A Bollinger Band is a technical analysis tool defined by a set of trendlines. They are plotted as two standard deviations, both positively and negatively, away from a simple moving average of a security's price and can be adjusted to user preferences. Bollinger Bands was developed by technical trader John Bollinger and designed to give investors a higher probability of identifying when an asset is oversold or overbought. The first step in calculating Bollinger Bands is to compute the simple moving average of the security, typically using a 20-day SMA.A 20-day SMA averages the closing prices for the first 20 days as the first data point.Become a supporter of this podcast: https://www.spreaker.com/podcast/investment-terms--4432332/support.

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