
Strategi ini menggunakan kombinasi antara Brinband dan Triple Overtrend Indicator untuk berdagang. Dengan penilaian antara-antara pergerakan Brinband dan pengesahan trend Triple Overtrend, ia membentuk sistem pengesanan trend yang mantap. Brinband digunakan untuk mengenal pasti turun naik harga yang melampau, sementara Triple Overtrend memberikan pengesahan arah trend secara berganda melalui pengaturan parameter yang berbeza.
Logik teras strategi merangkumi bahagian penting berikut:
Ini adalah strategi pengesanan trend yang menggabungkan Brin Belt dan Triple Overtrend untuk meningkatkan kebolehpercayaan perdagangan melalui pengesahan pelbagai petunjuk teknikal. Strategi ini mempunyai keupayaan untuk menangkap trend yang kuat dan keupayaan untuk mengawal risiko, tetapi juga perlu memperhatikan kesan persekitaran pasaran terhadap prestasi strategi. Dengan pengoptimuman dan penyempurnaan yang berterusan, strategi diharapkan dapat mengekalkan prestasi yang stabil dalam pelbagai keadaan pasaran.
//@version=5
strategy("Demo GPT - Bollinger + Triple Supertrend Combo", overlay=true, commission_type=strategy.commission.percent, commission_value=0.1, slippage=3)
// -------------------------------
// User Input for Date Range
// -------------------------------
startDate = input(title="Start Date", defval=timestamp("2018-01-01 00:00:00"))
endDate = input(title="End Date", defval=timestamp("2069-12-31 23:59:59"))
// -------------------------------
// Bollinger Band Inputs
// -------------------------------
lengthBB = input.int(20, "Bollinger Length")
multBB = input.float(2.0, "Bollinger Multiplier")
// -------------------------------
// Supertrend Inputs for 3 lines
// -------------------------------
// Line 1
atrPeriod1 = input.int(10, "ATR Length (Line 1)", minval = 1)
factor1 = input.float(3.0, "Factor (Line 1)", minval = 0.01, step = 0.01)
// Line 2
atrPeriod2 = input.int(10, "ATR Length (Line 2)", minval = 1)
factor2 = input.float(4.0, "Factor (Line 2)", minval = 0.01, step = 0.01)
// Line 3
atrPeriod3 = input.int(10, "ATR Length (Line 3)", minval = 1)
factor3 = input.float(5.0, "Factor (Line 3)", minval = 0.01, step = 0.01)
// -------------------------------
// Bollinger Band Calculation
// -------------------------------
basis = ta.sma(close, lengthBB)
dev = multBB * ta.stdev(close, lengthBB)
upperBand = basis + dev
lowerBand = basis - dev
// Plot Bollinger Bands
plot(upperBand, "Upper BB", color=color.new(color.blue, 0))
plot(basis, "Basis", color=color.new(color.gray, 0))
plot(lowerBand, "Lower BB", color=color.new(color.blue, 0))
// -------------------------------
// Supertrend Calculation Line 1
// -------------------------------
[supertrendLine1, direction1] = ta.supertrend(factor1, atrPeriod1)
supertrendLine1 := barstate.isfirst ? na : supertrendLine1
upTrend1 = plot(direction1 < 0 ? supertrendLine1 : na, "Up Trend 1", color = color.green, style = plot.style_linebr)
downTrend1 = plot(direction1 < 0 ? na : supertrendLine1, "Down Trend 1", color = color.red, style = plot.style_linebr)
// -------------------------------
// Supertrend Calculation Line 2
// -------------------------------
[supertrendLine2, direction2] = ta.supertrend(factor2, atrPeriod2)
supertrendLine2 := barstate.isfirst ? na : supertrendLine2
upTrend2 = plot(direction2 < 0 ? supertrendLine2 : na, "Up Trend 2", color = color.new(color.green, 0), style = plot.style_linebr)
downTrend2 = plot(direction2 < 0 ? na : supertrendLine2, "Down Trend 2", color = color.new(color.red, 0), style = plot.style_linebr)
// -------------------------------
// Supertrend Calculation Line 3
// -------------------------------
[supertrendLine3, direction3] = ta.supertrend(factor3, atrPeriod3)
supertrendLine3 := barstate.isfirst ? na : supertrendLine3
upTrend3 = plot(direction3 < 0 ? supertrendLine3 : na, "Up Trend 3", color = color.new(color.green, 0), style = plot.style_linebr)
downTrend3 = plot(direction3 < 0 ? na : supertrendLine3, "Down Trend 3", color = color.new(color.red, 0), style = plot.style_linebr)
// -------------------------------
// Middle line for fill (used as a reference line)
// -------------------------------
bodyMiddle = plot(barstate.isfirst ? na : (open + close) / 2, "Body Middle", display = display.none)
// Fill areas for each supertrend line
fill(bodyMiddle, upTrend1, color.new(color.green, 90), fillgaps = false)
fill(bodyMiddle, downTrend1, color.new(color.red, 90), fillgaps = false)
fill(bodyMiddle, upTrend2, color.new(color.green, 90), fillgaps = false)
fill(bodyMiddle, downTrend2, color.new(color.red, 90), fillgaps = false)
fill(bodyMiddle, upTrend3, color.new(color.green, 90), fillgaps = false)
fill(bodyMiddle, downTrend3, color.new(color.red, 90), fillgaps = false)
// Alerts for the first line only (as an example)
alertcondition(direction1[1] > direction1, title='Downtrend to Uptrend (Line 1)', message='Supertrend Line 1 switched from Downtrend to Uptrend')
alertcondition(direction1[1] < direction1, title='Uptrend to Downtrend (Line 1)', message='Supertrend Line 1 switched from Uptrend to Downtrend')
alertcondition(direction1[1] != direction1, title='Trend Change (Line 1)', message='Supertrend Line 1 switched trend')
// -------------------------------
// Strategy Logic
// -------------------------------
inDateRange = true
// Long Conditions
longEntryCondition = inDateRange and close > upperBand and direction1 < 0 and direction2 < 0 and direction3 < 0
longExitCondition = direction1 > 0 or direction2 > 0 or direction3 > 0
// Short Conditions
shortEntryCondition = inDateRange and close < lowerBand and direction1 > 0 and direction2 > 0 and direction3 > 0
shortExitCondition = direction1 < 0 or direction2 < 0 or direction3 < 0
// Execute Long Trades
if longEntryCondition and strategy.position_size <= 0
strategy.entry("Long", strategy.long)
if strategy.position_size > 0 and longExitCondition
strategy.close("Long")
// Execute Short Trades
if shortEntryCondition and strategy.position_size >= 0
strategy.entry("Short", strategy.short)
if strategy.position_size < 0 and shortExitCondition
strategy.close("Short")