Lido is the largest liquid staking protocol in crypto — approximately 30% of all staked ETH runs through Lido. stETH, its liquid staking token, is the deepest DeFi collateral in the ecosystem and the reference LST that other protocols benchmark against. For any ETH holder who wants staking yield without giving up DeFi liquidity, Lido is the default choice.
What Lido actually is
Lido is a decentralized liquid staking protocol. Users deposit ETH; Lido's smart contracts delegate the ETH to a curated set of node operators; users receive stETH in return. stETH rebases daily to reflect accumulated staking rewards, so your balance grows automatically over time (or use wstETH, a non-rebasing wrapper preferred by DeFi apps).
Lido also operates liquid staking for Polygon (stMATIC) and previously for Solana (stSOL, since discontinued). ETH is the flagship product and represents 95%+ of Lido's TVL.
Fees and yield
- Protocol fee: 10% of staking rewards (5% to node operators, 5% to Lido DAO)
- Net APR: typically 3.5-4.5% depending on network conditions and MEV inclusion
- MEV inclusion: MEV-Boost rewards distributed to stakers via Lido validators
- Withdrawal: live since Shanghai fork (April 2023) — takes 1-5 days depending on queue
stETH APR consistently tracks solo staking APR minus the 10% Lido fee. For most users who value liquidity and integrations, that 10% fee is much less than the transaction cost of managing your own validator.
DeFi collateral status
stETH is arguably the single most important collateral asset in DeFi. It's accepted as collateral on Aave, Compound, Morpho, Spark, and most other lending protocols. It's deeply integrated in Curve pools, Uniswap, and every major DEX. It's used as base collateral for CDP stablecoins (crvUSD, sUSDe).
This DeFi integration depth is a moat: even if a "better" LST launched tomorrow, migrating stETH out of all its DeFi positions would take years. Lido's incumbent position is genuinely deep.
The decentralization concern
Lido's share of all staked ETH is the subject of ongoing debate in the Ethereum community. Currently around 30%, Lido has publicly committed to not exceed 33% (the "one-third" threshold beyond which Ethereum consensus assumptions weaken).
The Lido DAO has taken multiple steps to promote validator diversity — expanding to 40+ node operators (up from ~30 originally), participating in DVT (Distributed Validator Technology) experiments, and voting for various decentralization measures. The debate isn't fully resolved, but Lido is genuinely engaged with the concerns.
Security posture
- Non-custodial: smart contract holds staked ETH; users hold stETH
- Multiple audits: independent audits from Trail of Bits, ChainSecurity, Sigma Prime, others
- Bug bounty: $2M+ via Immunefi
- Track record: 4+ years operating without a critical exploit
- Slashing exposure: small pool of slashings across operator set; individual users bear proportional risk
Who should use Lido
- Any ETH holder wanting staking yield without giving up DeFi liquidity
- Users wanting the reference LST for DeFi collateral use
- Long-term ETH holders who don't want to operate their own validator
- DeFi users leveraging stETH as collateral for borrowing
Who should also check alternatives
- Decentralization purists: Rocket Pool (rETH) has permissionless node operator set
- Yield maximizers: Frax (sfrxETH) often shows higher APR
- Solo staker capability: run your own validator with 32 ETH via ethstaker.cc
Verdict
Lido is the default ETH liquid staking choice. stETH's DeFi integration depth is a moat that no competitor has matched. Decentralization concerns are real and worth understanding, but for individual holders, Lido delivers the best combination of yield, liquidity, and integrations.