Liquidity provider

A liquidity provider, or LP, is someone who deposits tokens into a pool on a decentralized exchange so other people can trade against them. Instead of matching buyers with sellers through an order book, most DEXs on Ethereum, BNB Chain, Base, and Solana let traders swap directly against that pool. The LPs supply the inventory that makes those swaps possible.

In a typical pool you deposit two assets of equal value, say a token and a stablecoin, and receive an LP token as a receipt for your share. Each swap pays a fee, often a fraction of a percent, and that fee is split among LPs in proportion to their share. When you withdraw, you redeem the receipt for your share of whatever the pool holds at that moment, which may not match what you put in.

For anyone buying a token, LPs matter because pool depth decides how far your trade moves the price. A thin pool means heavy slippage and a hard time selling. With brand-new tokens, the team is often the only LP, so they hold the LP tokens and can pull all the liquidity out at once. That is the basic mechanism behind most rug pulls.

LPs carry their own risks. If the two assets move in price relative to each other, you can end up with less value than if you had simply held them, which is called impermanent loss. Fees can offset this but do not always. In a token that collapses, you can also end up holding mostly the worthless side of the pair and very little of the asset you wanted to keep.

Before trading a small token, check who holds the LP tokens and whether they are locked or burned, and for how long. Compare the pool size to the market cap, since a large valuation sitting on a tiny pool is fragile. Also check whether liquidity is spread across several pools. Locked liquidity only closes one exit, and it does not make a token safe on its own.