Ethena is an Ethereum-based protocol that issues a synthetic dollar stablecoin. Its native stablecoin, USDe, has grown to become the third-largest in the world by market capitalisation, trailing only Tether (USDT) and Circle (USDC). Its governance token, ENA, was first listed on the South Korean exchange Bithumb's Korean won market on 25th February 2025, and has since become available on Upbit and Coinone as well.

Origins

Guy Young, the founder of Ethena Labs, came not from the crypto world but from a background in hedge funds and investment banking. Having watched the collapse of the Terra-Luna ecosystem in 2022, he set about identifying ways to address the structural vulnerabilities of existing algorithmic stablecoins. His answer was what he called an "Internet Bond": rather than backing a stablecoin with fiat currency reserves or relying on algorithmic pegging mechanisms, he would tokenise the derivatives-hedging strategies long used by hedge funds, making them accessible to anyone with a crypto wallet. Ethena raised $6m in seed funding in July 2023, went on to complete further rounds, and launched its mainnet in early 2024 having accumulated $119.5m in total funding.

How It Works

USDe is minted when a user deposits collateral in the form of cryptocurrencies such as Ether or Bitcoin. Simultaneously, the protocol opens an equivalent short (sell) position in the derivatives market, offsetting the price risk of the underlying collateral — a technique known as delta hedging. This is fundamentally different from USDT or USDC, which maintain their dollar pegs simply by holding fiat currency in bank accounts. The structure allows USDe holders to earn returns from two sources at once: staking yields on the collateral assets and funding rates from the short derivatives positions (a premium that long traders pay to short sellers in perpetual futures markets). At its peak, this combination generated annualised yields of over 20%, drawing considerable attention. ENA, the protocol's governance token, gives holders a say in decisions affecting USDe's expansion and policy parameters. Ethena has also been broadening its ecosystem by deepening integrations with major decentralised finance (DeFi) protocols such as Curve, Uniswap, and Aave, and is developing an application that would allow users to deposit, pay with, and transfer USDe directly within Telegram.

Performance and Controversy

Ethena's biggest test came on 11th October 2025, in what has become known in the Korean crypto community as the "1011 incident". During a broad market sell-off, the price of USDe on the Binance exchange momentarily collapsed from $1 to $0.65. Guy Young swiftly characterised the episode as "an isolated incident on Binance, not a global de-pegging." His explanation: Binance had been using its own order book — which had thin liquidity at the time — as a price oracle rather than drawing on external price feeds, producing a severely distorted reading. On other platforms, including Curve, Fluid, and Uniswap, some $2bn worth of USDe was redeemed normally over the 24-hour period, with price deviations remaining below 0.3%. Some observers, however, have raised the possibility that Binance's "unified account" feature was exploited in a co-ordinated attack. In the aftermath, USDe's total value locked (TVL) fell from a peak of $14.8bn in October to roughly $7bn within two months.

Regulatory risk, too, remains live. Germany's Federal Financial Supervisory Authority (BaFin) has ordered Ethena GmbH to cease operations within the European Union for failing to comply with the bloc's Markets in Crypto-Assets (MiCA) regulation. The deeper problem is structural: as a synthetic stablecoin, USDe does not fit neatly into the regulatory frameworks designed for conventional fiat-backed stablecoins, and that ambiguity is unlikely to be resolved quickly.

Assessment

*Investment risk: ★★★★☆* The protocol's reliance on centralised exchanges and price oracles, combined with significant regulatory uncertainty, makes this a high-risk proposition.

*Technical maturity: ★★★☆☆* The underlying mechanism has been validated in normal conditions, but the 1011 incident exposed ongoing weaknesses in oracle design and liquidity management.

*Ecosystem scalability: ★★★★☆* Integrations with major DeFi protocols and the forthcoming Telegram payment application point to steady expansion of use cases.

*Overall interest: ★★★★☆* Having secured a position as the world's third-largest stablecoin, Ethena continues to command close attention from the market.