Navigation: Realtest Script Language > Syntax Element Details > BBWidth Category Indicator Functions Description Bollinger band width Syntax BBWidth(len, mult) Parameters len - lookback period mult - number of standard deviations Notes This indicates the width of the Bollinger bands relative to the average price that they surround. This is equivalent to 100 * (BBTop(len, mult) - BBBot(len, mult)) / Avg(C, len). To calculate BBWidth for something other than Close use BBWidthF. This function supports one-pass calculation when used in the Data Section with a non-variable count. Copyright © 2020-2025 Systematic Solutions, LLC