@Marked-up
I forgot its exact formula(and so how it exactly behaves) but you can find it on internet. Roughly, compared to the RSI, it is an oscillator that is less sensitive to trends. It means that it will go not much less to the top range(high value), in a downtrend than on a flat market, compared to the RSI. So it is complementary. However as it is based on the previous range(volatility), it can produce a lot of unwanted signals following low volatility periods.
