RMI is a combination of RSI and MFI oscillators which considers money flow and strength of supply or demand together.
It estimates that the money of which side is being ran out.
So the power of trends can be predictable approximately.
Where the green columns appear, it means demand is very high and it can fall because buyers may withdraw and sell their assets.
And when red columns appear, it means supply is very high and sellers or new buyers may enter into new deals which may increase the price of a asset.
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