Volatility & Breakout Alerts

Bollinger Band Alerts — Breakout & Volatility Notifications

Get alerted after the next scheduled check when a stock or ETF price touches or breaks through its Bollinger Bands. Alert on upper band breakouts (potential overbought), lower band breakdowns (potential oversold), or monitor changing band width as volatility contracts — for supported tickers.

90-Day Alert Overview

US Fear & Greed Index vs. S&P 500

Fear & Greed Index
S&P 500
Example threshold (40)
Alert markers (below 40)
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The Bollinger Band indicator explained

Bollinger Bands were developed by John Bollinger in the 1980s and consist of three lines plotted around a security's price: a middle band (usually a 20-period Simple Moving Average), an upper band (middle band + 2 standard deviations), and a lower band (middle band − 2 standard deviations).

As volatility increases, the bands widen. As volatility decreases, they contract — a pattern called a Bollinger Band squeeze, which often precedes a sharp price move. Statistically, roughly 95% of price action occurs within the bands — so a breakout above or below is a significant event worth monitoring.

Upper Band Break
SMA(20) + 2 × StdDev
Price closes above the upper band — potential overbought signal or start of a strong uptrend breakout
Middle Band (SMA 20)
20-period Simple Moving Average
Dynamic support/resistance level — price crossing above or below is a trend signal
Lower Band Break
SMA(20) − 2 × StdDev
Price closes below the lower band — potential oversold signal or start of a downtrend

Set a Bollinger Band alert in minutes

1

Choose a ticker

Search any stock or ETF by name or symbol — SPY, AAPL, NVDA, QQQ, or any US-listed equity. Type to search live.

2

Select upper or lower band

Choose the upper Bollinger Band (overbought/breakout signal) or the lower Bollinger Band (oversold/breakdown signal).

3

Set your price condition

Alert when price rises above the upper band value, or drops below the lower band. FearAlert calculates both dynamically on its hourly schedule.

4

Optionally combine

Add RSI, MACD, the Fear & Greed Index, or other indicators as AND / OR conditions for a higher-conviction compound signal.

5

Receive your alert

When your conditions fire, you'll receive a rich alert with the current band values, price, and full market context after the next scheduled evaluation.

Popular Bollinger Band alert configurations

BBSPY lower band breakdown
Bollinger Lower Band (SPY, 20) above current price
Alert when SPY price closes below its lower Bollinger Band — a classic oversold signal on the S&P 500 ETF.
BBAAPL upper band breakout
Bollinger Upper Band (AAPL, 20) below current price
Alert when Apple stock breaks above its upper Bollinger Band — useful for catching momentum continuation or overbought reversals.
BBHigh-conviction dip buy
Price below Bollinger Lower Band (SPY, 20)
Double confirmation: SPY is below its lower Bollinger Band and RSI is also oversold — two independent signals aligning.
Combined with: RSI (SPY, 14) below 30
BBNVDA oversold in fear
Price below Bollinger Lower Band (NVDA, 20)
Alert when Nvidia drops below its lower band while market sentiment is in fear — stock-specific technical meets macro context.
Combined with: Fear & Greed Index below 35
BBQQQ breakout on greed
Price above Bollinger Upper Band (QQQ, 20)
Alert when the Nasdaq ETF breaks out above its upper band while the market is in greed — potential to take profits.
Combined with: Fear & Greed Index above 65
BBTriple confirmation entry
Price below Bollinger Lower Band (SPY, 20)
Maximum conviction: Bollinger Band oversold, RSI oversold, and the broader market in extreme fear.
Combined with: RSI (SPY, 14) below 30 AND Fear & Greed Index below 25

Complementary indicators — use both

Bollinger Band Alerts

  • Based on price and volatility directly
  • Adapts dynamically to recent market conditions
  • Best for catching breakouts and volatility changes
  • Upper/lower bands are objective price levels
  • Most useful in volatile, trending markets
Set up BB alerts →

RSI Alerts

  • Based on momentum and speed of price change
  • Fixed scale: 0–100, clear thresholds at 30 and 70
  • Best for catching overbought/oversold extremes
  • Less affected by absolute price levels
  • Most useful in ranging, sideways markets
Set up RSI alerts →

Both Together

  • Price below lower BB AND RSI below 30
  • Two independent signals confirming oversold
  • Drastically reduces false positives
  • Add FGI for full macro context
  • Supported with AND / OR logic in FearAlert
See compound alerts →

Bollinger Band alerts for any stock or ETF

Bollinger Band data is calculated from configured price data and evaluated against your threshold on an hourly schedule.

SPYQQQAAPLTSLANVDAMSFTAMZNMETAGOOGLAMDPLTRIWMVTIGLDBRK.B

...and thousands more

Bollinger Band alerts — common questions

What Bollinger Band settings does FearAlert use? +
How often are Bollinger Band conditions checked? +
Can I combine Bollinger Band alerts with RSI? +
What is a Bollinger Band squeeze? +
What does it mean when price breaks above the upper band? +
Which stocks and ETFs support Bollinger Band alerts? +

Start your Bollinger Band alerts today.

1-month free trial. Works with any stock or ETF.

Get started for free →

Also explore: RSI Alerts  ·  MACD Alerts  ·  All Stock Alerts