本策略通过判断价格对布林带通道的突破情况进行交易。该策略属于通道突破类策略的一种,旨在捕捉价格突破通道形成的趋势交易机会。
策略原理:
计算布林带通道,中轨为n日简单移动均线,上下轨为中轨之上下若干倍标准差。
当价格从上向下突破下轨时,进行短仓入场。当价格从下向上突破上轨时,进行多仓入场。
设置止损线为相反方向轨线之外,进行风险控制。
根据最大回撤情况调整通道带宽,优化参数。
结合交易量过滤判断,避免虚假突破。
该策略的优势:
突破通道可有效判断趋势转折点。
布林带参数优化简单实际,不易过优化。
结合交易量可过滤假突破,提高质量。
该策略的风险:
布林带滞后问题较突出,可能错过最佳入场点。
突破后容易出现反转,须设置合理止损。
优化中追求低频交易可能错失机会。
总之,该策略通过判断布林带的突破情况进行交易,是一种典型的通道突破策略。Relative 简单的规则有利于参数优化,但滞后及止损设置问题仍需警惕,始能获得长期稳定收益。
/*backtest
start: 2023-08-12 00:00:00
end: 2023-09-11 00:00:00
period: 2h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/
//@version=2
// strategy("ChannelBreakOutStrategyV2.1", commission_type = "percent", commission_value = 0.1, calc_on_order_fills = true, overlay=true)
length = input(title="Length", minval=1, maxval=1000, defval=40)
maxR = input(title = "R", minval = 1.0, maxval = 10, defval = 3, step = 0.1)
adoptR = input(title = "Auto Adjust R", defval = false)
stepR = input(title = "Step in R", minval = 0.01, maxval = 0.1, step = 0.01, defval = 0.02)
baseYear = input(title = "Base Year", minval = 2000, maxval = 2016, defval = 2000)
volumeTh = input(title = "Volume Threadhold", minval = 100.0, maxval = 200, defval = 120, step = 5)
hasLong = input(title = "Include Long", defval = true)
hasShort = input(title = "Include Short", defval = true)
usePositionSizing = input(title = "Enable Position Sizing", defval = true)
getTrailStop(val, current) =>
s = val > 1.6 ? 0.8 : val >= 1.4 ? 0.85 : val >= 1.3 ? 0.9 : 0.93
s * current
upBound = highest(high, length)
downBound = lowest(low, length)
hasVol = (volume / sma(volume, length) * 100 >= volumeTh) ? 1 : 0
hasPos = strategy.position_size != 0 ? 1 : 0
trailstop = atr(length) * 3
ptvalue = syminfo.pointvalue
equity = strategy.openprofit > 0 ? strategy.equity - strategy.openprofit : strategy.equity
curR = adoptR == false ? maxR : n == 0 ? maxR : hasPos == 1 ? curR[1] : (rising(equity,1) > 0? curR[1] + stepR : falling(equity, 1) > 0 ? curR[1] <= 2.0 ? 2.0 : curR[1] - stepR : curR[1])
contracts = usePositionSizing == false ? 20 : floor(equity / 100 * curR / (trailstop * ptvalue))
realbuystop = close - trailstop
realsellstop = close + trailstop
isPFst = (hasPos[1] == 0 and hasPos == 1) ? 1 : 0
isPOn = (hasPos[1] + hasPos == 2) ? 1 : 0
largestR = hasPos == 0 or isPFst == 1 ? -1 : nz(largestR[1]) < close ? close : largestR[1]
pctRise = largestR / strategy.position_avg_price
rbs = strategy.position_size <= 0 ? realbuystop : isPFst ? strategy.position_avg_price - trailstop : pctRise >= 1.3 ? getTrailStop(pctRise, largestR) : (isPOn and realbuystop > rbs[1] and close > close[1]) ? realbuystop : rbs[1]
rss = strategy.position_size >= 0 ? realsellstop : isPFst ? strategy.position_avg_price + trailstop : (isPOn and realsellstop < rss[1] and close < close[1]) ? realsellstop : rss[1]
isStart = na(rbs) or na(rss) ? 0 : 1
buyARun = close - open > 0 ? 0 : open - close
sellARun = open - close > 0 ? 0 : close - open
if (strategy.position_size > 0 and buyARun >= trailstop / 3 * 2 and pctRise < 1.3)
strategy.close("buy")
strategy.cancel("exit")
if (strategy.position_size < 0 and sellARun >= trailstop / 3 * 2)
strategy.close("sell")
strategy.cancel("exit")
strategy.cancel("buy")
strategy.cancel("sell")
conLong = hasLong == true and hasPos == 0 and year > baseYear and (isStart + hasVol) == 2
strategy.order("buy", strategy.long, qty = contracts, stop=upBound + syminfo.mintick * 5, comment="BUY", when = conLong)
if (rbs > high)
strategy.close("buy")
strategy.exit("exit", "buy", stop = rbs, when = hasPos == 1 and isStart == 1)
conShort = hasShort == true and hasPos == 0 and year > baseYear and (isStart + hasVol) == 2
strategy.order("sell", strategy.short, qty = contracts, stop=downBound - syminfo.mintick * 5, comment="SELL", when = conShort)
if (rss < low)
strategy.close("sell")
strategy.exit("exit", "sell", stop = rss, when = hasPos == 1 and isStart == 1)
plot(series = rbs, color=blue)
plot(series = realbuystop, color=green)
plot(series = rss, color=red)
plot(series = realsellstop, color=yellow)