bollinger bands

Bollinger Bands are a versatile and widely-used technical analysis tool that provides a range for price movement and helps identify overbought or oversold conditions. They consist of three lines: Middle Band: This is a Simple Moving Average (SMA), usually set to a 20-day period. Upper Band...

John Bollinger, CFA, CMT Creator of Bollinger Bands Bollinger Bands are a technical trading tool created by John Bollinger in the early 1980s. They arose from the need for adaptive trading bands and the observation that volatility was dynamic, not static as was widely believed at the time...