The ATR% is an indicator to measure the increased volatility comparing with the past period.
1. Default is 14 bars, but we can switch to 21 or 7. 2. For the smoothing method, by default using simple moving average, but EMA, WMA and RMA is an option. 3. if over 1.5%, we consider the volatility increased significantly. 4. Combine ATR%, Stock screening (notional and volatility ) with 1-3 min chart, it's very easy to catch the sudden price movement for Japan Equities. hope you find it useful.