Bollinger Fanboy v4.0 — Indicator by sh3rmfx

Set spread value from your broker, eg my broker has a spread of 0.0003 for EURUSD. You can set your required profit ratio eg 1.5 means risk 1 to win 1.5. Enter if price crosses orange (or set a buy stop order or sell limit order) and set stoploss at red and take profit at green. Setup lasts for 20 bars. If it doesn't cross the orange in that time, forget it. Long if red is below orange, short if red is above orange. Recommended to be used on 4H, D, W charts only. Use at your own risk. I cannot be held liable for any damages financial or otherwise, directly or indirectly related to using this script and trading strategy.

Copyright 2014 Michael Edwards (info@bollingerfanboy.com)

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.

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Want to use this script on a chart?

study(title="Bollinger Fanboy", shorttitle="Bollinger Fanboy", overlay=true)
bf_spread = input(title="Spread", type=float, defval=0.0000)
bf_period = 20
bf_stddev = 2
bf_profit = input(title="Profit Ratio", type=float, defval=1.50)
bf_rsi = 30
bf_rsi_inner = 10

bf_middle = sma(close, bf_period)
bf_top = bf_middle + (stdev(close, bf_period) * bf_stddev)
bf_bottom = bf_middle - (stdev(close, bf_period) * bf_stddev)

bf_height = ((high + bf_spread) - (low - bf_spread)) * bf_profit

bf_short_entry = low - bf_spread
bf_short_stop = high + bf_spread
bf_short_exit = bf_short_entry - bf_height

bf_long_entry = high + bf_spread
bf_long_stop = low - bf_spread
bf_long_exit = bf_long_entry + bf_height

bf_long = close < bf_middle ? (close > bf_bottom ? true : false) : false
bf_short = close > bf_middle ? (close < bf_top ? true : false) : false

bf_lowest = low == lowest(bf_period / 2) ? ( low < bf_bottom ? true : false ) : false
bf_highest = high == highest(bf_period / 2) ? ( high > bf_top ? true : false ) : false

bf_rsi_long = rsi(close, 20) > (50 + bf_rsi_inner) ? (rsi(close, 20) < (50 + bf_rsi) ? true : false) : false
bf_rsi_short = rsi(close, 20) < (50 - bf_rsi_inner) ? (rsi(close, 20) > (50 - bf_rsi) ? true : false) : false

bf_go_long = bf_long ? ( bf_lowest ? ( bf_long_exit < (bf_middle - bf_spread) ? (bf_rsi_short ? true : false) : false ) : false ) : false
bf_go_short = bf_short ? ( bf_highest ? ( bf_short_exit > (bf_middle + bf_spread) ? (bf_rsi_long ? true : false) : false ) : false ) : false

bf_enter = bf_go_long ? bf_long_entry : ( bf_go_short ? bf_short_entry : bf_enter[1] )
bf_exit = bf_go_long ? bf_long_exit : ( bf_go_short ? bf_short_exit : bf_exit[1] )
bf_stop = bf_go_long ? bf_long_stop : ( bf_go_short ? bf_short_stop : bf_stop[1] )

plot(bf_enter == bf_enter[bf_period] ? na : bf_enter, title="Entry", color=orange, style=circles, linewidth=2)
plot(bf_enter == bf_enter[bf_period] ? na : bf_exit, title="Exit", color=green, style=circles, linewidth=2)
plot(bf_enter == bf_enter[bf_period] ? na : bf_stop, title="Stop", color=red, style=circles, linewidth=2)