Fibonacci Bollinger Bands indicator is a very nice, trustworthy and easy to grasp indicator. (The afl is available on various website, with the candle bar. As for me western bar gives more clear result I`ve channged the code with little effort. I will post Chart and AFL later) Fibonacci Bollinger Band is based on the same principles as the standard Bollinger Bands indicator. The upper and lower bands of Fibonacci Bollinger Bands indicator depends on volatility just like the Bollinger Bands indicator does. There is a difference though, in standard B bands standard deviation is used as the measure of volatility. In Fibonacci B Bands Wilders Smoothed ATR is used.