Liquidity Provider
In simple terms
A liquidity provider is someone who lends their money to a crypto market so that other people can buy and sell easily. Think of it like a vending machine operator who stocks the machine—in return, they earn a small fee from each transaction.
Definition
Any participant supplying capital to markets or pools.
In depth
A liquidity provider deposits cryptocurrency into liquidity pools or automated market makers (AMMs) to enable peer-to-peer trading. In return for locking capital in the pool, providers earn a portion of transaction fees generated by trades executed against that pool, proportional to their share of total liquidity. This mechanism is essential for decentralized exchanges and derivative protocols, as it allows users to execute swaps at predetermined slippage rates rather than relying on order books.
How does Liquidity Provider work?
On an automated market maker, a liquidity provider deposits two assets into a pool, usually in equal value, and receives LP tokens recording their share. The pool prices swaps with a formula rather than an order book, so every trade changes the ratio of the two assets held. Each swap pays a fee, commonly around 0.3 percent, that accrues to the pool and therefore to providers in proportion to their share. Burning the LP tokens withdraws the current mix, which will differ from what was deposited. On centralized venues, the term instead means a firm contracted to quote continuously.
An example
Illustrative figures only. Someone adds $500 of a token and $500 of a stablecoin to a pool holding $100,000, giving them a 1 percent share. If the pool then handles $200,000 of swaps at a 0.3 percent fee, it collects $600, of which $6 is theirs. If the token's price has moved sharply meanwhile, the withdrawn mix can still be worth less than simply having held both assets.
Figures are illustrative only.
What beginners get wrong
- Advertised fee yields are not returns, and impermanent loss can exceed the fees collected when the two pooled assets move apart in price.
- Providing liquidity means holding both assets, and the pool automatically sells whichever one is rising into the incoming buyers.
- Pool contracts can be exploited or drained, and deposited funds carry that code risk for as long as they sit there.
- Withdrawing returns your share of the pool as it stands, not the same quantities of each token you originally put in.
Related terms
Part of
How does crypto trading and market structure work? — the subject page for trading and market structure, with all 27 of its definitions in one place.
Educational only — not financial advice.