Navigation: Realtest Script Language > Syntax Element Details > BBTop Category Indicator Functions Description Bollinger band top Syntax BBTop(len, mult) Parameters len - lookback period mult - number of standard deviations Notes This is equivalent to Avg(C, len) + (mult * StdDev(C, len)). To calculate BBTop for something other than Close use BBTopF. This function supports one-pass calculation when used in the Data Section with a non-variable count. Copyright © 2020-2025 Systematic Solutions, LLC