What is a liquidity pool? The term is used to describe accumulated crypto tokens locked in smart contracts. The goal of these pools is to reduce liquidity and enable transactions on decentralized exchanges. They also play an important role in the DeFi ecosystem.

In this guide, we’ll explain how these pools work and what are their main advantages and disadvantages. In addition to that, we’ll tell you how to become a liquidity provider.

Learn in This Article

  • What are liquidity pools
  • Importance of a crypto liquidity pool
  • What are LPs
  • Pros and cons of liquidity pools

Liquidity Pool Definition

What is the liquidity pool in cryptocurrency? As the name suggests, a liquidity pool refers to a batch of crypto tokens and other digital assets locked in a smart contract. These pools enable trading on decentralized exchanges without the need for intermediaries — trading is managed by smart contracts. In addition to allowing trading, liquidity pools also enable borrowing and lending.

That said, liquidity pools are also the backbone of the DeFi ecosystem, and their role is to replace traditional order books. Namely, unlike order books that match buyers and sellers, liquidity pools do this automatically through the AMM protocol.

This enables fast transactions since the entire trading system is automated. AMMs will also determine the price of tokens, based on their ratio in the pool.

People can also earn money through liquidity mining pools. In other words, anyone who provides liquidity to the pool becomes a liquidity provider. Liquidity providers earn rewards or liquidity tokens. These tokens can be used for yield farming and staking. They can also be used as collateral for a crypto loan.

Now that we’ve got liquidity pools explained, let’s talk about their importance.

Importance of Liquidity Pools

The main role of the liquidity pool is to provide liquidity. This is achieved by rewarding users who lock their digital assets into the pool. Rewards come in the form of liquid pool tokens that can be used to earn passive income.

Liquidity is important, as it stabilizes the market price of tokens and reduces their volatility. Moreover, due to their decentralized nature, liquidity pools enable P2P transactions, i.e., trading without intermediaries.

These pools also ensure uninterrupted trading using the AMM protocol. As mentioned before, this protocol automatically matches sellers and buyers. Likewise, AMMs will make sure that the pool is always liquid, regardless of the trade size.

How Does a Liquidity Pool Work?

A DeFi liquidity pool matches people who want to trade their crypto assets and rewards those who lock their crypto tokens into the pool. Liquidity pools are made of at least two different token pairs. One is independently created and the other is a popular token, like ETH or BNB.

For example, if we use a Tether and Ethereum liquidity pool, we’ll have to lock a portion of both cryptocurrencies into smart contracts. Anyone who wants to trade ETH and USDT will use this liquidity pool as their source of assets.

After executing a trade through the Automated Market Maker, traders will have to pay a fee. This fee will be distributed to DEX liquidity providers in the form of LP tokens. LP holders can also earn passive income through yield farming or staking.

That said, this is the basic way most liquidity pools work.

Liquidity Providers (LPs)

The term liquidity providers in crypto refers to individuals or entities who lock their digital assets into a crypto leveraging pool.

The role of LPs is to maintain market liquidity by enabling continuous trading of crypto tokens. Liquidity providers are rewarded with LP tokens for their contribution. They can trade, stake, or transfer these tokens, depending on the platform they use. They can also take out their deposited tokens and exit the pool.

To become an LP, you must create an account on a decentralized exchange like Uniswap, Curve, or Balancer. For example, if you use Uniswap, you’ll have to open the Uniswap app and enter the Pools section. After that, you’ll have to tap the New Position button and select two tokens you want to add liquidity for.

Becoming an LP can be very lucrative, however, it also comes with certain risks. Namely, smart contracts are prone to hacks.

Pros and Cons of Liquidity Pools

The main benefits of liquidity pools are:

Improved Liquidity

Since they use AMM protocols to determine the prices of tokens, liquidity pools can reduce volatility and contribute to the stabilization of their value.


Anyone who locks their digital assets into the pool can become an LP, regardless of their financial background or location. What’s more, liquidity pools enable trading without intermediaries, which results in faster transactions.

Reduced Slippage

Slippage refers to a change in price after an order is closed. This means that crypto traders will pay a different price than what they originally asked for. Large liquidity pools can reduce slippage since they trade with a large number of tokens.

Passive Income

By participating in liquidity pools, LPs can earn passive income. Namely, LPs will receive LP tokens for each trade within the pool. They can use these tokens for staking and yield farming, or as collateral when applying for crypto loans.

Portfolio Diversification

Liquidity pools will give users insight into a large number of cryptocurrencies, both old and new. This will help them diversify their trading portfolios.

On the other hand, the main risks of participating in liquidity pools include:

Impermanent Loss

This happens when the price of a certain token within the liquidity pool starts to differ from its price on the crypto market. In other words, your token will have a lower value when you withdraw it than it had when you deposited it. If there is an equalization of the prices, this loss will be impermanent. Yet, if prices remain different, this loss will become permanent.

Hacks and Rag Pulls

LPs use smart contracts to lock their tokens in the pool, which opens up space for hackers. Namely, besides being able to steal funds from the pool, hackers can also control its prices and execute trades. And then there are rug pulls. Rug pulls refer to the sudden withdrawal of tokens from the liquidity pool, which can lead to a drop in the value of cryptocurrencies.

Front-Running Risk

Front-running is a term that refers to profiting from price movements. Front runners are traders who have information that there will be a change in the price of a certain token. They use this information to place orders before the price changes in order to profit.


Liquidity pools are important parts of the DeFi ecosystem. In other words, without them, we wouldn’t be able to conduct decentralized exchanges. Liquidity pools also contribute to liquidity since they use AMM protocols. These protocols determine the prices of tokens based on their ratio in the pool.

Furthermore, a crypto liquidity pool enables the earning of passive income through staking and yield farming. That said, their biggest disadvantage is susceptibility to cyber attacks, the possibility of impermanent loss, and manipulation by front-runners.


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