Hi @stream4u you have explained wyckoff method greatly.

Accumulation zone predicts that the market is absorbing the investments and becoming ready for the next boom. And the after the accumulation zone suddenly markup phase starts.

And similarly distribution phase is the preparation of a downtrend. In the distribution phase the big investors and institutions starts distributing their assets to retailers and after this phase markdown starts.

Traders can use this method to predict the phases of the market as well as current phase of market.