Unus Sed Leo
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Unus Sed Leo in numbers
Unus Sed Leo (LEO) ranks #13 by market capitalization, at $8.18B. It belongs to the Cryptocurrency sector (Exchange Token). It has traded since May 20, 2019, across 40 markets on 7 exchanges, with $260.82K of volume in the last 24 hours. Its all-time high of $10.93 was reached on Aug 31, 2025; the current price is 14.8% below that peak. Its cycle low of $6.24 came on Dec 18, 2025.
919.86M LEO are in circulation. 2 team members are listed. On Ethereum, 3,641 addresses hold LEO. It is available on 2 networks.
About Unus Sed Leo
Bitfinex is a centralized cryptocurrency exchange operated by iFinex Inc. that allows users to trade more than 120 tokens and five fiat currencies (US Dollar, Euro, Pound Sterling, Japanese Yen, and Chinese Yuan) via spot, margin, and derivative trading using a web browser, or mobile device (iOS or Android).
Background
Bitfinex was founded in Hong Kong in 2012 by Raphael Nicolle as a peer-to-peer Bitcoin exchange. Nicolle’s LinkedIn states he stopped working at Bitfinex in May 2015. Giancarlo Devasini (CFO at Bitfinex) joined Bitfinex in 2013 after meeting Nicolle in late 2012. Jean-Louis van der Velde (CEO of Bitfinex) also joined Bitfinex in January 2013.
Bitfinex is operated by iFinex Inc., registered in the British Virgin Islands, of which Unus Sed Leo Limited is a subsidiary. Bitfinex allows users to trade more than 120 tokens via spot, margin, and derivative trading. The Bitfinex platform allows users to lend, borrow, and stake supported cryptocurrency tokens and fiat currency.
In 2018, Bitfinex, facing an alleged $850.00 million loss due to Crypto Capital's actions, secured a line of credit from Tether. This loan was scrutinized by the New York State Attorney General (NYAG) since Tether's reserves, believed to fully back USDT, were used. In April 2019, the NYAG revealed conflicting transactions between Bitfinex and Tether in an alleged attempt to cover the loss. By 2021, Bitfinex claimed that it had repaid the loan; however, the NYAG found that Bitfinex and Tether made additional false statements to conceal the losses, ultimately leading to financial arrangements between the two to cover the losses. Tether and Bitfinex settled with the NYAG in February of 2021, agreeing to pay an $18.50 million fine, ceasing trading activity with residents of New York (United States), and implementing “a number of steps to increase transparency.” Of note, a Tether blog post states, “Under the terms of the settlement, we admit no wrongdoing.”
In May 2019, Bitfinex released the UNUS SED LEO whitepaper and raised $1.00 billion, offering UNUS SED LEO as an ERC-20 and EOS token. Both tokens were launched on May 21, 2019. According to pg. 14 of the UNUS SED LEO whitepaper, the Bitfinex team intends to programmatically buy back LEO tokens from the market “until no tokens are in commercial circulation.”
Other notable events in the history of Bitfinex include:
The Unus Sed Leo whitepaper (pgs. 8-10) mentions a number of additional products that are either no longer controlled by Bitfinex, inactive, or never launched, including:
Additionally, the Bitfinex team intends to launch Honey, an application for traders to enhance and customize the functionality of the Bitfinex platform, including running algorithmic orders. Prospective users can request early access by submitting an email address and Bitfinex username. Of note, instructions for running algorithmic orders using the open-source Honey Framework launched in 2018 can be seen here.