UNUS SED LEO (LEO-USD)
UNUS SED LEO (LEO) is a utility token issued by Bitfinex, a cryptocurrency exchange. Users who hold LEO enjoy reduced trading fees, funding fee discounts, and additional benefits from the exchange's referral program. LEO tokens have been issued on both the Ethereum and EOS blockchains. The company raised $1 billion by selling the tokens to investors in a private sale, one of the biggest token sales of all time.