I've extended this indicator to include both upside and downside volatility. The original formula emulates the VIX calculation looking for downward price expansion. This version includes an inverted formula and may be more suitable for other instruments as opposed to indices
Display options are
- Downside - the original formula
- Upside - new formula
- Upside-Downside - difference giving a swing oscillator
- Average Upside & Downside - average volatility
An internal RSI may also be enabled to help filter the signal