What Is Lido? A Complete Guide to the Leading Liquid Staking Protocol
Lido is currently the largest liquid staking protocol in the crypto ecosystem, managing 9.17 million ETH (approximately $19.4 billion), accounting for 23% of all staked ETH on the Ethereum network. In simple terms: you deposit your ETH into Lido, the platform assigns your funds to professional node operators to run staking operations, and issues you a token receipt called "stETH". This receipt can be traded on-chain at any time or reused across other DeFi protocols, so your capital is never locked up.
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1. First Understand What Problem Lido Solves
Objective: Grasp why users choose Lido instead of staking ETH on their own.
Background: Under the traditional solo staking model, running an Ethereum validator node requires two strict prerequisites: a minimum of 32 ETH, and 24/7 uptime hardware plus dedicated operation and maintenance capabilities. These two requirements lock out the vast majority of retail users.
Lido's core offering is simple: you deposit any amount of ETH with no minimum threshold, the protocol aggregates all pooled ETH and assigns it to vetted professional node operators to run validators, then distributes staking rewards proportionally to all users. The stETH you receive is a share receipt representing your stake in the pool, which you can continue to use across DeFi protocols including Uniswap, Curve, and Aave. This lets you earn staking yields while putting the same capital to work to generate extra returns in other DeFi use cases.
Core Takeaway: Lido's core value proposition is "lower staking barriers + unlock liquidity for staked assets" — summed up in one sentence: no 32 ETH requirement, no need to set up your own server, you can enter and exit your position at any time.
2. Get to Know the Core Products: stETH and wstETH
Objective: Understand the difference between Lido's two token forms.
Breakdown:
stETH (Standard Version)
The 1:1 minted receipt you receive immediately after depositing ETH
Feature: Your balance changes daily — your stETH amount increases automatically when staking rewards are distributed, and decreases if slashing events occur
This mechanism is called "Rebase" (elastic supply), which works well for DeFi protocols like Curve and Yearn, but is incompatible with protocols that require fixed token balances such as Uniswap
wstETH (Wrapped Version)
A wrapped version of stETH with a fixed balance
Mechanism: Your share of the total staked pool stays fixed, but the amount of ETH that each wstETH represents grows over time as staking rewards accrue
Fully compatible with protocols that require fixed token balances such as Uniswap and MakerDAO
Core Takeaway: You can clearly distinguish the two assets: stETH has a changing balance while its underlying value remains consistent, wstETH has a fixed balance while its underlying value grows over time.
3. Simplified Explanation of How Lido Operates
Objective: Get a clear overview of the fund flow from your wallet to the active validator nodes.
Breakdown: Lido's operation mechanism can be split into 3 core steps:
Step 1: Deposit You send ETH to Lido's smart contract, and the funds first enter a temporary pool called the "Buffer". You receive an equivalent amount of stETH instantly.
Step 2: Allocation Once the Buffer pool accumulates 32 ETH, the Staking Router automatically assigns the funds to Lido's whitelisted node operators. Lido currently works with dozens of professional node operators, with funds distributed across multiple parties to reduce single point of failure risk.
Step 3: Rewards and Fees 90% of all staking rewards earned by node operators go to users (reflected as automatic growth of your stETH balance), 10% is charged as protocol fees — 5% goes to node operators, 5% goes to the Lido DAO treasury.
Core Takeaway: You can trace the full fund flow clearly: deposit ETH → receive stETH → node operators run validators → 90% of rewards go to users, 10% go to the protocol.
4. Practical Guide: How to Stake ETH via Lido
Objective: Walk through the full end-to-end staking process.
Breakdown:
Prerequisites
An Ethereum-compatible crypto wallet (MetaMask, imToken, Ledger etc.)
Enough ETH in your wallet to stake
A small amount of extra ETH reserved for gas fees
Step-by-Step Process
Visit Lido's official staking page, click "Connect Wallet" to link your wallet
Confirm your wallet is switched to the Ethereum Mainnet network
Enter the amount of ETH you want to stake in the input box (no minimum requirement)
The page will display the estimated annual percentage yield (currently around 3-3.5%) and estimated gas fee
Click "Submit", then confirm the transaction in your wallet pop-up
Once the transaction is confirmed on-chain, stETH will appear in your wallet. If it does not show up automatically, manually add the stETH token contract address to your wallet to display it
Core Takeaway: You successfully receive stETH in your wallet, and the Lido platform displays your staked balance and accumulated rewards.
Common Failure Reasons:
Insufficient gas fees: Ethereum Mainnet operations require ETH to pay for transaction processing
Incorrect wallet network: Confirm your wallet is switched to Ethereum Mainnet
Smart contract interaction failure: Some outdated wallet versions may not support the interaction, update your wallet or switch to the browser extension version
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5. How to Exit: Retrieve Your Original ETH
Objective: Learn the two available exit methods and their respective tradeoffs.
Breakdown: Lido supports two ways to convert your stETH back to ETH:
Method 1: Official Lido Unstaking
Go to the "Withdrawals" tab on Lido's official interface to submit an unstaking request
You can manually claim your ETH after approximately 5 days
The actual waiting period depends on the load of Ethereum's exit queue, and is not a fixed value
Method 2: Direct Swap on DEX
Swap stETH directly for ETH on decentralized exchanges such as Uniswap or 1inch
The transaction completes in minutes, no waiting required
You may not get 1:1 ETH for your stETH due to occasional small market discounts for stETH relative to ETH
Core Takeaway: You understand the difference between the two paths: official unstaking gives you 1:1 ETH but requires a waiting period, DEX swapping is instant but may come with a small price slippage.
Risk Reminders:
Centralization Concerns: Lido accounts for 23% of total ETH staked on the network. If Lido's node operators collude to act maliciously or experience systemic failures, it could create major risks for the entire Ethereum network, which is the core criticism facing the Lido ecosystem.
Smart Contract Risk: Even after multiple rounds of third-party security audits, all on-chain smart contracts carry inherent potential vulnerability risks.
Floating Staking Yields: The annual staking return fluctuates based on the total amount of ETH staked across the network, it is not a fixed guaranteed return.
Slashing Risk: If node operators perform maliciously or go offline for extended periods, a portion of staked ETH may be slashed, and all stETH holders will share the corresponding loss proportionally.
How to Confirm You Are Using Lido Correctly?
After you finish staking, you can see your staked balance and accumulated rewards on the Lido platform. The stETH balance in your wallet will automatically increase as Ethereum staking rewards are distributed (updates roughly every 24 hours). To verify your operation is successful, check your stETH balance 1-2 days later — if the number has grown, that means your staking rewards have been credited to your account.
