Este método de seguimiento de tendencia utiliza un Kalman Filter para suavizar las fluctuaciones de precio y estimar la dirección subyacente. El filtro se adapta dinámicamente al ruido del mercado, ofreciendo una visión refinada de la fortaleza de la tendencia en comparación con las medias móviles estándar.
Las pruebas indican un retorno anual promedio de aproximadamente 112%. Funciona mejor en el mercado de forex.
Se abre una posición larga cuando el precio de cierre sube por encima de la estimación del Kalman Filter. Por el contrario, se toma una posición corta cuando el cierre cae por debajo del valor del filtro. Dado que el filtro se actualiza en cada barra, las operaciones cambian cada vez que el precio cruza la línea, proporcionando participación continua en mercados en tendencia.
Los traders que prefieren enfoques sistemáticos pueden encontrar el Kalman Filter útil para reducir los movimientos erráticos. Un stop de protección basado en ATR mantiene el riesgo limitado en caso de que la tendencia revierta rápidamente.
Detalles
Criterios de entrada:
Largo: Cierre > Kalman Filter
Corto: Cierre < Kalman Filter
Largo/Corto: Ambos lados.
Criterios de salida:
Largo: Salir cuando cierre < Kalman Filter
Corto: Salir cuando cierre > Kalman Filter
Stops: Sí, stop-loss basado en ATR.
Valores predeterminados:
ProcessNoise = 0.01
MeasurementNoise = 0.1
AtrPeriod = 14
AtrMultiplier = 2
Una entrada al otro lado de la línea invierte la posición. El stop se sitúa a AtrMultiplier veces el ATR de AtrPeriod del cierre de entrada y se comprueba al cierre de las velas; después, el siguiente cierre más allá de la línea abre una nueva posición. 0 lo desactiva.
CandleType = TimeSpan.FromMinutes(5)
Filtros:
Categoría: Tendencia
Dirección: Ambos
Indicadores: Kalman Filter
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.Indicators;
using StockSharp.Algo.Strategies;
using StockSharp.BusinessEntities;
using StockSharp.Messages;
namespace StockSharp.Samples.Strategies;
/// <summary>
/// Kalman Filter Trend strategy.
/// A close above the Kalman filter estimate goes long and a close below it goes short, reversing an opposite position, so the position flips
/// whenever price crosses the line. The stop lies AtrMultiplier times the AtrPeriod ATR from the entry close and is checked on candle closes.
/// </summary>
public class KalmanFilterTrendStrategy : Strategy
{
private readonly StrategyParam<decimal> _processNoise;
private readonly StrategyParam<decimal> _measurementNoise;
private readonly StrategyParam<int> _atrPeriod;
private readonly StrategyParam<decimal> _atrMultiplier;
private readonly StrategyParam<DataType> _candleType;
private decimal _stopPrice;
/// <summary>
/// Process noise of the Kalman filter.
/// </summary>
public decimal ProcessNoise
{
get => _processNoise.Value;
set => _processNoise.Value = value;
}
/// <summary>
/// Measurement noise of the Kalman filter.
/// </summary>
public decimal MeasurementNoise
{
get => _measurementNoise.Value;
set => _measurementNoise.Value = value;
}
/// <summary>
/// Period of the stop ATR.
/// </summary>
public int AtrPeriod
{
get => _atrPeriod.Value;
set => _atrPeriod.Value = value;
}
/// <summary>
/// Stop distance from the entry in ATRs.
/// </summary>
public decimal AtrMultiplier
{
get => _atrMultiplier.Value;
set => _atrMultiplier.Value = value;
}
/// <summary>
/// Candle type.
/// </summary>
public DataType CandleType
{
get => _candleType.Value;
set => _candleType.Value = value;
}
/// <summary>
/// Constructor.
/// </summary>
public KalmanFilterTrendStrategy()
{
_processNoise = Param(nameof(ProcessNoise), 0.01m)
.SetGreaterThanZero()
.SetDisplay("Process Noise", "Process noise of the Kalman filter", "Kalman Filter");
_measurementNoise = Param(nameof(MeasurementNoise), 0.1m)
.SetGreaterThanZero()
.SetDisplay("Measurement Noise", "Measurement noise of the Kalman filter", "Kalman Filter");
_atrPeriod = Param(nameof(AtrPeriod), 14)
.SetGreaterThanZero()
.SetDisplay("ATR Period", "Period of the stop ATR", "Risk");
_atrMultiplier = Param(nameof(AtrMultiplier), 2m)
.SetNotNegative()
.SetDisplay("ATR Multiplier", "Stop distance from the entry in ATRs", "Risk");
_candleType = Param(nameof(CandleType), TimeSpan.FromMinutes(5).TimeFrame())
.SetDisplay("Candle Type", "Type of candles to use", "General");
}
/// <inheritdoc />
public override IEnumerable<(Security sec, DataType dt)> GetWorkingSecurities()
{
return [(Security, CandleType)];
}
/// <inheritdoc />
protected override void OnReseted()
{
base.OnReseted();
_stopPrice = default;
}
/// <inheritdoc />
protected override void OnStarted2(DateTime time)
{
base.OnStarted2(time);
_stopPrice = default;
var kalman = new KalmanFilter
{
ProcessNoise = ProcessNoise,
MeasurementNoise = MeasurementNoise,
};
var atr = new AverageTrueRange { Length = AtrPeriod };
var subscription = SubscribeCandles(CandleType);
subscription
.BindEx(kalman, atr, ProcessCandle)
.Start();
var area = CreateChartArea();
if (area != null)
{
DrawCandles(area, subscription);
DrawIndicator(area, kalman);
DrawOwnTrades(area);
var oscillators = CreateChartArea();
if (oscillators != null)
{
DrawIndicator(oscillators, atr);
}
}
}
private void ProcessCandle(ICandleMessage candle, IIndicatorValue kalmanValue, IIndicatorValue atrValue)
{
if (candle.State != CandleStates.Finished)
return;
if (!kalmanValue.IsFormed || !atrValue.IsFormed)
return;
if (!IsFormedAndOnlineAndAllowTrading())
return;
var line = kalmanValue.GetValue<decimal>();
var atr = atrValue.GetValue<decimal>();
var close = candle.ClosePrice;
if (close > line && Position <= 0)
{
BuyMarket(Volume + Math.Abs(Position));
_stopPrice = close - AtrMultiplier * atr;
}
else if (close < line && Position >= 0)
{
SellMarket(Volume + Math.Abs(Position));
_stopPrice = close + AtrMultiplier * atr;
}
else if (Position > 0 && AtrMultiplier > 0 && close <= _stopPrice)
{
SellMarket(Position);
}
else if (Position < 0 && AtrMultiplier > 0 && close >= _stopPrice)
{
BuyMarket(-Position);
}
}
}
import clr
clr.AddReference("StockSharp.Messages")
clr.AddReference("StockSharp.Algo")
clr.AddReference("StockSharp.Algo.Indicators")
clr.AddReference("StockSharp.Algo.Strategies")
from System import TimeSpan, Decimal
from StockSharp.Messages import DataType, CandleStates
from StockSharp.Algo.Indicators import KalmanFilter, AverageTrueRange
from StockSharp.Algo.Strategies import Strategy
class kalman_filter_trend_strategy(Strategy):
"""
Kalman Filter Trend strategy.
A close above the Kalman filter estimate goes long and a close below it goes short, reversing an opposite position, so the position flips
whenever price crosses the line. The stop lies AtrMultiplier times the AtrPeriod ATR from the entry close and is checked on candle closes.
"""
def __init__(self):
super(kalman_filter_trend_strategy, self).__init__()
self._process_noise = self.Param("ProcessNoise", 0.01).SetGreaterThanZero().SetDisplay("Process Noise", "Process noise of the Kalman filter", "Kalman Filter")
self._measurement_noise = self.Param("MeasurementNoise", 0.1).SetGreaterThanZero().SetDisplay("Measurement Noise", "Measurement noise of the Kalman filter", "Kalman Filter")
self._atr_period = self.Param("AtrPeriod", 14).SetGreaterThanZero().SetDisplay("ATR Period", "Period of the stop ATR", "Risk")
self._atr_multiplier = self.Param("AtrMultiplier", 2.0).SetNotNegative().SetDisplay("ATR Multiplier", "Stop distance from the entry in ATRs", "Risk")
self._candle_type = self.Param("CandleType", DataType.TimeFrame(TimeSpan.FromMinutes(5))).SetDisplay("Candle Type", "Type of candles to use", "General")
self._reset_state()
@property
def candle_type(self):
return self._candle_type.Value
def _reset_state(self):
self._stop_price = Decimal(0)
def OnReseted(self):
super(kalman_filter_trend_strategy, self).OnReseted()
self._reset_state()
def OnStarted2(self, time):
super(kalman_filter_trend_strategy, self).OnStarted2(time)
self._reset_state()
kalman = KalmanFilter()
kalman.ProcessNoise = Decimal(self._process_noise.Value)
kalman.MeasurementNoise = Decimal(self._measurement_noise.Value)
atr = AverageTrueRange()
atr.Length = self._atr_period.Value
subscription = self.SubscribeCandles(self.candle_type)
subscription.BindEx(kalman, atr, self._process_candle).Start()
area = self.CreateChartArea()
if area is not None:
self.DrawCandles(area, subscription)
self.DrawIndicator(area, kalman)
self.DrawOwnTrades(area)
oscillators = self.CreateChartArea()
if oscillators is not None:
self.DrawIndicator(oscillators, atr)
def _process_candle(self, candle, kalman_value, atr_value):
if candle.State != CandleStates.Finished:
return
if not kalman_value.IsFormed or not atr_value.IsFormed:
return
if not self.IsFormedAndOnlineAndAllowTrading():
return
line = kalman_value.GetValue[Decimal](None)
atr = atr_value.GetValue[Decimal](None)
close = candle.ClosePrice
stop_atr = Decimal(self._atr_multiplier.Value)
if close > line and self.Position <= 0:
self.BuyMarket(self.Volume + abs(self.Position))
self._stop_price = close - stop_atr * atr
elif close < line and self.Position >= 0:
self.SellMarket(self.Volume + abs(self.Position))
self._stop_price = close + stop_atr * atr
elif self.Position > 0 and stop_atr > 0 and close <= self._stop_price:
self.SellMarket(self.Position)
elif self.Position < 0 and stop_atr > 0 and close >= self._stop_price:
self.BuyMarket(-self.Position)
def CreateClone(self):
return kalman_filter_trend_strategy()