Esta configuração procura uma reversão altista acentuada quando uma vela envolve completamente a barra baixista anterior. Tal formação frequentemente encerra uma queda de curto prazo e sugere um renovado impulso ascendente. O filtro de tendência de baixa opcional conta velas vermelhas consecutivas para confirmar o esgotamento dos vendedores.
Os testes indicam um retorno anual médio de aproximadamente 76%. Tem melhor desempenho no mercado forex.
Durante a operação ao vivo, o algoritmo observa cada vela entrante e mantém o controle da barra anterior. Se a nova vela fechar mais alta do que abre e seu corpo envolver a barra anterior, uma entrada comprada é acionada. O stop é colocado logo abaixo da mínima do padrão para limitar o risco.
As operações permanecem abertas até que o stop seja atingido ou outro sinal sugira saída discrecionária. Como a confirmação de barras de baixa anteriores fortalece a configuração, a estratégia evita perseguir reversões fracas.
Detalhes
Critérios de entrada: Vela altista envolve a barra baixista anterior, com tendência de baixa opcional presente.
Comprado/Vendido: Somente comprado.
Critérios de saída: Stop-loss ou discrecionário.
Stops: Sim, abaixo da mínima do padrão.
Valores padrão:
CandleType = 15 minute
StopLossPercent = 1
RequireDowntrend = true
DowntrendBars = 3
Filtros:
Categoria: Padrão
Direção: Comprado
Indicadores: Candlestick
Stops: Sim
Complexidade: Intermediário
Período: Intradiário
Sazonalidade: Não
Redes neurais: Não
Divergência: Não
Nível de risco: Médio
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>
/// Bullish Engulfing strategy.
/// Enters long on bullish engulfing pattern below SMA.
/// Enters short on bearish engulfing pattern above SMA.
/// Exits via SMA crossover.
/// </summary>
public class EngulfingBullishStrategy : Strategy
{
private readonly StrategyParam<int> _maPeriod;
private readonly StrategyParam<DataType> _candleType;
private readonly StrategyParam<int> _cooldownBars;
private ICandleMessage _previousCandle;
private int _cooldown;
/// <summary>
/// MA Period.
/// </summary>
public int MAPeriod
{
get => _maPeriod.Value;
set => _maPeriod.Value = value;
}
/// <summary>
/// Candle type.
/// </summary>
public DataType CandleType
{
get => _candleType.Value;
set => _candleType.Value = value;
}
/// <summary>
/// Cooldown bars.
/// </summary>
public int CooldownBars
{
get => _cooldownBars.Value;
set => _cooldownBars.Value = value;
}
/// <summary>
/// Constructor.
/// </summary>
public EngulfingBullishStrategy()
{
_maPeriod = Param(nameof(MAPeriod), 20)
.SetGreaterThanZero()
.SetDisplay("MA Period", "Period for SMA", "Indicators");
_candleType = Param(nameof(CandleType), TimeSpan.FromMinutes(1).TimeFrame())
.SetDisplay("Candle Type", "Type of candles to use", "General");
_cooldownBars = Param(nameof(CooldownBars), 500)
.SetRange(1, 1000)
.SetDisplay("Cooldown Bars", "Bars to wait between trades", "General");
}
/// <inheritdoc />
public override IEnumerable<(Security sec, DataType dt)> GetWorkingSecurities()
{
return [(Security, CandleType)];
}
/// <inheritdoc />
protected override void OnReseted()
{
base.OnReseted();
_previousCandle = null;
_cooldown = default;
}
/// <inheritdoc />
protected override void OnStarted2(DateTime time)
{
base.OnStarted2(time);
_previousCandle = null;
_cooldown = 0;
var sma = new SimpleMovingAverage { Length = MAPeriod };
var subscription = SubscribeCandles(CandleType);
subscription
.Bind(sma, ProcessCandle)
.Start();
var area = CreateChartArea();
if (area != null)
{
DrawCandles(area, subscription);
DrawIndicator(area, sma);
DrawOwnTrades(area);
}
}
private void ProcessCandle(ICandleMessage candle, decimal smaValue)
{
if (candle.State != CandleStates.Finished)
return;
if (!IsFormedAndOnlineAndAllowTrading())
return;
if (_cooldown > 0)
{
_cooldown--;
_previousCandle = candle;
return;
}
if (_previousCandle != null)
{
var isPrevBearish = _previousCandle.ClosePrice < _previousCandle.OpenPrice;
var isPrevBullish = _previousCandle.ClosePrice > _previousCandle.OpenPrice;
var isCurrBullish = candle.ClosePrice > candle.OpenPrice;
var isCurrBearish = candle.ClosePrice < candle.OpenPrice;
var bullishEngulfing = isPrevBearish && isCurrBullish &&
candle.ClosePrice > _previousCandle.OpenPrice &&
candle.OpenPrice < _previousCandle.ClosePrice;
var bearishEngulfing = isPrevBullish && isCurrBearish &&
candle.ClosePrice < _previousCandle.OpenPrice &&
candle.OpenPrice > _previousCandle.ClosePrice;
if (Position == 0 && bullishEngulfing && candle.ClosePrice < smaValue)
{
BuyMarket();
_cooldown = CooldownBars;
}
else if (Position == 0 && bearishEngulfing && candle.ClosePrice > smaValue)
{
SellMarket();
_cooldown = CooldownBars;
}
else if (Position > 0 && candle.ClosePrice < smaValue)
{
SellMarket();
_cooldown = CooldownBars;
}
else if (Position < 0 && candle.ClosePrice > smaValue)
{
BuyMarket();
_cooldown = CooldownBars;
}
}
_previousCandle = candle;
}
}
import clr
clr.AddReference("StockSharp.Messages")
clr.AddReference("StockSharp.Algo")
clr.AddReference("StockSharp.Algo.Indicators")
clr.AddReference("StockSharp.Algo.Strategies")
from System import TimeSpan
from StockSharp.Messages import DataType, CandleStates
from StockSharp.Algo.Indicators import SimpleMovingAverage
from StockSharp.Algo.Strategies import Strategy
class engulfing_bullish_strategy(Strategy):
"""
Bullish Engulfing strategy.
Enters long on bullish engulfing pattern below SMA.
Enters short on bearish engulfing pattern above SMA.
Exits via SMA crossover.
"""
def __init__(self):
super(engulfing_bullish_strategy, self).__init__()
self._ma_period = self.Param("MAPeriod", 20).SetDisplay("MA Period", "Period for SMA", "Indicators")
self._candle_type = self.Param("CandleType", DataType.TimeFrame(TimeSpan.FromMinutes(1))).SetDisplay("Candle Type", "Type of candles to use", "General")
self._cooldown_bars = self.Param("CooldownBars", 500).SetDisplay("Cooldown Bars", "Bars to wait between trades", "General")
self._previous_candle = None
self._cooldown = 0
@property
def candle_type(self):
return self._candle_type.Value
def OnReseted(self):
super(engulfing_bullish_strategy, self).OnReseted()
self._previous_candle = None
self._cooldown = 0
def OnStarted2(self, time):
super(engulfing_bullish_strategy, self).OnStarted2(time)
self._previous_candle = None
self._cooldown = 0
sma = SimpleMovingAverage()
sma.Length = self._ma_period.Value
subscription = self.SubscribeCandles(self.candle_type)
subscription.Bind(sma, self._process_candle).Start()
area = self.CreateChartArea()
if area is not None:
self.DrawCandles(area, subscription)
self.DrawIndicator(area, sma)
self.DrawOwnTrades(area)
def _process_candle(self, candle, sma_val):
if candle.State != CandleStates.Finished:
return
if self._cooldown > 0:
self._cooldown -= 1
self._previous_candle = candle
return
if self._previous_candle is not None:
prev_bearish = self._previous_candle.ClosePrice < self._previous_candle.OpenPrice
prev_bullish = self._previous_candle.ClosePrice > self._previous_candle.OpenPrice
curr_bullish = candle.ClosePrice > candle.OpenPrice
curr_bearish = candle.ClosePrice < candle.OpenPrice
bullish_engulfing = prev_bearish and curr_bullish and candle.ClosePrice > self._previous_candle.OpenPrice and candle.OpenPrice < self._previous_candle.ClosePrice
bearish_engulfing = prev_bullish and curr_bearish and candle.ClosePrice < self._previous_candle.OpenPrice and candle.OpenPrice > self._previous_candle.ClosePrice
sv = float(sma_val)
close = float(candle.ClosePrice)
cd = self._cooldown_bars.Value
if self.Position == 0 and bullish_engulfing and close < sv:
self.BuyMarket()
self._cooldown = cd
elif self.Position == 0 and bearish_engulfing and close > sv:
self.SellMarket()
self._cooldown = cd
elif self.Position > 0 and close < sv:
self.SellMarket()
self._cooldown = cd
elif self.Position < 0 and close > sv:
self.BuyMarket()
self._cooldown = cd
self._previous_candle = candle
def CreateClone(self):
return engulfing_bullish_strategy()