Bollinger width

What does Bollinger width measure?

How wide the Bollinger Bands are right now. Very narrow means the market has gone quiet — the classic setup traders call a squeeze, often followed by a sharp move.

How is Bollinger width calculated?

Build the Bollinger Bands over 20 candles at 2 standard deviations, take the distance between the top and bottom band, and divide it by the middle line so the number can be compared across prices.

Written by reading the engine’s real computation, not a textbook — where the two differ, the page describes what actually runs.

How do I use Bollinger width in a bot?

In the builder, add an indicator of type bbwidth (parameters: length, default 20; std, default 2). Its value becomes an operand you can compare in any entry or exit rule. The engine grades the whole rule honestly: real fills, no look-ahead, half the history held back.

Related indicators

• Candle bodyThe size of the candle's solid block — the distance from open to close.
• BollingerA price channel that hugs the stock.
• Chaikin volatilityHow fast the market's daily range is expanding or shrinking, in percent.
• Chandelier exitA trailing stop that hangs from the recent extreme, a set distance away.

Or browse all 158 indicators in the full library.