ERPIW DYORTA Centre
BB

Volatility · 20 · 2σ

Bollinger Bands

Bollinger Bands place lines two standard deviations above and below the 20-day average. Narrow bands mean quiet markets; a close outside the bands marks an unusual move.

How DYOR uses it

A close above the upper band counts as a breakout; holding the upper half of the bands is mildly bullish.

Settings

20 · 2σ

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