ChaoZhang
概述
该策略通过计算RSI指标及其EMA均线的交叉情况来判断多空,并结合RSI与价格的背离来寻找潜在买卖点,属于趋势跟踪策略。
策略原理
计算长度为14的RSI指标,当RSI上穿50分界线时为看多信号,下穿为看空信号。
计算RSI的20周期EMA均线及14周期EMA均线,当快线上穿慢线时为买入信号,下穿为卖出信号。
检测RSI与价格的背离情况:
多头背离:价格创新低但RSI没有创新低,为买入信号
隐藏多头背离:价格创新高但RSI没有创新高,为买入信号
空头背离:价格创新高但RSI没有创新高,为卖出信号
隐藏空头背离:价格创新低但RSI没有创新低,为卖出信号
可选择开启止损策略,包括百分比止损和ATR止损。
优势分析
RSI指标的优势在于可检测超买超卖情况。EMA均线的优势在于可发挥平滑作用,滤波掉部分噪音。
RSI与价格背离可在趋势反转前给出提前信号。
整合两种指标信号,可以互相验证,提高策略稳定性。
止损机制可控制单笔损失。
风险分析
RSI作为一个随价格波动的指数指标,当价格出现剧烈波动时,RSI指标的效用会打折扣。
EMA均线存在时间滞后问题,不能准确定位转折点。
背离信号可能出现假信号,价格继续原趋势运行的情况。
止损点设置不合理可能造成不必要的止损。
回撤可能较大,需要充足的资金支持。
优化方向
可以测试不同参数对RSI及EMA的计算,寻找最佳参数组合。
可以考虑用MACD等其他指标替换EMA均线,进行组合优化。
可以设置确认机制,避免出现假背离。如需连续多个背离信号触发。
增加止盈策略,以锁定利润。
可以基于candlestick模式等短期信号进行入场,配合本策略的趋势判断。
总结
该策略整合了RSI指标的超买超卖判断、EMA的趋势判断和背离信号的预测,形成了一套较为完整的趋势跟踪体系。在参数调整和组合优化的基础上,可以获得较好的策略效果。但仍需要注意防范趋势市的冲击和假信号的干扰。通过严格的资金管理,该策略可以在中长线上获得稳定的超额收益。
策略源码
/*backtest
start: 2023-11-08 00:00:00
end: 2023-11-15 00:00:00
period: 30m
basePeriod: 15m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/
//@version=4
strategy(title="RSI Divergence Indicator", overlay=false,pyramiding=2, default_qty_value=2, default_qty_type=strategy.fixed, initial_capital=10000, currency=currency.USD)
len = input(title="RSI Period", minval=1, defval=14)
src = input(title="RSI Source", defval=close)
lbR = input(title="Pivot Lookback Right", defval=3)
lbL = input(title="Pivot Lookback Left", defval=1)
takeProfitRSILevel = input(title="Take Profit at RSI Level", minval=70, defval=80)
rangeUpper = input(title="Max of Lookback Range", defval=60)
rangeLower = input(title="Min of Lookback Range", defval=5)
plotBull = input(title="Plot Bullish", defval=true)
plotHiddenBull = input(title="Plot Hidden Bullish", defval=true)
plotBear = input(title="Plot Bearish", defval=true)
plotHiddenBear = input(title="Plot Hidden Bearish", defval=false)
sl_type = input("NONE", title="Trailing StopLoss Type", options=['ATR','PERC', 'NONE'])
stopLoss = input(title="Stop Loss%", defval=5, minval=1)
atrLength=input(14, title="ATR Length (for Trailing stop loss)")
atrMultiplier=input(3.5, title="ATR Multiplier (for Trailing stop loss)")
bearColor = color.red
bullColor = color.green
hiddenBullColor = color.new(color.green, 80)
hiddenBearColor = color.new(color.red, 80)
textColor = color.white
noneColor = color.new(color.white, 100)
osc = rsi(src, len)
plot(osc, title="RSI", linewidth=2, color=color.white)
hline(50, title="Middle Line", linestyle=hline.style_dotted)
obLevel = hline(70, title="Overbought", linestyle=hline.style_dotted)
osLevel = hline(30, title="Oversold", linestyle=hline.style_dotted)
fill(obLevel, osLevel, title="Background", color=color.gray, transp=90)
plFound = na(pivotlow(osc, lbL, lbR)) ? false : true
phFound = na(pivothigh(osc, lbL, lbR)) ? false : true
_inRange(cond) =>
bars = barssince(cond == true)
rangeLower <= bars and bars <= rangeUpper
//------------------------------------------------------------------------------
// Regular Bullish
// Osc: Higher Low
oscHL = osc[lbR] > valuewhen(plFound, osc[lbR], 1) and _inRange(plFound[1])
// Price: Lower Low
priceLL = low[lbR] < valuewhen(plFound, low[lbR], 1)
bullCond = plotBull and priceLL and oscHL and plFound
plot(
plFound ? osc[lbR] : na,
offset=-lbR,
title="Regular Bullish",
linewidth=2,
color=(bullCond ? bullColor : noneColor),
transp=0
)
plotshape(
bullCond ? osc[lbR] : na,
offset=-lbR,
title="Regular Bullish Label",
text=" Bull ",
style=shape.labelup,
location=location.absolute,
color=bullColor,
textcolor=textColor,
transp=0
)
//------------------------------------------------------------------------------
// Hidden Bullish
// Osc: Lower Low
oscLL = osc[lbR] < valuewhen(plFound, osc[lbR], 1) and _inRange(plFound[1])
// Price: Higher Low
priceHL = low[lbR] > valuewhen(plFound, low[lbR], 1)
hiddenBullCond = plotHiddenBull and priceHL and oscLL and plFound
plot(
plFound ? osc[lbR] : na,
offset=-lbR,
title="Hidden Bullish",
linewidth=2,
color=(hiddenBullCond ? hiddenBullColor : noneColor),
transp=0
)
plotshape(
hiddenBullCond ? osc[lbR] : na,
offset=-lbR,
title="Hidden Bullish Label",
text=" H Bull ",
style=shape.labelup,
location=location.absolute,
color=bullColor,
textcolor=textColor,
transp=0
)
longCondition=bullCond or hiddenBullCond
//? osc[lbR] : na
//hiddenBullCond
strategy.entry(id="RSIDivLE", long=true, when=longCondition)
//Trailing StopLoss
////// Calculate trailing SL
/////////////////////////////////////////////////////
sl_val = sl_type == "ATR" ? stopLoss * atr(atrLength) :
sl_type == "PERC" ? close * stopLoss / 100 : 0.00
trailing_sl = 0.0
trailing_sl := strategy.position_size>=1 ? max(low - sl_val, nz(trailing_sl[1])) : na
//draw initil stop loss
//plot(strategy.position_size>=1 ? trailing_sl : na, color = color.blue , style=plot.style_linebr, linewidth = 2, title = "stop loss")
//plot(trailing_sl, title="ATR Trailing Stop Loss", style=plot.style_linebr, linewidth=1, color=color.purple, transp=30)
//Trailing StopLoss
////// Calculate trailing SL
/////////////////////////////////////////////////////
//------------------------------------------------------------------------------
// Regular Bearish
// Osc: Lower High
oscLH = osc[lbR] < valuewhen(phFound, osc[lbR], 1) and _inRange(phFound[1])
// Price: Higher High
priceHH = high[lbR] > valuewhen(phFound, high[lbR], 1)
bearCond = plotBear and priceHH and oscLH and phFound
plot(
phFound ? osc[lbR] : na,
offset=-lbR,
title="Regular Bearish",
linewidth=2,
color=(bearCond ? bearColor : noneColor),
transp=0
)
plotshape(
bearCond ? osc[lbR] : na,
offset=-lbR,
title="Regular Bearish Label",
text=" Bear ",
style=shape.labeldown,
location=location.absolute,
color=bearColor,
textcolor=textColor,
transp=0
)
//------------------------------------------------------------------------------
// Hidden Bearish
// Osc: Higher High
oscHH = osc[lbR] > valuewhen(phFound, osc[lbR], 1) and _inRange(phFound[1])
// Price: Lower High
priceLH = high[lbR] < valuewhen(phFound, high[lbR], 1)
hiddenBearCond = plotHiddenBear and priceLH and oscHH and phFound
plot(
phFound ? osc[lbR] : na,
offset=-lbR,
title="Hidden Bearish",
linewidth=2,
color=(hiddenBearCond ? hiddenBearColor : noneColor),
transp=0
)
plotshape(
hiddenBearCond ? osc[lbR] : na,
offset=-lbR,
title="Hidden Bearish Label",
text=" H Bear ",
style=shape.labeldown,
location=location.absolute,
color=bearColor,
textcolor=textColor,
transp=0
)
longCloseCondition=crossover(osc,takeProfitRSILevel) or bearCond
strategy.close(id="RSIDivLE", comment="Close All="+tostring(close - strategy.position_avg_price, "####.##"), when= abs(strategy.position_size)>=1 and sl_type == "NONE" and longCloseCondition)
//close all on stop loss
strategy.close(id="RSIDivLE", comment="TSL="+tostring(close - strategy.position_avg_price, "####.##"), when=abs(strategy.position_size)>=1 and (sl_type == "PERC" or sl_type == "ATR" ) and crossunder(close, trailing_sl) ) //close<ema55 and rsi5Val<20 //ema34<ema55 //close<ema89
src1 = close,
len6 = input(14, minval=1, title="RSI Length")
len7 = input(20, minval=1, title="EMA of RSI Length")
len8 = input(14,minval=1, title="Fast EMA")
up = rma(max(change(src1), 0), len6)
down = rma(-min(change(src1), 0), len6)
rsi = down == 0 ? 100 : up == 0 ? 0 : 100 - (100 / (1 + up / down))
emaRSI = ema(rsi,len7)
fastEmaRSI=ema(rsi,len8)
plot(emaRSI, title="EMA of RSI", linewidth=1, color=color.red)
plot(fastEmaRSI,title="Fast EMA of RSI", linewidth=1,color = color.lime)
band1 = hline(80, title="Upper Line", linewidth=1, color=color.red)
band0 = hline(20, title="Lower Line", linewidth=1, color=color.lime)
fill(band1, band0, color=color.purple)
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