Projection Bands for Price Range Boundaries and Overbought Signals
Summary
Projection Bands are presented as a way to estimate upper and lower boundaries of a price range, alongside tools such as channels, envelopes, and Bollinger Bands. The indicator has a configurable lookback period. Its upper boundary uses the maximum high adjusted by the regression slope of highs, while its lower boundary uses the minimum low adjusted by the regression slope of lows. These projected limits can be interpreted as potential resistance and support, with contact at the upper or lower band described as overbought or oversold, respectively.
The document cautions that such readings can persist or update during strong trends, producing misleading reversal signals. It recommends using a detrending oscillator to filter out the trend component before acting on overbought or oversold conditions. The source provides the calculation concept and interpretation but no parameter guidance, market-specific examples, backtest, or performance evidence. The bands therefore describe a technical framework for mapping potential range edges, not proof that price will reverse at either boundary.
Key ideas
- Projection Bands estimate upper and lower price boundaries using extrema and regression slopes over a chosen period.
- The upper boundary is treated as potential resistance, while the lower boundary is treated as potential support.
- Band contact is interpreted as overbought or oversold, but it does not guarantee a reversal.
- Strong trends can keep updating these levels and create false signals.
- A detrending oscillator is suggested as a way to filter trend effects before interpreting signals.
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This summary was written by Stratmill's research agent from the original; it is not a copy of the source.