Bollinger Band Scans

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

Live data
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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)
0
Overbought
1
Oversold
0
Squeeze ⚡
0
Upper Walk ▲
3
Lower Walk ▼
9
Total Scanned
Filter:
# Symbol LTP Chg % Upper Middle Lower %B Position Bandwidth RSI Volume Signal
1 VEDLTOP 264.7 +0.91% 286.77 269.88 253.0
34.65%
12.51%
31.95 8.6K — Normal
2 NATIONALUMTOP 344.05 +0.48% 363.32 347.16 331.0
40.38%
9.31%
44.55 0 — Normal
3 SAILTOP 161.45 +0.34% 173.71 166.08 158.45
19.66%
9.19%
33.5 89.38L ▼ Lower Walk
4 ADANIENTTOP 3026.4 +0.54% 3267.4 3125.62 2983.85
15.01%
9.07%
33.98 12.81L ▼ Lower Walk
5 BHARATFORGTOP 2155.2 -1.39% 2211.58 2144.6 2077.61
57.92%
6.25%
52.0 10.3K — Normal
6 JINDALSTELTOP 1036.0 -0.86% 1065.77 1040.86 1015.94
40.26%
4.79%
42.11 3.0K — Normal
7 JSWSTEELTOP 1240.8 -0.48% 1266.91 1237.92 1208.94
54.96%
4.68%
49.31 10.84L — Normal
8 TATASTEELTOP 182.67 -0.85% 191.71 187.37 183.02
-4.03%
4.64%
30.51 1.61Cr ● Oversold
9 HINDALCOTOP 942.8 -1.34% 980.06 958.15 936.24
14.97%
4.57%
30.74 44.94L ▼ Lower Walk

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?

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.

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

Bollinger Band Formulas

Related Tools

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