Esta estratégia utiliza os trilhos superiores e inferiores das Bandas de Bollinger para implementar o stop loss dinâmico. Vai curto quando o preço atravessa o trilho superior e vai longo quando o preço atravessa o trilho inferior. E define o stop loss dinâmico para rastrear o movimento do preço.
O núcleo desta estratégia está nos trilhos superior e inferior das Bandas de Bollinger. O trilho do meio é a média móvel de n dias. O trilho superior é o trilho do meio + kdesvio padrão de n dias. O trilho inferior é o trilho do meio − kQuando o preço salta do trilho inferior, vá longo. Quando o preço cai de volta do trilho superior, vá curto. Ao mesmo tempo, a estratégia define um ponto de stop loss e o ajusta dinamicamente durante o movimento do preço para definir um ponto de lucro para implementar um controle de risco prudente.
Esta estratégia utiliza os atributos de regressão de Bollinger Bands
/*backtest start: 2024-01-24 00:00:00 end: 2024-01-31 00:00:00 period: 30m basePeriod: 15m exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}] */ //@version=5 strategy(shorttitle="BB Strategy", title="Bollinger Bands Strategy", overlay=true) length = input.int(20, minval=1, group = "Bollinger Bands") maType = input.string("SMA", "Basis MA Type", options = ["SMA", "EMA", "SMMA (RMA)", "WMA", "VWMA"], group = "Bollinger Bands") src = input(close, title="Source", group = "Bollinger Bands") mult = input.float(2.0, minval=0.001, maxval=50, title="StdDev", group = "Bollinger Bands") ma(source, length, _type) => switch _type "SMA" => ta.sma(source, length) "EMA" => ta.ema(source, length) "SMMA (RMA)" => ta.rma(source, length) "WMA" => ta.wma(source, length) "VWMA" => ta.vwma(source, length) basis = ma(src, length, maType) dev = mult * ta.stdev(src, length) upper = basis + dev lower = basis - dev offset = input.int(0, "Offset", minval = -500, maxval = 500, group = "Bollinger Bands") plot(basis, "Basis", color=#FF6D00, offset = offset) p1 = plot(upper, "Upper", color=#2962FF, offset = offset) p2 = plot(lower, "Lower", color=#2962FF, offset = offset) fill(p1, p2, title = "Background", color=color.rgb(33, 150, 243, 95)) lo = input.bool(true, "Long", group = "Strategy") sh = input.bool(true, "Short", group = "Strategy") x = input.float(3.0, "Target Multiplier (X)", group = "Strategy", minval = 1.0, step = 0.1) token = input.string(defval = "", title = "Token", group = "AUTOMATION") Buy_CE = '{"auth-token":"' + token + '","key":"Value1","value":"' + str.tostring(1) + '"}' Buy_PE = '{"auth-token":"' + token + '","key":"Value1","value":"' + str.tostring(2) + '"}' Exit_CE = '{"auth-token":"' + token + '","key":"Value1","value":"' + str.tostring(-1) + '"}' Exit_PE = '{"auth-token":"' + token + '","key":"Value1","value":"' + str.tostring(-2) + '"}' Exit_PE_CE = '{"auth-token":"' + token + '","key":"Value1","value":"' + str.tostring(2.5) + '"}' Exit_CE_PE = '{"auth-token":"' + token + '","key":"Value1","value":"' + str.tostring(1.5) + '"}' long = high < lower short = low > upper var sl_b = 0.0 var tar_b = 0.0 var sl_s = 0.0 var tar_s = 0.0 var static_sl = 0.0 entry = strategy.opentrades.entry_price(strategy.opentrades - 1) if long and lo and strategy.position_size == 0 strategy.entry("Long", strategy.long, alert_message = Buy_CE, stop = high) strategy.exit("LX", "Long", profit = (math.abs(high - low) * x)/syminfo.mintick, stop = low, alert_message = Exit_CE) sl_b := low tar_b := high + (math.abs(high - low) * x) static_sl := math.abs(low - high) if short and sh and strategy.position_size == 0 strategy.entry("Short", strategy.short, alert_message = Buy_PE, stop = low) strategy.exit("SX", "Short", profit = (math.abs(high - low) * x)/syminfo.mintick, stop = high, alert_message = Exit_PE) sl_s := high tar_s := low - (math.abs(high - low) * x) static_sl := math.abs(high - low) // if long and strategy.position_size < 0 // strategy.entry("Long", strategy.long, alert_message = Exit_PE_CE, stop = high) // strategy.exit("LX", "Long", profit = (math.abs(high - low) * x)/syminfo.mintick, stop = low, alert_message = Exit_CE) // sl_b := low // tar_b := high + (math.abs(high - low) * x) // if short and strategy.position_size > 0 // strategy.entry("Short", strategy.short, alert_message = Exit_CE_PE, stop = low) // strategy.exit("SX", "Short", profit = (math.abs(high - low) * x)/syminfo.mintick, stop = high, alert_message = Exit_PE) // sl_s := math.max(high[1], high) // tar_s := low - (math.abs(high - low) * x) if ta.change(dayofmonth) or (long[1] and not long[2]) strategy.cancel("Long") if ta.change(dayofmonth) or (short[1] and not short[2]) strategy.cancel("Short") var count = 1 if strategy.position_size != 0 if strategy.position_size > 0 if close > (entry + (static_sl * count)) strategy.exit("LX", "Long", limit = tar_b, stop = sl_b, alert_message = Exit_CE) sl_b := entry + (static_sl * (count - 1)) count += 1 else if close < (entry - (static_sl * count)) strategy.exit("SX", "Short", limit = tar_s, stop = sl_s, alert_message = Exit_PE) sl_s := entry - (static_sl * (count - 1)) count += 1 // label.new(bar_index, high, str.tostring(static_sl)) if strategy.position_size == 0 count := 1 plot(strategy.position_size > 0 ? sl_b : na, "", color.red, style = plot.style_linebr) plot(strategy.position_size < 0 ? sl_s : na, "", color.red, style = plot.style_linebr) plot(strategy.position_size > 0 ? tar_b : na, "", color.green, style = plot.style_linebr) plot(strategy.position_size < 0 ? tar_s : na, "", color.green, style = plot.style_linebr)