Bollinger Band XAUUSD Indicator and Price Volatility
When price volatility is high, prices move significantly away from the moving average, causing Bollinger Band width to expand and accommodate larger price movements that remain within 95% of the mean.
Bollinger Band indicator will widen as price volatility widens. This will show as the bollinger bands bulge around the price. When the bollinger bands widen like this it's a continuation pattern & price will continue going in this direction. This is usually a continuation signal.
The visual representation of the Bollinger Bands indicator, explained and shown below, demonstrates the Bollinger Band expansion phase.

High Price Volatility - Bollinger Band XAUUSD Indicator - Bollinger Band Bulge
When price movement lacks strength (low volatility), the closing prices remain nearer to the moving average, and the band width contracts, thus constraining the potential price swing contained within 95% of the average.
When market volatility decreases, prices typically consolidate while awaiting a breakout. During periods when the Bollinger Bands indicator moves sideways, it is advisable to avoid entering new trades and remain on the sidelines.
The Bollinger bands indicator examples is shown below when the bollinger bands narrowed.

Reduced Price Volatility Indicated by Bollinger Band for XAUUSD - Recognizing the Bollinger Band Squeeze
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