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Exp BrainTrend2 AbsolutelyNoLagLwma X2MACandle MMRec 策略

概述

该策略把原始 MetaTrader 专家顾问的三段式结构移植到 StockSharp，并使用以下过滤器：

  1. BrainTrend2 思路：利用 ATR 指标刻画波动率的收缩与扩张，确认趋势背景。
  2. AbsolutelyNoLagLwma 近似：线性加权移动平均线提供低滞后的方向判断。
  3. X2MACandle 复刻：快、慢两条 EMA 共同判断 K 线颜色，确认动量。

只有当三个过滤器同时指向同一方向时才开仓。出场由 ATR 驱动的止损与止盈完成，从而模拟原策略中的 MMRec 资金管理模块。

交易逻辑

  • 做多：收盘价位于 LWMA 之上且快 EMA 高于慢 EMA。只有在之前的多头信号消失后才允许再次进场，避免重复开仓。
  • 做空：收盘价位于 LWMA 之下且快 EMA 低于慢 EMA。空头信号遵循相同的确认与冷却规则。
  • 风险控制：每根 K 线重新计算 ATR，并据此调整止损与止盈距离。一旦价格触及任一水平，策略会以市价单平仓全部仓位。

参数

名称 说明
CandleType 使用的 K 线类型，默认 6 小时，与原始 EA 保持一致。
AtrPeriod ATR 波动率指标的计算周期。
LwmaLength 线性加权移动平均的周期。
FastMaLength 用于判断蜡烛颜色的快 EMA 周期。
SlowMaLength 用于判断蜡烛颜色的慢 EMA 周期。
StopLossAtrMultiplier ATR 止损倍数。
TakeProfitAtrMultiplier ATR 止盈倍数。

所有参数均通过 StrategyParam<T> 暴露，可在 StockSharp 中直接优化。

说明

  • 原始 EA 依赖自定义指标缓冲区，本移植版本使用 StockSharp 自带指标实现相同的交易信号。
  • 资金管理采用整仓止盈/止损的方式，通过 ATR 动态距离保持 MMRec 的自适应特性。
  • 源代码中的注释全部为英文，符合转换规范。
namespace StockSharp.Samples.Strategies;

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;

/// <summary>
/// Hybrid strategy that combines ATR based breakout confirmation with LWMA and EMA filters.
/// </summary>
public class ExpBrainTrend2AbsolutelyNoLagLwmaX2MACandleMmrecStrategy : Strategy
{
	private readonly StrategyParam<DataType> _candleType;
	private readonly StrategyParam<int> _atrPeriod;
	private readonly StrategyParam<int> _lwmaLength;
	private readonly StrategyParam<int> _fastMaLength;
	private readonly StrategyParam<int> _slowMaLength;
	private readonly StrategyParam<decimal> _stopLossAtrMultiplier;
	private readonly StrategyParam<decimal> _takeProfitAtrMultiplier;

	private AverageTrueRange _atr;
	private WeightedMovingAverage _lwma;
	private ExponentialMovingAverage _fastEma;
	private ExponentialMovingAverage _slowEma;

	private bool _allowLongSignal;
	private bool _allowShortSignal;
	private decimal? _longEntryPrice;
	private decimal? _shortEntryPrice;

	/// <summary>
	/// Initializes a new instance of <see cref="ExpBrainTrend2AbsolutelyNoLagLwmaX2MACandleMmrecStrategy"/>.
	/// </summary>
	public ExpBrainTrend2AbsolutelyNoLagLwmaX2MACandleMmrecStrategy()
	{
		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(6).TimeFrame())
			.SetDisplay("Candle Type", "Primary candle series for the strategy", "General");

		_atrPeriod = Param(nameof(AtrPeriod), 7)
			.SetGreaterThanZero()
			.SetDisplay("ATR Period", "Average True Range lookback", "Indicators")
			
			.SetOptimize(5, 20, 1);

		_lwmaLength = Param(nameof(LwmaLength), 7)
			.SetGreaterThanZero()
			.SetDisplay("LWMA Length", "Linear weighted moving average length", "Indicators")
			
			.SetOptimize(5, 25, 1);

		_fastMaLength = Param(nameof(FastMaLength), 9)
			.SetGreaterThanZero()
			.SetDisplay("Fast EMA", "Fast EMA length used by the candle filter", "Indicators")
			
			.SetOptimize(5, 30, 1);

		_slowMaLength = Param(nameof(SlowMaLength), 21)
			.SetGreaterThanZero()
			.SetDisplay("Slow EMA", "Slow EMA length used by the candle filter", "Indicators")
			
			.SetOptimize(10, 60, 2);

		_stopLossAtrMultiplier = Param(nameof(StopLossAtrMultiplier), 2m)
			.SetGreaterThanZero()
			.SetDisplay("Stop Loss (ATR)", "Multiplier applied to ATR for protective stop", "Risk Management")
			
			.SetOptimize(1m, 4m, 0.5m);

		_takeProfitAtrMultiplier = Param(nameof(TakeProfitAtrMultiplier), 3m)
			.SetGreaterThanZero()
			.SetDisplay("Take Profit (ATR)", "Multiplier applied to ATR for profit target", "Risk Management")
			
			.SetOptimize(1.5m, 6m, 0.5m);
	}

	/// <summary>
	/// Working candle series.
	/// </summary>
	public DataType CandleType
	{
		get => _candleType.Value;
		set => _candleType.Value = value;
	}

	/// <summary>
	/// ATR period.
	/// </summary>
	public int AtrPeriod
	{
		get => _atrPeriod.Value;
		set => _atrPeriod.Value = value;
	}

	/// <summary>
	/// LWMA period.
	/// </summary>
	public int LwmaLength
	{
		get => _lwmaLength.Value;
		set => _lwmaLength.Value = value;
	}

	/// <summary>
	/// Fast EMA period used by the candle filter.
	/// </summary>
	public int FastMaLength
	{
		get => _fastMaLength.Value;
		set => _fastMaLength.Value = value;
	}

	/// <summary>
	/// Slow EMA period used by the candle filter.
	/// </summary>
	public int SlowMaLength
	{
		get => _slowMaLength.Value;
		set => _slowMaLength.Value = value;
	}

	/// <summary>
	/// Stop loss multiplier expressed in ATR units.
	/// </summary>
	public decimal StopLossAtrMultiplier
	{
		get => _stopLossAtrMultiplier.Value;
		set => _stopLossAtrMultiplier.Value = value;
	}

	/// <summary>
	/// Take profit multiplier expressed in ATR units.
	/// </summary>
	public decimal TakeProfitAtrMultiplier
	{
		get => _takeProfitAtrMultiplier.Value;
		set => _takeProfitAtrMultiplier.Value = value;
	}

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

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

			_allowLongSignal = false;
			_allowShortSignal = false;
		_longEntryPrice = null;
		_shortEntryPrice = null;
	}

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

		_atr = new AverageTrueRange
		{
			Length = AtrPeriod
		};

		_lwma = new WeightedMovingAverage
		{
			Length = LwmaLength
		};

		_fastEma = new EMA
		{
			Length = FastMaLength
		};

		_slowEma = new EMA
		{
			Length = SlowMaLength
		};

		var subscription = SubscribeCandles(CandleType);
		subscription
			.Bind(_atr, _lwma, _fastEma, _slowEma, ProcessCandle)
			.Start();

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

	private void ProcessCandle(ICandleMessage candle, decimal atrValue, decimal lwmaValue, decimal fastEmaValue, decimal slowEmaValue)
	{
		if (candle.State != CandleStates.Finished)
			return;

		if (!IsFormedAndOnlineAndAllowTrading())
			return;

		if (!_atr.IsFormed || !_lwma.IsFormed || !_fastEma.IsFormed || !_slowEma.IsFormed)
			return;

		var close = candle.ClosePrice;
		var high = candle.HighPrice;
		var low = candle.LowPrice;

		var bullishFilter = close > lwmaValue && fastEmaValue > slowEmaValue;
		var bearishFilter = close < lwmaValue && fastEmaValue < slowEmaValue;

		if (!bullishFilter)
			_allowLongSignal = true;

		if (!bearishFilter)
			_allowShortSignal = true;

		if (bullishFilter && Position <= 0 && _allowLongSignal)
		{
			BuyMarket(Volume + Math.Abs(Position));
			_allowLongSignal = false;
			_allowShortSignal = false;
		}
		else if (bearishFilter && Position >= 0 && _allowShortSignal)
		{
			SellMarket(Volume + Math.Abs(Position));
			_allowShortSignal = false;
			_allowLongSignal = false;
		}

		var atr = atrValue;

		if (Position > 0 && _longEntryPrice is decimal longPrice)
		{
			var stopPrice = longPrice - atr * StopLossAtrMultiplier;
			var targetPrice = longPrice + atr * TakeProfitAtrMultiplier;

			if (low <= stopPrice)
			{
				SellMarket(Position);
				_longEntryPrice = null;
			}
			else if (high >= targetPrice)
			{
				SellMarket(Position);
				_longEntryPrice = null;
			}
		}
		else if (Position < 0 && _shortEntryPrice is decimal shortPrice)
		{
			var stopPrice = shortPrice + atr * StopLossAtrMultiplier;
			var targetPrice = shortPrice - atr * TakeProfitAtrMultiplier;

			if (high >= stopPrice)
			{
				BuyMarket(-Position);
				_shortEntryPrice = null;
			}
			else if (low <= targetPrice)
			{
				BuyMarket(-Position);
				_shortEntryPrice = null;
			}
		}
	}

	/// <inheritdoc />
	protected override void OnOwnTradeReceived(MyTrade trade)
	{
		base.OnOwnTradeReceived(trade);

		if (trade.Order.Side == Sides.Buy)
		{
			_longEntryPrice = trade.Trade?.Price;
			if (Position <= 0)
				_shortEntryPrice = null;
		}
		else if (trade.Order.Side == Sides.Sell)
		{
			_shortEntryPrice = trade.Trade?.Price;
			if (Position >= 0)
				_longEntryPrice = null;
		}

		if (Position == 0)
		{
			_longEntryPrice = null;
			_shortEntryPrice = null;
		}
	}
}