GME BB Indicator is based on Bollinger Bands.
Bollinger Bands is a versatile tool combining moving averages and standard deviations and is one of the most popular technical analysis tools available for traders.
There are three components to the Bollinger Bands indicator:
Moving Average: By default, a 20-period simple moving average is used. Upper Band: The upper band is usually 2 standard deviations (calculated from 20-periods of closing data) above the moving average. Lower Band: The low