A Bollinger Band® is a set of lines plotted two standard deviations ( positively and negatively) away from a simple moving average of the security' s price. Bollinger Bands are a type of statistical chart characterizing the prices and volatility over time of a financial instrument or commodity, using a formulaic method.
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Bollinger Bands® are a technical chart indicator popular among traders across several financial markets. On a chart, Bollinger Bands® are two " bands" that.
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