Digital assets that are listed in Binance gains high liquidity so this is not a huge suprise. It has always the most volume and I'm sure that there are a lot of whales hanging out there and just cutting their orders just to make it look it's a normal buy and sell orders. If I were to decide I would want only 10-20 exchanges that will exist in the market so Binance will have 80% or more of the total volume of the whole crypto market.