Bollinger Bands %B quantifies where the current price sits relative to the upper and lower Bollinger Bands. Values above 1 indicate price is above the upper band; values below 0 indicate price is below the lower band — making it useful for spotting overbought and oversold conditions.
This sample pairs CSCO candlestick data with Bollinger Bands (period 30, deviation 3) on the main plot and a %B oscillator in a 30% height subplot styled in green (#6E9C4E). The band lines use distinct colors: upper in blue (#3b8ad8), middle in orange (#f18126), and lower in light blue (#7bc0f7). Grid lines are enabled, and the chart includes a synchronized line scroller, a range picker, and a range selector, with the default view from October 1995 to July 1996.
See the Technical Indicators documentation for all configuration options.