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节后疲软策略

节后疲软是指在主要假日结束后，由于成交清淡，价格往往缓慢下行。 很多交易者尚未回归，逆势波动因此更易获得动量。 本策略在节假日后的第一天卖空，并在市场参与度恢复后迅速回补。 采用小幅止损，避免低流动性期间产生过大亏损。

测试表明年均收益约为 112%，该策略在外汇市场表现最佳。

细节

  • 入场条件：日历效应触发
  • 多/空：均可
  • 退出条件：止损或反向信号
  • 止损：是，按百分比
  • 默认值:
    • CandleType = 15分钟
    • StopLoss = 2%
  • 过滤器:
    • 类别：季节性
    • 方向：双向
    • 指标：季节性
    • 止损：有
    • 复杂度：中等
    • 时间框架：日内
    • 季节性：是
    • 神经网络：否
    • 背离：否
    • 风险等级：中等
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>
/// Implementation of Post-Holiday Weakness trading strategy.
/// Sells short on Monday (post-weekend weakness) if below MA, covers Wednesday.
/// Buys on Wednesday if above MA, exits Friday.
/// </summary>
public class PostHolidayWeaknessStrategy : Strategy
{
	private readonly StrategyParam<int> _maPeriod;
	private readonly StrategyParam<DataType> _candleType;
	private readonly StrategyParam<int> _cooldownBars;

	private SimpleMovingAverage _ma;

	private int _cooldown;
	private DayOfWeek _prevDayOfWeek;
	private bool _enteredThisDay;

	/// <summary>
	/// Moving average period.
	/// </summary>
	public int MaPeriod
	{
		get => _maPeriod.Value;
		set => _maPeriod.Value = value;
	}

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

	/// <summary>
	/// Cooldown bars between trades.
	/// </summary>
	public int CooldownBars
	{
		get => _cooldownBars.Value;
		set => _cooldownBars.Value = value;
	}

	/// <summary>
	/// Initializes a new instance of the <see cref="PostHolidayWeaknessStrategy"/>.
	/// </summary>
	public PostHolidayWeaknessStrategy()
	{
		_maPeriod = Param(nameof(MaPeriod), 20)
			.SetGreaterThanZero()
			.SetDisplay("MA Period", "Moving average period", "Strategy");

		_candleType = Param(nameof(CandleType), TimeSpan.FromMinutes(5).TimeFrame())
			.SetDisplay("Candle Type", "Type of candles for strategy", "Strategy");

		_cooldownBars = Param(nameof(CooldownBars), 30)
			.SetDisplay("Cooldown Bars", "Bars between trades", "General")
			.SetRange(5, 500);
	}

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

	/// <inheritdoc />
	protected override void OnReseted()
	{
		base.OnReseted();
		_ma = default;
		_cooldown = 0;
		_prevDayOfWeek = DayOfWeek.Sunday;
		_enteredThisDay = false;
	}

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

		_ma = new SimpleMovingAverage { Length = MaPeriod };

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

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

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

		if (!IsFormedAndOnlineAndAllowTrading())
			return;

		var close = candle.ClosePrice;
		var dayOfWeek = candle.OpenTime.DayOfWeek;

		if (dayOfWeek != _prevDayOfWeek)
			_enteredThisDay = false;

		if (_cooldown > 0)
		{
			_cooldown--;
			_prevDayOfWeek = dayOfWeek;
			return;
		}

		// Monday: post-weekend weakness - short if below MA
		if (dayOfWeek == DayOfWeek.Monday && !_enteredThisDay && Position == 0 && close < maValue)
		{
			SellMarket();
			_cooldown = CooldownBars;
			_enteredThisDay = true;
		}
		// Wednesday: cover short
		else if (dayOfWeek == DayOfWeek.Wednesday && Position < 0 && !_enteredThisDay)
		{
			BuyMarket();
			_cooldown = CooldownBars;
			_enteredThisDay = true;
		}
		// Wednesday: buy if above MA
		else if (dayOfWeek == DayOfWeek.Wednesday && !_enteredThisDay && Position == 0 && close > maValue)
		{
			BuyMarket();
			_cooldown = CooldownBars;
			_enteredThisDay = true;
		}
		// Friday: exit long
		else if (dayOfWeek == DayOfWeek.Friday && Position > 0 && !_enteredThisDay)
		{
			SellMarket();
			_cooldown = CooldownBars;
			_enteredThisDay = true;
		}

		_prevDayOfWeek = dayOfWeek;
	}
}