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Renko Scalper Strategy

This strategy attempts to capture short-term momentum by comparing the current close to the previous close. If the latest candle closes higher than the prior one, the strategy opens a long position. If the latest candle closes lower than the prior one, it opens a short position.

Stops and optional trailing stop are handled via the built-in protection module. The approach works on both sides of the market and relies solely on price action.

Details

  • Entry Criteria:
    • Long: Close(t) > Close(t-1).
    • Short: Close(t) < Close(t-1).
  • Long/Short: Both.
  • Exit Criteria: Opposite signal or protective stops.
  • Stops: Optional trailing stop, stop loss, and take profit via StartProtection.
  • Default Values:
    • CandleType = 1-minute.
    • StopLossPercent = 1.
    • TakeProfitPercent = 2.
    • IsTrailingStop = true.
  • Filters:
    • Category: Scalping.
    • Direction: Both.
    • Indicators: None.
    • Stops: Yes.
    • Complexity: Simple.
    • Timeframe: Short-term.
    • Seasonality: No.
    • Neural networks: No.
    • Divergence: No.
    • Risk level: High.
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>
/// Renko scalper strategy.
/// Opens long when close moves significantly above previous close, short when below.
/// </summary>
public class RenkoScalperStrategy : Strategy
{
	private readonly StrategyParam<DataType> _candleType;

	private decimal _previousClose;
	private bool _hasPrev;

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

	public RenkoScalperStrategy()
	{
		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(4).TimeFrame())
			.SetDisplay("Candle Type", "Type of candles", "General");
	}

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

	protected override void OnReseted()
	{
		base.OnReseted();
		_previousClose = 0;
		_hasPrev = false;
	}

	protected override void OnStarted2(DateTime time)
	{
		base.OnStarted2(time);

		var stdev = new StandardDeviation { Length = 20 };
		SubscribeCandles(CandleType).Bind(stdev, ProcessCandle).Start();
	}

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

		var close = candle.ClosePrice;

		if (!_hasPrev)
		{
			_previousClose = close;
			_hasPrev = true;
			return;
		}

		if (stdevVal <= 0) { _previousClose = close; return; }

		var diff = close - _previousClose;

		if (diff > stdevVal && Position <= 0)
		{
			if (Position < 0) BuyMarket();
			BuyMarket();
		}
		else if (diff < -stdevVal && Position >= 0)
		{
			if (Position > 0) SellMarket();
			SellMarket();
		}

		_previousClose = close;
	}
}