A Bollinger Band and MACD Contrarian Reversal Signal
Summary
K’s reversal indicator combines Bollinger Bands with MACD to identify possible countertrend entries. The buy setup looks for price below the lower band while MACD crosses above its signal line; the sell setup mirrors this above the upper band with MACD crossing below its signal line. The document recommends using the signals alongside an existing directional bias in sideways or range-bound markets.
The supplied formula uses a 20-period band length, a multiplier of 2, and MACD settings of 12, 26, and 9; the explanatory prose also refers to a 100-period band, creating an inconsistency about the intended lookback. The indicator does not specify dependable exit rules. It may generate false signals during trends, and the document provides no validated method for filtering those signals or comparative performance evidence. It cautions that results may vary by market, so the setup should not be treated as universally applicable.
Key ideas
- The indicator combines Bollinger Band extremes with MACD signal-line crossovers to generate contrarian entries.
- A buy setup looks for price below the lower band as MACD crosses upward; a sell setup reverses those conditions above the upper band.
- The document proposes using the signals in range-bound markets alongside an existing directional bias.
- The written description and supplied formula disagree on the Bollinger Band lookback period.
- No robust exit method or reliable filter for trend-related false signals is provided.
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Shown in full with attribution under the source's licence. Licence: GPL-3.0
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.