Bollinger Band Scans

Detect overbought/oversold extremes, volatility squeeze setups and band-walk momentum using %B and Bandwidth.

Live data

Signal Key: Overbought — price ≥ Upper Band Oversold — price ≤ Lower Band Squeeze — bandwidth near 20-day low Upper Walk — %B ≥ 80 (momentum) Lower Walk — %B ≤ 20 (weakness)

Overbought

Oversold

Squeeze ⚡

Upper Walk ▲

Lower Walk ▼

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#	Symbol	LTP	Chg %	Upper	Middle	Lower	%B Position	Bandwidth	RSI	Signal
1	WIPROTOP	197.62	-0.69%	207.17	189.05	170.92	73.66%	19.18%	64.43	— Normal
2	TECHMTOP	1781.7	-1.29%	1928.59	1769.13	1609.67	53.94%	18.03%	43.1	— Normal
3	COFORGETOP	2032.0	-0.73%	2123.58	1994.06	1864.54	64.65%	12.99%	61.73	— Normal
4	TCSTOP	2454.0	-0.86%	2607.12	2464.68	2322.25	46.25%	11.56%	41.64	— Normal
5	INFYTOP	1148.3	-0.5%	1206.91	1146.13	1085.35	51.79%	10.61%	47.42	— Normal
6	HCLTECHTOP	1401.8	-0.37%	1472.82	1405.4	1337.99	47.33%	9.59%	45.1	— Normal
7	LTMTOP	4243.5	-1.73%	4424.24	4231.43	4038.62	53.13%	9.11%	51.4	— Normal
8	MPHASISTOP	2417.6	-1.52%	2604.39	2513.33	2422.27	-2.56%	7.25%	41.06	● Oversold

#	Symbol	LTP	Chg %	Upper	Middle	Lower	%B Position	Bandwidth	RSI	Volume	Signal
1	MPHASISTOP	2417.6	-1.52%	2604.39	2513.33	2422.27	-2.56%	7.25%	41.06	0	● Oversold

#	Symbol	LTP	Chg %	Upper	Middle	Lower	%B Position	Bandwidth	RSI	Signal
1	WIPROTOP	197.62	-0.69%	207.17	189.05	170.92	73.66%	19.18%	64.43	— Normal
2	TECHMTOP	1781.7	-1.29%	1928.59	1769.13	1609.67	53.94%	18.03%	43.1	— Normal
3	COFORGETOP	2032.0	-0.73%	2123.58	1994.06	1864.54	64.65%	12.99%	61.73	— Normal
4	TCSTOP	2454.0	-0.86%	2607.12	2464.68	2322.25	46.25%	11.56%	41.64	— Normal
5	INFYTOP	1148.3	-0.5%	1206.91	1146.13	1085.35	51.79%	10.61%	47.42	— Normal
6	HCLTECHTOP	1401.8	-0.37%	1472.82	1405.4	1337.99	47.33%	9.59%	45.1	— Normal
7	LTMTOP	4243.5	-1.73%	4424.24	4231.43	4038.62	53.13%	9.11%	51.4	— Normal

Based on 20-period Bollinger Bands (2σ) on daily candles. Squeeze = bandwidth near 20-session low. · Auto-refresh every 60s during market hours

What Are Bollinger Bands?

Bollinger Bands is a popular technical indicator developed by analyst John Bollinger in the 1980s. It consists of three lines plotted around a simple moving average to measure market volatility and identify overbought or oversold conditions.

Upper Band: 20-day SMA + (20-day standard deviation of price × 2)
Middle Band: 20-day Simple Moving Average (SMA)
Lower Band: 20-day SMA − (20-day standard deviation of price × 2)

When the bands widen, volatility is increasing — more trading opportunities. When bands narrow (squeeze), volatility is low and a breakout is likely approaching.

How to Use Bollinger Bands in Trading

Price near Lower Band: Potential buying opportunity if the band holds; breakdown signal if price breaks below.
Price near Upper Band: Potential selling opportunity if the band holds; breakout signal if price breaks above.
Bollinger Squeeze: Bands narrow — anticipate a high-momentum breakout or breakdown.
Upper Band Walk: Price consistently touches the upper band — strong uptrend in progress.
Lower Band Walk: Price consistently touches the lower band — strong downtrend in progress.
%B above 1.0: Price is above the upper band — overbought; watch for reversal.
%B below 0.0: Price is below the lower band — oversold; watch for bounce.

Bollinger Band Formulas

Upper Band = 20-day SMA + (20-day std dev × 2)
Middle Band = 20-day SMA
Lower Band = 20-day SMA − (20-day std dev × 2)
%B = (Price − Lower Band) / (Upper Band − Lower Band)
Bandwidth = (Upper Band − Lower Band) / Middle Band

Related Tools

What Are Bollinger Bands?

Upper Band: 20-day SMA + (20-day standard deviation of price × 2)
Middle Band: 20-day Simple Moving Average (SMA)
Lower Band: 20-day SMA − (20-day standard deviation of price × 2)

When the bands widen, volatility is increasing — more trading opportunities. When bands narrow (squeeze), volatility is low and a breakout is likely approaching.

How to Use Bollinger Bands in Trading

Price near Lower Band: Potential buying opportunity if the band holds; breakdown signal if price breaks below.
Price near Upper Band: Potential selling opportunity if the band holds; breakout signal if price breaks above.
Bollinger Squeeze: Bands narrow — anticipate a high-momentum breakout or breakdown.
Upper Band Walk: Price consistently touches the upper band — strong uptrend in progress.
Lower Band Walk: Price consistently touches the lower band — strong downtrend in progress.
%B above 1.0: Price is above the upper band — overbought; watch for reversal.
%B below 0.0: Price is below the lower band — oversold; watch for bounce.

Bollinger Band Formulas

Upper Band = 20-day SMA + (20-day std dev × 2)
Middle Band = 20-day SMA
Lower Band = 20-day SMA − (20-day std dev × 2)
%B = (Price − Lower Band) / (Upper Band − Lower Band)
Bandwidth = (Upper Band − Lower Band) / Middle Band