Bitfinex – the exchange has been operating since 2012. In terms of the volume of trading transactions with cryptocurrency, it occupies the fourth position in the world ranking. Supports 133 currencies, three of which are fiats (EUR, USD, JPY). The platform offers margin trading with a leverage of 1:3, as well as OTC trades and trading based on derivatives. For transactions, Bitfinex takes a commission of 0.02-0.2%, depending on the total amount of trades made by the trader. Topping up the balance with cryptocurrencies is free, with fiats – 0.1%.