Bollinger Bubbles are candlestick patterns in which a candle forms entirely outside the Bollinger Bands, without touching either band.
An upper Bollinger Bubble appears above the upper band, while a lower Bollinger Bubble forms below the lower band. In both cases, the entire candle, including its wicks, must remain outside the bands. Simply crossing a Bollinger Band is therefore not enough to qualify as a Bollinger Bubble.

This pattern highlights an unusually strong price movement relative to the Bollinger Bands. It may indicate a potential market extreme and the possibility of a correction, but it does not, by itself, provide a reliable reversal signal.
This product includes two ProRealTime screeners designed to automatically detect upper and lower Bollinger Bubbles.
General filtering on the daily timeframe, based on price and trading volume, allows you to select the desired liquidity level.

Many parameters allow you to adapt the search to your own criteria. All settings can be adjusted directly from ProRealTime's “Variables” menu, without modifying the code.
Adjustable validation criteria:
Available filters:
General filtering:
Video presentation:
Details of available settings:
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Disclaimer
Our proposed tools (indicators and screeners) are not investment advices but tools allowing everyone to find specific graphic configurations. The automated trading systems offered have been developed and optimised using historical data; however, past performance is no guarantee of future results. Investing in the financial markets involves risks up to and including the total loss of capital. The user of the proposed tools understands and accepts that the use of these tools is under his sole and entire responsibility. P2C Trading declines all responsibility in the use of the tools and the consequences that would result.