Ethena USDe

Ethena USDe (USDE) is a synthetic dollar issued by the Ethena protocol. It aims to track the value of one US dollar, but it works differently from fiat-backed stablecoins such as USDT or USDC: instead of holding dollars in a bank, USDe maintains its peg through a market-neutral trading strategy known as delta hedging.

USDe launched in 2024, developed by Ethena Labs, and grew rapidly into one of the larger dollar-pegged assets in crypto. The protocol describes USDe as a "synthetic dollar" rather than a stablecoin, emphasizing that its backing consists of crypto collateral and derivatives positions rather than bank deposits.

How the peg works

When USDe is minted, the protocol holds crypto collateral — such as staked ether and other assets — and simultaneously opens short positions in perpetual futures of equivalent size. If the collateral's price rises, the short position loses a matching amount, and vice versa, so the combined portfolio stays roughly stable in dollar terms. The strategy can also generate yield from staking rewards and from the funding rates that perpetual futures traders pay, which the protocol passes on to users who stake USDe as sUSDe.

USDe has no fixed maximum supply; tokens are minted and redeemed as collateral flows in and out of the protocol. It circulates across many networks, including Ethereum and a broad set of layer-2 and alternative chains, and is used in DeFi as a dollar-denominated trading, collateral, and yield asset. The design carries its own distinct risks — including exchange counterparty exposure and periods of negative funding rates — which differ from the reserve risks of fiat-backed stablecoins.