Bollinger Bands Breakout trend jangka pendek mengikut Strategi

Penulis:ChaoZhang, Tarikh: 2023-11-23 17:01:12
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Ringkasan

Bollinger Bands Breakout Strategy adalah strategi tren jangka pendek yang dioptimumkan untuk perdagangan kripto. Ia menggunakan penunjuk Bollinger Bands yang mapan sebagai penjana isyarat teras dan mampu mengambil kedua-dua kedudukan panjang dan pendek. Dengan mekanisme pengurusan risiko yang komprehensif, ia adalah sistem perdagangan automatik yang mantap yang sesuai untuk pasaran trend.

Strategi ini mempunyai tahap konfigurasi yang tinggi, termasuk parameter Bollinger Bands, pelbagai penapis, tetapan mengambil keuntungan / berhenti kerugian dan ambang kerugian maksimum intraday.

Cara Ia Bekerja

Strategi ini berpusat di sekitar penunjuk Bollinger Bands, yang mengira jalur tengah, jalur atas dan jalur bawah yang berfungsi sebagai proksi untuk purata harga dan had turun naik.

Di samping itu, pelbagai penapis dilaksanakan untuk mengelakkan isyarat palsu:

  1. Penapis Trend: panjang di atas purata bergerak, pendek di bawah purata bergerak

  2. Penapis Volatiliti: hanya berdagang apabila volatiliti berkembang

  3. Penapis Arah: boleh dikonfigurasi untuk arah panjang sahaja, pendek sahaja atau kedua-dua arah

  4. Rate of Change Filter: pergerakan harga yang mencukupi daripada penutupan sebelumnya diperlukan

  5. Penapis Tarikh: untuk spesifikasi jangka masa backtesting

Keluar diuruskan melalui mengambil keuntungan, menghentikan kerugian dan mekanisme berhenti menyusul untuk mengunci keuntungan dan mengehadkan kerugian.

Kelebihan

Kelebihan utama strategi ini termasuk:

  1. Indikator Bollinger Bands yang boleh dipercayai sebagai isyarat teras

  2. Penapis yang boleh disesuaikan menghalang perdagangan yang tidak diingini

  3. Reka bentuk stop loss/take profit yang komprehensif

  4. Perlindungan kerugian dalam hari maksimum terhadap pengeluaran yang melampau

  5. Berkembang di pasaran trend dengan potensi keuntungan

Risiko

Walaupun kelebihan, beberapa risiko masih kekal:

  1. Whipsaws di sekitar Bollinger Bands boleh membawa kepada kerugian

  2. Penapis yang terlalu kaku mengurangkan perdagangan di pasaran terhad

  3. Celah boleh menghentikan kedudukan secara preventif

  4. Pergerakan melampau tidak boleh dielakkan sepenuhnya

Pengurangan termasuk penyesuaian penapis, campur tangan manual dan hentian tweaked.

Peluang Peningkatan

Kemungkinan pengoptimuman untuk strategi ini:

  1. Cari kombinasi parameter yang optimum

  2. Memperkenalkan pembelajaran mesin untuk pengoptimuman adaptif

  3. Penyelidikan kaedah berhenti rugi yang lebih baik e.g. hentian turun naik

  4. Menggabungkan sentimen untuk membimbing tindakan pertimbangan

  5. Menggunakan instrumen korelasi untuk arbitraj statistik

Kesimpulan

Bollinger Bands Breakout Strategy adalah sistem yang telah diuji untuk perdagangan trend jangka pendek. Dengan menggabungkan kelebihan isyarat Bollinger Bands dan penapis yang berhati-hati, ia menghasilkan entri berkualiti untuk trend sambil mengelakkan isyarat palsu. Mekanisme pengurusan risiko yang komprehensif juga mengandungi penarikan dengan berkesan. Dengan peningkatan berterusan, strategi ini berpotensi menjadi sistem perdagangan automatik yang hebat.


/*backtest
start: 2022-11-22 00:00:00
end: 2023-11-04 05:20:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/


//@version=5
strategy("Bollinger Bands - Breakout Strategy",overlay=true
         )



// Define the length of the Bollinger Bands
bbLengthInput = input.int (15,title="Length", group="Bollinger Bands", inline="BB")
bbDevInput = input.float (2.0,title="StdDev", group="Bollinger Bands", inline="BB")

// Define the settings for the Trend Filter
trendFilterInput = input.bool(false, title="Above/Below", group = "Trend Filter", inline="Trend")
trendFilterPeriodInput = input(223,title="", group = "Trend Filter", inline="Trend")
trendFilterType = input.string (title="", defval="EMA",options=["EMA","SMA","RMA", "WMA"], group = "Trend Filter", inline="Trend")

volatilityFilterInput = input.bool(true,title="StdDev", group = "Volatility Filter", inline="Vol")
volatilityFilterStDevLength = input(15,title="",group = "Volatility Filter", inline="Vol")
volatilityStDevMaLength = input(15,title=">MA",group = "Volatility Filter", inline="Vol")

// ROC Filter

// f_security function by LucF for PineCoders available here: https://www.tradingview.com/script/cyPWY96u-How-to-avoid-repainting-when-using-security-PineCoders-FAQ/
f_security(_sym, _res, _src, _rep) => request.security(_sym, _res, _src[not _rep and barstate.isrealtime ? 1 : 0])[_rep or barstate.isrealtime ? 0 : 1]
high_daily = f_security(syminfo.tickerid, "D", high, false)

roc_enable = input.bool(false, "", group="ROC Filter from CloseD", inline="roc")
roc_threshold = input.float(1, "Treshold", step=0.5, group="ROC Filter from CloseD", inline="roc")

closed = f_security(syminfo.tickerid,"1D",close, false)
roc_filter= roc_enable ? (close-closed)/closed*100  > roc_threshold : true

// Trade Direction Filter

// tradeDirectionInput = input.string("Auto",options=["Auto", "Long&Short","Long Only", "Short Only"], title="Trade", group="Direction Filter", tooltip="Auto: if a PERP is detected (in the symbol description), trade long and short\n Otherwise as per user-input")

// tradeDirection = switch tradeDirectionInput
// 	"Auto" => str.contains(str.lower(syminfo.description), "perp") or str.contains(str.lower(syminfo.description), ".p") ? strategy.direction.all : strategy.direction.long
// 	"Long&Short" => strategy.direction.all
// 	"Long Only" => strategy.direction.long
//     "Short Only" => strategy.direction.short
// 	=> strategy.direction.all

// strategy.risk.allow_entry_in(tradeDirection)


// Calculate and plot the Bollinger Bands
[bbMiddle, bbUpper, bbLower] = ta.bb (close, bbLengthInput, bbDevInput)

plot(bbMiddle, "Basis", color=color.orange)
bbUpperPlot = plot(bbUpper, "Upper", color=color.blue)
bbLowerrPlot = plot(bbLower, "Lower", color=color.blue)
fill(bbUpperPlot, bbLowerrPlot, title = "Background", color=color.new(color.blue, 95))


// Calculate and view Trend Filter

float tradeConditionMa = switch trendFilterType
	"EMA" => ta.ema(close, trendFilterPeriodInput)
	"SMA" => ta.sma(close, trendFilterPeriodInput)
	"RMA" => ta.rma(close, trendFilterPeriodInput)
    "WMA" => ta.wma(close, trendFilterPeriodInput)
	// Default used when the three first cases do not match.
	=> ta.wma(close, trendFilterPeriodInput)


trendConditionLong  = trendFilterInput ? close > tradeConditionMa : true
trendConditionShort = trendFilterInput ? close < tradeConditionMa : true
plot(trendFilterInput ? tradeConditionMa : na, color=color.yellow)

// Calculate and view Volatility Filter

stdDevClose = ta.stdev(close,volatilityFilterStDevLength)
volatilityCondition = volatilityFilterInput ? stdDevClose > ta.sma(stdDevClose,volatilityStDevMaLength) : true

bbLowerCrossUnder =  ta.crossunder(close, bbLower)
bbUpperCrossOver =  ta.crossover(close, bbUpper)

bgcolor(volatilityCondition ? na : color.new(color.red, 95))


// Date Filter

start = input(timestamp("2017-01-01"), "Start", group="Date Filter")
finish = input(timestamp("2050-01-01"), "End", group="Date Filter")

date_filter = true

// Entry and Exit Conditions

entryLongCondition = bbUpperCrossOver and trendConditionLong and volatilityCondition and date_filter and roc_filter
entryShortCondition = bbLowerCrossUnder and trendConditionShort and volatilityCondition and date_filter and roc_filter

exitLongCondition = bbLowerCrossUnder
exitShortCondition = bbUpperCrossOver

// Orders

if entryLongCondition
    strategy.entry("EL", strategy.long)

if entryShortCondition
    strategy.entry("ES", strategy.short)

if exitLongCondition
    strategy.close("EL")

if exitShortCondition
    strategy.close("ES")



// Long SL/TP/TS

xl_ts_percent      = input.float(2,step=0.5, title= "TS", group="Exit Long", inline="LTS", tooltip="Trailing Treshold %")
xl_to_percent      = input.float(0.5, step=0.5, title= "TO", group="Exit Long", inline="LTS", tooltip="Trailing Offset %")

xl_ts_tick = xl_ts_percent * close/syminfo.mintick/100
xl_to_tick = xl_to_percent * close/syminfo.mintick/100

xl_sl_percent      = input.float (2, step=0.5, title="SL",group="Exit Long", inline="LSLTP") 
xl_tp_percent      = input.float(9, step=0.5, title="TP",group="Exit Long", inline="LSLTP")

xl_sl_price = strategy.position_avg_price * (1-xl_sl_percent/100)
xl_tp_price = strategy.position_avg_price * (1+xl_tp_percent/100)

strategy.exit("XL+SL/TP", "EL", stop=xl_sl_price, limit=xl_tp_price, trail_points=xl_ts_tick, trail_offset=xl_to_tick,comment_loss= "XL-SL", comment_profit = "XL-TP",comment_trailing = "XL-TS")

// Short SL/TP/TS
xs_ts_percent      = input.float(2,step=0.5, title= "TS",group="Exit Short", inline ="STS", tooltip="Trailing Treshold %")
xs_to_percent      = input.float(0.5, step=0.5, title= "TO",group="Exit Short", inline ="STS", tooltip="Trailing Offset %")

xs_ts_tick = xs_ts_percent * close/syminfo.mintick/100
xs_to_tick = xs_to_percent * close/syminfo.mintick/100

xs_sl_percent      = input.float (2, step=0.5, title="SL",group="Exit Short", inline="ESSLTP", tooltip="Stop Loss %") 
xs_tp_percent      = input.float(9, step=0.5, title="TP",group="Exit Short",  inline="ESSLTP", tooltip="Take Profit %")

xs_sl_price = strategy.position_avg_price * (1+xs_sl_percent/100)
xs_tp_price = strategy.position_avg_price * (1-xs_tp_percent/100)

strategy.exit("XS+SL/TP", "ES", stop=xs_sl_price, limit=xs_tp_price, trail_points=xs_ts_tick, trail_offset=xs_to_tick,comment_loss= "XS-SL", comment_profit = "XS-TP",comment_trailing = "XS-TS")


max_intraday_loss = input.int(10, title="Max Intraday Loss (Percent)", group="Risk Management")

//strategy.risk.max_intraday_loss(max_intraday_loss, strategy.percent_of_equity)

// Monthly Returns table, modified from QuantNomad. Please put calc_on_every_tick = true to plot it. 

monthly_table(int results_prec, bool results_dark) =>
    new_month = month(time) != month(time[1])
    new_year  = year(time)  != year(time[1])
    
    eq = strategy.equity
    
    bar_pnl = eq / eq[1] - 1
    
    cur_month_pnl = 0.0
    cur_year_pnl  = 0.0
    
    // Current Monthly P&L
    cur_month_pnl := new_month ? 0.0 : 
                     (1 + cur_month_pnl[1]) * (1 + bar_pnl) - 1 
    
    // Current Yearly P&L
    cur_year_pnl := new_year ? 0.0 : 
                     (1 + cur_year_pnl[1]) * (1 + bar_pnl) - 1  
    
    // Arrays to store Yearly and Monthly P&Ls
    var month_pnl  = array.new_float(0)
    var month_time = array.new_int(0)
    
    var year_pnl  = array.new_float(0)
    var year_time = array.new_int(0)
    
    last_computed = false
    
    if (not na(cur_month_pnl[1]) and (new_month or barstate.islast))
        if (last_computed[1])
            array.pop(month_pnl)
            array.pop(month_time)
            
        array.push(month_pnl , cur_month_pnl[1])
        array.push(month_time, time[1])
    
    if (not na(cur_year_pnl[1]) and (new_year or barstate.islast))
        if (last_computed[1])
            array.pop(year_pnl)
            array.pop(year_time)
            
        array.push(year_pnl , cur_year_pnl[1])
        array.push(year_time, time[1])
    
    last_computed := barstate.islast ? true : nz(last_computed[1])
    
    // Monthly P&L Table    
    var monthly_table = table(na)
    
    cell_hr_bg_color = results_dark ? #0F0F0F : #F5F5F5
    cell_hr_text_color = results_dark ? #D3D3D3 : #555555
    cell_border_color = results_dark ? #000000 : #FFFFFF

    // ell_hr_bg_color = results_dark ? #0F0F0F : #F5F5F5
    // cell_hr_text_color = results_dark ? #D3D3D3 : #555555
    // cell_border_color = results_dark ? #000000 : #FFFFFF
    if (barstate.islast)
        monthly_table := table.new(position.bottom_right, columns = 14, rows = array.size(year_pnl) + 1, bgcolor=cell_hr_bg_color,border_width=1,border_color=cell_border_color)
    
        table.cell(monthly_table, 0,  0, syminfo.tickerid + " " + timeframe.period,     text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 1,  0, "Jan",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 2,  0, "Feb",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 3,  0, "Mar",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 4,  0, "Apr",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 5,  0, "May",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 6,  0, "Jun",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 7,  0, "Jul",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 8,  0, "Aug",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 9,  0, "Sep",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 10, 0, "Oct",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 11, 0, "Nov",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 12, 0, "Dec",  text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
        table.cell(monthly_table, 13, 0, "Year", text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
    
        for yi = 0 to array.size(year_pnl) - 1
            table.cell(monthly_table, 0,  yi + 1, str.tostring(year(array.get(year_time, yi))), text_color=cell_hr_text_color, bgcolor=cell_hr_bg_color)
            
            y_color = array.get(year_pnl, yi) > 0 ? color.lime :  array.get(year_pnl, yi) < 0 ? color.red : color.gray
            table.cell(monthly_table, 13, yi + 1, str.tostring(math.round(array.get(year_pnl, yi) * 100, results_prec)), bgcolor = y_color)
            
        for mi = 0 to array.size(month_time) - 1
            m_row   = year(array.get(month_time, mi))  - year(array.get(year_time, 0)) + 1
            m_col   = month(array.get(month_time, mi)) 
            m_color = array.get(month_pnl, mi) > 0 ? color.lime : array.get(month_pnl, mi) < 0 ? color.red : color.gray
            
            table.cell(monthly_table, m_col, m_row, str.tostring(math.round(array.get(month_pnl, mi) * 100, results_prec)), bgcolor = m_color)

results_prec = input(2, title = "Precision", group="Results Table")
results_dark = input.bool(defval=true, title="Dark Mode", group="Results Table")
monthly_table(results_prec, results_dark)

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