What is a Liquidity Pool?

Quick Definition

A liquidity pool is a collection of tokens held in a smart contract that enables decentralized trading, lending, or other financial activities.

Full Definition

Liquidity pools are the core infrastructure of decentralized exchanges (DEXs) and the broader DeFi ecosystem. Instead of matching buyers and sellers through a traditional order book, a liquidity pool holds two or more tokens together in a smart contract. Users can trade against the pool at any time, with prices determined automatically by a mathematical formula (most commonly a "constant product" formula popularized by Uniswap).

Users who deposit tokens into a pool are called liquidity providers. In exchange for providing liquidity, they earn a share of the trading fees generated by the pool. This model enables continuous, 24/7 trading without requiring a counterparty on the other side of every trade. Anyone can swap one token for another whenever they want, as long as there's sufficient liquidity in the pool.

Benefits and risks

Liquidity pools have democratized access to financial markets. Anyone with tokens can become a market maker, and anyone with a wallet can trade. They also introduce new risks. Prices in liquidity pools are determined by the ratio of tokens in the pool, rather than by external markets, which can lead to slippage on large trades or price differences between pools and other markets. Liquidity providers also face "impermanent loss," a form of opportunity cost that occurs when the relative price of the pooled tokens changes.

Steady and liquidity pools

STDY is available through public liquidity pools on supported blockchain networks, providing a secondary market route for users to buy or sell STDY at any time. This complements direct redemption (available to qualified institutional investors through our primary market) and ensures that holders have flexible access to liquidity. Pricing in public pools is determined by supply and demand within the pool, and may differ slightly from the primary market rate.

Other Glossary Items

Learn about common and essential terms related to Steady and other stablecoin protocols.

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Liquidity Pool | Steady Glossary