We have several bars one after the other outside or on the limit with the upper Bollinger band. Whether this occurs on the upside or on the downside, it's usually a sign that it is wise NOT to take position in the opposite direction. Or at least to wait to do so...

This event can occur on any time frame, although on daily and weekly charts it is rare that we have several "outside" periods, with the band usually acting as a boundary.

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