High Low Bollinger Bands — Indicator by SpreadEagle71

Better than Bollinger Bands for finding extreme points timed by an oscillator where the price is statistically likely to stay inside the boundaries.
Good for setting credit spreads such as call and put vertical spreads.

Open-source script

In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules. You can favorite it to use it on a chart.

Disclaimer

The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.

Want to use this script on a chart?

study(shorttitle="HL BB", title="High Low Bollinger Bands", overlay=true)
length = input(20, minval=1)
src = input(low, title="Source")
src2 = input(high, title="Source2")
mult = input(3.0, minval=0.001, maxval=50)
mult2 = input(3.0, minval=0.001, maxval=50)
basis = sma(src, length)
basis2 = sma(src2, length)
dev = mult * stdev(src, length)
dev2= mult2 * stdev(src2,length)
upper = basis2 + dev2
lower = basis - dev
plot(basis, color=orange)
plot(basis2,color=orange)
p1 = plot(upper, color=red)
p2 = plot(lower, color=blue)
fill(p1, p2)

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