### Description

Sigma Channel plots an adaptive price channel based on a moving average and standard deviation (σ). The channel automatically expands and contracts with market volatility.

### How to Use

* **Period**: Number of bars used for calculation.

* **Sigma Multiplier**: Channel width, e.g. 2.0, 2.5 or 3.0.

* **Middle**: Moving average.

* **Upper/Lower**: Selected σ distance from the moving average.

For mean-reversion, watch for price reaching or exceeding the outer bands and use additional confirmation before entering. The Middle line can be used as a potential target.