Hi everyone,
Sharing two custom MT4 indicators built around the same core concept: detecting volatility excess on Bollinger Bands and flagging potential mean-reversion zones.
Core logic:
The indicator measures how far price closes beyond the Bollinger Bands, expressed as a percentage of the current band width (not just "above/below the band" — it's normalized against the current volatility regime). When that excess crosses a threshold:
Upside excess → SELL signal (price overextended above the upper band)
Downside excess → BUY signal (price overextended below the lower band)
I'm running two versions, for two different purposes:
Both use the same underlying excess-detection math, just calibrated differently depending on the timeframe/use case.