La Estrella Vespertina es la imagen especular de la Estrella de la Mañana pero indica un posible techo. Comienza con una fuerte vela alcista, seguida de una pequeña vela de indecisión, y termina con una vela bajista que cierra por debajo del punto medio de la primera barra.
Las pruebas indican un rendimiento anual promedio de aproximadamente el 100%. Funciona mejor en el mercado forex.
El algoritmo observa secuencias de tres velas. Cuando se forma el patrón, entra en corto con un stop por encima del máximo de la pequeña vela central. Las posiciones salen una vez que el precio cae por debajo del mínimo de la vela de confirmación o si el stop es activado.
Dado que la configuración anticipa una reversión rápida desde condiciones de sobrecompra, las operaciones típicamente apuntan a movimientos cortos impulsados por el momentum a la baja.
Detalles
Criterios de entrada: Patrón de tres velas Estrella Vespertina.
Largo/Corto: Solo cortos.
Criterios de salida: Precio por debajo del mínimo de la barra de confirmación o stop-loss.
Stops: Sí, por encima del máximo de la vela central.
Valores predeterminados:
CandleType = 5 minute
StopLossPercent = 1
Filtros:
Categoría: Patrón
Dirección: Corto
Indicadores: Candlestick
Stops: Sí
Complejidad: Intermedio
Marco temporal: Intradía
Estacionalidad: No
Redes neuronales: No
Divergencia: No
Nivel de riesgo: Medio
using System;
using System.Collections.Generic;
using Ecng.Common;
using StockSharp.Algo.Strategies;
using StockSharp.BusinessEntities;
using StockSharp.Messages;
namespace StockSharp.Samples.Strategies;
/// <summary>
/// Short-only three-candle Evening Star with middle-candle-high stop and confirmation-low target.
/// </summary>
public class EveningStarStrategy : Strategy
{
private readonly StrategyParam<DataType> _candleType;
private readonly StrategyParam<decimal> _stopLossPercent;
private readonly List<ICandleMessage> _recent = new();
private decimal? _stopPrice;
private decimal? _targetPrice;
private Order _entryOrder;
private Order _exitOrder;
public DataType CandleType { get => _candleType.Value; set => _candleType.Value = value; }
public decimal StopLossPercent { get => _stopLossPercent.Value; set => _stopLossPercent.Value = value; }
public EveningStarStrategy()
{
_candleType = Param(nameof(CandleType), TimeSpan.FromMinutes(5).TimeFrame())
.SetDisplay("Candle Type", "Evening Star pattern timeframe", "General");
_stopLossPercent = Param(nameof(StopLossPercent), 1m).SetNotNegative()
.SetDisplay("Stop above middle high (%)", "Buffer above the middle candle's high; zero places the stop at that high", "Protection");
}
public override IEnumerable<(Security sec, DataType dt)> GetWorkingSecurities()
=> [(Security, CandleType), (Security, DataType.Level1)];
protected override void OnReseted()
{
base.OnReseted();
ClearState();
}
private void ClearState()
{
_recent.Clear();
_stopPrice = _targetPrice = null;
_entryOrder = _exitOrder = null;
}
protected override void OnStarted2(DateTime time)
{
base.OnStarted2(time);
ClearState();
var asks = new Subscription(DataType.Level1, Security);
asks.MarketData.BuildField = Level1Fields.BestAskPrice;
SubscribeLevel1(asks).Bind(ProcessAsk).Start();
var candles = SubscribeCandles(CandleType);
candles.Bind(ProcessCandle).Start();
var area = CreateChartArea();
if (area != null)
{
DrawCandles(area, candles);
DrawOwnTrades(area);
}
}
private static bool IsPending(Order order)
=> order is not null && order.State is not (OrderStates.Done or OrderStates.Failed);
private void ProcessAsk(Level1ChangeMessage message)
{
if (message.TryGetDecimal(Level1Fields.BestAskPrice) is decimal ask && ask > 0m)
CheckExit(ask, ask);
}
private bool CheckExit(decimal high, decimal low)
{
if (Position >= 0m || IsPending(_exitOrder))
return false;
// With only a completed bar's range, prefer the adverse stop when both levels touched.
if (_stopPrice is decimal stop && high >= stop ||
_targetPrice is decimal target && low < target)
{
_exitOrder = BuyMarket(Math.Abs(Position));
_stopPrice = _targetPrice = null;
return true;
}
return false;
}
private void Append(ICandleMessage candle)
{
_recent.Add(candle);
if (_recent.Count > 2)
_recent.RemoveAt(0);
}
private void ProcessCandle(ICandleMessage candle)
{
if (candle.State != CandleStates.Finished)
return;
if (Position < 0m && CheckExit(candle.HighPrice, candle.LowPrice))
{
Append(candle);
return;
}
if (IsPending(_entryOrder) || IsPending(_exitOrder))
{
Append(candle);
return;
}
if (Position == 0m && _recent.Count == 2 && IsFormedAndOnlineAndAllowTrading())
{
var first = _recent[0];
var middle = _recent[1];
var firstBody = first.ClosePrice - first.OpenPrice;
var middleBody = Math.Abs(middle.ClosePrice - middle.OpenPrice);
var thirdBody = candle.OpenPrice - candle.ClosePrice;
var firstMidpoint = (first.HighPrice + first.LowPrice) / 2m;
if (firstBody > 0m && middleBody < firstBody / 2m &&
thirdBody > 0m && candle.ClosePrice < firstMidpoint)
{
_stopPrice = middle.HighPrice * (1m + StopLossPercent / 100m);
_targetPrice = candle.LowPrice;
_entryOrder = SellMarket(Volume);
}
}
Append(candle);
}
}
import clr
clr.AddReference("StockSharp.Messages")
clr.AddReference("StockSharp.Algo")
clr.AddReference("StockSharp.Algo.Strategies")
clr.AddReference("StockSharp.BusinessEntities")
from System import TimeSpan, Decimal, Math
from StockSharp.Messages import DataType, CandleStates, OrderStates, Level1Fields
from StockSharp.BusinessEntities import Subscription
from StockSharp.Algo.Strategies import Strategy
class evening_star_strategy(Strategy):
"""Short-only Evening Star with a middle-candle-high stop and confirmation-low target."""
def __init__(self):
super(evening_star_strategy, self).__init__()
self._candle_type = self.Param("CandleType", DataType.TimeFrame(TimeSpan.FromMinutes(5))).SetDisplay("Candle Type", "Evening Star pattern timeframe", "General")
self._stop_loss_percent = self.Param("StopLossPercent", 1.0).SetNotNegative().SetDisplay("Stop above middle high (%)", "Buffer above the middle candle's high; zero places the stop at that high", "Protection")
self._clear_state()
@property
def candle_type(self):
return self._candle_type.Value
def GetWorkingSecurities(self):
return [(self.Security, self.candle_type), (self.Security, DataType.Level1)]
def _clear_state(self):
self._recent = []
self._stop_price = None
self._target_price = None
self._entry_order = None
self._exit_order = None
def OnReseted(self):
super(evening_star_strategy, self).OnReseted()
self._clear_state()
def OnStarted2(self, time):
super(evening_star_strategy, self).OnStarted2(time)
self._clear_state()
asks = Subscription(DataType.Level1, self.Security)
asks.MarketData.BuildField = Level1Fields.BestAskPrice
self.SubscribeLevel1(asks).Bind(self._process_ask).Start()
candles = self.SubscribeCandles(self.candle_type)
candles.Bind(self._process_candle).Start()
area = self.CreateChartArea()
if area is not None:
self.DrawCandles(area, candles)
self.DrawOwnTrades(area)
@staticmethod
def _is_pending(order):
return order is not None and order.State not in (OrderStates.Done, OrderStates.Failed)
def _process_ask(self, message):
if message.Changes.ContainsKey(Level1Fields.BestAskPrice):
ask = message.Changes[Level1Fields.BestAskPrice]
if ask > 0:
self._check_exit(ask, ask)
def _check_exit(self, high, low):
if self.Position >= 0 or self._is_pending(self._exit_order):
return False
# With only a completed bar's range, prefer the adverse stop when both levels touched.
if ((self._stop_price is not None and high >= self._stop_price) or
(self._target_price is not None and low < self._target_price)):
self._exit_order = self.BuyMarket(Math.Abs(self.Position))
self._stop_price = None
self._target_price = None
return True
return False
def _append(self, candle):
self._recent.append(candle)
if len(self._recent) > 2:
self._recent.pop(0)
def _process_candle(self, candle):
if candle.State != CandleStates.Finished:
return
if self.Position < 0 and self._check_exit(candle.HighPrice, candle.LowPrice):
self._append(candle)
return
if self._is_pending(self._entry_order) or self._is_pending(self._exit_order):
self._append(candle)
return
if self.Position == 0 and len(self._recent) == 2 and self.IsFormedAndOnlineAndAllowTrading():
first, middle = self._recent
first_body = first.ClosePrice - first.OpenPrice
middle_body = Math.Abs(middle.ClosePrice - middle.OpenPrice)
third_body = candle.OpenPrice - candle.ClosePrice
first_midpoint = (first.HighPrice + first.LowPrice) / Decimal(2)
if (first_body > 0 and middle_body < first_body / Decimal(2) and
third_body > 0 and candle.ClosePrice < first_midpoint):
self._stop_price = middle.HighPrice * (Decimal(1) + Decimal(self._stop_loss_percent.Value) / Decimal(100))
self._target_price = candle.LowPrice
self._entry_order = self.SellMarket(self.Volume)
self._append(candle)
def CreateClone(self):
return evening_star_strategy()