# BB band definition

**Published by:** [Trading Tips](https://paragraph.com/@trading-tips/)
**Published on:** 2021-10-09
**URL:** https://paragraph.com/@trading-tips/bb-band-definition

## Content

A Bollinger Band® is a technical analysis tool defined by a set of trendlines plotted two standard deviations (positively and negatively) away from a simple moving average (SMA) of a security's price, but which can be adjusted to user preferences. Bollinger Bands® were developed and copyrighted by famous technical trader John Bollinger, designed to discover opportunities that give investors a higher probability of properly identifying when an asset is oversold or overbought.1

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