A technical analysis indicator used to measure the highness or lowness of the asset price relative to previous trades. Bollinger Bands consisting of three bands: the middle band (a simple moving average), the upper band (a specific number of standard deviations above the middle band), and the lower band (provided the number of the standard deviations below the middle band)
Bollinger Bands
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Part of the Trading glossary. Definitions are general explanations, not investment advice.