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RSI Reversion

Strategy based on RSI mean reversion

Testing indicates an average annual return of about 115%. It performs best in the stocks market.

RSI Reversion assumes price will revert after reaching extreme RSI values. When RSI falls below the lower threshold it buys; when above the upper threshold it sells. Positions close as RSI moves back toward neutral.

The extremes can be calibrated to suit various markets. Using additional filters like trend direction helps avoid fading strong moves too early.

Details

  • Entry Criteria: Signals based on RSI.
  • Long/Short: Both directions.
  • Exit Criteria: Opposite signal or stop.
  • Stops: Yes.
  • Default Values:
    • RsiPeriod = 14
    • OversoldThreshold = 30m
    • OverboughtThreshold = 70m
    • ExitLevel = 50m
    • StopLossPercent = 2m
    • CandleType = TimeSpan.FromMinutes(5)
  • Filters:
    • Category: Mean Reversion
    • Direction: Both
    • Indicators: RSI
    • Stops: Yes
    • Complexity: Basic
    • Timeframe: Intraday (5m)
    • Seasonality: No
    • Neural Networks: No
    • Divergence: No
    • Risk Level: Medium
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>
/// Strategy based on RSI mean reversion.
/// Buys when RSI crosses up from oversold zone, sells when RSI crosses down from overbought.
/// Uses SMA as trend filter.
/// </summary>
public class RsiReversionStrategy : Strategy
{
	private readonly StrategyParam<int> _rsiPeriod;
	private readonly StrategyParam<int> _smaPeriod;
	private readonly StrategyParam<DataType> _candleType;

	private decimal _prevRsi;
	private bool _hasPrevValues;
	private int _cooldown;

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

	/// <summary>
	/// SMA period for trend filter.
	/// </summary>
	public int SmaPeriod
	{
		get => _smaPeriod.Value;
		set => _smaPeriod.Value = value;
	}

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

	/// <summary>
	/// Initializes a new instance of the <see cref="RsiReversionStrategy"/>.
	/// </summary>
	public RsiReversionStrategy()
	{
		_rsiPeriod = Param(nameof(RsiPeriod), 14)
			.SetDisplay("RSI Period", "Period for RSI calculation", "Indicators")
			.SetOptimize(10, 20, 2);

		_smaPeriod = Param(nameof(SmaPeriod), 50)
			.SetDisplay("SMA Period", "Period for SMA trend filter", "Indicators")
			.SetOptimize(30, 70, 10);

		_candleType = Param(nameof(CandleType), TimeSpan.FromMinutes(5).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();
		_prevRsi = default;
		_hasPrevValues = default;
		_cooldown = default;
	}

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

		var rsi = new RelativeStrengthIndex { Length = RsiPeriod };
		var sma = new SimpleMovingAverage { Length = SmaPeriod };

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

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

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

		if (!IsFormedAndOnlineAndAllowTrading())
			return;

		if (rsiValue == 0 || smaValue == 0)
			return;

		if (!_hasPrevValues)
		{
			_hasPrevValues = true;
			_prevRsi = rsiValue;
			return;
		}

		if (_cooldown > 0)
		{
			_cooldown--;
			_prevRsi = rsiValue;
			return;
		}

		var price = candle.ClosePrice;

		// RSI crosses up from oversold (30) = buy (mean reversion)
		if (_prevRsi < 30 && rsiValue >= 30 && Position <= 0)
		{
			var volume = Volume + Math.Abs(Position);
			BuyMarket(volume);
			_cooldown = 10;
		}
		// RSI crosses down from overbought (70) = sell (mean reversion)
		else if (_prevRsi > 70 && rsiValue <= 70 && Position >= 0)
		{
			var volume = Volume + Math.Abs(Position);
			SellMarket(volume);
			_cooldown = 10;
		}

		_prevRsi = rsiValue;
	}
}