LEO token (UNUS SED LEO) is the coin Bitfinex parent iFinex sold for $1 billion in May 2019, amid claims it had lost about $850 million through a payment processor. It is still live in October 2026 and ranks #17 on CoinGecko with a market cap of about $8.31 billion on 26 October 2026, yet under $200,000 of it traded that day on venues CoinGecko counts. Two promises drive it: iFinex buys back LEO with at least 27% of monthly gross revenue, and pledged at least 80% of net funds recovered from the 2016 Bitfinex hack to burn more.
Key takeaways
- LEO was sold privately at 1 USDt per token in May 2019 and served as emergency financing for iFinex.
- The white paper commits iFinex to monthly buybacks worth at least 27% of its consolidated gross revenue, until no tokens remain in circulation.
- A US court approved returning 94,643 seized bitcoin from the 2016 hack to Bitfinex in January 2025; as of October 2026, we found no Bitfinex announcement of a completed hack-recovery LEO burn.
- LEO exists on Ethereum and EOS, and the token sale excluded US persons.
- A large market cap sits on very thin trading, concentrated on Bitfinex.
LEO token in brief
The name is Latin for “one but a lion”, and the token is unusual among exchange coins because its most important feature is a legal and financial history rather than a blockchain. LEO gives fee reductions on Bitfinex, but its supply is shaped by iFinex’s revenue and by the outcome of a criminal case. For how LEO fits alongside OKB, BGB and other platform coins, see our exchange tokens overview. You can also find LEO in the exchange and ecosystem tokens section of the crypto coin directory.
| Key fact | LEO |
|---|---|
| Ticker | LEO (UNUS SED LEO) |
| Issued | May 2019, by an iFinex subsidiary |
| Chains | Ethereum (ERC-20) and EOS; no chain of its own |
| Initial sale | Up to 1 billion tokens at 1 USDt each |
| Supply on 26 Oct 2026 (CoinGecko) | About 920M circulating, about 985M total; no new issuance |
| Status, October 2026 | Live; monthly buybacks continuing per iFinex’s commitment |
| Official site (plain text) | bitfinex.com |
Why Bitfinex created LEO in 2019
On 25 April 2019 the New York Attorney General’s office went to court alleging that Bitfinex had lost about $850 million of client and corporate funds held by Crypto Capital, a Panama-based payment processor, and had covered the gap using at least $700 million from the reserves of Tether, an affiliated company. Bitfinex and Tether disputed the characterisation, saying the Crypto Capital funds had been seized and safeguarded rather than lost. The case ended in February 2021 with a settlement in which the companies paid $18.5 million without admitting wrongdoing.
Within weeks of the allegation, iFinex circulated a white paper for a private token sale. It offered up to 1 billion LEO at 1 USDt each to invited, non-US buyers, with proceeds usable for “working capital and general business purposes”, including repayment of debt and recapitalisation. iFinex announced it had raised $1 billion. In practice, LEO was a way to raise capital quickly from the exchange’s own community, with buyback commitments in place of equity rights.
How the 27% buyback-and-burn works
The white paper’s core commitment reads: each month, iFinex and its affiliates “will buy back LEO from the market equal to a minimum of 27% of the consolidated gross revenues of iFinex” from the previous month, at prevailing market prices, until no tokens are in commercial circulation. Revenue from Ethfinex, which had its own token, was excluded. LEO used to pay fees can count toward the commitment. Purchased tokens are burned, reducing supply.
The white paper also set two extra burn triggers:
| Source of funds | Committed share for LEO buyback and burn | Deadline |
|---|---|---|
| iFinex monthly gross revenue | At least 27% | Monthly, indefinitely |
| Net funds recovered from Crypto Capital | 95% | Within 18 months of recovery |
| Net funds recovered from the 2016 Bitfinex hack | At least 80%, after redeeming RRTs and costs | Within 18 months of recovery |
Two features are worth understanding. First, “gross revenue” is calculated by iFinex, a private company that does not publish audited accounts, so holders rely on its reporting. Second, the burn tracks revenue rather than profit, so in busy months more LEO is bought. Our token burn guide explains why burns can reduce supply without guaranteeing any price outcome. Independent tracking suggests the regular burn is slow relative to supply: one analysis published in July 2026 estimated about 638,000 LEO retired over 90 days, a fraction of a percent of the float. We could not verify that estimate against an official iFinex report.
The 2016 hack and the recovery pledge
This is what makes LEO different from every other exchange token. In August 2016 a hacker stole about 119,754 bitcoin from Bitfinex. The exchange spread the loss across customer accounts and issued BFX tokens, later converted partly into equity and into Recovery Right Tokens (RRTs), which entitle holders to a share of any recovered funds.
The timeline since then, from US Department of Justice and court records as reported:
- February 2022: US authorities arrested Ilya Lichtenstein and Heather Morgan in New York and seized roughly 94,000 bitcoin linked to the hack, then the largest financial seizure in DOJ history.
- November 2024: Lichtenstein, who pleaded guilty to money laundering conspiracy, was sentenced to five years in prison; Morgan received 18 months.
- January 2025: A federal judge approved returning 94,643 BTC, plus forked coins, to Bitfinex in kind. The court found Bitfinex and its users did not qualify as “victims” under the Mandatory Victims Restitution Act, but allowed return through the defendants’ plea agreements.
- 2026: On-chain watchers reported addresses linked to the US Marshals Service moving small amounts of the seized bitcoin as restitution, about 8.2 BTC in April 2026 and about 264.86 BTC on 6 October 2026.
What has not been publicly confirmed, as of our check on 26 October 2026, is that Bitfinex has received the bulk of the 94,643 BTC or carried out a hack-recovery LEO burn. Bitfinex has said it will first redeem outstanding RRTs. When the funds do arrive, the white paper commits at least 80% of net recoveries to LEO buybacks within 18 months. How large that is in LEO terms would depend on bitcoin’s and LEO’s prices at the time, which is why we give no figure here.
The hack and its aftermath also feature in our list of the biggest crypto scams and thefts.
Where LEO trades and why volume is thin
LEO’s ranking can surprise people who check its trading activity. On 26 October 2026 CoinGecko reported 24-hour volume of roughly $115,000 against a market cap above $8 billion. Of the venues CoinGecko lists, Bitfinex carries most genuine volume, with small markets on OKX, Gate and a Uniswap pool. Another listed venue reported much larger volume that CoinGecko’s own headline figure does not appear to count, so check how a data site treats each exchange before drawing conclusions.
Several reasons explain the gap. Market cap is simply price multiplied by circulating supply, as our market cap explainer sets out, and says nothing about how much could be sold at that price. Most LEO is believed to be held by long-term holders and entities connected to iFinex; an independent analysis in mid-2026 argued that a large company-controlled wallet that has never moved is still counted as circulating, which we could not confirm. The steady monthly buyback also gives the market a consistent buyer. In short, LEO’s price reflects a small amount of trading, so it may not hold for large orders.
Access is limited too. The original sale excluded US persons, and Bitfinex does not serve US residents, so US-based investors generally cannot use LEO’s fee benefits. The white paper’s benefits included a 15% cut to taker fees on crypto pairs for all holders, with bigger reductions for larger balances, though Bitfinex says fee reductions can change at its discretion.
Risks
- Issuer opacity. Burns are based on revenue figures that iFinex calculates and does not publish as audited accounts.
- Legal and timing uncertainty. The hack-recovery burn depends on funds reaching Bitfinex; timing and net amounts are outside holders’ control.
- Concentration. Holdings appear concentrated, and a large share of supply may never trade.
- Liquidity. Thin daily volume means large sales could move the price sharply.
- Affiliated-company risk. iFinex and Tether share ownership; problems at either could affect confidence in the other.
- Regional restrictions. US persons and residents of some other jurisdictions cannot use Bitfinex.
FAQ
What does UNUS SED LEO mean?
UNUS SED LEO is Latin for “one, but a lion”, adapted from one of Aesop’s fables in which a lioness, mocked for having only one cub, replies that it is a lion. Bitfinex chose the name in 2019 to suggest a single strong token. The ticker is shortened to LEO on exchanges and data sites.
Is LEO crypto a stablecoin?
No. LEO crypto was sold at 1 USDt per token in 2019, but it has never been pegged to the dollar. Its price floats on the market and traded above $9 per token on 26 October 2026, according to CoinGecko. The 1 USDt figure was only the sale price.
Did Bitfinex get the hacked bitcoin back?
A US court approved returning 94,643 bitcoin from the 2016 hack to Bitfinex in January 2025. Since then, small transfers described as restitution have been reported, including about 264.86 BTC in October 2026. As of 26 October 2026 we found no Bitfinex announcement confirming it had received the full amount or completed a recovery-funded LEO burn.
How often are LEO tokens burned?
Under the white paper, iFinex buys LEO every month with at least 27% of the previous month’s consolidated gross revenue and burns it. Separate, larger burns are promised when funds from the 2016 hack (at least 80% of net recoveries) or Crypto Capital (95%) are recovered, each within 18 months of recovery. Bitfinex publishes burn activity through its announcements.
Crypto is volatile and risky; this is education, not financial advice. Do your own research.