Smoothed Moving Average (SMMA)
The Smoothed Moving Average (SMMA) is similar to the Simple Moving Average (SMA), in that it aims to reduce noise rather than reduce lag. The indicator takes all prices into account and uses a long lookback period.
Old prices are never removed from the calculation, but they have only a minimal impact on the Moving Average due to a low assigned weight.
It is often used in combination with other signals and analysis techniques.