Auto Regression Channels Indicator is a popular and useful Forex indicator for MT4 traders. The indicator works by plotting two channels on the price chart, one based on the price action over a given period of time, and the other based on the regression line. This allows traders to identify areas of support and resistance, as well as potential entry and exit points. The indicator also provides traders with an insight into the overall trend, and can be used to identify potential price reversals.