Liquidity pools are the backbone of decentralized finance. They enable trading without traditional order books, allow anyone to become a market maker, and power billions of dollars in daily volume. Understanding how they work is essential for anyone interacting with DeFi.
Traditional exchanges use order books. AMMs replace this with a mathematical formula that determines prices based on token ratios in a pool. The most common: x × y = k (constant product).
💡 How the Formula Works
In an ETH/USDC pool, the product of both quantities must stay constant. When you buy ETH, you add USDC and remove ETH. The ratio changes and price adjusts automatically — no order matching needed.
$100B+
Total DEX TVL
Uniswap
Largest AMM
0.3%
Typical swap fee
When you deposit tokens into a pool, you receive LP tokens representing your share. These can be redeemed for your proportional share plus accumulated fees.
Prove: Your ownership share of the pool
Earn: Share of all trading fees
Compose: Usable in other DeFi protocols
Redeem: Your tokens + accumulated fees
Impermanent loss occurs when the price ratio of deposited tokens changes. The greater the divergence, the more loss you experience compared to simply holding.
⚠️ Example
Deposit $1,000 ETH + $1,000 USDC. If ETH doubles, your pool position is ~$2,828 — but holding would give $3,000. The $172 gap is impermanent loss. If ETH returns to original price, the loss disappears.
2x price
≈ 5.7% IL
3x price
≈ 13.4% IL
5x price
≈ 25.5% IL
Different DEXs use AMM variations with unique LP features:
Uniswap: Pioneer AMM, concentrated liquidity, multi-chain
Curve: Optimized for stablecoins, low slippage
Raydium: Solana's largest, order book integration
PancakeSwap: BNB Chain leading DEX, yield farms
🧩 Steps
Choose a DEX and connect your wallet
Select a token pair (e.g., ETH/USDC)
Deposit equal value of both tokens
Approve transactions and confirm deposit
Receive LP tokens and start earning fees
💡 Key Consideration
LP is profitable when fees exceed impermanent loss. Stablecoin pairs are safest for LPs. Volatile pairs offer higher fees but greater IL risk.
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