How Does ether.fi Stake (eETH/weETH) Work?

eETH rebasing liquid staking token: deposit ETH, receive eETH backed by validator stakes

Standard liquid staking model (Lido-pattern). Users deposit ETH into ether.fi's LiquidityPool contract, receive eETH (rebasing). Balance formula: TotalPooledEth x (shares/totalShares). 90% of rewards to stakers, 5% to node operators, 5% to protocol treasury. eETH launched November 2023.

weETH non-rebasing ERC-4626 wrapper for DeFi composability

Standard wrapped LST pattern. weETH wraps eETH as a value-accruing non-rebasing token, compatible with Aave, Morpho, Pendle, Balancer, Uniswap V3 as collateral. OFT adapter enables cross-chain deployments on Arbitrum, Base, and others.

Native EigenLayer restaking at protocol level — all eETH validators natively restaked into EigenLayer

Novel: Protocol-level native restaking (not LST-restaking). ether.fi validators are native restakers in EigenLayer — ETH is staked and restaked simultaneously, bypassing LST withdrawal delays. This enables DeFi composability of eETH while still earning AVS rewards. As of May 2026, ether.fi operators have not yet opted into EigenLayer slashing modules per Chaos Labs governance analysis.

Non-custodial ECIES-encrypted validator key management with IPFS storage

Novel: ECIES public-key encryption of validator keys with IPFS storage and on-chain hash commitment. Operators decrypt via shared secret without ever holding plaintext keys. Enables permissionless node operator participation while maintaining key security. DVT integration with SSV Network in progress.

EtherFiOracle permissioned committee for eETH exchange rate and reward reporting

Permissioned multi-party committee oracle aggregates beacon chain rewards and EigenLayer restaking rewards, updating TotalPooledEth periodically. Used for reward accounting and eETH/weETH exchange rate. Not a real-time price feed — protocol-internal only.

If and when ether.fi operators opt into EigenLayer slashing modules, an AVS slashing event would reduce eETH's TotalPooledEth proportionally for all holders simultaneously. A large slashing event could trigger mass exits, overwhelming the liquidity buffer and causing eETH to trade at a discount — creating a feedback loop of forced liquidations. As of May 2026, operators have not yet opted in (per Chaos Labs governance analysis), but the architecture enables this risk and opt-in is operator-controlled.

Any eETH depeg (from slashing or withdrawal queue pressure) propagates immediately to all weETH-collateralized positions. Aave, Morpho, and Pendle liquidations would occur simultaneously, creating a self-reinforcing sell cascade as liquidators dump weETH into thin markets.

ether.fi's withdrawal mechanism bypasses EigenLayer's 7-day unbonding only when the liquidity pool holds sufficient ETH buffer. During a market stress scenario where both the liquidity buffer is drained AND EigenLayer unbonding is needed, users face the full 7-day delay — precisely when they most need to exit.

If validator key management fails (IPFS availability, ECIES implementation bug, or key compromise), affected validators could be slashed both on Ethereum consensus layer AND by EigenLayer AVSs simultaneously — a double-slashing scenario amplifying losses beyond standard validator risk.