该策略基于平均真实波幅(ATR)指标设定动态止损线,追踪股票价格变化,实现止损保护的同时最大限度锁定利润。
该策略主要通过以下步骤实现:
计算ATR指标,ATR周期由nATRPeriod参数设定,默认为5;
根据ATR值计算止损线,止损幅度由nATRMultip参数设定,默认为ATR的3.5倍;
当股价上涨时,如果高于此前止损线,则将止损线上调至股价减去止损幅度;当股价下跌时,如果低于此前止损线,则将止损线下调至股价加上止损幅度;
判断股价是否突破止损线,突破则发出买入或卖出信号;
根据突破止损线的信号,进入做多或空仓位,在再次触碰止损线时平仓。
在股价上涨时,止损线会不断上调,从而锁定利润;在股价下跌时,止损线会不断下调,从而止损。ATR指标能更准确反映股价波动程度,根据ATR动态调整止损线,可以避免止损过于激进或保守。
可通过参数优化,调整ATR周期参数和止损幅度,找到平衡止损和追踪的最佳参数组合。也可以结合其他技术指标过滤入市时机,减少不必要的止损。
该策略通过动态调整ATR止损线的方法,实现了持仓过程中的止损和利润锁定。相比固定止损位置,能更好适应股价波动情况,避免止损过于激进或保守。ATR指标使得止损线调整更具有针对性。但参数设置和再入场策略还需要进一步优化,以减少不必要止损并扩大获利空间。该策略整体来说是一个较好的动态追踪止损思路,值得进一步研究和应用。
/*backtest
start: 2023-09-08 00:00:00
end: 2023-10-08 00:00:00
period: 1h
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/
//@version=3
//@okadoke
////////////////////////////////////////////////////////////
// Based on Average True Range Trailing Stops Strategy by HPotter
// Average True Range Trailing Stops Strategy, by Sylvain Vervoort
// The related article is copyrighted material from Stocks & Commodities Jun 2009
////////////////////////////////////////////////////////////
strategy(title="ATR Trailing Stops Strategy", shorttitle="ATRTSS", overlay = true,
initial_capital=100000, default_qty_type = strategy.percent_of_equity, default_qty_value = 100, commission_type="percent", commission_value=0.0)
nATRPeriod = input(5, "ATR Period")
nATRMultip = input(3.5, "ATR Multiplier")
useShorts = input(false, "Test w/Shorts?")
daysBackMax = input(defval = 360, title = "Max Days Back to Test", minval = 0)
daysBackMin = input(defval = 0, title = "Min Days Back to Test", minval = 0)
msBackMax = 1000 * 60 * 60 * 24 * daysBackMax
msBackMin = 1000 * 60 * 60 * 24 * daysBackMin
xATR = atr(nATRPeriod)
nLoss = nATRMultip * xATR
xATRTrailingStop = na
xATRTrailingStop :=
iff(close > nz(xATRTrailingStop[1], 0) and close[1] > nz(xATRTrailingStop[1], 0), max(nz(xATRTrailingStop[1]), close - nLoss),
iff(close < nz(xATRTrailingStop[1], 0) and close[1] < nz(xATRTrailingStop[1], 0), min(nz(xATRTrailingStop[1]), close + nLoss),
iff(close > nz(xATRTrailingStop[1], 0), close - nLoss, close + nLoss)))
pos = na
pos :=
iff(close[1] < nz(xATRTrailingStop[1], 0) and close > nz(xATRTrailingStop[1], 0), 1,
iff(close[1] > nz(xATRTrailingStop[1], 0) and close < nz(xATRTrailingStop[1], 0), -1, nz(pos[1], 0)))
color = pos == -1 ? red: pos == 1 ? green : blue
plot(xATRTrailingStop, color=color, title="ATR Trailing Stop")
isWithinTimeBounds = (msBackMax == 0 or (time > (timenow - msBackMax))) and (msBackMin == 0 or (time < (timenow - msBackMin)))
buy = crossover(close, xATRTrailingStop)
sell = crossunder(close, xATRTrailingStop)
strategy.entry("LONG", long=true, when=buy and isWithinTimeBounds)
strategy.close("LONG", when=sell and isWithinTimeBounds)
strategy.entry("SHORT", long=false, when=useShorts and sell and isWithinTimeBounds)
strategy.close("SHORT", when=useShorts and buy and isWithinTimeBounds)