Staking vs Restaking: EigenLayer and the Restaking Ecosystem

Ethereum Staking: The Foundation

Ethereum's transition from Proof of Work to Proof of Stake (The Merge, September 2022) made ETH staking the foundational yield-generating mechanism for the Ethereum ecosystem. Validators lock 32 ETH as collateral and run validator software that proposes and attests to blocks. In exchange, validators earn protocol rewards (~3–4% APY from issuance and priority fees) and may earn MEV income (through MEV-Boost participation). Validators who behave maliciously or negligently face slashing — a portion of their staked ETH is destroyed as a penalty.

For most users, direct solo staking (running a validator with 32 ETH) is operationally complex and capital-intensive. Liquid staking protocols (Lido, Rocket Pool, Coinbase) allow any user to stake any amount of ETH and receive a liquid staking token (stETH, rETH, cbETH) representing their staked position — earning staking yield while retaining liquidity.

What Is Restaking?

EigenLayer (launched in stages from 2023) introduced the concept of restaking: allowing staked ETH (or liquid staking tokens) to simultaneously secure not just Ethereum itself but also additional decentralised networks and services — called Actively Validated Services (AVSs). An AVS is any off-chain or cross-chain service that requires a decentralised trust network — oracle networks, data availability layers, cross-chain bridges, keeper networks, and new blockchain networks all qualify.

The core insight: Ethereum's $50B+ in staked ETH has accumulated enormous cryptoeconomic security. Building a new decentralised network from scratch (with its own token-based security) requires bootstrapping validator trust and token value from zero — an expensive "cold start" problem. EigenLayer allows new services to borrow Ethereum's existing security by having Ethereum validators opt-in to also validate the new service, in exchange for additional rewards. Validators who misbehave on the AVS risk slashing on their original ETH stake — providing real cryptoeconomic security to the AVS.

How EigenLayer Works

EigenLayer operates through two primary mechanisms:

Native restaking: Solo validators or node operators running Ethereum validators point their withdrawal credentials to EigenLayer's smart contracts — allowing EigenLayer to impose additional slashing conditions on their ETH. The restaked ETH simultaneously secures Ethereum (as a normal validator) and any opted-in AVSs.

Liquid restaking (LST restaking): Users who hold liquid staking tokens (stETH, rETH, cbETH) can deposit them directly into EigenLayer's smart contracts, delegating the staking power to node operators who then validate AVSs on the depositor's behalf. This is the most accessible form of restaking — no node operation required.

Depositing into EigenLayer earns EigenLayer points (a precursor to the EIGEN token airdrop, which distributed in 2024) and additional yield from AVS rewards. EigenLayer has attracted over $15B in restaked TVL across native and LST restaking — making it one of the largest DeFi protocols by TVL within a year of launch.

Liquid Restaking Tokens (LRTs)

As EigenLayer deposits are not immediately withdrawable (unstaking queues apply), a new category of DeFi protocols emerged — liquid restaking token (LRT) protocols that allow users to deposit stETH or ETH into EigenLayer through them, receiving a liquid token in return (similar to how Lido issues stETH for staked ETH). Major LRT protocols: EtherFi (eETH), Renzo Protocol (ezETH), Puffer Finance (pufETH), Kelp DAO (rsETH). LRT tokens trade on DEXes, can be used as DeFi collateral, and enable users to exit their restaking position without waiting for EigenLayer's native withdrawal queue.

LRT protocols compete aggressively for restaker deposits by offering both EigenLayer points and their own native points/tokens — creating complex multi-layered reward stacking that attracted enormous capital during 2023–2024 through speculative airdrop farming as much as genuine yield generation.

EigenLayer AVS Examples

Early EigenLayer AVS deployments illustrate the protocol's scope:

• EigenDA: EigenLayer's own data availability layer, providing cheap high-throughput data availability for Ethereum L2 rollups (used by Mantle, Celo, and others as an alternative to Ethereum's native data availability).
• Lagrange: A ZK co-processor for smart contracts — enabling smart contracts to make verifiable off-chain computations secured by EigenLayer restakers.
• Witness Chain: A decentralised watchdog network verifying L2 rollup security using EigenLayer's cryptoeconomic security.

Restaking Risks: Additional Slashing

The core risk that distinguishes restaking from regular staking: additional slashing conditions. Regular ETH staking has well-defined slashing conditions (double-signing, equivocation) that careful node operators avoid with standard operational practices. Each AVS introduces additional slashing conditions specific to its requirements. A restaker opting into multiple AVSs is exposed to the slashing conditions of each — stacked slashing risk that is harder to model or predict than native ETH staking risk alone.

EigenLayer has implemented a "veto committee" to prevent malicious or buggy AVS slashing contracts from destroying restaker principal — but the cryptoeconomic security model depends on AVS code quality and honest governance. As AVS complexity grows, understanding the specific slashing conditions and auditing the AVS contracts before opting in becomes essential due diligence for sophisticated restakers.

Symbiotic and Karak: EigenLayer Competitors

Symbiotic (backed by Paradigm) and Karak are competing restaking protocols that allow restaking of assets beyond stETH/ETH — including USDC, wBTC, and LSTs from multiple chains. Their multi-asset restaking model potentially expands the total addressable market for restaking beyond purely ETH-aligned capital. As of 2025, both protocols have attracted significant TVL through aggressive points programs targeting the same airdrop-farming capital that powered EigenLayer's growth.

Summary

Ethereum staking and restaking represent a yield stack that has become increasingly complex and layered: base ETH staking (~3–4% APY) → liquid staking (adds liquidity and DeFi composability) → restaking via EigenLayer (adds additional AVS rewards at the cost of additional slashing exposure) → LRT protocols (adds liquidity to restaked positions with further airdrop incentives). For risk-conscious participants, the appropriate entry point depends on technical sophistication, risk tolerance for compounded slashing exposure, and realistic assessment of AVS reward economics beyond early points speculation. The restaking ecosystem represents one of DeFi's most innovative capital efficiency mechanisms — extending Ethereum's security to a growing ecosystem of new services — but the risk layering requires clear-eyed analysis rather than treating it as a free yield stack.