This script is yet another variant of the famous Bollinger Bands® TA tool used to track price volatility as it deviates from the mean of a security using standard deviations (positive &negative). Built for my own personal preferences. But perhaps you might like it, too.
Includes + Chart Lines: price, upper and lower bands + User Options: SMA length, stdev value + Heads up Display (HUD) with TARGET's and other related stats