Momentum Moving Average Crossover Trend Following Strategy

Author: ChaoZhang, Date: 2023-10-24 12:31:44
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Overview

This strategy combines moving average crossovers and momentum indicators to effectively track and reverse trends. It first uses fast and slow moving averages to generate golden cross long signals and death cross short signals. Then with momentum indicators of certain parameters, if the momentum on the fast MA turns up again after golden cross, the trend is considered continuing and long position will be kept. When momentum turns down, it’s considered as trend reversal and existing position will be closed. The same logic applies to death cross short signals when tracking trend reversals. ADX filter is also used to avoid wrong signals when not in trending state.

Strategy Logic

The core logic of this strategy is based on trend signals from MA crossovers and trend reversal signals from momentum indicators. The key parts are:

  1. Calculate fast MA price1 (5-period HMA) and slow MA price2 (7-period HMA).

  2. Golden cross with price1 crossing above price2 generates long signal. Death cross with price1 crossing below price2 generates short signal. This is the common usage of MAs.

  3. After long signal, if price1’s momentum roc1 turns up again, the trend is considered continuing and long position will be kept.

  4. When momentum roc1 turns down, it’s considered as trend reversal and existing position will be closed. Same logic applies to short signals.

  5. Introduce ADX threshold to avoid wrong signals when not in trending state. Signals are generated only when ADX is above threshold.

Advantage Analysis

Compared to simple MA strategies, the biggest advantage of this strategy is the introduction of momentum indicators to determine trend reversals more promptly and accurately. Specific advantages:

  1. MAs themselves lag price changes, while momentum indicators can quickly capture reversal signals for timely stop loss or reverse trading.

  2. Reversal signals based on momentum are more reliable, avoiding unnecessary open/close orders during trend trading.

  3. ADX avoids wrong signals in non-trending markets, keeping the strategy more focused on trends with higher winning odds.

  4. The logic is simple and easy to understand, suitable for algo trading beginners.

  5. Large optimization space by adjusting MA periods, momentum parameters etc. for different markets.

Risk Analysis

The main risks of this strategy come from:

  1. The lagging nature of MAs, which may cause delayed signals, missing best entry points.

  2. False breakouts causing unnecessary entries or exits. Needs further optimization of parameters or additional filters.

  3. Trend reversal detection relies on momentum, which may falter during huge market swings.

  4. ADX is imperfect in detecting trends and consolidations. Improper threshold settings can cause issues.

  5. No consideration of trading costs. Proper stop loss should be set when applied in real trading.

Optimization Directions

The strategy can be further optimized in the following aspects:

  1. Try other types of MAs or adjust MA parameters for better smoothing effects.

  2. Optimize momentum indicator length for higher sensitivity to catch price reversals.

  3. Set price filters when momentum reverses to avoid being misled by short-term fluctuations.

  4. Enhance ADX usage by using different parameters at different ADX levels.

  5. Introduce volume indicators etc. to improve signal quality and filter false breakouts.

  6. Add stop loss mechanisms to control single trade loss. Evaluate realistic trading costs to set proper profit targets and stop loss.

Summary

This strategy combines the advantages of MA and momentum indicators to track trends and capture reversals. Compared to pure trend following strategies, it can be more flexible in dealing with different market stages, avoiding losses from trend climax while keeping trend trading. Further improvements can be made through parameter optimization and introducing auxiliary conditions. Overall speaking, the strategy has clear and simple logic, very suitable for algo trading beginners to learn and apply.


/*backtest
start: 2023-09-23 00:00:00
end: 2023-10-23 00:00:00
period: 4h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=3
//study(title="MA Crossover Strategy", overlay = true)
strategy("MA Crossover Strategy with MA Turning Point Exits", overlay=true)
src = input(open, title="Source")

price = request.security(syminfo.tickerid, timeframe.period, src)
ma1 = input(5, title="1st MA Length")
type1 = input("HMA", "1st MA Type", options=["SMA", "EMA", "HMA"])

ma2 = input(7, title="2nd MA Length")
type2 = input("HMA", "2nd MA Type", options=["SMA", "EMA", "HMA"])

adxlen = input(14, title="ADX Smoothing")
dilen = input(14, title="DI Length")
adxthreshold = input(20, title="ADX threshold")

dirmov(len) =>
	up = change(high)
	down = -change(low)
	plusDM = na(up) ? na : (up > down and up > 0 ? up : 0)
	minusDM = na(down) ? na : (down > up and down > 0 ? down : 0)
	truerange = rma(tr, len)
	plus = fixnan(100 * rma(plusDM, len) / truerange)
	minus = fixnan(100 * rma(minusDM, len) / truerange)
	[plus, minus]
adx(dilen, adxlen) =>
	[plus, minus] = dirmov(dilen)
	sum = plus + minus
	adx = 100 * rma(abs(plus - minus) / (sum == 0 ? 1 : sum), adxlen)
	
sig = adx(dilen, adxlen)

//study("Average Directional Index", shorttitle="ADX", format=format.price, precision=2, resolution="")

//plot(sig, color=color.red, title="ADX")

f_hma(_src, _length)=>
    _return = wma((2*wma(_src, _length/2))-wma(_src, _length), round(sqrt(_length)))
price1 = if (type1 == "SMA")
    sma(price, ma1)
else
    if (type1 == "EMA")
        ema(price, ma1)
    else
        f_hma(price, ma1)
    
price2 = if (type2 == "SMA")
    sma(price, ma2)
else
    if (type2 == "EMA")
        ema(price, ma2)
    else
        f_hma(price, ma2)

//plot(series=price, style=line,  title="Price", color=black, linewidth=1, transp=0)
plot(series=price1, style=line,  title="1st MA", color=blue, linewidth=2, transp=0)
plot(series=price2, style=line, title="2nd MA", color=green, linewidth=2, transp=0)


//longCondition = price1> price2
longCondition = price1> price2 and sig > adxthreshold
if (longCondition)
    strategy.entry("Long", strategy.long)

shortCondition = price1 < price2 and sig > adxthreshold
if (shortCondition)
    strategy.entry("Short", strategy.short)

lookback1 = input(1, "Lookback 1")
roc1 = roc(price1, lookback1)

ma1up = false
ma1down = false
ma2up = false
ma2down = false

ma1up := nz(ma1up[1])
ma1down := nz(ma1down[1])
ma2up := nz(ma2up[1])
ma2down := nz(ma2down[1])

trendStrength1 = input(2, title="Minimum slope magnitude * 100", type=float) * 0.01

if crossover(roc1, trendStrength1)
    ma1up := true
    ma1down := false
    
if crossunder(roc1, -trendStrength1) 
    ma1up := false
    ma1down := true

shortexitCondition = ma1up and ma1down[1] and sig > adxthreshold
if (shortexitCondition)
    strategy.close("Short")

longexitCondition = ma1down and ma1up[1] and sig > adxthreshold
if (longexitCondition)
    strategy.close("Long")
    
    



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