Average True Range

Average True Range - The average true range is also known as an ATR. This is an indicator, technical in nature, which tries to show the volatility of any given security. To arrive at the average true range, you have to subtract the day's lowest value from the day's highest value. Although, you must use the previous day's closing value, if it is an increase from the day's high value or a decrease from than the day's low value, which provides the exponential moving average of the true range after it has been calculated over a fourteen day period. High values indicate increase in a security and lower values the opposite.