Bollinger Bands: Meaning, Definition & Indian Stock Market Examples

Three bands (SMA ± 2 standard deviations) that expand/contract with volatility.

Disclaimer: This article is for educational purposes only and does not constitute SEBI-registered investment advice. Consult a SEBI-registered investment advisor before making investment decisions.

What is Bollinger Bands?

Bollinger Bands consist of a middle band (20-period SMA) and two outer bands at ±2 standard deviations. When bands are wide, volatility is high; when narrow ("Bollinger Squeeze"), a large price move is typically imminent. Price touching the upper band suggests overbought; touching the lower band suggests oversold.

Bollinger Bands — Indian Stock Market Example

Bollinger Band squeezes on Nifty weekly charts have preceded major breakouts — both the 2020 recovery rally and the 2022 correction were preceded by band compression. Indian mid-cap stocks often show powerful breakouts after multi-month band squeezes, a setup popular with momentum traders.

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Frequently Asked Questions about Bollinger Bands

What is the Bollinger Band Squeeze?

A squeeze occurs when the bands contract to their narrowest point, indicating a period of low volatility. Statistically, low volatility is followed by high volatility — so a squeeze signals a major move is coming. Traders use the direction of the eventual breakout to determine trade direction.

Can price walk along a Bollinger Band?

Yes. In strong trends, price can "walk the upper band" — staying near the upper band for extended periods. This is a sign of strong bullish momentum, not a sell signal. Only when price reverses back inside the bands does it signal trend weakness. This is a common mistake for new traders.

Related Terms

Average True Range

Average daily price range — measures market volatility.

RSI (Relative Strength Index)

Momentum oscillator from 0–100 — above 70 is overbought, below 30 is oversold.

Breakout

Price moving decisively beyond a support or resistance level on above-average volume.

Volatility

Degree of price fluctuation — measured by standard deviation or India VIX.

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