Bollinger Bands width Analysis and Bollinger Bands width Trading Signals
Developed & Created by John Bollinger.
This technical indicator is derived from the initial Bollinger technical indicator.
Bandwidth is a measure of width of Bollinger Bands.
Calculation
Bandwidth = Upper Band - Lower Band
Middle Band

This specific oscillator trading indicator is predicated on the principle that price and volatility exhibit cyclical behaviors.
Periods of high volatility are followed by the periods of low price volatility.
When volatility is high, bands are far apart, the band width will also be wide apart.
When volatility is low, Bands are narrow and the band-width technical indicator also will be narrow.
The blue line shows the top bandwidth from past periods.
This line also identifies periods of high price volatility
The red line represents the lowest Bandwidth value reading for a previous number of specified periods.
This line also identifies the periods of low price volatility
XAU/USD Analysis and Generating Signals
Consolidation - Bollinger Squeeze
Bollinger Bandwidth identifies periods of price consolidation (squeeze), signaling potential breakouts in specific directions afterward.
Signals are generated/derived when there is a price break-out - signal is generated by indicator starting to go up after touching the red line. When bandwidth line begins to move up it signifies that price volatility is rising as price is breaking out.

Squeeze

Break Out Signal After Band-width Squeeze
However, this is a directionless technical indicator and needs to be combined with another technical indicator like the Moving Average to figure out the direction of the price trend/ Break Out.
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