Binance is already #1 exchange, says so in the article above, and also you can look it up here...
https://www.worldcoinindex.com/exchange
as we write, Binance has $2.2 billion traded last 24 hours vs #2 OKEX at $1.8bn and BitFinex $1.4 bn.
Kucoin is Binance's closest "brother" and is only $70 mm (or $0.070 billion to use the notation we used for Binance).