English to Persian (Farsi) Other Finance (general)

Many leading stocks will top after an accelerated rate of advance or what is
commonly described as a climax or blow-off top. The reason big stock moves
tend to end like this is because big institutions need buyers to absorb their
large blocks of shares. As a result, liquidation takes place on the way up
when the price is advancing and there are buyers available, as the stock
moves from strong professional hands to weak retail hands.