Moving Average Directionality Trend Strategy

Author: ChaoZhang, Date: 2023-09-14 17:47:01
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Strategy Logic

This strategy determines the long-term trend direction by analyzing the directionality of multiple moving averages. It goes long or short according to the trend.

The logic is:

  1. Compute moving averages of differing periods, e.g. 5-day, 20-day, 50-day, etc.

  2. Compare the directional tendency of the MAs to determine consistent alignment

  3. When MAs are uniformly trending up, a long-term bullish view is held. When uniformly down, long-term bearish.

  4. In bullish conditions, breakouts above downside stop loss triggers long entries

  5. In bearish conditions, breakouts below upside stop loss triggers short entries

  6. Trailing stops are used to control risk

The strategy emphasizes confirming the long-term trend before trading to reduce non-systematic risk.

Advantages

  • Multiple MAs combine to judge long-term trend directionality

  • Breakout entries follow the trend

  • Trailing stop strategy controls risk

Risks

  • MAs themselves lag prices

  • Incorrect trend judgement can lead to sustained losses

  • LONG or SHORT only misses opportunities

Summary

This strategy stresses determining the secular trend via MA directionality to minimize non-systematic risks. But judgement accuracy and stop tuning are critical.


/*backtest
start: 2022-09-07 00:00:00
end: 2023-06-24 00:00:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © HeWhoMustNotBeNamed

//@version=4
strategy("TrendMaAlignmentStrategy", overlay=true, initial_capital = 2000, default_qty_type = strategy.percent_of_equity, default_qty_value = 100, commission_type = strategy.commission.cash_per_order, pyramiding = 1, commission_value = 2)

MAType = input(title="Moving Average Type", defval="sma", options=["ema", "sma", "hma", "rma", "vwma", "wma"])
LookbackPeriod = input(5, step=10)
shortHighLowPeriod = input(10, step=10)
longHighLowPeriod = input(20, step=10)

atrlength=input(22)
stopMultiplyer = input(6, minval=1, maxval=10, step=0.5)
reentryStopMultiplyer = input(3, minval=1, maxval=10, step=0.5)
exitOnSignal = input(false)
tradeDirection = input(title="Trade Direction", defval=strategy.direction.long, options=[strategy.direction.all, strategy.direction.long, strategy.direction.short])

backtestYears = input(10, minval=1, step=1)
inDateRange = true

allowReduceCompound=true
includePartiallyAligned = true
considerYearlyHighLow = true
considerNewLongTermHighLows = true

//////////////////////////////////// Get Moving average ///////////////////////////////////
f_getMovingAverage(source, MAType, length)=>
    ma = sma(source, length)
    if(MAType == "ema")
        ma := ema(source,length)
    if(MAType == "hma")
        ma := hma(source,length)
    if(MAType == "rma")
        ma := rma(source,length)
    if(MAType == "vwma")
        ma := vwma(source,length)
    if(MAType == "wma")
        ma := wma(source,length)
    ma
    
f_getMaAlignment(MAType, includePartiallyAligned)=>
    ma5 = f_getMovingAverage(close,MAType,5)
    ma10 = f_getMovingAverage(close,MAType,10)
    ma20 = f_getMovingAverage(close,MAType,20)
    ma30 = f_getMovingAverage(close,MAType,30)
    ma50 = f_getMovingAverage(close,MAType,50)
    ma100 = f_getMovingAverage(close,MAType,100)
    ma200 = f_getMovingAverage(close,MAType,200)

    upwardScore = 0
    upwardScore := close > ma5? upwardScore+1:upwardScore
    upwardScore := ma5 > ma10? upwardScore+1:upwardScore
    upwardScore := ma10 > ma20? upwardScore+1:upwardScore
    upwardScore := ma20 > ma30? upwardScore+1:upwardScore
    upwardScore := ma30 > ma50? upwardScore+1:upwardScore
    upwardScore := ma50 > ma100? upwardScore+1:upwardScore
    upwardScore := ma100 > ma200? upwardScore+1:upwardScore
    
    upwards = close > ma5 and ma5 > ma10 and ma10 > ma20 and ma20 > ma30 and ma30 > ma50 and ma50 > ma100 and ma100 > ma200
    downwards = close < ma5 and ma5 < ma10 and ma10 < ma20 and ma20 < ma30 and ma30 < ma50 and ma50 < ma100 and ma100 < ma200
    upwards?1:downwards?-1:includePartiallyAligned ? (upwardScore > 5? 0.5: upwardScore < 2?-0.5:upwardScore>3?0.25:-0.25) : 0

f_getMaAlignmentHighLow(MAType, includePartiallyAligned, LookbackPeriod)=>
    maAlignment = f_getMaAlignment(MAType,includePartiallyAligned)
    [highest(maAlignment, LookbackPeriod), lowest(maAlignment, LookbackPeriod)]

//////////////////////////////////// Calculate new high low condition //////////////////////////////////////////////////
f_calculateNewHighLows(shortHighLowPeriod, longHighLowPeriod, considerNewLongTermHighLows)=>
    newHigh = highest(shortHighLowPeriod) == highest(longHighLowPeriod) or not considerNewLongTermHighLows
    newLow = lowest(shortHighLowPeriod) == lowest(longHighLowPeriod) or not considerNewLongTermHighLows
    [newHigh,newLow]

//////////////////////////////////// Calculate stop and compound //////////////////////////////////////////////////
f_calculateStopAndCompound(target, atr, stopMultiplyer, allowReduceCompound, barState)=>
    buyStop = target - (stopMultiplyer * atr)
    sellStop = target + (stopMultiplyer * atr)
    buyStop := (barState > 0 or strategy.position_size > 0 ) and (buyStop < buyStop[1] or close < sellStop[1])? buyStop[1] : strategy.position_size < 0 and close > buyStop[1]? buyStop[1] : barState < 0 and allowReduceCompound and buyStop > buyStop[1] ? buyStop[1] : buyStop
    sellStop := (barState < 0 or strategy.position_size < 0) and (sellStop > sellStop[1] or close > buyStop[1])? sellStop[1] : strategy.position_size > 0 and close < sellStop[1]? sellStop[1]: barState > 0 and allowReduceCompound and sellStop < sellStop[1] ? sellStop[1] : sellStop
    [buyStop, sellStop]

//////////////////////////////////// Calculate Yearly High Low //////////////////////////////////////////////////
f_getYearlyHighLowCondition(considerYearlyHighLow)=>
    yhigh = security(syminfo.tickerid, '12M', high[1]) 
    ylow = security(syminfo.tickerid, '12M', low[1]) 
    yhighlast = yhigh[365]
    ylowlast = ylow[365]
    yhighllast = yhigh[2 * 365]
    ylowllast = ylow[2 * 365]
    
    yearlyTrendUp = na(yhigh)? true : na(yhighlast)? close > yhigh : na(yhighllast)? close > max(yhigh,yhighlast) : close > max(yhigh, min(yhighlast, yhighllast))
    yearlyHighCondition = (  (na(yhigh) or na(yhighlast) ? true : (yhigh > yhighlast) ) and ( na(yhigh) or na(yhighllast) ? true : (yhigh > yhighllast))) or yearlyTrendUp or not considerYearlyHighLow
    yearlyTrendDown = na(ylow)? true : na(ylowlast)? close < ylow : na(ylowllast)? close < min(ylow,ylowlast) : close < min(ylow, max(ylowlast, ylowllast))
    yearlyLowCondition = (  (na(ylow) or na(ylowlast) ? true : (ylow < ylowlast) ) and ( na(ylow) or na(ylowllast) ? true : (ylow < ylowllast))) or yearlyTrendDown or not considerYearlyHighLow
    
    [yearlyHighCondition,yearlyLowCondition]
    
atr = atr(atrlength)    
[maAlignmentHigh, maAlignmentLow] = f_getMaAlignmentHighLow(MAType, includePartiallyAligned, LookbackPeriod)
[newHigh,newLow] = f_calculateNewHighLows(shortHighLowPeriod, longHighLowPeriod, considerNewLongTermHighLows)
[middle, upper, lower] = bb(close, 20, 2)
barState = (maAlignmentLow > 0 or maAlignmentHigh == 1) and newHigh ? 1 : (maAlignmentHigh < 0 or maAlignmentLow == -1) and newLow ? -1 : 0
[buyStop, sellStop] = f_calculateStopAndCompound(close, atr, stopMultiplyer, allowReduceCompound, barState)
[yearlyHighCondition,yearlyLowCondition] = f_getYearlyHighLowCondition(considerYearlyHighLow)

barcolor(barState == 1?color.lime : barState == -1? color.orange: color.silver)
//plot(maAlignmentHigh, title="AlighmentHigh", color=color.green, linewidth=2, style=plot.style_line)
//plot(maAlignmentLow, title="AlignmentLow", color=color.red, linewidth=2, style=plot.style_line)

plot(barState == 1 or strategy.position_size != 0 ?buyStop:na, title="BuyStop", color=color.green, linewidth=2, style=plot.style_linebr)
plot(barState == -1 or strategy.position_size != 0 ?sellStop:na, title="SellStop", color=color.red, linewidth=2, style=plot.style_linebr)

buyEntry = barState == 1 and close - reentryStopMultiplyer*atr > buyStop and yearlyHighCondition and inDateRange
sellEntry = barState == -1 and close + reentryStopMultiplyer*atr < sellStop and yearlyLowCondition and inDateRange
buyExit = barState == -1
sellExit = barState == 1

strategy.risk.allow_entry_in(tradeDirection)
strategy.entry("Buy", strategy.long, when=buyEntry)
strategy.close("Buy", when=buyExit and exitOnSignal)
strategy.exit("ExitBuy", "Buy", stop = buyStop)

strategy.entry("Sell", strategy.short, when=sellEntry)
strategy.close("Sell", when=sellExit and exitOnSignal)
strategy.exit("ExitSell", "Sell", stop = sellStop)

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