This article explains in detail a trend trading strategy that utilizes dynamic support and resistance levels. It sets flexible support and resistance zones using multiple indicators to capture price trends.
I. Strategy Logic
The main components of the strategy include:
Calculating highest high and lowest low over a certain period to define dynamic trading ranges.
Computing ATR indicator and setting upper/lower bands as dynamic stop loss zones.
Drawing dynamic support/resistance at fixed slopes when price breaks out of the trading range.
Generating trade signals when price breaks through dynamic support/resistance levels.
By synthesizing dynamic support/resistance zones using various indicators, trades are only taken on breakouts to filter out unnecessary noise. The stop loss zones also adjust dynamically to market changes.
II. Advantages of the Strategy
The biggest advantage lies in the dynamic zones formed by multiple indicators, which can nimbly detect trend changes.
Another benefit is the banded stop loss zones, which reduce the probability of stops being hit.
Finally, the sloped support/resistance is simple and straightforward to implement.
III. Potential Risks
However, the following potential risks should also be considered:
Firstly, the dynamic levels may lag price moves and become invalidated.
Secondly, stop loss zones set too wide may lead to large losses.
Lastly, improper parameter tuning could lead to poor strategy performance.
IV. Summary
In summary, this article has explained a trend following strategy using multiple dynamic indicators to identify support and resistance zones. It can effectively filter out noise and detect trends. But risks like indicator lagging and overwide stops should be prevented. Overall, it provides a reasonable approach to utilize dynamic support and resistance.
/*backtest
start: 2023-08-14 00:00:00
end: 2023-09-13 00:00:00
period: 2h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/
// This is a strategy that draws a trend line in the form of a slope whenever the high point and low point are updated.
// The upper slope serves as a resistance line, and the lower slope serves as a support line.
// Buy when the [close] of the candle crosses the slope
//@version=5
strategy("Donchian Trendline - Support Resistance Slope [UhoKang]", shorttitle="Donchian Trendline", overlay=true, initial_capital=1000000,default_qty_type=strategy.percent_of_equity,default_qty_value=100,commission_value=0.075, slippage=3, process_orders_on_close=true)
///////////////////////////////////// Time ///////////////////////////////////////////////////////////////////////////////
startYear = input.int(2019, 'Start-Year', confirm=false, inline='1')
startMonth = input.int(1, 'Month', confirm=false, inline='1')
startDay = input.int(1, 'Day', confirm=false, inline='1')
finishYear = input.int(2099, 'End-Year', confirm=false, inline='2')
finishMonth = input.int(1, 'Month', confirm=false, inline='2')
finishDay = input.int(1, 'Day', confirm=false, inline='2')
startTime = timestamp(startYear, startMonth, startDay)
finishTime = timestamp(finishYear, finishMonth, finishDay)
testPeriod = true
//////////////////////// ATR BAND ///////////////////////////////////////////////////////////////////////////////////////////
// Inputs
atrPeriod = input.int(title = "ATR Period", defval = 14, minval = 1)
atrBandUpper = input(title = "Source Upper", defval = close)
atrBandLower = input(title = "Source Lower", defval = close)
atrMultiplierUpper = input.int(title = "ATR Multiplier Upper", defval = 1)
atrMultiplierLower = input.int(title = "ATR Multiplier Lower", defval = 1)
// ATR ///////////////////////////////////////////////////////////////////////////////
//------------------------------------------------------------------------------------
atr = ta.atr(atrPeriod)
atrBBUpper = atrBandUpper + (atr * atrMultiplierUpper)
atrBBLower = atrBandLower - (atr * atrMultiplierLower)
/////////////////////////// Big Candle ///////////////////////////////////////////////
//------------------------------------------------------------------------------------
candle_size = close>=open ? close-open : open-close
candle_grade_guide = atrBBUpper - atrBBLower
candle_grade = candle_size > candle_grade_guide ? 3 : candle_size > candle_grade_guide/2 ? 2 : 1
candle_grade_color = candle_grade == 3 ? color.new(color.black, 0) : candle_grade == 2 ? color.new(color.purple, 0) : na
barcolor(candle_grade_color, title = "Long candle")
///////////////////////////////////// Donchian ///////////////////////////////////////
//------------------------------------------------------------------------------------
donchian_length = input(60)
donchian_top = ta.highest(high, donchian_length)
donchian_bot = ta.lowest(low, donchian_length)
donchian_mid = (donchian_top + donchian_bot) / 2
plot_donchian_top = plot(donchian_top, color=color.new(color.green, 90), title = "Donchian Top")
plot_donchian_bot = plot(donchian_bot, color=color.new(color.red, 90), title = "Donchian Bottom")
plot_donchian_mid = plot(donchian_mid, color=color.new(color.orange, 0), title = "Donchian Middle")
fill(plot_donchian_top, plot_donchian_mid, color=color.new(color.green, 95), title = "Donchian Upper")
fill(plot_donchian_bot, plot_donchian_mid, color=color.new(color.red, 95), title = "Donchian Lower")
///////////////////////////// Trendline //////////////////////////////////////////////////
//------------------------------------------------------------------------------------
donchian_longTr = false
donchian_shortTr = false
var atrLongHeight = 0.0
var atrShortHeight = 0.0
if high > donchian_top[1]
donchian_longTr := true
atrLongHeight := atrBBUpper[1] - atrBBLower[1]
if low < donchian_bot[1]
donchian_shortTr := true
atrShortHeight := atrBBUpper[1] - atrBBLower[1]
donchian_Tr_color = donchian_longTr ? color.new(color.green,70) : donchian_shortTr ? color.new(color.red, 70) : na
//////////////////////// Set var //////////////////////////////////////////////
//------------------------------------------------------------------------------------
slope_mult = input.float(0.03, step=0.01, title = "Slope x")
var ph_M_Avg = 0.0 //slope avg high
var pl_M_Avg = 0.0 //slope avg low
var ph_M_Line = 0.0 //slope high
var pl_M_Line = 0.0 //slope low
ph_M = donchian_longTr[1]==true and high<donchian_top[1] ? high[1] : na
pl_M = donchian_shortTr[1]==true and low>donchian_bot[1] ? low[1] : na
plot(ph_M,color=color.blue, style = plot.style_linebr, linewidth = 3, offset = -1, title = "Pivot High")
plot(pl_M,color=color.blue, style = plot.style_linebr, linewidth = 3, offset = -1, title = "Pivot Low")
///////////////////////////////////////// Calc trendline /////////////////////////////
//------------------------------------------------------------------------------------
mirror_mode = input.bool(false , title = "Mirror Line")
ph_M_Avg := atrLongHeight * slope_mult
pl_M_Avg := atrShortHeight * slope_mult
// Calc slope
if mirror_mode
if ph_M
ph_M_Line := ph_M
pl_M_Line := donchian_mid[1]
else if pl_M
pl_M_Line := pl_M
ph_M_Line := donchian_mid[1]
else if ph_M_Line
ph_M_Line := ph_M_Line[1] - ph_M_Avg
pl_M_Line := pl_M_Line[1] + pl_M_Avg
else
if ph_M
ph_M_Line := ph_M
else if ph_M_Line
ph_M_Line := ph_M_Line[1] - ph_M_Avg
if pl_M
pl_M_Line := pl_M
else if pl_M_Line
pl_M_Line := pl_M_Line[1] + pl_M_Avg
// Delete trendline
if donchian_bot[1] > ph_M_Line
ph_M_Line := na
if donchian_top[1] < pl_M_Line
pl_M_Line := na
// Draw trendline
plot(ph_M_Line, color=color.new(color.green,20), style = plot.style_circles, linewidth = 1, title = "Trendline Top")
plot(pl_M_Line, color=color.new(color.maroon,20), style = plot.style_circles, linewidth = 1, title = "Trendline Bottom")
// Trade
ph_longTr = false
ph_longExitTr = false
ph_shortTr = false
ph_shortExitTr = false
//-----------------------------------------------------------------------------}
check_short_mode = input.bool(true, title= "Short Mode On")
if ta.crossover(close, ph_M_Line)
ph_longTr := true
else if ta.crossunder(close,pl_M_Line) or ta.crossunder(close, donchian_mid[1])
ph_longExitTr := true
if ta.crossunder(close, pl_M_Line)
ph_shortTr := true
else if ta.crossover(close,ph_M_Line) or ta.crossover(close, donchian_mid[1])
ph_shortExitTr := true
ph_Tr_color = ph_longTr ? color.new(color.green,80) : ph_shortTr ? color.new(color.red,80) : na
bgcolor(ph_Tr_color, title = "Break Slope")
if ph_longTr and testPeriod
strategy.entry("L", strategy.long)
else if ph_longExitTr
strategy.close("L")
if ph_shortTr and testPeriod and check_short_mode
strategy.entry("S", strategy.short)
else if ph_shortExitTr
strategy.close("S")