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Range Filter Strategy with ATR TP/SL

Strategy that enters when price crosses the range filter bands and exits using ATR-based take-profit and stop-loss levels.

Details

  • Entry Criteria: Price crosses above upper band for long, below lower band for short.
  • Long/Short: Both.
  • Exit Criteria: ATR-based take profit or stop loss.
  • Stops: ATR-based, fixed when trade opens.
  • Default Values:
    • RangeFilterLength = 20
    • RangeFilterMultiplier = 1.5
    • AtrLength = 14
    • TakeProfitMultiplier = 1.5
    • StopLossMultiplier = 1.5
  • Filters: none.
  • Complexity: medium.
  • Timeframe: configurable.
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>
/// Range Filter ATR TP SL strategy using EMA crossover.
/// </summary>
public class RangeFilterAtrTpSlStrategy : Strategy
{
	private readonly StrategyParam<int> _slowLength;
	private readonly StrategyParam<DataType> _candleType;

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

	public RangeFilterAtrTpSlStrategy()
	{
		_slowLength = Param(nameof(SlowLength), 40)
			.SetGreaterThanZero()
			.SetDisplay("Slow Length", "Slow EMA period", "General");

		_candleType = Param(nameof(CandleType), TimeSpan.FromMinutes(5).TimeFrame())
			.SetDisplay("Candle Type", "Candle type", "General");
	}

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

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

		var fast = new ExponentialMovingAverage { Length = 14 };
		var slow = new ExponentialMovingAverage { Length = SlowLength };

		var prevF = 0m;
		var prevS = 0m;
		var init = false;
		var lastSignal = DateTimeOffset.MinValue;
		var cooldown = TimeSpan.FromMinutes(360);

		var subscription = SubscribeCandles(CandleType);
		subscription
			.Bind(fast, slow, (candle, f, s) =>
			{
				if (candle.State != CandleStates.Finished)
					return;
				if (!fast.IsFormed || !slow.IsFormed)
					return;
				if (!init) { prevF = f; prevS = s; init = true; return; }
				if (candle.OpenTime - lastSignal >= cooldown)
				{
					if (prevF <= prevS && f > s && Position <= 0) { BuyMarket(); lastSignal = candle.OpenTime; }
					else if (prevF >= prevS && f < s && Position >= 0) { SellMarket(); lastSignal = candle.OpenTime; }
				}
				prevF = f; prevS = s;
			})
			.Start();

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