What is Restaking?
Restaking is a mechanism where staked ETH (or Liquid Staking Tokens) is reused as collateral to secure additional protocols beyond Ethereum’s base consensus layer. Pioneered by EigenLayer, restaking lets validators earn extra yield by opt-in to securing Actively Validated Services (AVSs) — oracle networks, bridges, DA layers, and more.
Think of it like this: your staked ETH already proves you’re financially committed to Ethereum. Restaking lets you put that same stake to work securing other services, earning additional rewards.
How Restaking Works
Native Restaking
1. You run a validator node (32 ETH staked on Ethereum)
2. You opt into EigenLayer
3. Your stake now secures both Ethereum AND selected AVSs
4. You earn: staking yield + AVS rewards
5. Risk: If you misbehave on an AVS, your stake gets slashedLiquid Restaking (LRT)
Most users don’t run validators. Liquid Restaking Tokens (LRTs) make restaking accessible:
1. You stake ETH → get stETH (Lido)
2. You deposit stETH into EigenLayer → get weETH / eETH
3. weETH is a liquid token representing your restaked position
4. weETH can be used in DeFi (lending, LP, etc.)
5. You earn: staking yield + restaking rewards + DeFi yieldPopular LRTs: weETH (Ether.fi), ezETH (Renzo), rswETH (Swell).
What Are AVSs (Actively Validated Services)?
AVSs are services that need decentralized validation but don’t want to build their own validator set from scratch:
| AVS Example | What It Secures | Restaking Use |
|---|---|---|
| EigenDA | Data availability layer | Validators attest to data |
| Bridge protocols | Cross-chain bridges | Validators verify bridge state |
| Oracle networks | Price feeds | Validators report prices |
| Rollup sequencing | L2 transaction ordering | Validators ensure fair ordering |
| TEE networks | Trusted execution | Validators verify computation |
Without restaking, each service would need its own token and validator set. Restaking lets them tap into Ethereum’s existing economic security.
The EigenLayer Ecosystem
EigenLayer is the dominant restaking protocol:
- Launched mainnet in 2024
- TVL peaked at $15B+ (making it one of the largest DeFi protocols)
- Over 15+ AVSs actively building on the platform
- Eigen token (EIGEN) for governance and slashing coordination
Other restaking protocols: Symbiotic, Karak, Exocore (competitors emerging).
Risks of Restaking
| Risk | Description |
|---|---|
| Additional slashing | Misbehavior on an AVS can slash your ETH — beyond Ethereum’s own slashing |
| Correlated slashing | If many validators restake to the same AVS and it fails, massive slash events cascade |
| Smart contract risk | Restaking adds layers of smart contracts — each a potential vulnerability |
| Liquidity risk | LRTs may lose their peg during mass withdrawals |
| Point farming speculation | Many restaked purely for airdrops, inflating TVL artificially |
The Correlation Problem
If 40% of Ethereum validators restake to the same AVS, and that AVS has a bug causing slashing:
AVS bug → mass slashing event
→ 40% of validators penalized
→ Ethereum consensus itself weakened
→ Cascading failure across the ecosystemThis “systemic risk” is the primary concern raised by Ethereum researchers about restaking.
Restaking vs Liquid Staking
| Aspect | Liquid Staking (LST) | Restaking (LRT) |
|---|---|---|
| Secures | Ethereum consensus | Ethereum + AVSs |
| Reward source | Staking yield | Staking + AVS rewards |
| Additional risk | Protocol risk (Lido) | Protocol + AVS + slashing risk |
| Token | stETH, rETH, cbETH | weETH, ezETH, rswETH |
| Yield | ~3-4% APY | ~3-4% + 1-5% AVS rewards |
Restaking is essentially leverage on staking yield — more reward, more risk.
Frequently Asked Questions
Q: Is restaking safe? A: It adds risk layers. Your principal (ETH) is exposed to AVS slashing events, smart contract bugs in EigenLayer, and LRT protocol risks. Evaluate each AVS you opt into.
Q: What’s the difference between EigenLayer and Lido? A: Lido is a liquid staking protocol (stake ETH, get stETH). EigenLayer is a restaking protocol (take stETH or ETH, secure AVSs). They’re complementary — many users stake with Lido, then restake with EigenLayer.
Q: Can I lose all my ETH through restaking? A: Theoretically yes, through catastrophic slashing. In practice, AVS slashing parameters are designed to be proportional (not total loss). But the risk is real.