ChaoZhang
This strategy is named “Adaptive ATR Trailing Stop Loss Strategy”. It uses the ATR indicator to set stop loss levels, and switches from a tight stop to a loose stop after entry to follow trends while controlling risk.
The specific logic is:
Calculate the range of highest and lowest prices over a certain period as entry signal. Entries are triggered when prices break out of the range.
After entry, a tighter ATR stop is initially used, fixed at 1.5 times the ATR value, to limit post-entry loss.
During trade holding, the stop is switched to a looser 4 times ATR. The stop keeps trailing prices but allows more space for trends to extend.
The stop level always tracks the lowest price (long trade) or highest price (short trade) and adjusts with price fluctuations, achieving a trailing stop effect.
When price drops below stop level (long) or rises above it (short), the stop loss is triggered.
The advantage of this strategy is using an adaptive stop loss mechanism to ensure risk control while avoiding premature stop outs. But ATR parameters and multiples need optimization, and stops should be used with trend analysis.
In conclusion, dynamic trailing stops are important means to improve profitability. Flexible stop loss application can better maintain trend profits and control risks.
/*backtest
start: 2023-08-13 00:00:00
end: 2023-09-12 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/
//@version=4
//@author=Takazudo
strategy("ATR trailing SL tight to slack [Takazudo]",
overlay=true,
default_qty_type=strategy.fixed,
initial_capital=0,
currency=currency.USD)
posSize = strategy.position_size
hasNoPos = posSize == 0
hasLongPos = posSize > 0
hasShortPos = posSize < 0
//============================================================================
// consts, inputs
//============================================================================
// colors
var COLOR_SL_LINE = color.new(#e0f64d, 20)
var COLOR_SL_LINE_THIN = color.new(#e0f64d, 90)
var COLOR_ENTRY_BAND = color.new(#43A6F5, 30)
var COLOR_TRANSPARENT = color.new(#000000, 100)
// Entry strategy
_g1 = 'Entry strategy'
var config_entryBandBars = input(defval = 100, title = "Entry band bar count", minval=1, group=_g1)
_g2 = 'ATR SL'
var config_slAtr_length = input(24, title = "Trailing stop ATR Length", group=_g2)
var config_slAtr_multi1 = input(1.5, title = "Trailing stop ATR Multiple on tight", type=input.float, step=0.1, group=_g2)
var config_slAtr_multi2 = input(4, title = "Trailing stop ATR Multiple on slack", type=input.float, step=0.1, group=_g2)
_g3 = 'Backtesting range'
var config_fromYear = input(defval = 2016, title = "From Year", minval = 1970, group=_g3)
var config_fromMonth = input(defval = 1, title = "From Month", minval = 1, maxval = 12, group=_g3)
var config_fromDay = input(defval = 1, title = "From Day", minval = 1, maxval = 31, group=_g3)
var config_toYear = input(defval = 2021, title = "To Year", minval = 1970, group=_g3)
var config_toMonth = input(defval = 4, title = "To Month", minval = 1, maxval = 12, group=_g3)
var config_toDay = input(defval = 5, title = "To Day", minval = 1, maxval = 31, group=_g3)
//============================================================================
// Range Edge calculation
//============================================================================
f_calcEntryBand_high() =>
_highest = max(open[3], close[3])
for i = 4 to (config_entryBandBars - 1)
_highest := max(_highest, open[i], close[i])
_highest
f_calcEntryBand_low() =>
_lowest = min(open[3], close[3])
for i = 4 to (config_entryBandBars - 1)
_lowest := min(_lowest, open[i], close[i])
_lowest
entryBand_high = f_calcEntryBand_high()
entryBand_low = f_calcEntryBand_low()
entryBand_height = entryBand_high - entryBand_low
plot(entryBand_high, color=COLOR_ENTRY_BAND, linewidth=1)
plot(entryBand_low, color=COLOR_ENTRY_BAND, linewidth=1)
rangeBreakDetected_long = entryBand_high < close
rangeBreakDetected_short = entryBand_low > close
shouldMakeEntryLong = (strategy.position_size == 0) and rangeBreakDetected_long
shouldMakeEntryShort = (strategy.position_size == 0) and rangeBreakDetected_short
//============================================================================
// ATR based stuff
//============================================================================
sl_atrHeight_tight = atr(config_slAtr_length) * config_slAtr_multi1
sl_atrHeight_slack = atr(config_slAtr_length) * config_slAtr_multi2
sl_tight_bull = min(open, close) - sl_atrHeight_tight
sl_tight_bear = max(open, close) + sl_atrHeight_tight
sl_slack_bull = min(open, close) - sl_atrHeight_slack
sl_slack_bear = max(open, close) + sl_atrHeight_slack
plot(sl_tight_bull, color=COLOR_SL_LINE_THIN, transp=0, linewidth=1)
plot(sl_tight_bear, color=COLOR_SL_LINE_THIN, transp=0, linewidth=1)
plot(sl_slack_bull, color=COLOR_SL_LINE_THIN, transp=0, linewidth=1)
plot(sl_slack_bear, color=COLOR_SL_LINE_THIN, transp=0, linewidth=1)
//============================================================================
// Sl
//============================================================================
var trailingSl_long = hl2
var trailingSl_short = hl2
trailingSl_long := if hasLongPos
max(trailingSl_long, sl_slack_bull)
else
sl_tight_bull
trailingSl_short := if hasShortPos
min(trailingSl_short, sl_slack_bear)
else
sl_tight_bear
color_sl_long = hasLongPos ? COLOR_SL_LINE : COLOR_TRANSPARENT
color_sl_short = hasShortPos ? COLOR_SL_LINE : COLOR_TRANSPARENT
plot(trailingSl_long, color=color_sl_long, transp=0, linewidth=2)
plot(trailingSl_short, color=color_sl_short, transp=0, linewidth=2)
//============================================================================
// make entries
//============================================================================
// Calculate start/end date and time condition
startDate = timestamp(config_fromYear, config_fromMonth, config_fromDay, 00, 00)
finishDate = timestamp(config_toYear, config_toMonth, config_toDay, 00, 00)
if (true)
if shouldMakeEntryLong
strategy.entry(id="Long", long=true, stop=close)
if shouldMakeEntryShort
strategy.entry(id="Short", long=false, stop=close)
strategy.exit('Long-SL/TP', 'Long', stop=trailingSl_long)
strategy.exit('Short-SL/TP', 'Short', stop=trailingSl_short)