Lido Liquid Staking is a protocol on Ethereum that lets anyone stake ETH while keeping a tradable, usable claim on the deposit. Instead of committing 32 ETH and operating validator hardware around the clock, a participant sends any amount of ETH to the protocol and receives stETH in return. Lido Liquid Staking pools those deposits, distributes them across a broad set of professional and community validators, and channels the resulting staking rewards back to stETH holders.
Ordinary staking carries a cost that is easy to overlook. Capital locked behind a validator cannot be used for anything else, and the operational burden of key management falls on the staker. Lido Liquid Staking was designed to remove both frictions at once. The stETH token it issues tracks the underlying staked balance and its accrued rewards, yet remains free to move, trade, lend, or post as collateral elsewhere on Ethereum. That combination of staking yield and liquidity is what the word "liquid" in Lido Liquid Staking refers to.
Launched in December 2020, shortly after the Ethereum Beacon Chain went live, Lido Liquid Staking grew into one of the largest protocols in decentralized finance measured by value deposited, and stETH became one of the most widely integrated assets in on-chain lending and trading markets. The sections that follow walk through the mechanics, the token family, the fee model, the governance structure, and the risks that anyone considering Lido Liquid Staking should weigh before depositing.