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Trend Following Strategy Based on Triple EMA and Linear Regression

Author: ChaoZhang, Date: 2023-09-13 17:13:36
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This strategy is named “Trend Following Strategy Based on Triple EMA and Linear Regression”. It uses crossover of the triple exponential moving average and linear regression line to identify trend direction, and sets adaptive stop loss to lock in profits.

The triple EMA (TEMA) combines the strengths of single EMA and double EMA to more sensitively capture price trend changes. Linear regression line reflects the long-term equilibrium trend of prices. When the short-term TEMA crosses above the long-term linear regression line, it signals an uptrend for considering long trades. The opposite suggests downtrends for considering shorts.

After entry, the strategy uses an ATR-based adaptive stop loss mechanism to lock in profits. It sets and adjusts stop distance based on market volatility. This avoids fixed stops while allowing stops to adaptively trail market fluctuations.

The advantage of this strategy is the indicator combo identifies trend direction relatively accurately. The adaptive stop loss method is also more advanced. But parameters need prudent testing and optimization for specific products, constantly adapting to market changes.

In summary, the reasonable integration of multiple technical indicators, together with strict risk management measures, can improve the efficiency of strategy trading and the ability to mitigate risks.


/*backtest
start: 2023-01-01 00:00:00
end: 2023-02-20 00:00:00
period: 1h
basePeriod: 15m
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/
// © Wunderbit Trading

//@version=4
strategy("Automated Bitcoin (BTC) Investment Strategy", overlay=true, initial_capital=5000,pyramiding = 0, currency="USD", default_qty_type=strategy.percent_of_equity, default_qty_value=100,  commission_type=strategy.commission.percent,commission_value=0.1)

////////////  Functions

Atr(p) =>
    atr = 0.
    Tr = max(high - low, max(abs(high - close[1]), abs(low - close[1])))
    atr := nz(atr[1] + (Tr - atr[1])/p,Tr)

//TEMA
TEMA(series, length) =>
    if (length > 0)
        ema1 = ema(series, length)
        ema2 = ema(ema1, length)
        ema3 = ema(ema2, length)
        (3 * ema1) - (3 * ema2) + ema3
    else
        na
tradeType = input("LONG", title="What trades should be taken : ", options=["LONG", "SHORT", "BOTH", "NONE"])

///////////////////////////////////////////////////
/// INDICATORS
source=close

/// TREND
trend_type1 = input("TEMA", title ="First Trend Line : ", options=["LSMA", "TEMA","EMA","SMA"])
trend_type2 = input("LSMA", title ="First Trend Line : ", options=["LSMA", "TEMA","EMA","SMA"])

trend_type1_length=input(25, "Length of the First Trend Line")
trend_type2_length=input(100, "Length of the Second Trend Line")

leadLine1 = if trend_type1=="LSMA"
    linreg(close, trend_type1_length, 0)
else if trend_type1=="TEMA"
    TEMA(close,trend_type1_length)
else if trend_type1 =="EMA"
    ema(close,trend_type1_length)
else
    sma(close,trend_type1_length)

leadLine2 = if trend_type2=="LSMA"
    linreg(close, trend_type2_length, 0)
else if trend_type2=="TEMA"
    TEMA(close,trend_type2_length)
else if trend_type2 =="EMA"
    ema(close,trend_type2_length)
else
    sma(close,trend_type2_length)

p3 = plot(leadLine1, color= #53b987, title="EMA", transp = 50, linewidth = 1)
p4 = plot(leadLine2, color= #eb4d5c, title="SMA", transp = 50, linewidth = 1)
fill(p3, p4, transp = 60, color = leadLine1 > leadLine2 ? #53b987 : #eb4d5c)

//Upward Trend
UT=crossover(leadLine1,leadLine2)
DT=crossunder(leadLine1,leadLine2)

// TP/ SL/  FOR LONG
// TAKE PROFIT AND STOP LOSS
long_tp1_inp = input(15, title='Long Take Profit 1 %', step=0.1)/100
long_tp1_qty = input(20, title="Long Take Profit 1 Qty", step=1)

long_tp2_inp = input(30, title='Long Take Profit 2%', step=0.1)/100
long_tp2_qty = input(20, title="Long Take Profit 2 Qty", step=1)

long_take_level_1 = strategy.position_avg_price * (1 + long_tp1_inp)
long_take_level_2 = strategy.position_avg_price * (1 + long_tp2_inp)

long_sl_input = input(5, title='stop loss in %', step=0.1)/100
long_sl_input_level = strategy.position_avg_price * (1 - long_sl_input)

// Stop Loss
multiplier = input(3.5, "SL Mutiplier", minval=1, step=0.1)
ATR_period=input(8,"ATR period", minval=1, step=1)

// Strategy
//LONG STRATEGY CONDITION

SC = input(close, "Source", input.source)
SL1 = multiplier * Atr(ATR_period)  // Stop Loss
Trail1 = 0.0
Trail1 :=  iff(SC < nz(Trail1[1], 0) and SC[1] < nz(Trail1[1], 0), min(nz(Trail1[1], 0), SC + SL1), iff(SC > nz(Trail1[1], 0), SC - SL1, SC + SL1))
Trail1_high=highest(Trail1,50)

// iff(SC > nz(Trail1[1], 0) and SC[1] > nz(Trail1[1], 0), max(nz(Trail1[1], 0), SC - SL1),

entry_long=crossover(leadLine1,leadLine2) and Trail1_high < close
exit_long = close < Trail1_high or crossover(leadLine2,leadLine1) or close < long_sl_input_level

///// BACKTEST PERIOD ///////
testStartYear = input(2016, "Backtest Start Year")
testStartMonth = input(1, "Backtest Start Month")
testStartDay = input(1, "Backtest Start Day")
testPeriodStart = timestamp(testStartYear, testStartMonth, testStartDay, 0, 0)

testStopYear = input(9999, "Backtest Stop Year")
testStopMonth = input(12, "Backtest Stop Month")
testStopDay = input(31, "Backtest Stop Day")
testPeriodStop = timestamp(testStopYear, testStopMonth, testStopDay, 0, 0)

testPeriod() =>
    time >= testPeriodStart and time <= testPeriodStop ? true : false

if testPeriod()
    if tradeType=="LONG" or tradeType=="BOTH"
        if strategy.position_size == 0 or strategy.position_size > 0
            strategy.entry("long", strategy.long, comment="BUY", when=entry_long)
            strategy.exit("TP1", "long", qty_percent=long_tp1_qty, limit=long_take_level_1)
            strategy.exit("TP2", "long", qty_percent=long_tp2_qty, limit=long_take_level_2)
            strategy.close("long", when=exit_long, comment="SL" )


// LONG POSITION

plot(strategy.position_size > 0 ? long_take_level_1 : na, style=plot.style_linebr, color=color.green, linewidth=1, title="1st Long Take Profit")
plot(strategy.position_size > 0 ? long_take_level_2 : na, style=plot.style_linebr, color=color.green, linewidth=1, title="2nd Long Take Profit")
plot(strategy.position_size > 0 ? Trail1_high : na, style=plot.style_linebr, color=color.red, linewidth=1, title="Long Stop Loss")

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