What are Bollinger Bands®?

Bollinger Bands® consist of a centerline and two price channels or bands above and below it. The centerline is typically a simple moving average while the price channels are the standard deviations of the stock being studied.

What are fidelity Bollinger Bands?

Fidelity Bollinger Bands are a type of price envelope developed by John Bollinger. (Price envelopes define upper and lower price range levels.) Bollinger Bands are envelopes plotted at a standard deviation level above and below a simple moving average of the price.

Are Bollinger Bands a good technical analysis tool?

Keep in mind that John Bollinger himself strongly alluded to Bollinger Bands be used in conjunction with other forms of technical analysis tools, as they don’t contain all of the data necessary for proper analysis of price action. To sum up, Bollinger Bands are a valuable technical analysis tool.