USDE
Ethena's delta-neutral synthetic dollar — earning funding-rate yield without fiat reserves.
USDe is a synthetic dollar issued by Ethena Labs that maintains its $1 peg through a delta-neutral strategy: long spot crypto collateral (primarily liquid-staked ETH and BTC) plus a matched short perpetual futures position on centralized exchanges. The two legs cancel price exposure, so USDe's backing stays approximately $1 regardless of market direction, while funding payments from the short leg and staking yield from the spot leg flow to holders of sUSDe (staked USDe). As of June 2026, USDe supply was approximately $4.4B per Ethena's transparency dashboard, and sUSDe 7-day trailing APY was 7.1% — down from an April 2026 peak of 9.4% as perpetual funding compressed through Q2. USDe is not a fiat-backed stablecoin and carries distinct funding-rate and counterparty risks absent from USDC or USDT.
- USDe supply approximately $4.4B in June 2026 per Ethena's dashboard, with sUSDe supply approximately $3.1B (~70% stake ratio).
- Insurance fund of approximately $73M (~1.7% of supply) as of June 2026, to cover the protocol during periods of negative funding rates.
- sUSDe 7-day trailing APY: 7.1% as of June 2026 (9.4% in April, 11.8% 90-day average) — substantially above Sky Savings Rate (3.75%) but variable with perpetual market conditions.
- Listed as collateral on Aave V3, Morpho, Spark, and Pendle; Bitwise deployed over $260M in a Jupiter Lend (Solana) USDe market in May 2026 at yields exceeding 20%.
- Regulatory risk: USDe is classified by most regulators as a structured crypto product rather than a stablecoin; US and EU access restrictions apply. Ethena has not marketed USDe as a cash equivalent.
Frequently asked questions
What happens to USDe if perpetual funding rates go negative?
When funding turns negative, Ethena's short position pays funding rather than receiving it. This reduces or eliminates sUSDe yield and, if sustained and severe, can cause sUSDe APY to go to zero or slightly negative. The insurance fund covers the shortfall up to a point, but if it is exhausted and funding remains deeply negative, the peg could come under pressure. This scenario has not occurred at scale but is the core systemic risk of the model.
Is USDe a stablecoin?
Ethena calls it a 'synthetic dollar' rather than a stablecoin, reflecting its non-fiat-backed mechanism. It is designed to hold $1 and has done so closely since launch in February 2024, but its stability depends on derivatives market dynamics and counterparty execution rather than cash reserves. Regulators in the EU and US treat it differently from fiat-backed stablecoins, and it is not suitable as a direct cash equivalent.
What is the difference between USDe and sUSDe?
USDe is the base synthetic dollar token that tracks $1. It earns no yield on its own and is used as collateral or for trading. sUSDe is the staked version: holders deposit USDe into a vault and receive sUSDe, an ERC-4626 token whose exchange rate rises as the protocol's yield (funding + staking) accrues. To earn Ethena's yield, you must stake USDe into sUSDe; simply holding USDe earns nothing.