How to use the Bollinger Bands® Indicator

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Bollinger Bands
Bollinger Bands® is an indicator that is widely used for measuring volatility. It was developed by John Bollinger in the 1980’s, a long time market technician and well respected in the industry. Bollinger Bands® are based upon a moving average, with upper and lower bands that expand and contract as volatility changes. The upper and lower bands are calculated based on a standard deviation of the mo...