Using a Standard-Deviation Oscillator to Read Volatility Cycles

Summary

The document describes a volatility-cycle oscillator built from the current rolling standard deviation of closing prices. It compares that value with the recent highest and lowest standard deviations, smooths the resulting measure, and bounds the output between zero and minus one. The stated settings use an 18-period lookback and a smoothing period of two.

The interpretation offered is that low oscillator readings may precede a volatility expansion or the end of a prevailing trend, while higher readings are associated with a trend forming. The author recommends using the oscillator alongside other indicators. More smoothing may reduce false signals but adds lag. No backtest, market examples, or measured predictive results are provided, and the document does not specify how to turn readings into entries, exits, or risk controls.

Key ideas

• The oscillator compares current price variability with its recent range of standard-deviation values.
• Its output is smoothed and constrained to a range from minus one to zero.
• Low readings are described as possible precursors to volatility expansion or trend exhaustion.
• Higher readings are presented as signs that a trend may be forming.
• Additional smoothing can reduce false signals while increasing lag, and confirmation from other indicators is advised.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.