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RSI Divergence Trading Strategy

Author: ChaoZhang, Date: 2024-01-23 11:08:48
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Overview

The RSI divergence trading strategy captures mispricing opportunities by analyzing the divergence between the RSI indicator and price. It goes long or short when the divergence appears.

Strategy Logic

The strategy is based on the value-price divergence when RSI diverges from price. RSI reflects the strength while price reflects the supply-demand relationship. When the two diverge, it indicates market mispricing for arbitrage.

Specifically, a regular bullish divergence happens when RSI forms a higher low while price prints a lower low. This shows that although the market looks weak on the surface, it is actually garnering strength internally for a bounce. When RSI diverges from price and breaks above the 50-line, it presents an opportunity to catch the bounce.

A regular bearish divergence happens when RSI makes a lower high while price forms a higher high. This suggests that although the market looks strong externally, it is showing weakness signals internally. When RSI diverges from price and breaks below the 50-line, it allows profiting from the short side.

There are also hidden bullish and bearish divergences where the relationship between RSI and price is opposite of regular divergences, but the logic remains the same for taking profits.

Advantages

  1. Captures market mispricing from value-price divergence
  2. Improves win rate combining indicator and price divergence
  3. Covers more opportunities distinguishing all types of divergences

Risk Analysis

  1. Fake divergences can happen under special market conditions
  2. Breaking 50-line has relatively low success rate, can optimize
  3. Picking wrong direction could lead to big losses

Optimization Directions

  1. Optimize RSI parameters for higher accuracy
  2. Combine signals from other indicators to confirm divergences
  3. Assess risk-reward for longs and shorts to control per trade loss

Summary

The RSI divergence strategy arbitrages market mispricing through analyzing divergence between value and price signals. Its advantage lies in timely catching trend reversal opportunities, while its risk comes from the accuracy of divergence recognition. With continuous optimization, steady gains can be achieved in live trading.


/*backtest
start: 2024-01-15 00:00:00
end: 2024-01-22 00:00:00
period: 1m
basePeriod: 1m
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
*/

//@version=5
strategy(title="Divergence Indicator")
len = input.int(title="RSI Period", minval=1, defval=14)
src = input(title="RSI Source", defval=close)
lbR = input(title="Pivot Lookback Right", defval=5)
lbL = input(title="Pivot Lookback Left", defval=5)
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=true)
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 = ta.rsi(src, len)

plot(osc, title="RSI", linewidth=2, color=#2962FF)
hline(50, title="Middle Line", color=#787B86, linestyle=hline.style_dotted)
obLevel = hline(70, title="Overbought", color=#787B86, linestyle=hline.style_dotted)
osLevel = hline(30, title="Oversold", color=#787B86, linestyle=hline.style_dotted)
fill(obLevel, osLevel, title="Background", color=color.rgb(33, 150, 243, 90))

plFound = na(ta.pivotlow(osc, lbL, lbR)) ? false : true
phFound = na(ta.pivothigh(osc, lbL, lbR)) ? false : true
_inRange(cond) =>
	bars = ta.barssince(cond == true)
	rangeLower <= bars and bars <= rangeUpper

//------------------------------------------------------------------------------
// Regular Bullish
// Osc: Higher Low

oscHL = osc[lbR] > ta.valuewhen(plFound, osc[lbR], 1) and _inRange(plFound[1])

// Price: Lower Low

priceLL = low[lbR] < ta.valuewhen(plFound, low[lbR], 1) 
// bull : 상승 Condition : 조건
bullCond = plotBull and priceLL and oscHL and plFound // 상승다이버전스?
strategy.entry("상승 다이버전스 진입", strategy.long, when = bullCond)
strategy.close("상승 다이버전스 진입", when = ta.crossover(osc, 50)) 
plot(
     plFound ? osc[lbR] : na,
     offset=-lbR,
     title="Regular Bullish",
     linewidth=2,
     color=(bullCond ? bullColor : noneColor)
     )

plotshape(
	 bullCond ? osc[lbR] : na,
	 offset=-lbR,
	 title="Regular Bullish Label",
	 text=" Bull ",
	 style=shape.labelup,
	 location=location.absolute,
	 color=bullColor,
	 textcolor=textColor
	 )

//------------------------------------------------------------------------------
// Hidden Bullish
// Osc: Lower Low

oscLL = osc[lbR] < ta.valuewhen(plFound, osc[lbR], 1) and _inRange(plFound[1])

// Price: Higher Low

priceHL = low[lbR] > ta.valuewhen(plFound, low[lbR], 1)
hiddenBullCond = plotHiddenBull and priceHL and oscLL and plFound
// strategy.entry("히든 상승 다이버전스 진입", strategy.long, when = hiddenBullCond)
// strategy.close("히든 상승 다이버전스 진입", when = ta.crossover(osc, 50))
plot(
	 plFound ? osc[lbR] : na,
	 offset=-lbR,
	 title="Hidden Bullish",
	 linewidth=2,
	 color=(hiddenBullCond ? hiddenBullColor : noneColor)
	 )

plotshape(
	 hiddenBullCond ? osc[lbR] : na,
	 offset=-lbR,
	 title="Hidden Bullish Label",
	 text=" H Bull ",
	 style=shape.labelup,
	 location=location.absolute,
	 color=bullColor,
	 textcolor=textColor
	 )

//------------------------------------------------------------------------------
// Regular Bearish
// Osc: Lower High

oscLH = osc[lbR] < ta.valuewhen(phFound, osc[lbR], 1) and _inRange(phFound[1])

// Price: Higher High

priceHH = high[lbR] > ta.valuewhen(phFound, high[lbR], 1)
// bear : 하락 
bearCond = plotBear and priceHH and oscLH and phFound
// strategy.entry("하락 다이버전스 진입", strategy.short, when = bearCond)
// strategy.close("하락 다이버전스 진입", when = ta.crossunder(osc, 50)) 
plot(
	 phFound ? osc[lbR] : na,
	 offset=-lbR,
	 title="Regular Bearish",
	 linewidth=2,
	 color=(bearCond ? bearColor : noneColor)
	 )

plotshape(
	 bearCond ? osc[lbR] : na,
	 offset=-lbR,
	 title="Regular Bearish Label",
	 text=" Bear ",
	 style=shape.labeldown,
	 location=location.absolute,
	 color=bearColor,
	 textcolor=textColor
	 )

//------------------------------------------------------------------------------
// Hidden Bearish
// Osc: Higher High

oscHH = osc[lbR] > ta.valuewhen(phFound, osc[lbR], 1) and _inRange(phFound[1])

// Price: Lower High

priceLH = high[lbR] < ta.valuewhen(phFound, high[lbR], 1)

hiddenBearCond = plotHiddenBear and priceLH and oscHH and phFound
// strategy.entry("히든 하락 다이버전스 진입", strategy.short, when = hiddenBearCond)
// strategy.close("히든 하락 다이버전스 진입", when = ta.crossunder(osc, 50)) 
plot(
	 phFound ? osc[lbR] : na,
	 offset=-lbR,
	 title="Hidden Bearish",
	 linewidth=2,
	 color=(hiddenBearCond ? hiddenBearColor : noneColor)
	 )

plotshape(
	 hiddenBearCond ? osc[lbR] : na,
	 offset=-lbR,
	 title="Hidden Bearish Label",
	 text=" H Bear ",
	 style=shape.labeldown,
	 location=location.absolute,
	 color=bearColor,
	 textcolor=textColor
	 )

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