hemmm
i think its amount of this price orders
like 056 price have 50 orders inside one price and etc
whats u think ? i think this is one .
may be iam mistaken
If I'm not wrong vertical column shows the volume of buy and sell orders quantity.
In the attached image sell order quantity is more than a buy order quantity that means the price of that coin may go down if the sell order stays like that for more time.