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CandlesticksBW 策略

该策略复现 Bill Williams 的 CandlesticksBW 方法。通过 Awesome Oscillator (AO) 与 Accelerator Oscillator (AC) 的动量变化为每根蜡烛上色，并根据颜色转换开仓或平仓。

工作原理

  • AO 计算为中值价格 5 与 34 周期 SMA 之差。
  • AC 计算为 AO 与其 5 周期 SMA 的差值。
  • 每根蜡烛根据 AO/AC 增减及蜡烛方向被划分为六种颜色。
  • 当倒数第二根蜡烛颜色小于 2 且上一根颜色大于 1 时开多，并平空。
  • 当倒数第二根蜡烛颜色大于 3 且上一根颜色小于 4 时开空，并平多。
  • 通过 StartProtection 应用止损和止盈。

参数

  • CandleType – 蜡烛周期。
  • SignalBar – 信号偏移的柱数。
  • StopLoss – 止损点数。
  • TakeProfit – 止盈点数。
  • BuyPosOpen – 允许做多开仓。
  • SellPosOpen – 允许做空开仓。
  • BuyPosClose – 允许平多。
  • SellPosClose – 允许平空。

指标

  • Awesome Oscillator（由 SMA 计算）。
  • Accelerator Oscillator。

交易规则

  • 开多： 倒数第二根颜色 <2 且上一根颜色 >1。
  • 开空： 倒数第二根颜色 >3 且上一根颜色 <4。
  • 平多： 满足开空条件且持有多头。
  • 平空： 满足开多条件且持有空头。
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>
/// CandlesticksBW strategy based on Bill Williams' color classification of candles.
/// Uses Awesome and Accelerator oscillators to detect momentum shifts.
/// </summary>
public class CandlesticksBwStrategy : Strategy
{
	private readonly StrategyParam<DataType> _candleType;

	private SimpleMovingAverage _aoFast;
	private SimpleMovingAverage _aoSlow;
	private SimpleMovingAverage _acMa;

	private decimal _prevAo;
	private decimal _prevAc;
	private bool _hasPrev;
	private int _prevColor = -1;

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

	public CandlesticksBwStrategy()
	{
		_candleType = Param(nameof(CandleType), TimeSpan.FromHours(4).TimeFrame())
			.SetDisplay("Candle Type", "Time frame for analysis", "General");
	}

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

	protected override void OnReseted()
	{
		base.OnReseted();
		_aoFast = null;
		_aoSlow = null;
		_acMa = null;
		_prevAo = 0;
		_prevAc = 0;
		_hasPrev = false;
		_prevColor = -1;
	}

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

		_prevAo = 0;
		_prevAc = 0;
		_hasPrev = false;
		_prevColor = -1;

		_aoFast = new SimpleMovingAverage { Length = 5 };
		_aoSlow = new SimpleMovingAverage { Length = 34 };
		_acMa = new SimpleMovingAverage { Length = 5 };

		Indicators.Add(_aoFast);
		Indicators.Add(_aoSlow);
		Indicators.Add(_acMa);

		var sma = new SimpleMovingAverage { Length = 1 };

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

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

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

		var hl2 = (candle.HighPrice + candle.LowPrice) / 2m;
		var t = candle.CloseTime;

		var aoFastResult = _aoFast.Process(hl2, t, true);
		var aoSlowResult = _aoSlow.Process(hl2, t, true);

		if (!_aoFast.IsFormed || !_aoSlow.IsFormed)
			return;

		var ao = aoFastResult.GetValue<decimal>() - aoSlowResult.GetValue<decimal>();
		var acMaResult = _acMa.Process(ao, t, true);

		if (!_acMa.IsFormed)
			return;

		var ac = ao - acMaResult.GetValue<decimal>();

		// Bill Williams candle color classification:
		// 0 = green (bullish candle + AO up + AC up)
		// 1 = fade (bearish candle + AO up + AC up)
		// 2 = squat green (bullish, mixed)
		// 3 = squat red (bearish, mixed)
		// 4 = fake (bullish candle + AO down + AC down)
		// 5 = red (bearish candle + AO down + AC down)
		int color;
		if (_hasPrev && ao >= _prevAo && ac >= _prevAc)
			color = candle.OpenPrice <= candle.ClosePrice ? 0 : 1;
		else if (_hasPrev && ao <= _prevAo && ac <= _prevAc)
			color = candle.OpenPrice >= candle.ClosePrice ? 5 : 4;
		else
			color = candle.OpenPrice <= candle.ClosePrice ? 2 : 3;

		_prevAo = ao;
		_prevAc = ac;
		_hasPrev = true;

		if (!IsFormedAndOnline())
		{
			_prevColor = color;
			return;
		}

		if (_prevColor < 0)
		{
			_prevColor = color;
			return;
		}

		// Bullish signal: prev was up momentum (0 or 1), current transitions
		if (_prevColor < 2 && color > 1 && Position <= 0)
			BuyMarket();
		// Bearish signal: prev was down momentum (4 or 5), current transitions
		else if (_prevColor > 3 && color < 4 && Position >= 0)
			SellMarket();

		_prevColor = color;
	}
}