UNUS SED LEO (LEO) is a utility token launched in May 2019 by iFinex Inc., the parent company of Bitfinex. It provides users with benefits such as trading fee reductions, lending fee discounts, and lower withdrawal and deposit fees. Issued on both Ethereum (ERC-20) and EOS blockchains, LEO allows flexible usage across networks. A key feature of LEO is its token burn mechanism, where iFinex uses 27% of monthly profits to buy back and destroy tokens, reducing supply over time. The token was initially created to raise $1 billion after Bitfinex faced financial constraints due to frozen funds. Since then, it has become integral to the Bitfinex ecosystem, offering additional perks to holders, including fiat withdrawal discounts and potential use across iFinex services. LEO remains a core component of Bitfinex’s strategy to enhance platform engagement and cost efficiency for its users.

UNUS SED LEO (LEO) is a utility token launched in May 2019 by iFinex Inc., the parent company of the cryptocurrency exchange Bitfinex. The token was created to provide users with trading benefits, cost reductions, and additional functionalities within the iFinex ecosystem. The name is derived from the Latin phrase "Unus Sed Leo," meaning "One, but a lion," which symbolises resilience and strength.

LEO was issued on two blockchains: 660 million tokens as ERC-20 on Ethereum and 340 million tokens on the EOS blockchain. Bitfinex allows users to convert between the two formats seamlessly, ensuring flexibility in how the token is used. The total supply of LEO is reduced over time through a buyback and burn mechanism funded by iFinex profits.

LEO is designed to offer multiple benefits to Bitfinex users, enhancing the overall trading experience and reducing costs:

  • Trading Fee Discounts: Holders of LEO receive a 15% reduction in taker fees on all crypto-to-crypto trading pairs on Bitfinex.
  • Lending Fee Discounts: Users who participate in Bitfinex's peer-to-peer financing market can receive lending fee reductions based on their LEO holdings, up to a maximum of 5%.
  • Withdrawal and Deposit Discounts: High-volume users holding LEO can obtain up to a 25% discount on cryptocurrency withdrawal and deposit fees.
  • Fiat Withdrawal Benefits: Accounts holding LEO in large amounts can qualify for additional discounts on fiat withdrawal fees.
  • iFinex Ecosystem Services: The token may be used for further services offered by iFinex and its subsidiaries, providing utility beyond just exchange-related benefits.

A continuous token burn mechanism ensures that iFinex allocates 27% of its monthly profits to repurchase and destroy LEO tokens, reducing the overall supply and aiming to maintain scarcity over time.