Fisher Transform Crossovers for Momentum Signals
Summary
This strategy transforms normalized price data with the Fisher Transform and compares the resulting line with a one-period lagged trigger line. It enters long when the Fisher line crosses above the trigger while below a stated threshold, and closes the position on a downward cross when the Fisher value is above that threshold. Signals are checked at candle close, and the implementation allows only one open position at a time. The example uses a nine-period lookback and a fixed cash position size.
The document explains the transform’s smoothing and presents it as a way to make turning points more visible. It warns that repeated crosses can produce poor signals in sideways markets, that the lookback affects sensitivity, and that historical indicators can lag fast reversals. The supplied backtest configuration identifies a daily BTC futures sample period, but no performance statistics or trade outcomes are reported. The rules are long-only in the source, and the stated downward-cross condition functions as an exit rather than a short entry; readers should distinguish that implementation from a two-sided momentum system.
Key ideas
- The Fisher line is compared with its one-period lag to generate crossover signals.
- A long entry requires an upward cross while the Fisher value is below the stated threshold.
- A downward cross above the threshold closes an existing long position in the provided implementation.
- Signals are confirmed at candle close, with only one open position permitted.
- Range-bound markets, parameter sensitivity, and the absence of reported backtest results limit the evidence for the approach.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.