Alligator Simple 策略
概述
Alligator Simple 策略在 StockSharp 高级 API 中重现了 MetaTrader 的“Alligator Simple v1.0”专家顾问。策略只在已完成的 K 线中读取比尔·威廉姆斯的 Alligator 指标,并在上一根完成蜡烛的 Lips、Teeth、Jaw 三条线按照同一方向张开时建立仓位。每笔交易都可以按点值设置止损、止盈和移动止损,与原始 MQL 实现保持一致。
指标与数据
- Alligator 线:对蜡烛的中值价格
(最高价 + 最低价) / 2计算的三条平滑移动平均线(SMMA),并为 Jaw、Teeth、Lips 提供独立的周期与前移位数。 - 蜡烛数据:策略订阅一个可配置的
CandleType(默认 1 小时)并仅处理收盘完成的蜡烛,避免提前看到未来数据。
交易逻辑
- 信号判断
- 读取上一根完成蜡烛对应的移位后 Alligator 数值。
- 多头条件:
Lips[t-1] > Teeth[t-1] > Jaw[t-1]。 - 空头条件:
Lips[t-1] < Teeth[t-1] < Jaw[t-1]。
- 执行规则
- 当没有持仓时,按照
OrderVolume市价开仓。 - 同一时间仅持有一个方向的仓位,直到当前仓位平仓前忽略反向信号。
- 当没有持仓时,按照
出场与风险控制
- 初始止损:若
StopLossPips > 0,则按符号的最小报价步长(对 3/5 位小数品种会乘以 10)换算点值,将止损设置在成交价的相应距离。 - 止盈:当
TakeProfitPips > 0时,在成交价附近对称设置止盈,值为零时禁用。 - 移动止损:当
TrailingStopPips与TrailingStepPips都为正数时,价格向有利方向至少移动TrailingStop + TrailingStep后,将止损上移/下移到收盘价 − TrailingStop(多头)或收盘价 + TrailingStop(空头)。移动止损根据蜡烛的高低价模拟盘中触发。 - 离场处理:止损、止盈和移动止损在每根完成的蜡烛上检查,并通过市价单平仓。
参数
OrderVolume(默认 1):下单数量(手数或合约数)。StopLossPips(默认 100):初始止损点数,设为零则禁用。TakeProfitPips(默认 100):止盈点数,设为零则禁用。TrailingStopPips(默认 5):移动止损点数,设为零禁用移动止损。TrailingStepPips(默认 5):在移动止损调整前所需的额外点数,启用移动止损时必须为正。JawPeriod、TeethPeriod、LipsPeriod:Jaw、Teeth、Lips 的 SMMA 周期(默认 13/8/5)。JawShift、TeethShift、LipsShift:读取 Alligator 数值时使用的前移位数(默认 8/5/3)。CandleType:用于计算的蜡烛类型/周期(默认 1 小时)。
实现说明
- 点值根据交易品种的最小价格步长自动调整;对于三位或五位小数的品种会乘以 10,以复现 MetaTrader 中的点值定义。
- 指标历史缓冲区保存足够的数值以支持配置的前移位数,无需手动数组操作。
- 策略使用
BuyMarket与SellMarket高级方法提交订单,从而将代码重点放在信号与风控逻辑上。
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>
/// Simplified Bill Williams Alligator breakout strategy.
/// Buys when Lips > Teeth > Jaw (upward expansion).
/// Sells when Lips less than Teeth less than Jaw (downward expansion).
/// Uses stop-loss and take-profit for risk management.
/// </summary>
public class AlligatorSimpleStrategy : Strategy
{
private readonly StrategyParam<int> _jawPeriod;
private readonly StrategyParam<int> _teethPeriod;
private readonly StrategyParam<int> _lipsPeriod;
private readonly StrategyParam<int> _stopLossPoints;
private readonly StrategyParam<int> _takeProfitPoints;
private SmoothedMovingAverage _jaw;
private SmoothedMovingAverage _teeth;
private SmoothedMovingAverage _lips;
private decimal _entryPrice;
private int _cooldown;
/// <summary>
/// Period for the Alligator jaw (blue) smoothed moving average.
/// </summary>
public int JawPeriod
{
get => _jawPeriod.Value;
set => _jawPeriod.Value = value;
}
/// <summary>
/// Period for the Alligator teeth (red) smoothed moving average.
/// </summary>
public int TeethPeriod
{
get => _teethPeriod.Value;
set => _teethPeriod.Value = value;
}
/// <summary>
/// Period for the Alligator lips (green) smoothed moving average.
/// </summary>
public int LipsPeriod
{
get => _lipsPeriod.Value;
set => _lipsPeriod.Value = value;
}
/// <summary>
/// Stop-loss distance in price steps.
/// </summary>
public int StopLossPoints
{
get => _stopLossPoints.Value;
set => _stopLossPoints.Value = value;
}
/// <summary>
/// Take-profit distance in price steps.
/// </summary>
public int TakeProfitPoints
{
get => _takeProfitPoints.Value;
set => _takeProfitPoints.Value = value;
}
/// <summary>
/// Initialize <see cref="AlligatorSimpleStrategy"/>.
/// </summary>
public AlligatorSimpleStrategy()
{
_jawPeriod = Param(nameof(JawPeriod), 13)
.SetGreaterThanZero()
.SetDisplay("Jaw Period", "Alligator jaw period", "Alligator");
_teethPeriod = Param(nameof(TeethPeriod), 8)
.SetGreaterThanZero()
.SetDisplay("Teeth Period", "Alligator teeth period", "Alligator");
_lipsPeriod = Param(nameof(LipsPeriod), 5)
.SetGreaterThanZero()
.SetDisplay("Lips Period", "Alligator lips period", "Alligator");
_stopLossPoints = Param(nameof(StopLossPoints), 200)
.SetNotNegative()
.SetDisplay("Stop Loss", "Stop-loss distance in price steps", "Risk");
_takeProfitPoints = Param(nameof(TakeProfitPoints), 400)
.SetNotNegative()
.SetDisplay("Take Profit", "Take-profit distance in price steps", "Risk");
}
/// <inheritdoc />
public override IEnumerable<(Security sec, DataType dt)> GetWorkingSecurities()
{
yield return (Security, TimeSpan.FromMinutes(5).TimeFrame());
}
/// <inheritdoc />
protected override void OnReseted()
{
base.OnReseted();
_jaw = null;
_teeth = null;
_lips = null;
_entryPrice = 0;
_cooldown = 0;
}
/// <inheritdoc />
protected override void OnStarted2(DateTime time)
{
base.OnStarted2(time);
_jaw = new SmoothedMovingAverage { Length = JawPeriod };
_teeth = new SmoothedMovingAverage { Length = TeethPeriod };
_lips = new SmoothedMovingAverage { Length = LipsPeriod };
var subscription = SubscribeCandles(TimeSpan.FromMinutes(5).TimeFrame());
subscription.Bind(_jaw, _teeth, _lips, ProcessCandle);
subscription.Start();
}
private void ProcessCandle(ICandleMessage candle, decimal jawValue, decimal teethValue, decimal lipsValue)
{
if (candle.State != CandleStates.Finished)
return;
if (!_jaw.IsFormed || !_teeth.IsFormed || !_lips.IsFormed)
return;
if (_cooldown > 0)
{
_cooldown--;
return;
}
var close = candle.ClosePrice;
var step = Security?.PriceStep ?? 1m;
// Check SL/TP for existing positions
if (Position > 0 && _entryPrice > 0)
{
if (StopLossPoints > 0 && close <= _entryPrice - StopLossPoints * step)
{
SellMarket();
_entryPrice = 0;
_cooldown = 110;
return;
}
if (TakeProfitPoints > 0 && close >= _entryPrice + TakeProfitPoints * step)
{
SellMarket();
_entryPrice = 0;
_cooldown = 110;
return;
}
}
else if (Position < 0 && _entryPrice > 0)
{
if (StopLossPoints > 0 && close >= _entryPrice + StopLossPoints * step)
{
BuyMarket();
_entryPrice = 0;
_cooldown = 110;
return;
}
if (TakeProfitPoints > 0 && close <= _entryPrice - TakeProfitPoints * step)
{
BuyMarket();
_entryPrice = 0;
_cooldown = 110;
return;
}
}
// Buy when lips > teeth > jaw (Alligator opening upward)
if (lipsValue > teethValue && teethValue > jawValue && Position <= 0)
{
if (Position < 0)
BuyMarket();
BuyMarket();
_entryPrice = close;
_cooldown = 110;
}
// Sell when lips < teeth < jaw (Alligator opening downward)
else if (lipsValue < teethValue && teethValue < jawValue && Position >= 0)
{
if (Position > 0)
SellMarket();
SellMarket();
_entryPrice = close;
_cooldown = 110;
}
}
}
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 CandleStates
from StockSharp.Algo.Indicators import SmoothedMovingAverage
from StockSharp.Algo.Strategies import Strategy
from datatype_extensions import *
class alligator_simple_strategy(Strategy):
"""
Simplified Bill Williams Alligator breakout strategy.
Buys when Lips > Teeth > Jaw (upward expansion).
Sells when Lips < Teeth < Jaw (downward expansion).
Uses stop-loss and take-profit for risk management.
"""
def __init__(self):
super(alligator_simple_strategy, self).__init__()
self._jaw_period = self.Param("JawPeriod", 13) \
.SetGreaterThanZero() \
.SetDisplay("Jaw Period", "Alligator jaw period", "Alligator")
self._teeth_period = self.Param("TeethPeriod", 8) \
.SetGreaterThanZero() \
.SetDisplay("Teeth Period", "Alligator teeth period", "Alligator")
self._lips_period = self.Param("LipsPeriod", 5) \
.SetGreaterThanZero() \
.SetDisplay("Lips Period", "Alligator lips period", "Alligator")
self._stop_loss_points = self.Param("StopLossPoints", 200) \
.SetDisplay("Stop Loss", "Stop-loss distance in price steps", "Risk")
self._take_profit_points = self.Param("TakeProfitPoints", 400) \
.SetDisplay("Take Profit", "Take-profit distance in price steps", "Risk")
self._entry_price = 0.0
self._cooldown = 0
@property
def JawPeriod(self):
return self._jaw_period.Value
@JawPeriod.setter
def JawPeriod(self, value):
self._jaw_period.Value = value
@property
def TeethPeriod(self):
return self._teeth_period.Value
@TeethPeriod.setter
def TeethPeriod(self, value):
self._teeth_period.Value = value
@property
def LipsPeriod(self):
return self._lips_period.Value
@LipsPeriod.setter
def LipsPeriod(self, value):
self._lips_period.Value = value
@property
def StopLossPoints(self):
return self._stop_loss_points.Value
@StopLossPoints.setter
def StopLossPoints(self, value):
self._stop_loss_points.Value = value
@property
def TakeProfitPoints(self):
return self._take_profit_points.Value
@TakeProfitPoints.setter
def TakeProfitPoints(self, value):
self._take_profit_points.Value = value
def OnReseted(self):
super(alligator_simple_strategy, self).OnReseted()
self._entry_price = 0.0
self._cooldown = 0
def OnStarted2(self, time):
super(alligator_simple_strategy, self).OnStarted2(time)
jaw = SmoothedMovingAverage()
jaw.Length = self.JawPeriod
teeth = SmoothedMovingAverage()
teeth.Length = self.TeethPeriod
lips = SmoothedMovingAverage()
lips.Length = self.LipsPeriod
subscription = self.SubscribeCandles(tf(5))
subscription.Bind(jaw, teeth, lips, self.ProcessCandle).Start()
def ProcessCandle(self, candle, jaw_value, teeth_value, lips_value):
if candle.State != CandleStates.Finished:
return
if self._cooldown > 0:
self._cooldown -= 1
return
close = float(candle.ClosePrice)
step = 1.0
# Check SL/TP for existing positions
if self.Position > 0 and self._entry_price > 0:
if self.StopLossPoints > 0 and close <= self._entry_price - self.StopLossPoints * step:
self.SellMarket()
self._entry_price = 0.0
self._cooldown = 110
return
if self.TakeProfitPoints > 0 and close >= self._entry_price + self.TakeProfitPoints * step:
self.SellMarket()
self._entry_price = 0.0
self._cooldown = 110
return
elif self.Position < 0 and self._entry_price > 0:
if self.StopLossPoints > 0 and close >= self._entry_price + self.StopLossPoints * step:
self.BuyMarket()
self._entry_price = 0.0
self._cooldown = 110
return
if self.TakeProfitPoints > 0 and close <= self._entry_price - self.TakeProfitPoints * step:
self.BuyMarket()
self._entry_price = 0.0
self._cooldown = 110
return
# Buy when lips > teeth > jaw (Alligator opening upward)
if lips_value > teeth_value and teeth_value > jaw_value and self.Position <= 0:
if self.Position < 0:
self.BuyMarket()
self.BuyMarket()
self._entry_price = close
self._cooldown = 110
# Sell when lips < teeth < jaw (Alligator opening downward)
elif lips_value < teeth_value and teeth_value < jaw_value and self.Position >= 0:
if self.Position > 0:
self.SellMarket()
self.SellMarket()
self._entry_price = close
self._cooldown = 110
def CreateClone(self):
"""!! REQUIRED!! Creates a new instance of the strategy."""
return alligator_simple_strategy()