What is Ethena USDe? How the synthetic dollar works
Concepts & Education
24 Sep 2026

What is Ethena USDe? How the synthetic dollar works

Ethan Luc
Written by Ethan Luc
Stablecoins
Stablecoin Yield
DeFi Yield
Risk Management

Ethena's USDe holds $1 through a mix of liquid stablecoins and crypto paired with short futures, and its staked version, sUSDe, earns from funding rates and reserve income.

USDe is a synthetic dollar issued by Ethena. It aims to hold $1 without being backed purely by cash in a bank: most of its backing is liquid stablecoins, and the rest is crypto such as BTC and ETH paired with short futures positions of the same size, so price moves cancel out. About $4.9 billion was in circulation on 23 September 2026, according to DefiLlama, down from a peak of $14.8 billion in October 2025.

How USDe holds its peg

Ethena's docs describe two kinds of backing. Stable assets, such as stablecoins and short-dated real-world assets, hold their value directly. Volatile assets, such as BTC and ETH, are paired with short perpetual futures of roughly equal size, a delta-neutral position whose value doesn't change when the crypto price moves. It's the same basis trade covered in our bitcoin yield guide.

On 23 September 2026 Ethena's transparency dashboard showed $4.92 billion of backing:

Backing

Share, 23 Sep 2026

Liquid stablecoins

80.5%

BTC, hedged

10.3%

ETH, hedged

7.8%

SOL, XRP, BNB and gold, hedged

1.3%

The mix shifts with market conditions. When funding rates are low, Ethena moves more of the backing into liquid stablecoins earning close to the Treasury rate.

USDe vs sUSDe

  • USDe is the dollar token. Holding it earns nothing directly.
  • sUSDe is USDe staked with Ethena. It earns the protocol's income: funding payments from the short futures, plus returns on the stablecoin backing. On 23 September 2026 sUSDe paid 4.67%, with a 30-day average of 4.72% (DefiLlama).
  • Unstaking has a cooldown, which read 1 day on 23 September 2026. Since March 2026 it varies between 1 and 7 days depending on how much of the backing sits in liquid stablecoins.

Custody

The hedged crypto sits with off-exchange settlement providers, including Copper, Ceffu, Anchorage and Fireblocks, rather than on the exchanges themselves. The exchanges see the collateral for margin, and profits and losses are settled with them regularly. That limits the exposure if an exchange fails (Ethena custodial risk).

USDe's track record

  • October 2025: during a $19 billion liquidation cascade on 10 October, USDe fell to about $0.65 on Binance while holding near $1 on other venues and onchain. Ethena attributed it to Binance's internal price feed (CoinDesk). Supply then fell from $14.8 billion as funding rates dropped and holders redeemed.
  • Germany, 2025: BaFin ordered Ethena's German entity to wind up its USDe business in April 2025, citing deficiencies under MiCA, and ran a redemption process for affected holders (BaFin).

Ethena also issues USDtb, a separate stablecoin backed by dollars and BlackRock's BUIDL fund, issued by Anchorage Digital Bank.

How USDe compares with other stablecoins

Stablecoin

Issuer

Regulation

Supply, 23 Sep 2026

Backing

Main chains

USDT

Tether

No US regulator; HQ in El Salvador

$183B

Mostly Treasuries, plus gold, bitcoin and loans

Tron, Ethereum

USDC

Circle

OCC national trust charter; MiCA

$75B

Cash and a government money market fund

Ethereum, Solana

USDe

Ethena

Not a regulated payment stablecoin

$4.9B

Stablecoins plus crypto hedged with short futures

Ethereum

USD1

World Liberty Financial, with BitGo

OCC trust charter (conditional)

$4.4B

Cash and government money market funds

Ethereum, BNB Chain, Solana

USDG

Paxos

MAS (Singapore); MiCA via Finland

$3.2B

Cash and cash equivalents

X Layer, Robinhood Chain, Solana

PYUSD

Paxos, for PayPal

OCC national trust charter

$2.8B

Dollar deposits, Treasuries and cash equivalents

Ethereum, Solana

RLUSD

Ripple (Standard Custody)

NYDFS trust charter

$2.4B

Dollar deposits, Treasuries and cash equivalents

Ethereum, XRP Ledger

Supply figures from DefiLlama. None of these issuers pays holders interest directly; returns come from lending, platform rewards or, for USDe, staking into sUSDe. The two largest are compared in depth in our USDC vs USDT guide.

Risks

  • Negative funding: when short positions pay rather than earn, income falls. Ethena keeps a reserve fund, about $62 million on 23 September 2026, to absorb losses
  • Exchange and custody risk: the hedges depend on exchanges and settlement providers performing
  • Liquidity: sUSDe unstaking takes up to 7 days, and secondary markets can trade below $1 in stress
  • Regulatory: USDe isn't a regulated payment stablecoin in the US or EU

Always make sure to do your own research and be aware of the above and any other risks before depositing.

Frequently asked questions

What does USDe stand for?
It's Ethena's US dollar token. Ethena calls it a synthetic dollar.

Is USDe a stablecoin?
It's designed to hold $1, and it's backed by a mix of stablecoins and hedged crypto, so it isn't a fiat-backed stablecoin like USDC.

Where does sUSDe yield come from?
Funding payments on the short futures positions and returns on the stablecoin backing. It changes with market conditions.

What is the current USDe rate?
USDe itself earns nothing. sUSDe paid about 4.7% on 23 September 2026, and the rate moves daily.

Has USDe ever depegged?
It traded at about $0.65 on Binance on 10 October 2025 while holding near $1 elsewhere, and recovered afterwards.

Is USDe safe?
It carries funding, exchange, custody and regulatory risks that fiat-backed stablecoins don't, offset in part by its reserve fund and off-exchange custody.

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