How to Use Bollinger Bands on Pluang Web Platform to Track Volatility

Bollinger Bands on Pluang's web trading platform consist of three lines plotted around price: a middle band (a simple moving average, typically 20-period) and two outer bands placed a set number of standard deviations above and below it, visually expanding and contracting as market volatility rises and falls. When the bands widen, volatility is increasing; when they narrow (a "squeeze"), volatility is low and a significant price move may be building.

• The three components of Bollinger Bands: The middle band is a 20-period SMA by default on Pluang's web platform. The upper band is the SMA plus 2 standard deviations; the lower band is the SMA minus 2 standard deviations. You can customise both the period and the number of standard deviations in Pluang's indicator panel.

• What bandwidth tells you: The distance between the upper and lower bands is a direct measure of recent volatility. Wide bands mean the asset has been experiencing large price swings; narrow bands mean the asset has been trading in a tight range. Traders on Pluang watch for a Bollinger Band squeeze — a period of unusually narrow bands — as a potential precursor to a breakout in either direction.

• Price touching or breaching the bands: When price touches the upper band, it does not automatically signal a sell — in strong uptrends, price can "walk" along the upper band for extended periods. However, when price closes outside the band and then pulls back inside, some traders read this as a reversal signal. The same logic applies in reverse for the lower band.

• The %B indicator: An extension of Bollinger Bands, %B measures where price sits relative to the bands on a scale from 0 to 1. A reading of 1.0 means price is at the upper band; 0.0 means price is at the lower band; 0.5 means price is at the middle band (SMA). This can be added as a separate indicator on Pluang's web platform for more precise readings.

• Using Bollinger Bands alongside other Pluang indicators: Bollinger Bands are most useful for gauging relative volatility and identifying potential breakout conditions. Combine them with a momentum indicator like RSI or MACD available on Pluang to help determine the likely direction of a breakout — for example, an RSI reading above 50 during a squeeze breakout to the upside adds confirmation.

Related questions:

Q: Can I change the Bollinger Bands settings on Pluang's web platform?
Yes, you can customise the middle band period (default 20) and the standard deviation multiplier (default 2) in Pluang's indicator panel.

Q: What is a Bollinger Band squeeze and why does it matter on Pluang?
A squeeze occurs when the bands narrow significantly, indicating a period of low volatility that often precedes a sharp directional move — traders on Pluang watch squeezes as potential breakout setups.

Q: Does price touching the upper Bollinger Band always mean an asset is overvalued on Pluang?
No — in strong uptrends, price can ride the upper band for extended periods; touching the band indicates relatively high price within recent history but is not by itself a reversal signal.