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Adx Bollinger Strategy 策略 (中文)

该文档的中文版本尚未完成，详细说明请参阅英文版 README.md。

测试表明年均收益约为 115%，该策略在股票市场表现最佳。

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>
/// Strategy based on ADX and Bollinger Bands indicators.
/// Enters long when ADX > 25 and price breaks above upper Bollinger band
/// Enters short when ADX > 25 and price breaks below lower Bollinger band
/// </summary>
public class AdxBollingerStrategy : Strategy
{
	private readonly StrategyParam<int> _adxPeriod;
	private readonly StrategyParam<int> _bollingerPeriod;
	private readonly StrategyParam<decimal> _bollingerDeviation;
	private readonly StrategyParam<int> _atrPeriod;
	private readonly StrategyParam<decimal> _atrMultiplier;
	private readonly StrategyParam<DataType> _candleType;

	/// <summary>
	/// ADX period
	/// </summary>
	public int AdxPeriod
	{
		get => _adxPeriod.Value;
		set => _adxPeriod.Value = value;
	}

	/// <summary>
	/// Bollinger Bands period
	/// </summary>
	public int BollingerPeriod
	{
		get => _bollingerPeriod.Value;
		set => _bollingerPeriod.Value = value;
	}

	/// <summary>
	/// Bollinger Bands deviation
	/// </summary>
	public decimal BollingerDeviation
	{
		get => _bollingerDeviation.Value;
		set => _bollingerDeviation.Value = value;
	}
	
	/// <summary>
	/// ATR period for stop-loss calculation
	/// </summary>
	public int AtrPeriod
	{
		get => _atrPeriod.Value;
		set => _atrPeriod.Value = value;
	}
	
	/// <summary>
	/// ATR multiplier for stop-loss
	/// </summary>
	public decimal AtrMultiplier
	{
		get => _atrMultiplier.Value;
		set => _atrMultiplier.Value = value;
	}

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

	/// <summary>
	/// Constructor
	/// </summary>
	public AdxBollingerStrategy()
	{
		_adxPeriod = Param(nameof(AdxPeriod), 14)
			.SetGreaterThanZero()
			.SetDisplay("ADX Period", "Period for ADX indicator", "Indicators")
			
			.SetOptimize(10, 20, 2);

		_bollingerPeriod = Param(nameof(BollingerPeriod), 20)
			.SetGreaterThanZero()
			.SetDisplay("Bollinger Period", "Period for Bollinger Bands", "Indicators")
			
			.SetOptimize(15, 30, 5);

		_bollingerDeviation = Param(nameof(BollingerDeviation), 2.0m)
			.SetGreaterThanZero()
			.SetDisplay("Bollinger Deviation", "Deviation multiplier for Bollinger Bands", "Indicators")
			
			.SetOptimize(1.5m, 2.5m, 0.5m);
			
		_atrPeriod = Param(nameof(AtrPeriod), 14)
			.SetGreaterThanZero()
			.SetDisplay("ATR Period", "Period for ATR indicator for stop-loss", "Risk Management")
			
			.SetOptimize(10, 20, 2);
			
		_atrMultiplier = Param(nameof(AtrMultiplier), 2.0m)
			.SetGreaterThanZero()
			.SetDisplay("ATR Multiplier", "Multiplier for ATR-based stop-loss", "Risk Management")
			
			.SetOptimize(1.5m, 3.0m, 0.5m);

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

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

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

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

		// Create indicators
		var adx = new AverageDirectionalIndex { Length = AdxPeriod };
		
		var bollinger = new BollingerBands
		{
			Length = BollingerPeriod,
			Width = BollingerDeviation
		};
		
		var atr = new AverageTrueRange { Length = AtrPeriod };

		// Subscribe to candles and bind indicators
		var subscription = SubscribeCandles(CandleType);
		
		subscription
			.BindEx(adx, bollinger, atr, ProcessCandle)
			.Start();

		// Setup chart visualization if available
		var area = CreateChartArea();
		if (area != null)
		{
			DrawCandles(area, subscription);
			DrawIndicator(area, bollinger);
			
			// Create a separate area for ADX
			var adxArea = CreateChartArea();
			if (adxArea != null)
			{
				DrawIndicator(adxArea, adx);
			}
			
			DrawOwnTrades(area);
		}
	}

	private void ProcessCandle(ICandleMessage candle, IIndicatorValue adxValue, IIndicatorValue bollingerValue, IIndicatorValue atrValue)
	{
		// Skip unfinished candles
		if (candle.State != CandleStates.Finished)
			return;
		
		// Check if strategy is ready to trade
		if (!IsFormedAndOnlineAndAllowTrading())
			return;

		// Get additional values from Bollinger Bands
		var bollingerValueTyped = (BollingerBandsValue)bollingerValue;

		var upperBand = bollingerValueTyped.UpBand;
		var lowerBand = bollingerValueTyped.LowBand;
		var middleBand = (upperBand - lowerBand) / 2 + lowerBand;

		// Current price (close of the candle)
		var price = candle.ClosePrice;

		// Stop-loss size based on ATR
		var stopSize = atrValue.ToDecimal() * AtrMultiplier;

		var adxValueTyped = (AverageDirectionalIndexValue)adxValue;

		// Trading logic
		if (adxValueTyped.MovingAverage > 25) // Strong trend
		{
			if (price > upperBand && Position <= 0)
			{
				// Buy signal: price above upper Bollinger band with strong trend
				BuyMarket(Volume + Math.Abs(Position));
				
				// Set stop-loss
				var stopPrice = price - stopSize;
				RegisterOrder(CreateOrder(Sides.Sell, stopPrice, Math.Abs(Position + Volume).Max(Volume)));
			}
			else if (price < lowerBand && Position >= 0)
			{
				// Sell signal: price below lower Bollinger band with strong trend
				SellMarket(Volume + Math.Abs(Position));
				
				// Set stop-loss
				var stopPrice = price + stopSize;
				RegisterOrder(CreateOrder(Sides.Buy, stopPrice, Math.Abs(Position + Volume).Max(Volume)));
			}
		}
		// Exit conditions
		else if (adxValueTyped.MovingAverage < 20)
		{
			// Trend is weakening - close any position
			if (Position > 0)
				SellMarket(Position);
			else if (Position < 0)
				BuyMarket(Math.Abs(Position));
		}
		// Also exit when price returns to middle band
		else if (price < middleBand && Position > 0)
		{
			// Exit long position when price returns to middle band
			SellMarket(Position);
		}
		else if (price > middleBand && Position < 0)
		{
			// Exit short position when price returns to middle band
			BuyMarket(Math.Abs(Position));
		}
	}
}