Okex exchange is not just a cryptocurrency exchange but more of a financial institution that provides trading with both flat Currencies and cryptocurrency.
It even offers trading of futures and options. Traders can also use debit card on the exchange.
Okez provided an advanced trading platform that is almost not usable to beginners. It is more for advanced traders.
It has very high market capitalization and daily volume reported on its platform although doubt has been raised over the truthfulness of this figured.