A better Bollinger Band with an average of 20 EMAs as pivot price, which makes its standard deviation way more sensitive compared to traditional Bollinger Band.
-- My Tips -- Long flat convergence suggests a big potential price movement. Short quick convergence of short supportive ema(default: 10days) and upper band suggests a safe middle entry point. Recommended auxiliary indicator: Wavetrend by Lazybear, which points out entry and exit points quite accurately in bull market.
-- PS -- This system is a hybrid of EMA Ribbons and Bollinger Band.