Price Interaction With Upper and
Lower Bands
Learn how price is commonly discussed as interacting with the upper and lower Bollinger Bands, and why band touches are not standalone signals.
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This lesson explores how price is commonly discussed as behaving in relation to the upper and lower bands, directly setting up this unit's final lesson on limitations during strong trends.
This is general educational content, including a direct clarification from the indicator's original developer regarding a common misconception.
Price Touching or Approaching a Band
Price approaching or touching the upper band is sometimes discussed in relation to relatively elevated conditions (conceptually similar to the overbought discussions covered in the RSI and KDJ units), while price approaching or touching the lower band is sometimes discussed in relation to relatively depressed conditions (conceptually similar to oversold).
A Direct Clarification from Bollinger Himself
John Bollinger, the indicator's developer, has specifically clarified that a touch of either band is not, by itself, a signal to buy or sell β he has described such touches as "tags" rather than signals. This direct clarification from the indicator's own creator is an important, specific piece of context for interpreting price interaction with the bands appropriately.
Bouncing Within the Bands in Range-Bound Conditions
In range-bound markets (covered in the Market Guides module), price is sometimes discussed as tending to bounce between the upper and lower bands, reverting back toward the middle band after touching either extreme β a pattern sometimes referred to as mean reversion.
Why This Behaviour Differs in Trending Conditions
This bouncing behaviour is generally discussed as being more relevant to range-bound conditions specifically. In strongly trending conditions, price can behave quite differently in relation to the bands, a distinction explored in full detail in this unit's final lesson.
π Summary
Price touching the upper or lower Bollinger Band is sometimes discussed in relation to relatively elevated or depressed conditions, though John Bollinger himself has specifically clarified that such touches are 'tags,' not standalone buy or sell signals. In range-bound markets, price is sometimes discussed as bouncing between the bands and reverting toward the middle band, though this behaviour is generally discussed as differing during strongly trending conditions, explored in the next lesson.
Frequently Asked Questions
What does price touching the upper band sometimes suggest?
Relatively elevated conditions, conceptually similar to the overbought discussions covered in the RSI and KDJ units.
Did Bollinger himself clarify how to interpret band touches?
Yes, he has specifically stated that a band touch is not, by itself, a buy or sell signal, describing it as a 'tag' rather than a signal.
How does price sometimes behave in range-bound markets relative to the bands?
It's sometimes discussed as tending to bounce between the upper and lower bands, reverting toward the middle band (mean reversion).
Does this bouncing behaviour apply equally during strong trends?
No, this is generally discussed as more relevant to range-bound conditions specifically, with different behaviour occurring during strong trends, covered in the next lesson.
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