Restaking is one of the most significant DeFi innovations since liquid staking. By 2026, EigenLayer and its ecosystem of restaking protocols have accumulated tens of billions in TVL. Here's the actual mechanics — without the marketing hype.
The Core Idea
When you stake ETH, you earn ~3-5% APY securing Ethereum. Your staked ETH is doing one job.
Restaking asks: could that same security guarantee be borrowed to secure other systems?
EigenLayer is the protocol that makes this possible. It lets Ethereum stakers "opt in" to also secure other networks — called Actively Validated Services (AVSs) — using the same staked ETH.
The staker earns extra rewards from the AVS on top of their base ETH staking yield. The AVS gets Ethereum-grade economic security without bootstrapping a new validator set.
How EigenLayer Actually Works
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Stake ETH or LSTs: You deposit ETH (or liquid staking tokens like stETH, rETH, cbETH) into EigenLayer's smart contracts.
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Opt into AVSs: You choose which AVSs to secure. Each AVS has its own rules, slashing conditions, and reward token.
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Run operator software (or delegate): You either run the operator node for each AVS, or delegate to an operator who does it for you. Most regular users delegate.
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Earn: Base ETH staking yield + AVS rewards (typically in the AVS's token).
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Slashing risk: If you or your operator violates an AVS's rules (incorrect data submission, downtime past threshold, signing invalid blocks), your staked ETH can be slashed. This is the core risk.
What Are AVSs?
Actively Validated Services are protocols that use EigenLayer's restaked ETH for their security. Examples:
EigenDA — EigenLayer's own data availability layer. Posts data availability proofs to Ethereum, cheaper than Ethereum calldata. Used by rollups as an alternative to ETH DA.
Hyperlane — Interchain messaging, securing cross-chain message passing with restaked ETH.
Lagrange — State proofs; cross-chain state verification with cryptographic guarantees.
Brevis — ZK coprocessor; allows on-chain use of historical state without full recomputation.
Ethos — Brings ETH security to Cosmos chains via restaking.
By 2026, there are dozens of AVSs with varying security requirements, reward profiles, and slashing conditions.
Liquid Restaking Tokens (LRTs)
Most users don't restake directly through EigenLayer. They use Liquid Restaking Protocols that:
- Deposit into EigenLayer on your behalf
- Automatically delegate to operators and optimize AVS selection
- Issue an LRT (liquid restaking token) representing your position
Major LRTs: eETH (ether.fi), ezETH (Renzo), pzETH (StakeStone), rsETH (KelpDAO), weETH.
Like with LSTs, you hold a token that accrues value over time as staking + restaking rewards compound.
The Real Risks
Slashing concentration: Your ETH can be slashed if your operator is malicious or buggy. One operator managing 10 AVSs creates 10x the slashing exposure. Choosing operators with conservative AVS selection matters.
Smart contract risk: EigenLayer contracts hold enormous TVL. A bug in any of the contracts (EigenLayer, the LRT protocol, the AVS contract) could be catastrophic.
LRT depeg risk: Like LSTs in 2022, LRTs can depeg from ETH value during withdrawals or panic selling. They're not always redeemable 1:1 instantly.
Reward token quality: Many AVS rewards come in small-cap tokens. If those tokens drop in value, the extra yield disappears.
Withdrawal delays: EigenLayer withdrawals have a 7-day delay for restaked ETH. You can't exit instantly.
The Yield Math
Approximate yields in 2026:
- Native ETH staking: ~3.5% APY
- Liquid staking (stETH): ~3.3% APY (minus Lido fee)
- Restaking via ether.fi (eETH): ~4-6% APY (staking + EigenLayer + AVS rewards)
- Aggressive restaking across many AVSs: up to 8-10% APY, but with meaningfully higher slashing risk
The extra yield is real. The question is whether the risk-adjusted return is worth it compared to just holding stETH.
Should You Restake?
Yes if: You're already staking ETH long-term, comfortable with some smart contract risk, and want to maximize ETH yield without active management.
No if: You're risk-averse, you need liquid access to your ETH, or you're not comfortable with slashing risk from operators you can't fully audit.
Middle path: Use a conservative LRT (ether.fi, which has insurance and restaker protections) with a single well-audited AVS rather than chasing max yield by opting into every AVS available.