Liquid Staking

Liquid staking solves a fundamental trade-off in Proof of Stake networks: traditionally, staked tokens are locked and illiquid, meaning stakers must choose between earning staking rewards and using their assets in DeFi. Liquid staking protocols accept user deposits, stake them with validators, and issue liquid staking tokens (LSTs) that represent the staked position plus accumulated rewards.

Lido, the largest liquid staking protocol, illustrates the concept: users deposit ETH and receive stETH (staked ETH), which accrues staking rewards (~3-4% APY) while remaining fully liquid. stETH can be used as collateral in Aave, traded on DEXs, or deposited in yield farming strategies — effectively allowing users to earn staking rewards AND additional DeFi yields simultaneously.

Liquid staking has grown to dominate the staking landscape, with Lido alone holding ~30% of all staked ETH. This concentration raises decentralization concerns — if one protocol controls too much of the validator set, it could theoretically influence the network. Additionally, LSTs carry smart contract risk, depeg risk during market stress (stETH briefly traded below ETH in the 2022 crash), and potential regulatory scrutiny. Despite these risks, the capital efficiency of liquid staking makes it one of DeFi's most important innovations, with total value exceeding $30 billion across protocols like Lido, Rocket Pool, and Jito (Solana).