum + candle.ClosePrice) / 2m;

		return ((sum - candle.LowPrice) + (sum - candle.HighPrice)) / 2m;
	}
}