康乃狄克海龟系统

创建日期: 2023-11-06 10:23:12 最后修改: 2023-11-06 10:23:12

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康乃狄克海龟系统

概述

该策略是基于著名的海龟交易系统开发的,尽可能遵循原始规则。它是一个追踪趋势的系统,通过双均线形成进入和退出信号。

策略原理

使用最高价计算 N1 日线和 N2 日线(默认 20 日和 55 日)构建双均线。
使用最低价计算 N3 日线和 N4 日线(默认 10 日和 20 日)构建双均线。
当收盘价超过 N2 日线时,做多;当收盘价低于 N4 日线时,平仓。
做多后,每上涨一个 N 倍ATR(默认1倍),加仓一次,最多加仓5次。
设置一个固定止损,默认为入场价以下 N 倍ATR(默认 2 倍)。
仅在上一交易为胜出后才允许进入新仓。

优势分析

该策略具有以下优势:

遵循趋势交易原则,能够捕捉中长线趋势。
双均线形成过滤条件,避免在震荡中频繁交易。
追踪止损设定合理,避免止损过于宽松或过于窄。
采用参数化设置,方便调整系统的风险收益特征。
允许加仓,能够在趋势中获得更多收益。

风险分析

该策略也存在一些风险:

在趋势反转时无法及时止损,可能带来较大亏损。
加仓次数过多可能带来过度交易的风险。
参数设置不当可能导致系统过于激进或保守。
回测数据拟合风险,实盘效果可能弱于回测。

可以通过以下方式降低风险:

增加反转信号判断,如MACD背离等,减少逆势损失。
优化参数,使系统的参数稳健。
增加 Position Sizing 方法。在大亏损出现时降低仓位。

优化方向

该策略可以从以下几个方面进行优化:

增加空头交易逻辑,使策略能够在下跌行情中也获得收益。
增加止损线优化模块,使止损线能随价格波动适当调整。
增加仓位管理模块,优化每次加仓仓位的大小。
结合趋势指数如ADX判断趋势强弱,避免错误交易。
优化参数以获得更平稳的收益曲线。
考虑实盘交易的滑点,手续费等交易成本。

总结

本策略通过追踪趋势获得收益,具有一定的回测优势。但实盘效果仍需检验,需要进一步优化参数稳健性,完善止损和仓位管理模块,才能使策略更适合实盘交易。总体来说,该策略思路合理,有很大的改进潜力。

策略源码

/*backtest
start: 2022-10-30 00:00:00
end: 2023-11-05 00:00:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=4
strategy(title="Turtle", overlay=true, initial_capital=100000, default_qty_type=strategy.percent_of_equity, default_qty_value=10, commission_type=strategy.commission.percent, commission_value=0.1, pyramiding=5)

stopInput = input(2.0, "Stop N", step=.5)
pyramidInput = input(1, "Pyramid N", step=.5)
l1LongInput = input(20, "L1 Long", minval=5)
l2LongInput = input(55, "L2 Long", minval=5)
l1LongExitInput = input (10, "L1 Long Exit", minval=5)
l2LongExitInput = input (20, "L2 Long Exit", minval=5)

FromYear = input(2000, "From Year", minval=1900),   FromMonth = input(1, "From Month", minval=1, maxval=12),    FromDay = input(1, "From Day", minval=1, maxval=31)
ToYear = input(9999, "To Year", minval=1900),       ToMonth = input(1, "To Month", minval=1, maxval=12),        ToDay = input(1, "To Day", minval=1, maxval=31)
FromDate = timestamp(FromYear, FromMonth, FromDay, 00, 00),     ToDate = timestamp(ToYear, ToMonth, ToDay, 23, 59)
TradeDateIsAllowed() => time >= FromDate and time <= ToDate
l1Long = highest(l1LongInput)
l1LongExit = lowest(l1LongExitInput)
l2Long = highest(l2LongInput)
l2LongExit = lowest(l2LongExitInput)

// 
// ADX, +-DI
// https://www.tradingview.com/script/rlMJ05yl-ADX-and-DI-pine-script-3-0/
//
len = 14
th = 20
TrueRange = max(max(high-low, abs(high-nz(close[1]))), abs(low-nz(close[1])))
DirectionalMovementPlus = high-nz(high[1]) > nz(low[1])-low ? max(high-nz(high[1]), 0): 0
DirectionalMovementMinus = nz(low[1])-low > high-nz(high[1]) ? max(nz(low[1])-low, 0): 0
SmoothedTrueRange = 0.0
SmoothedTrueRange := nz(SmoothedTrueRange[1]) - (nz(SmoothedTrueRange[1])/len) + TrueRange
SmoothedDirectionalMovementPlus = 0.0
SmoothedDirectionalMovementPlus := nz(SmoothedDirectionalMovementPlus[1]) - (nz(SmoothedDirectionalMovementPlus[1])/len) + DirectionalMovementPlus
SmoothedDirectionalMovementMinus = 0.0
SmoothedDirectionalMovementMinus := nz(SmoothedDirectionalMovementMinus[1]) - (nz(SmoothedDirectionalMovementMinus[1])/len) + DirectionalMovementMinus

DIPlus = SmoothedDirectionalMovementPlus / SmoothedTrueRange * 100
DIMinus = SmoothedDirectionalMovementMinus / SmoothedTrueRange * 100
DX = abs(DIPlus-DIMinus) / (DIPlus+DIMinus)*100
ADX = sma(DX, len)

// Back to Turtle

filter = true // not (DIPlus < ADX and DIMinus < ADX) and DIPlus > DIMinus
var win = false
var totalPrice = 0.0
var buyPrice = 0.0
var avgPrice = 0.0
var nextBuyPrice = 0.0
var stopPrice = 0.0
var totalBuys = 0

var bool inBuy = false
var float l1LongPlot = highest(l1LongInput)
var float l2LongPlot = highest(l2LongInput)

n = atr(14)

var mode = 'L1'
string longLevel = na

if not inBuy 
    l1LongPlot := highest(l1LongInput)[1]
    l2LongPlot := highest(l2LongInput)[1]
    
    if (close > l2Long[1] and filter)
        mode := 'L2'
        if TradeDateIsAllowed() 
            strategy.close_all()
            strategy.entry("long", strategy.long, comment="L2")
            longLevel := 'L2'

        win := false
        buyPrice := close
        totalBuys := 1
        totalPrice := buyPrice
        avgPrice := buyPrice
        stopPrice := close-(stopInput*n)
        nextBuyPrice := high+(pyramidInput*n)
        inBuy := true
    else 
        if (close > l1Long[1] and filter)
            mode := 'L1'
            if not win
                if TradeDateIsAllowed()
                    strategy.close_all()
                    strategy.entry("long", strategy.long, comment="L1")
                    longLevel := 'L1'
            win := false
            buyPrice := close
            totalBuys := 1
            totalPrice := buyPrice
            avgPrice := buyPrice
            stopPrice := close-(stopInput*n)
            nextBuyPrice := high+(pyramidInput*n)
            inBuy := true
        else 
            inBuy := false

else
    l1LongPlot := l1LongPlot[1]
    l2LongPlot := l2LongPlot[1]
    
    if close > nextBuyPrice and TradeDateIsAllowed() and totalBuys < 6
        strategy.entry("long", strategy.long, comment="LP")
        longLevel := 'P'
        stopPrice := close-(stopInput*n)
        nextBuyPrice := high+(pyramidInput*n)
        totalBuys := totalBuys + 1
        totalPrice := totalPrice + buyPrice
        avgPrice := totalPrice / totalBuys

    if (close < stopPrice) 
        inBuy := false
        if TradeDateIsAllowed()
            if (close >= avgPrice)
                longLevel := 'SG'
            else 
                longLevel := 'SR'
            strategy.close("long", strategy.long)
        win := false
        buyPrice := 0
        avgPrice := 0
    else
        if (mode == 'L1' and close > l2Long[1] and filter)
            if win
                inBuy := true
                win := false
                mode := 'L2'
                if TradeDateIsAllowed()
                    strategy.close_all()
                    longLevel := 'L2'
                    strategy.entry("long", strategy.long, comment="L2")
                buyPrice := close
                totalBuys := 1
                totalPrice := buyPrice
                avgPrice := buyPrice
                stopPrice := close-(stopInput*n)
                nextBuyPrice := close+(pyramidInput*n)
        else
            if (close < l1LongExit[1] or close < l2LongExit[1])
                inBuy := false
                if TradeDateIsAllowed()
                    strategy.close("long", strategy.long)
                if close < avgPrice
                    longLevel := 'SR'
                    win := false
                else
                    longLevel := 'SG'
                    win := true
                buyPrice := 0

plot(l1LongPlot, title="l1 long", linewidth=3, style=plot.style_stepline, color=color.green)
plot(l1LongExit[1], title="l1 exit", linewidth=3, style=plot.style_stepline, color=color.red)

plot(l2LongPlot, title="l2 long", linewidth=2, style=plot.style_stepline, color=color.green)
plot(l2LongExit[1], title="l2 exit", linewidth=2, style=plot.style_stepline, color=color.red)

plot(stopPrice, title="stop", linewidth=2, style=plot.style_stepline, color=color.purple)

plotarrow(longLevel == 'L1' ? 1 : 0, colordown=color.black, colorup=color.green, transp=40)
plotarrow(longLevel == 'L2' ? 1 : 0, colordown=color.black, colorup=color.purple, transp=40)
plotarrow(longLevel == 'SR' ? -1 : 0, colordown=color.red, colorup=color.purple, transp=40)
plotarrow(longLevel == 'SG' ? -1 : 0, colordown=color.green, colorup=color.purple, transp=40)

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