Random article: Average True Range
Average True Range (ATR) is an indicator of technical analysis measuring volatility of financial asset. Originally, this indicator was purposed for trading with commodity futures.
ATR indicator is not dedicated to forecasting direction of asset's movement and moreover does not have a goal to make any kind of forecasting. Average True Range is only meant to describe volatility (present variability) of instrument (asset) and is developed as a supplementary indicator of technical analysis, which must be combined with other indicators. In other words, Average True Range assists in analysis of one or another asset.