OPEN-SOURCE SCRIPT
Bollinger Bands Width with Squeeze Alert
This is the standard Bollinger Bands Width (BBW) indicator with the added capability of detecting the "Bollinger Bands Squeeze" as defined by John Bollinger:
The BBW squeeze happens when BBW < all BBWs of the past 125 intervals.
Whenever a BBW squeeze occurs, this means there is low volatility.
A low volatility period is almost always followed by high volatility: a large breakout (with price performing ample movement and exiting the BBW bands) may suddenly occur.
The breakout may be preceded by a fakeout, during which price moves in the opposite direction.
The BBW squeeze happens when BBW < all BBWs of the past 125 intervals.
Whenever a BBW squeeze occurs, this means there is low volatility.
A low volatility period is almost always followed by high volatility: a large breakout (with price performing ample movement and exiting the BBW bands) may suddenly occur.
The breakout may be preceded by a fakeout, during which price moves in the opposite direction.
Open-source script
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in publication is governed by House rules. You can favorite it to use it on a chart.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.