Crypto
2 min read

Restaking

Reusing already-staked ETH (or its liquid receipt) to secure additional protocols, earning extra rewards in exchange for accepting additional slashing risk. Pioneered by EigenLayer.

How restaking works

The mechanic, popularized by EigenLayer:

  1. Validator stakes ETH on Ethereum normally.
  2. Opts into EigenLayer by registering staked ETH with restaking contracts.
  3. Commits to provide additional services to "Actively Validated Services" (AVSs).
  4. Earns extra rewards from AVSs in exchange for accepting additional slashing risk.
  5. Same staked ETH secures Ethereum and additional protocols simultaneously.

This stacks security commitments, multiplying validator rewards while increasing risk.

Why restaking matters

The key thesis:

  • New protocols need security — historically achieved through their own token's staking.
  • Bootstrapping security with new tokens is expensive and slow.
  • Restaking provides shortcut — new protocols rent Ethereum's security pool.
  • Validators capture additional revenue without buying new tokens.

This represents a meaningful primitive — shared security between Ethereum and new protocols.

Major restaking protocols

A few:

  • EigenLayer — pioneer; dominant by TVL.
  • Symbiotic — competitor with different design.
  • Babylon — restaking for Bitcoin.
  • Various LRT protocols — built on top of EigenLayer.

The category emerged in 2024 and has grown rapidly.

What's secured by restaking

AVSs include:

Several dozen AVSs exist or are in development.

Liquid restaking tokens

A major derivative category:

  • LRT protocols (ether.fi, Renzo, Kelp, Puffer) accept user deposits.
  • Restake on EigenLayer on user's behalf.
  • Issue liquid tokens representing the restaked position.
  • Used across DeFi as collateral, in pools.

LRTs grew rapidly in 2024, with combined TVL in billions.

Risks specific to restaking

Several layered risks:

  • Standard staking risks.
  • AVS-specific slashing for misbehavior in restaked services.
  • Cascading slashing risk — single event affecting multiple validators.
  • Centralization concerns — large pools have advantages.
  • Untested in stress.

Critics worry about systemic effects in extreme scenarios.

What individuals should know

For users:

  • Restaking adds yield but also risk.
  • LRTs simplify participation but stack risks.
  • Don't over-allocate to restaking-related positions.
  • Understand the multi-layer risk picture.

For investors:

  • Restaking infrastructure is one of the major recent crypto innovations.
  • Specific protocols vary in maturity and risk.
  • Long-term durability depends on AVS demand and slashing performance.

Restaking represents an important architectural experiment in crypto. Whether it produces durable additional security or becomes a transient cycle depends on factors still being determined.