HB Bollinger

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Bollinger Bands are a popular technical analysis tool developed by John Bollinger in the 1980s. They help traders identify periods of high or low volatility in the price of a financial instrument (like a stock, currency, or commodity) and potential overbought or oversold conditions.

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發行說明

Bollinger Bands (/ˈbɒlɪndʒər/) are a type of statistical chart characterizing the prices and volatility over time of a financial instrument or commodity, using a formulaic method propounded by John Bollinger in the 1980s. Financial traders employ these charts as a methodical tool to inform trading decisions, control automated trading systems, or as a component of technical analysis. Bollinger Bands display a graphical band (the envelope maximum and minimum of moving averages, similar to Keltner or Donchian channels) and volatility (expressed by the width of the envelope) in one two-dimensional chart.