Fisher-Style Indicator: Normalization, Smoothing, and Reversal Signals
Summary
The article explains a Fisher-style oscillator intended to make price extremes and turns easier to identify. It first locates the close within the recent high-low range and maps that position to a bounded value. It then smooths the value using the prior bar, clamps it short of the logarithm's unstable limits, and applies a recursive Fisher transformation. The resulting line is designed to emphasize values near the range extremes.
The suggested interpretation combines threshold and direction: a reading beyond an extreme level is not a signal by itself; a turn back toward zero after reaching that level may indicate a mean-reversion opportunity. The article discusses practical issues including dependence on prior-bar state, gaps, range-bound markets, and the lookback period's responsiveness-versus-noise trade-off. It gives implementation guidance but no systematic performance results. Thresholds and settings are starting points that would need testing by symbol and timeframe, and the indicator can remain pinned visually at its display boundary during strong trends.
Key ideas
- The indicator normalizes price to its recent range before applying a logarithmic transformation.
- Recursive smoothing carries information from prior bars and requires careful state handling.
- A potential signal occurs when an extreme reading turns back toward zero, rather than at the threshold crossing.
- Lookback length and signal thresholds trade responsiveness and noise against selectivity.
- Gaps, range-bound conditions, and sustained trends can complicate interpretation.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.