The Average True Range or the ATR, is a measure of volatility introduced by Welles Wilder in his book: “New Concepts in Technical Trading Systems”
The True Range Indicator is greatest of the following:
- Current high less the current low.
- The absolute value of the current high less the previous close.
- The absolute value of the current low less the previous close.
The Average true range is a moving average (generally 14-das) of the True Ranges. Weles Wilder originally developed the ATR for commodities but it can also be used in binary options trading, as a measure of volatility in currencies/forex. Thus as a binary options strategy, the ATR could be used to measure how volatile a currency pair or a trading asset will be volatile in a given period of time.